From cecilia at misu.su.se Fri May 2 10:14:21 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Fri, 02 May 2014 10:14:21 +0200 Subject: [Bolincentret-at-su.se] Review Seminar - Magnus Hieronymus - May 8 Message-ID: <536353DD.9060607@misu.su.se> SEMINAR *Name* Magnus Hieronymus Department of Meteorology, Stockholm University, Sweden *Title* Review: How nonlinearities in the equation of state of seawater can confound estimates of steric sea level change, Gille 2004. *Time and place* Thu 8 May 2014, 14.15 Room C609, Arrhenius Laboratory, 6th floor *Welcome!* --------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From annica at misu.su.se Fri May 2 15:54:49 2014 From: annica at misu.su.se (Annica Ekman) Date: Fri, 2 May 2014 15:54:49 +0200 Subject: [Bolincentret-at-su.se] RA2 workshop Friday May 9th - last minute sign up welcome Message-ID: <1b7901cf660e$164b6990$42e23cb0$@misu.su.se> Dear all, RA2 is planning a workshop next Friday (May 9th) at Ersta conference center (located on S?dermalm, www.erstadiakoni.se/sv/konferenshotell). The program (see below) will include both a science component and a more general science career/popular science presentation component. There are still some spaces available for anybody within the Bolin Centre to sign up, even if you are not (yetJ) a member of RA2 or if you are just interested in participating in this specific event. If you would like to participate, please send an email to Annica (annica at misu.su.se) latest Monday (5th of May). Program: 08.40-09.00 Coffee 09.00-09.10 Welcome 09.10-10.00 Science presentation by Peter Hess, Cornell University ?First Steps Towards a Parameterization of Ammonia Emissions in an Earth System Model: Implications for the Nitrogen Cascade? 10.00-10.45 Speed science presentations by workshop participants 10.45-11.20 Coffee 11.15-12.30 Science presentations: projects funded by RA2 12.30-13.30 Lunch 13.30-15.00 Popularizing your research (presentation and discussion/exercises led by SU Communication Office) 15.00-15.30 Coffee 15.30-16.30 Career development (presentation and discussion with Natalie Mahowald, Cornell University) Kind regards, Annica, Gunilla, Ilona (RA2 coordinators) -------------- next part -------------- An HTML attachment was scrubbed... URL: From Ilona.Riipinen at itm.su.se Mon May 5 09:52:32 2014 From: Ilona.Riipinen at itm.su.se (Ilona Riipinen) Date: Mon, 5 May 2014 07:52:32 +0000 Subject: [Bolincentret-at-su.se] Reminder: Seminar by Prof. Chak K. Chan on "Raman spectroscopy of aerosol particles" TODAY 11-12 at U36 Message-ID: <575f194af35b46d5960c0ccb9f5096be@ITMS04.ad.itm.su.se> Dear all, Just a reminder about Prof. Chan?s seminar today ?Raman spectroscopy of aerosol particles? At 11 am in room U36 at the Geohuset. See you there! Best regards, Ilona ?Ilona Riipinen, PhD, docent Associate Professor Department of Applied Environmental Science & Bert Bolin Center for Climate Research Stockholm University Sweden ilona.riipinen at itm.su.se ilona.riipinen at helsinki.fi Mobile: +358-40-7082823; +46-73-5859251 From: bolincentret-at-su.se-bounces at lists.su.se [mailto:bolincentret-at-su.se-bounces at lists.su.se] On Behalf Of Ilona Riipinen Sent: den 30 april 2014 09:10 To: bolincentret-at-su.se at lists.su.se Subject: [Bolincentret-at-su.se] Seminar by Prof. Chak K. Chang on "Raman spectroscopy of aerosol particles" Mon 5.5. 11-12 at U36 Dear all, Prof. Chak Chan from Hong Kong University of Science and Technology (http://ihome.ust.hk/~keckchan/) is visiting ITM on Monday and will give a seminar on ?Raman spectroscopy of aerosol particles? At 11 am in room U36 at the Geohuset. All welcome and feel free to distribute to potentially interested people! Best regards, Ilona Ilona Riipinen, PhD, docent Associate Professor Department of Applied Environmental Science & Bolin Center for Climate Research Stockholm University Sweden ilona.riipinen at itm.su.se ilona.riipinen at helsinki.fi Mobile: +358-40-7082823; +46-73-5859251 -------------- next part -------------- An HTML attachment was scrubbed... URL: From lina.enell at su.se Mon May 5 10:48:52 2014 From: lina.enell at su.se (Lina Enell) Date: Mon, 5 May 2014 08:48:52 +0000 Subject: [Bolincentret-at-su.se] Bolin lecture 22nd May Message-ID: <1CB497D573D7A046AD7FE76D38A8821D10C31D60@EBOX-PROD-SRV02.win.su.se> Dear all, The Bolin Lecture on Climate Research 2014 is given by Corinne Le Qu?r?, Professor of Climate Change Science and Policy at the University of East Anglia and Director of the Tyndall Centre for Climate Change Research. Titel: The role of the carbon cycle in regulating climate 22nd of May at 2 pm Aula Magna Coffee and refreshments will be served from 3 pm. Please register to lina.enell at su.se Welcome! Best regards Lina ___________________________________ Lina Enell Information officer Office of Science Stockholm University S-106 91 Stockholm +46 8-16 39 04 +46 70-21 97 828 www.science.su.se -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: BolinLectureInvitation.pdf Type: application/pdf Size: 1439865 bytes Desc: BolinLectureInvitation.pdf URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Bolinf?rel?sningInbjudan.pdf Type: application/pdf Size: 1415295 bytes Desc: Bolinf?rel?sningInbjudan.pdf URL: From cecilia at misu.su.se Mon May 5 11:27:14 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Mon, 05 May 2014 11:27:14 +0200 Subject: [Bolincentret-at-su.se] =?iso-8859-1?q?=5BCHANGE=5D_Seminar_-_Erl?= =?iso-8859-1?q?and_K=E4ll=E9n_-_May_6?