From cecilia at misu.su.se Thu Dec 1 11:50:13 2016 From: cecilia at misu.su.se (=?iso-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Thu, 1 Dec 2016 10:50:13 +0000 Subject: [Bolincentret-at-su.se] MISU Seminar Series - What are they up to in Gothenburg? - December 6 Message-ID: MISU SEMINAR SERIES Name Patrick Eriksson Earth and Space Sciences Chalmers University of Technology Title Removing blind spots in the atmospheric water cycle - Satellite measurements of humidity and ice content Time and place Tuesday 6 December 2016, 11.15 Room C609, Arrhenius Laboratory, 6th floor Welcome! See also the attached invitation [cid:image003.png at 01D24BC9.11F9A9D0] ------------------------------------------- See all seminars: misu.su.se Subscribe to our YouTube Channel: MISU on YouTube Follow MISU on Facebook and Twitter -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: -------------- next part -------------- A non-text attachment was scrubbed... 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Name: SeminarDec6_HT2016.pdf Type: application/pdf Size: 1422052 bytes Desc: SeminarDec6_HT2016.pdf URL: From Karin.Strom at aces.su.se Fri Dec 2 09:12:26 2016 From: Karin.Strom at aces.su.se (=?iso-8859-1?Q?Karin_Str=F6m?=) Date: Fri, 2 Dec 2016 08:12:26 +0000 Subject: [Bolincentret-at-su.se] Today!: Invitation to PhD defence 2 December 2016 Patrik Winiger Message-ID: <0f7bd964f79f4e7090eda220a3eb5ea2@ITMS04.ad.itm.su.se> [cid:image001.png at 01D24C6E.486D4580] Karin Ström Research engineer Environmental representative Administrator for PhDs and students ACES - Department of Environmental Science and Analytical Chemistry Stockholm University S-106 91 Stockholm, Sweden Phone +46 8 674 74 72 Fax +46 8 674 76 38 karin.strom at aces.su.se www.aces.su.se www.su.se/miljo Please consider the environment before printing. -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... 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Name: Invitation_PHD_Defense_AES_Patrik_20160102.pdf Type: application/pdf Size: 163996 bytes Desc: Invitation_PHD_Defense_AES_Patrik_20160102.pdf URL: From rodrigo at misu.su.se Mon Dec 5 12:28:19 2016 From: rodrigo at misu.su.se (Rodrigo Caballero) Date: Mon, 5 Dec 2016 11:28:19 +0000 Subject: [Bolincentret-at-su.se] Fwd: Pls FWD: Ph.D. Position in Ocean/Atmosphere Dynamics and Modeling References: Message-ID: Begin forwarded message: From: "Anderson, Bruce" > Subject: Pls FWD: Ph.D. Position in Ocean/Atmosphere Dynamics and Modeling Date: 1 December 2016 at 20:18:37 GMT+1 To: "Anderson, Bruce" > Hi Everyone, Sorry for the blanket e-mail, but a research team I’m heading up currently has a new opening for a multi-year Ph.D. researcher to investigate extratropical atmospheric influences on the evolution of El Nino/Southern Oscillation (ENSO) events. The reason for writing now is that I am really hoping you can have any top-notch students you know apply this coming winter (January 31, 2017). The position itself will be offered through Boston University’s Department of Earth and Environment, although the student will closely collaborate with scientists at Univ. of Miami, Texas A&M and NOAA. The student will be responsible for leading an investigation of the dynamic and thermodynamic response of the tropical Pacific to extratropical-induced trade-wind variations. In addition, the student will have the opportunity to help design, conduct and analyze computer model simulations of the ocean and atmosphere at NCAR’s new Supercomputing Center. There are also funds available to attend national and international conferences, and do extended research with collaborators in both academic and federal research labs. Suitable backgrounds for applicants include a Bachelors or Masters degree in Atmospheric Sciences, Oceanography, or related fields. If you have any students who might be interested, they can contact myself (Bruce Anderson, brucea at bu.edu), Renellys Perez (Renellys.C.Perez at noaa.gov) or Benjamin Giese (b-giese at tamu.edu) for more details about the project. The application deadline for doctoral programs in the Department of Earth & Environment is January 31, 2017. All applications must be submitted on-line (http://www.bu.edu/cas/prospective-students/graduate-admissions/apply/). The Department itself comprises ~30 full-time faculty and 50 PhD students, with additional cross-disciplinary resources available through both the BU Marine Program and the Biogeosciences Program. Boston University guarantees PhD students five years of funding through a mix of teaching and research fellowships. For more information about the Department or the application, please contact Alissa Beideck, Graduate Program Coordinator, at abeideck at bu.edu. More information can also be found on the Departmental website (https://www.bu.edu/earth/). Many thanks for circulating this around to your department/students! All the best, Bruce ------------------------------------------------------ Bruce T. Anderson, Professor & Assoc. Chair Dep't. Of Earth and Environment, Boston University 685 Commonwealth Ave., Rm.130 Boston MA 02151 Ph: 617-353-4807 Email: brucea at bu.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: From cecilia at misu.su.se Mon Dec 5 14:23:00 2016 From: cecilia at misu.su.se (=?iso-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Mon, 5 Dec 2016 13:23:00 +0000 Subject: [Bolincentret-at-su.se] [Reminder]: MISU Seminar Series - What are they up to in Gothenburg? - December 6 Message-ID: Reminder about tomorrow's seminar: MISU SEMINAR SERIES Name Patrick Eriksson Earth and Space Sciences Chalmers University of Technology Title Removing blind spots in the atmospheric water cycle - Satellite measurements of humidity and ice content Time and place Tuesday 6 December 2016, 11.15 Room C609, Arrhenius Laboratory, 6th floor Welcome! See also the attached invitation [cid:image001.png at 01D24F03.1413BDE0