= Message-ID: <53675972.5050103@misu.su.se> SEMINAR - Change of time! *Name* Erland K?ll?n ECMWF, UK *Title* Global warming hiatus and Pacific circulation anomalies *Time and place* Tue 6 May 2014 at 15.00 *NB! New time* Room C609, Arrhenius Laboratory, 6th floor Welcome! --------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From patrik.winiger at itm.su.se Mon May 5 12:32:00 2014 From: patrik.winiger at itm.su.se (Patrik Winiger) Date: Mon, 5 May 2014 12:32:00 +0200 Subject: [Bolincentret-at-su.se] BGC+ATM seminar, Tuesday 13 May at 14:00 In-Reply-To: <002601cdffa6$d7575010$8605f030$@horst@itm.su.se> References: <00e701cc67e8$df237be0$9d6a73a0$@gustafsson@itm.su.se> <001601cc88db$81af5ab0$850e1010$@horst@itm.su.se> <001801ccd9d7$6b7ea640$427bf2c0$@horst@itm.su.se> <003601ccdb75$cca34350$65e9c9f0$@horst@itm.su.se> <000001ccf6ed$6ce300c0$46a90240$@horst@itm.su.se> <007401cd1198$79c69110$6d53b330$@horst@itm.su.se> <000e01cd90c5$7ee6bba0$7cb432e0$@kirillova@itm.su.se> <003501cd9bfb$06c6c980$14545c80$@horst@itm.su.se> <000a01cda095$3d676550$b8362ff0$@horst@itm.su.se> <001d01cda7b1$e07338f0$a159aad0$@horst@itm.su.se> <000901cdad30$8605e0a0$9211a1e0$@horst@itm.su.se> <002501cdb2b4$2a24e1d0$7e6ea570$@horst@itm.su.se> <001d01cdbdb3$a50b0190$ef2104b0$@horst@itm.su.se> <000901cdc8af$712a1df0$537e59d0$@horst@itm.su.se> <000001cde914$369032d0$a3b09870$@horst@itm.su.se> <004301cdef29$e44f43f0$acedcbd0$@horst@itm.su.se> <004c01cdf32b$dba30650$92e912f0$@horst@itm.su.se> <001f01cdf89e$05 11b460$0f351d20$@hors t @itm.su.se> <002601cdffa6$d7575010$8605f030$@horst@itm.su.se> Message-ID: <536768A0.70700@itm.su.se> Live webcasts of Stockholm University's Lectures in Biogeochemistry and Atmospheric Science have been broadcasted since October 2013. You can tune-in to the live webcasts, by clicking the image above or at https://connect.sunet.se/bgcatm/ and then logging in. We maintain an archive of recordings of past lectures that can be viewed on our Vimeo page . To see a list of upcoming Lectures in Biogeochemistry and Atmospheric Science, visit: ITM's Events page . -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: BGC_ATM_Ogren_s.jpg Type: image/jpeg Size: 66605 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: BGC_ATM_Ogren.pdf Type: application/x-pdf Size: 68653 bytes Desc: not available URL: From bjorn.gunnarson at natgeo.su.se Mon May 5 14:28:18 2014 From: bjorn.gunnarson at natgeo.su.se (=?iso-8859-1?Q?Bj=F6rn_Gunnarson?=) Date: Mon, 5 May 2014 12:28:18 +0000 Subject: [Bolincentret-at-su.se] Floor ball tournament and BBQ May 28 Message-ID: <3CB4B521F2E5D246B55CA5C5B9A96D711D40F621@ebox-prod-srv06.win.su.se> Dear all For the 5th year the Climate Research School at the Bolin Centre is organizing a Innebandy tournament and a BBQ evening in order to increase the informal contacts between scientists and students active in climate research. We will play mixed teams between 11:00 and 13:00 in Frescatihallen and afterwards at 16.30 we will have a BBQ with hotdogs and refreshments for the players, the spectators, and everybody else from the four departments who wants to take advantage of this networking opportunity! There is no need to sign up, but an email indicating if you wish to attend this event is appreciated so we can plan the games and the BBQ. Don't forget 28! Best regards Bj?rn Gunnarson --------------------------------------------- Director of studies Bert Bolin Centre for Climate Research Department of Physical Geography and Quaternary Geology Stockholm University SE-106 91 Stockholm www.bbcc.su.se -------------------------------------------- +46 8 164772 -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From cecilia at misu.su.se Wed May 7 13:48:15 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Wed, 07 May 2014 13:48:15 +0200 Subject: [Bolincentret-at-su.se] Seminar - Zbigniew Sorbjan - May 13 Message-ID: <536A1D7F.7020607@misu.su.se> SEMINAR *Name* Zbigniew Sorbjan Marquette University, Milwaukee, Wisconsin, USA *Title* Gradient-based similarity in the stable atmospheric boundary layer *Time and place* Tue 13 May 2014, 11.15 Room C609, Arrhenius Laboratory, 6th floor * **Abstract* A structure of the stably-stratified atmospheric boundary layer is examined in terms of a novel gradient-based similarity theory. The presented approach introduces similarity scales, based on the vertical gradients of scalars, contrary to the traditional method, which is based on fluxes. The resulting similarity functions of the Richardson number are expressed in analytical form, valid in the entire stable boundary layer. The introduced similarity approach allows for evaluating the minimum values of the turbulent heat flux, the temperature standard deviation, and the temperature dissipation rate - as functions of the Richardson number. The obtained results imply that the "z-less similarity hypothesis" is not general, i.e. the considered dimensionless quantities are not generally constant for stable and very stable conditions. *Welcome! *--------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From leonard.barrie at geo.su.se Wed May 7 18:32:17 2014 From: leonard.barrie at geo.su.se (Leonard Barrie) Date: Wed, 7 May 2014 18:32:17 +0200 Subject: [Bolincentret-at-su.se] ECRA/ Bolin CentreConference announcement: "Our climate - our future", Berlin, Germany, 6-9 October 2014 ** abstract deadline 30 May 2014 ** Message-ID: Dear Bolin Centre Scientists The European Climate Research Alliance in which the Bolin Centre is a participating member announces this climate conference. *30 May deadline for abstracts. * Please let me know if you are going and if you submit a paper. This is a good opportunity to highlight Bolin Centre scientist's work. If you apply please add Bolin Centre to your Departmental and Stockholm U affiliation. Regards Leonard Barrie Research Director, Bolin Centre for Climate Research Professor for Climate and Atmospheric Science Department of Geological Sciences Stockholm University 106 91 Stockholm Sweden leonard.barrie at geo.su.se mobile +46761418800 work IGV +46 8164868 ____________________________ Dear ECRA members, dear all, The German Helmholtz association organizes a large international conference *"Our climate - our future" * which will be held in Berlin, Germany, from October 6 to October 9, 2014. Detailed information about the conference is available at https://reklim-conference-2014.de/. Eight sessions will cover a broad range of climate change topics from arctic change, sea level rise to chemistry climate interactions and rapid climate change. Registration fee is 150,- Euro (80,- Euro for students). *The abstract deadline is 30 May 2014*, the registration deadline is 30 August 2014. We are looking forward to your abstract contributions and your attendance, particularly in the chemistry-climate session. Martin Schultz and Peter Braesicke (session convenors) PD Dr. Martin G. Schultz IEK-8, Forschungszentrum J?lich D-52425 J?lich Ph: +49 2461 61 2831 Prof. Dr. Peter Braesicke Karlsruhe Institute of Technology (KIT) Institute for Meteorology and Climate Research (IMK) Atmospheric Trace Gases and Remote-Sensing (ASF) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen, Germany Phone: +49 721 608 22191 -- * Dr. Tina Swierczynski * Executive Secretary European Climate Research Alliance Rue du Tr?ne 98 1050 Brussels Belgium Phone: +32 2 5000 983 Fax: +32 2 5000 980 Email: tina.swierczynski at ecra-climate.de *http://www.ecra-climate.eu http://www.helmholtz.de http://www.awi.de * *awi.de * -------------- next part -------------- An HTML attachment was scrubbed... URL: From patrik.winiger at itm.su.se Mon May 12 14:16:03 2014 From: patrik.winiger at itm.su.se (Patrik Winiger) Date: Mon, 12 May 2014 14:16:03 +0200 Subject: [Bolincentret-at-su.se] Reminder: BGC+ATM seminar, TOMORROW, Tuesday 13 May at 14:00 In-Reply-To: <002601cdffa6$d7575010$8605f030$@horst@itm.su.se> References: <00e701cc67e8$df237be0$9d6a73a0$@gustafsson@itm.su.se> <001601cc88db$81af5ab0$850e1010$@horst@itm.su.se> <001801ccd9d7$6b7ea640$427bf2c0$@horst@itm.su.se> <003601ccdb75$cca34350$65e9c9f0$@horst@itm.su.se> <000001ccf6ed$6ce300c0$46a90240$@horst@itm.su.se> <007401cd1198$79c69110$6d53b330$@horst@itm.su.se> <000e01cd90c5$7ee6bba0$7cb432e0$@kirillova@itm.su.se> <003501cd9bfb$06c6c980$14545c80$@horst@itm.su.se> <000a01cda095$3d676550$b8362ff0$@horst@itm.su.se> <001d01cda7b1$e07338f0$a159aad0$@horst@itm.su.se> <000901cdad30$8605e0a0$9211a1e0$@horst@itm.su.se> <002501cdb2b4$2a24e1d0$7e6ea570$@horst@itm.su.se> <001d01cdbdb3$a50b0190$ef2104b0$@horst@itm.su.se> <000901cdc8af$712a1df0$537e59d0$@horst@itm.su.se> <000001cde914$369032d0$a3b09870$@horst@itm.su.se> <004301cdef29$e44f43f0$acedcbd0$@horst@itm.su.se> <004c01cdf32b$dba30650$92e912f0$@horst@itm.su.se> <001f01cdf89e$05 11b460$0f351d20$@hors t @itm.su.se> <002601cdffa6$d7575010$8605f030$@horst@itm.su.se> Message-ID: <5370BB83.90407@itm.su.se> Live webcasts of Stockholm University's Lectures in Biogeochemistry and Atmospheric Science have been broadcasted since October 2013. You can tune-in to the live webcasts, by clicking the image above or at https://connect.sunet.se/bgcatm/ and then logging in. We maintain an archive of recordings of past lectures that can be viewed on our Vimeo page . To see a list of upcoming Lectures in Biogeochemistry and Atmospheric Science, visit: ITM's Events page . -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: BGC_ATM_Ogren_s.jpg Type: image/jpeg Size: 66605 bytes Desc: not available URL: From elisabeth.dacker at geo.su.se Tue May 13 13:50:02 2014 From: elisabeth.dacker at geo.su.se (=?windows-1252?Q?Elisabeth_D=E4cker?=) Date: Tue, 13 May 2014 13:50:02 +0200 Subject: [Bolincentret-at-su.se] Science Forum: "A Land/Sea-Scape Perspective on Climate: Science to Policy" 21 May 2014 In-Reply-To: <5370D378.1030105@geo.su.se> References: <5370D378.1030105@geo.su.se> Message-ID: <537206EA.2070706@geo.su.se> Science Forum: "A Land/Sea-Scape Perspective on Climate: Science to Policy" Co-sponsored by The EkoKlim Centre and the Bolin Centre for Climate Research Stockholm University, Lecture Theatre Nordenski?ldsalen in Geovetenskap Building Time: 14.00?16.30, 21 May 2014 Prof. Corinne Le Qu?r? Carbon-climate feedbacks in a changing environment Prof. U. Of East Anglia, SU Bert Bolin Climate Lecturer 2014 Prof. Patrick Crill Lakes, ponds and landscape level changes in the Arctic under a changing climate Biogeochemistry, SU Dept Geological Sciences /Bolin Centre Prof. Sara Cousins A landscape perspective on land use impacts on biodiversity ? how important is climate change SU Geography and Quaternary Geology /EkoKlim Prof. Emily Boyd Governing for resilience under a changing climate University of Reading/EkoKlim Panel Discussion Refreshments and Informal Discussion Format: Four 20 min lectures and panel discussion at the end. Chairs: Professors Ove Eriksson and Leonard Barrie Very welcome! Bolin Centre for Climate Research Elisabeth D?cker -------------- next part -------------- A non-text attachment was scrubbed... Name: landsea-scape-perspective-on-climate_affisch_21may2014.pdf Type: application/pdf Size: 469050 bytes Desc: not available URL: From elisabeth.dacker at geo.su.se Tue May 13 13:50:57 2014 From: elisabeth.dacker at geo.su.se (=?windows-1252?Q?Elisabeth_D=E4cker?=) Date: Tue, 13 May 2014 13:50:57 +0200 Subject: [Bolincentret-at-su.se] Fwd: Bolin lecture 22nd May In-Reply-To: <5370CD77.70804@geo.su.se> References: <5370CD77.70804@geo.su.se> Message-ID: <53720721.7000905@geo.su.se> Dear all, The Bolin Lecture on Climate Research 2014 is given by Corinne Le Qu?r?, Professor of Climate Change Science and Policy at the University of East Anglia and Director of the Tyndall Centre for Climate Change Research. Titel:The role of the carbon cycle in regulating climate 22^nd of May at 2 pm Aula Magna Coffee and refreshments will be served from 3 pm. Register to is not necessary Welcome! Best regards Lina ___________________________________ Lina Enell Information officer Office of Science Stockholm University S-106 91 Stockholm +46 8-16 39 04 +46 70-21 97 828 www.science.su.se -------------- next part -------------- A non-text attachment was scrubbed... Name: BolinLectureInvitation.pdf Type: application/pdf Size: 1439864 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Bolinf?rel?sningInbjudan.pdf Type: application/pdf Size: 1415294 bytes Desc: not available URL: From rodrigo at misu.su.se Tue May 13 14:35:26 2014 From: rodrigo at misu.su.se (Rodrigo Caballero) Date: Tue, 13 May 2014 14:35:26 +0200 Subject: [Bolincentret-at-su.se] Qiang Fu visit Message-ID: Hi all, Qiang Fu, a professor at U. Washington specializing in changes in the hydrological cycle (see attached), will be visiting MISU next week, Tue 20 -- Thur 22 May. If you'd like to talk to Qiang, please let me know. Regards, Rodrigo -------------- next part -------------- A non-text attachment was scrubbed... Name: Science.Sherwood.2014.pdf Type: application/pdf Size: 1381102 bytes Desc: not available URL: -------------- next part -------------- ---- Rodrigo Caballero | http://people.su.se/~rcaba | phone: +46 816 4349 Department of Meteorology, Stockholm University, 106 91 Stockholm, Sweden From cecilia at misu.su.se Tue May 13 15:09:18 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Tue, 13 May 2014 15:09:18 +0200 Subject: [Bolincentret-at-su.se] Review Seminar - Erik Johansson - May 15 Message-ID: <5372197E.1060108@misu.su.se> REVIEW SEMINAR *Name* Erik Johansson Department of Meteorology, Stockholm University, Sweden *Title* Review: A Multisensor Perspective on the Radiative Impacts of Clouds and Aerosols (Henderson et al., 2012) *Time and place* Thu 15 May 2014 at 14.15 Room C609, Arrhenius Laboratory, 6th floor *Welcome!* --------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From cecilia at misu.su.se Wed May 14 14:07:48 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Wed, 14 May 2014 14:07:48 +0200 Subject: [Bolincentret-at-su.se] [CANCELED] Review Seminar - Erik Johansson - May 15 In-Reply-To: <5372197E.1060108@misu.su.se> References: <5372197E.1060108@misu.su.se> Message-ID: <53735C94.7030305@misu.su.se> REVIEW SEMINAR - *CANCELED* *Name* Erik Johansson Department of Meteorology, Stockholm University, Sweden *Title* Review: A Multisensor Perspective on the Radiative Impacts of Clouds and Aerosols (Henderson et al., 2012) *Time and place* Thu 15 May 2014 at 14.15 Room C609, Arrhenius Laboratory, 6th floor *Welcome!* --------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From rodrigo at misu.su.se Thu May 15 09:51:59 2014 From: rodrigo at misu.su.se (Rodrigo Caballero) Date: Thu, 15 May 2014 09:51:59 +0200 Subject: [Bolincentret-at-su.se] qiang fu seminar Message-ID: Hi Cecilia, could you go ahead and send out an announcement for Qiang Fu's seminar, with copy also to bolincentret-at-su.se at lists.su.se? Thanks! Rodrigo From cecilia at misu.su.se Thu May 15 10:20:30 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Thu, 15 May 2014 10:20:30 +0200 Subject: [Bolincentret-at-su.se] Seminar - Juan Restrepo - May 20 Message-ID: <537478CE.9060906@misu.su.se> SEMINAR *Name* Juan Restrepo Group Leader, Uncertainty Quantification Group Department of Mathematics, Department of Atmospheric Sciences Department of Physics, University of Arizona, U.S.A. *Title* How can you tell whether it is warming up? *Time and place* Tue 20 May 2014, 11.15 Room C609, Arrhenius Laboratory, 6th floor *Abstract* How does one determine whether the high summer temperatures in Moscow of a few years ago was an extreme climatic fluctuation or the result of a systematic global warming trend? How does one perform an analysis of the causes of this summer's high temperatures in the US, if climate variability is poorly constrained? It is only under exceptional circumstances that one can determine whether a climate signal belongs to a particular statistical distribution. In fact, climate signals are rarely "statistical.'' It is thus often the case that one relies on statistical assumptions in order to compute a trend. There are other challenges in obtaining a trend: inherent multi-scale manifestations, and nonlinearities/non-Gaussianity, incomplete knowledge of climate variability. We propose a non-parametric notion of a trend, we call the tendency, that can handle multi-scale time series and that does not rely on statistical assumptions. Its primary utility lies in the analysis of time series with the aim of discerning structure from processes that could be modeled as noise. * **Welcome!* --------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From cecilia at misu.su.se Thu May 15 10:29:27 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Thu, 15 May 2014 10:29:27 +0200 Subject: [Bolincentret-at-su.se] Seminar - Qiang Fu - May 20 Message-ID: <53747AE7.4020804@misu.su.se> SEMINAR *Name* Qiang Fu University of Washington, USA *Title* Responses of terrestrial-mean aridity to global warming *Time and place* Tue 20 May 2014, 15.15 Room C609, Arrhenius Laboratory, 6th floor *Welcome! *--------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From cecilia at misu.su.se Mon May 19 09:39:24 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Mon, 19 May 2014 09:39:24 +0200 Subject: [Bolincentret-at-su.se] Seminar - Jenny Hieronymus - May 21 Message-ID: <5379B52C.5070803@misu.su.se> SEMINAR *Name* Jenny Hieronymus Department of Meteorology, Stockholm University, Sweden *Title* The geological record of ocean acidification *Time and place* Wed 21 May 2014 at 10.15 Room A601, Arrhenius Laboratory, 6th floor * Welcome!* --------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From cecilia at misu.su.se Tue May 20 09:16:08 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Tue, 20 May 2014 09:16:08 +0200 Subject: [Bolincentret-at-su.se] Seminar - Thomas Rossby - May 26 Message-ID: <537B0138.3090203@misu.su.se> SEMINAR *Name* Thomas Rossby Graduate School of Oceanography University of Rhode Island, USA *Title* On the dynamics of a solitary lens in the SE Pacific, its origin, and remarkably slow decay. Where does it fit in the global 'zoo' of oceanic lenses? *Time and place* Mon 26 May 2014 at 14.15 Room C609, Arrhenius Laboratory, 6th floor *Welcome!* --------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From leonard.barrie at geo.su.se Tue May 20 09:26:30 2014 From: leonard.barrie at geo.su.se (Leonard Barrie) Date: Tue, 20 May 2014 09:26:30 +0200 Subject: [Bolincentret-at-su.se] Fwd: [Seminarie kallelse] Let's talk Earth - June 10 In-Reply-To: <537A082A.6070803@misu.su.se> References: <537A082A.6070803@misu.su.se> Message-ID: Note this climate forum Leonard Barrie Research Director, Bolin Centre for Climate Research Professor for Climate and Atmospheric Science Department of Geological Sciences Stockholm University 106 91 Stockholm Sweden leonard.barrie at geo.su.se mobile +46761418800 work IGV +46 8164868 ---------- Forwarded message ---------- From: Cecilia Wessl?n Date: Mon, May 19, 2014 at 3:33 PM Subject: [Seminarie kallelse] Let's talk Earth - June 10 To: seminarie at misu.su.se Climate Change is Happening: So What Now? Following last year's landmark report on the scientific basis of climate change, the Intergovernmental Panel on Climate Change (IPCC), in two new reports, predicted future food and water supply insecurities but ensured that we can afford to transition to clean energy without sacrificing our living standards. Is this the end of business as usual for fossil fuels? TIME AND PLACE Tuesday, June 10 at 15.00-18.00 Nordenski?ldsalen, Geovetenskapens Hus *PROGRAM* 15.00 - 16.00 Panel discussion 16.00 - 16.15 Q & A 16.15 - 16.30 Surprise guest! 16.30 - Meet & Mingle with more surprises in store! *PANEL* Johan Kuylenstierna | SEI Illona Riipinen | ITM Marianne Lilliesk?ld | Naturv?rdsverket Moderator: Ylva Rylander | SEI See the attached invitation! The registration will open soon at www.ees.su.se *Section for Earth and Environmental Sciences* _______________________________________________ Seminarie-at-misu.su.se mailing list Seminarie-at-misu.su.se at lists.su.se https://lists.su.se/mailman/listinfo/seminarie-at-misu.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: ipcc_posterA4_E-Mail_n.pdf Type: application/acrobat Size: 580653 bytes Desc: not available URL: From cecilia at misu.su.se Tue May 20 12:06:28 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Tue, 20 May 2014 12:06:28 +0200 Subject: [Bolincentret-at-su.se] [Reminder] Bolin Forum and Bolin Lecture this week Message-ID: <537B2924.1050608@misu.su.se> BOLIN FORUM Co-sponsored by The EkoKlim Centre and the Bolin Centre for Climate Research *Title* A Land/Sea-Scape Perspective on Climate: Science to Policy *Time and place* Wed 21 May 2014, 14.00-16.30 Lecture Theatre Nordenski?ldsalen, Geovetenskap Building *Prof. Corinne Le Qu?r? * Carbon-climate feedbacks in a changing environment Prof. U. Of East Anglia, SU Bert Bolin Climate Lecturer 2014 *Prof. Patrick Crill * Lakes, ponds and landscape level changes in the Arctic under a changing climate Biogeochemistry, SU Dept Geological Sciences /Bolin Centre *Prof. Sara Cousins * A landscape perspective on land use impacts on biodiversity -- how important is climate change SU Geography and Quaternary Geology /EkoKlim *Prof. Emily Boyd * Governing for resilience under a changing climate University of Reading/EkoKlim *Panel Discussion * Refreshments and Informal Discussion Format: Four 20 min lectures and panel discussion at the end. Chairs: Professors Ove Eriksson and Leonard Barrie BOLIN LECTURE *Name* Corinne Le Qu?r?, Professor of Climate Change Science and Policy University of East Anglia Director of the Tyndall Centre for Climate Change Research *Title* The role of the carbon cycle in regulating climate * **Time and place* Thu 22 May 2014, 2pm Aula Magna, Stockholm University The lecture will be given in English. Coffee and refreshments will be served from 3pm. *Welcome!* More information: The Bolin Centre for Climate Research -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From cecilia at misu.su.se Tue May 20 14:10:16 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Tue, 20 May 2014 14:10:16 +0200 Subject: [Bolincentret-at-su.se] [CHANGE OF TIME] Seminar - Thomas Rossby - May 26 In-Reply-To: <537B0138.3090203@misu.su.se> References: <537B0138.3090203@misu.su.se> Message-ID: <537B4628.9080707@misu.su.se> SEMINAR*- New time Name* Thomas Rossby Graduate School of Oceanography University of Rhode Island, USA* Title* On the dynamics of a solitary lens in the SE Pacific, its origin, and remarkably slow decay. Where does it fit in the global 'zoo' of oceanic lenses?* Time and place* Mon 26 May 2014 at 11.15 *New time!* Room C609, Arrhenius Laboratory, 6th floor* Welcome!* --------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From helen.coxall at geo.su.se Tue May 20 21:45:19 2014 From: helen.coxall at geo.su.se (Helen Coxall) Date: Tue, 20 May 2014 21:45:19 +0200 Subject: [Bolincentret-at-su.se] Paleoclimate seminar Carrie Lear 26 May 11.15 Message-ID: <537BB0CF.2040707@geo.su.se> SEMINAR *Name* Br?gger seminar series Department of Geological Sciences Dr Carrie Lear Department of Earth and Ocean Sciences, Cardiff University, UK *Title* The Dynamic Cryosphere: A Miocene perspective *Time and place* Monday 26 at 11.15 Ahlmannsalen, Geovetenskapens hus Co-sponsored by the Bolin Centre for Climate Research Contact: helen.coxall at geo.su.se *Welcome!* -------------- next part -------------- An HTML attachment was scrubbed... URL: From cecilia at misu.su.se Wed May 21 10:45:16 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Wed, 21 May 2014 10:45:16 +0200 Subject: [Bolincentret-at-su.se] [CHANGE OF TIME AGAIN] Seminar - Thomas Rossby - May 26 In-Reply-To: <537B4628.9080707@misu.su.se> References: <537B0138.3090203@misu.su.se> <537B4628.9080707@misu.su.se> Message-ID: <537C679C.8040809@misu.su.se> SEMINAR - *Back to the original time (14.15) * /We apologize for the confusion. In this way you'll be able to attend both the IGV and MISU seminars on Monday./ * Name* Thomas Rossby Graduate School of Oceanography University of Rhode Island, USA* Title* On the dynamics of a solitary lens in the SE Pacific, its origin, and remarkably slow decay. Where does it fit in the global 'zoo' of oceanic lenses?* Time and place* Mon 26 May 2014 at 14.15 *New time!* Room C609, Arrhenius Laboratory, 6th floor* Welcome!* --------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From barbara.wohlfarth at geo.su.se Wed May 21 11:09:08 2014 From: barbara.wohlfarth at geo.su.se (Barbara Wohlfarth) Date: Wed, 21 May 2014 11:09:08 +0200 Subject: [Bolincentret-at-su.se] Nominate geoscientists for EGU medals In-Reply-To: References: Message-ID: <537C6D34.7000102@geo.su.se> -------- Original Message -------- Subject: EGU: 2015 Awards and Medals Nominations & 2015 Meeting Support Date: Wed, 21 May 2014 10:10:52 +0200 From: EGU Executive Office Reply-To: secretariat at egu.eu To: barbara.wohlfarth at geo.su.se We would like to draw your attention to the Awards & Medals and the co-sponsored meetings programmes of the European Geosciences Union (EGU) for the year 2015. ------------------------------------------------------------ Awards and Medals 2015 - Open for Nominations ------------------------------------------------------------ The Awards and Medals programme of the European Geosciences Union (EGU) for the year 2015 is now open for nominations: http://www.egu.eu/awards-medals/awards-and-medals.html The final deadline for submissions is 15 June, 2014. Please see: http://www.egu.eu/awards-medals/proposal-and-selection-of-candidates.html for more information on proposing candidates and on the selection process. The awards will be presented at the EGU General Assembly 2015 (12 ? 17 April) in Vienna. Nominations for all the Medals and Awards should be sent by email to awards.medals at egu.eu. Before submitting a nomination, please take a look at our checklist at: http://www.egu.eu/awards-medals/checklist-for-submitting-nominations.html to make sure your nomination and supporting documents satisfy the EGU requirements. The EGU particularly encourages the community to promote the best deserving geoscientists from around the world with particular regard to gender, ethnic, geographical and cultural balance. Please consider submitting a nomination. We thank you very much for your support to the EGU Awards and Medals programme! --------------------------------------------------------------------------------- EGU Meetings Support for 2015 - Open from 1. June - 31. July 2014 --------------------------------------------------------------------------------- The EGU welcomes proposals for Topical Meetings, Training Schools and Workshops, as well as applications for EGU Sponsorship of External Meetings, for the year 2015. Successful proposals result in high profile EGU events with financial support. Proposals for events in 2015 must be submitted by 31 July 2014 only via the online form on the EGU website: http://www.egu.eu/meetings/support-request/form.html (THIS LINK WILL BE OPENED 1. JUNE). More information about the aims, format and mechanisms of the EGU co-sponsored meetings programme together with application guidelines can be found at http://www.egu.eu/meetings/support-request.html Kind regards, EGU Executive Office -------------- next part -------------- An HTML attachment was scrubbed... URL: From alasdair.skelton at geo.su.se Wed May 21 11:18:03 2014 From: alasdair.skelton at geo.su.se (Alasdair Skelton) Date: Wed, 21 May 2014 11:18:03 +0200 Subject: [Bolincentret-at-su.se] Science Forum - Today - Reminder Message-ID: <001b01cf74d5$91dc6570$b5953050$@geo.su.se> Dear Bolin scientists, Please make a special effort to come to today?s science forum from 14:00 to 16:30 in Nordenski?ldsalen (Geovetenskapens hus). This is particularly important because a lot of our scientists are in G?teborg preparing for SWERUS-C3. Even if you can only come for part of the forum your participation would be very much appreciated. Many thanks, Alasdair Alasdair Skelton Professor of Geochemistry and Petrology Department of Geological Sciences Stockholm University 106 91 Stockholm Sweden +46 8 164750 / +46 76 7707699 Director of the Bolin Centre for Climate Research Director of the Research School focusing on Natural Hazards -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Agenda for 21 May 2014 Bolin Centre Science Forum Final.pdf Type: application/pdf Size: 110498 bytes Desc: not available URL: From cecilia at misu.su.se Wed May 21 11:32:06 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Wed, 21 May 2014 11:32:06 +0200 Subject: [Bolincentret-at-su.se] Seminar - Marin Stanev - May 27 Message-ID: <537C7296.2090100@misu.su.se> SEMINAR *Name* Marin Stanev Department of Meteorology, Stockholm University, Sweden *Title* Analysis of Simultaneous Wind Measurements in the Mesosphere Using Doppler-Wind Lidar and Rocketsondes *Time and place* Tue 27 May 2014, 11.15 Room C609, Arrhenius Laboratory, 6th floor *Welcome!* --------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From cecilia at misu.su.se Thu May 22 11:03:58 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Thu, 22 May 2014 11:03:58 +0200 Subject: [Bolincentret-at-su.se] Seminar - Andrew Turner - May 22 Message-ID: <537DBD7E.4090102@misu.su.se> SEMINAR *Name* Andrew Turner NCAS-Climate/Department of Meteorology, University of Reading, Reading, UK *Title* Coupled models show systematic delay to Asian summer monsoon onset compared to their atmosphere-only components *Time and place* Thu 22 May 2014, 16.00 Room C609, Arrhenius Laboratory, 6th floor *Welcome!* --------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From a.hannachi at misu.su.se Thu May 22 15:26:44 2014 From: a.hannachi at misu.su.se (Abdel Hannachi) Date: Thu, 22 May 2014 15:26:44 +0200 Subject: [Bolincentret-at-su.se] Reminder about Monsoon talk by Andy Turner - May 22 In-Reply-To: <537DBD7E.4090102@misu.su.se> References: <537DBD7E.4090102@misu.su.se> Message-ID: <537DFB14.7080307@misu.su.se> -------- Original Message -------- Subject: [Bolincentret-at-su.se] Seminar - Andrew Turner - May 22 Date: Thu, 22 May 2014 11:03:58 +0200 From: Cecilia Wessl?n Reply-To: cecilia at misu.su.se Organization: Stockholm University To: seminarie at misu.su.se, bolincentret-at-su.se at lists.su.se SEMINAR *Name* Andrew Turner NCAS-Climate/Department of Meteorology, University of Reading, Reading, UK *Title* Coupled models show systematic delay to Asian summer monsoon onset compared to their atmosphere-only components *Time and place* Thu 22 May 2014, 16.00 Room C609, Arrhenius Laboratory, 6th floor *Welcome!* --------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- _______________________________________________ Bolincentret-at-su.se mailing list Bolincentret-at-su.se at lists.su.se https://lists.su.se/mailman/listinfo/bolincentret-at-su.se From alasdair.skelton at geo.su.se Fri May 23 07:57:09 2014 From: alasdair.skelton at geo.su.se (Alasdair Skelton) Date: Fri, 23 May 2014 07:57:09 +0200 Subject: [Bolincentret-at-su.se] Webinars Message-ID: <000001cf764b$da414890$8ec3d9b0$@geo.su.se> This e-mail is for PhD students of the Bolin Centre: Dear PhD students, The Bolin Centre is looking to employ a team of 2-3 PhD students to take responsibility for coordinating ?webinars?. This would mean that you would need to attend Bolin seminars and you would coordinate broadcasting of these seminars on the Internet and to our partners at SMHI. The estimated commitment would be 30 hours annually (for 10 seminars) plus training. You would not all need to be present at all seminars, but your team would need to coordinate so that one of you was there. You will receive full training and prolongation/payment for your time according to your Departments own policy. The Bolin Centre will pay these costs. You will need to check with your PhD supervisor and your Director of Studies before accepting this offer of employment. In Swedish, ?f?rst till kvarn? ? so, please respond quickly. Best wishes, Alasdair Alasdair Skelton Professor of Geochemistry and Petrology Department of Geological Sciences Stockholm University 106 91 Stockholm Sweden +46 8 164750 / +46 76 7707699 Director of the Bolin Centre for Climate Research Director of the Research School focusing on Natural Hazards -------------- next part -------------- An HTML attachment was scrubbed... URL: From cecilia at misu.su.se Fri May 23 13:32:37 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Fri, 23 May 2014 13:32:37 +0200 Subject: [Bolincentret-at-su.se] =?iso-8859-1?q?Seminar_-_Marcus_L=F6fvers?= =?iso-8859-1?q?tr=F6m_-_TODAY!?= Message-ID: <537F31D5.1040902@misu.su.se> SEMINAR - *New time* *Name* Marcus L?fverstr?m Department of Meteorology, Stockholm University, Sweden *Title* Evolution of the large-scale atmospheric circulation in response to changing ice sheets over the last glacial cycle *Time and place* Fri 23 May 2014, 15.00 *New time, today!* Room C609, Arrhenius Laboratory, 6th floor *Welcome!* --------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From cecilia at misu.su.se Tue May 27 13:58:19 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Tue, 27 May 2014 13:58:19 +0200 Subject: [Bolincentret-at-su.se] PhD defense - Magnus Hieronymus - June 3 Message-ID: <53847DDB.2000909@misu.su.se> PhD defense *Name* Magnus Hieronymus Department of Meteorology, Stockholm University, Sweden *Title* An investigation into ocean thermodynamics and water-mass transformation *Time and place* Tue 3 June 2014, 10.00 Room Nordenski?ldsalen, Geovetenskapens Hus, Svante Arrhenius v?g 12 *Abstract* This thesis presents oceanic budgets of potential temperature, salinity and buoyancy as well as a novel way of diagnosing water-mass transformation in salinity-temperature space. The buoyancy of seawater is given by a nonlinear function of temperature, salinity and pressure and much of the work in this thesis revolves around how fluxes of heat and salinity influence the buoyancy of seawater through these nonlinearities. Another large part of the material in this thesis is aimed at quantifying the relative importance of different processes for the vertical transport of heat and salinity in the ocean. Careful analysis of those fluxes in an ocean model reveal the different effects of e.g. advection, diffusion and penetrative shortwave radiation. An interesting finding is that the diffusive fluxes due to isoneutral diffusion (diffusion along density surfaces) and dianeutral diffusion (diffusion across density surfaces) have opposing effects on the oceanic heat and salinity budgets. The final major topic of this thesis is water-mass transformation. A quantitative framework for the study of water-mass transformation in salinity-temperature space is introduced. A continuity equation is also derived for salinity-temperature space, which can be used to calculate the time rate of change of volume in a small salinity-temperature interval. The water-mass transformation framework is applied in an ocean general circulation model, and it is shown how the volume distribution in salinity-temperature space is affected by the different tracer fluxes in the model. It is also shown how the transformation framework is related to earlier work on thermohaline streamfunctions. * **Welcome! *--------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From cecilia at misu.su.se Wed May 28 11:49:38 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Wed, 28 May 2014 11:49:38 +0200 Subject: [Bolincentret-at-su.se] Seminar - Stephen Griffies - June 4 Message-ID: <5385B132.4060707@misu.su.se> SEMINAR *Name* Stephen Griffies Department of Meteorology, Stockholm University, Sweden * **Title* Impacts of the ocean mesoscale on ocean heat *Time and place* Wed 4 June 2014, 15.00 Room A601, Arrhenius Laboratory, 6th floor * **Abstract* We characterize impacts from the ocean mesoscale on heat in the global climate system. Our tool is a suite of centennial-scale 1990 radiatively forced numerical climate simulations from three coupled models, whereby the models differ only in their ocean configuration. Analyses of various physical ocean features in this GFDL CM2-O climate model suite reveals that the finest resolution ocean (the CM2.6 climate model with 1/10 degree ocean grid spacing) experiences the smallest temperature drift from the initial conditions, and in turn the least amount of ocean heat uptake. The coarser models in the suite include one that aims to parameterize mesoscale eddies (CM2-1deg with a nominally 1-degre ocean grid spacing), and CM2.5 (using a 1/4-degree ocean grid spacing). CM2.5 permits mean and transient mesoscale features, but they are far less rich and vigorous than in CM2.6. We conclude that the relatively small drift in CM2.6 results from the vigorous transient mesoscale eddies and the relatively energetic fine scale time mean high latitude currents. We highlight two features of the ocean mesoscale to support our conclusions. First, stronger northern high latitude time mean currents in both CM2.5 and CM2.6 maintain a realistic sea ice extent, even in the presence of a less vigorous Atlantic overturning circulation than in the coarsest model CM2-1deg. Consequently, the northern high latitudes in CM2.5 and CM2.6 do not experience the significant surface cooling realized in CM2-1deg, nor the associated widespread North Atlantic and North Pacific sea ice extents.Representation of fine-scale currents and the associated gyre heat transport represents a fundamentally new regime for the fine resolution simulations relative to the coarser models, whose heat transport is dominated by broad-scale currents. Second, analysis of the ocean heat budget reveals that mesoscale eddies act regionally and globally to transport heat upward in a manner that partially compensates for the downward heat transport from the time mean flow. In turn, the stronger vertical eddy transport in CM2.6 relative to CM2.5 accounts for the significantly smaller temperature drift in CM2.6. The mesoscale eddy parameterization used in CM2-1deg also affects a vertical heat transport, yet it is insufficient to realize the small watermass drift found in CM2.6. Our analysis points to the fundamental role that ocean mesoscale features, including mean currents and transient eddies, play in establishing both the mean climate state and transient response to anthropogenic forcing. *Welcome!* --------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From cecilia at misu.su.se Wed May 28 15:08:22 2014 From: cecilia at misu.su.se (=?ISO-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Wed, 28 May 2014 15:08:22 +0200 Subject: [Bolincentret-at-su.se] PhD defense - Jenny Lindvall - June 5 Message-ID: <5385DFC6.6020301@misu.su.se> PhD defense *Name* Jenny Lindvall Department of Meteorology, Stockholm University, Sweden *Title* The Representation of Atmospheric Boundary Layer Processes in Global Climate Models *Time and place* Thu 5 June 2014, 10.00 Room Nordenski?ldsalen, Geovetenskapens Hus, Svante Arrhenius v?g 12 *Abstract* The atmospheric boundary layer is the lowest part of the atmosphere, which is in direct contact with the surface. It is here, in this turbulent layer, that the exchange of heat, moisture and momentum between the surface and the atmosphere takes place. This thesis examines how well the boundary layer is described in global climate models with particular focus on the representation of the diurnal cycle. Two versions of the Community Atmosphere Model (CAM) that employ different turbulence parameterizations are evaluated in the same model framework. It is found that both overestimate the amplitude of the diurnal cycles of near-surface variables compared to observations from flux tower sites. The 10-m wind is much lower in CAM5 than in CAM4 due to the Turbulent Mountain Stress (TMS) parameterization of subgrid orography in CAM5. Additionally, the diurnal temperature range (DTR) is studied in a large set of models participating in the fifth phase of the Coupled Model Intercomparison Project (CMIP5). The model discrepancies are large both in simulations of the present day and in projections of the future. A correlative approach is used to assess which parameters are important for the model differences in DTR. No single parameter is found to be responsible, but clouds play an important role in all seasons and so do the evaporative fraction in summer. The diurnal cycles of these CMIP5 models are also evaluated against flux tower observations. The diurnal cycle of temperature is well captured, while most variables show a large inter-model spread. A subset of the models are analyzed deeper regarding their vertical boundary layer structure for a flux site in Oklahoma. A substantial warm summer bias is revealed in the models. Finally, the impact of TMS and changes in the vertical diffusion in CAM5 is studied. It is found that, although the inclusion of TMS leads to an improved large-scale circulation, the wind turning becomes too strong, which adds to the overestimation of the ageostrophic flow in the boundary layer. Instead, increasing the diffusivity in stable conditions tends to both degrade the large-scale circulation and cause an underestimated wind turning in the boundary layer. *Welcome!* --------------------- Check all seminars: www.misu.su.se Department of Meteorology, Stockholm University -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From georgia.destouni at natgeo.su.se Fri May 30 10:33:12 2014 From: georgia.destouni at natgeo.su.se (Gia Destouni) Date: Fri, 30 May 2014 10:33:12 +0200 Subject: [Bolincentret-at-su.se] PhD defense - Katerina Mazi - June 12 Message-ID: <59D66940-3087-4D01-B115-D5EAD05A8D57@natgeo.su.se> PhD defense Name Katerina Mazi Department of Physical Geography and Quaternary Geology, Stockholm University, Sweden Title Seawater intrusion risks and controls for safe use of coastal groundwater under multiple change pressures Time and place Thu 12 June 2014, 13.00 Room H?gbomsalen, Geovetenskapens Hus, Svante Arrhenius v?g 12 Abstract In the era of intense pressures on water resources, the loss of groundwater by increased seawater intrusion (SWI), driven by climate, sea level and landscape changes, may be critical for many people living in commonly populous coastal regions. Analytical solutions have been derived here for interface flow in coastal aquifers, which allow for simple quantification of SWI under extended conditions from previously available such solutions and are suitable for first-order regional vulnerability assessment and mapping of the implications of climate- and landscape-driven change scenarios and related comparisons across various coastal world regions. Specifically, the derived solutions can account for the hydraulically significant aquifer bed slope in quantifying the toe location of a fresh-seawater sharp interface in the present assessments of vulnerability and safe exploitation of regional coastal groundwater. Results show high nonlinearity of SWI responses to hydro-climatic and groundwater pumping changes on the landside and sea level rise on the marine side, implying thresholds, or tipping points, which, if crossed, may lead abruptly to major SWI of the aquifer. Critical limits of coastal groundwater change and exploitation have been identified and quantified in direct relation to prevailing local-regional conditions and stresses, defining a safe operating space for the human use of coastal groundwater. Generally, to control SWI, coastal aquifer management should focus on adequate fresh groundwater discharge to the sea, rather than on maintaining a certain hydraulic head at some aquifer location. First-order vulnerability assessments for regional Mediterranean aquifers of the Nile Delta Aquifer, the Israel Coastal Aquifer and the Cyprus Akrotiri Aquifer show that in particular the first is seriously threatened by advancing seawater. Safe operating spaces determined for the latter two show that the current pumping schemes are not sustainable under declining recharge. Welcome! -- Georgia Destouni Professor of Hydrology, Hydrogeology and Water Resources Department of Physical Geography and Quaternary Geology Stockholm University SE-106 91 Stockholm Telephone: +46 (0)8 164785 Fax: +46 (0)8 16 4794 e-mail: georgia.destouni at natgeo.su.se http://giadestouni.blogspot.se/ -------------- next part -------------- An HTML attachment was scrubbed... URL: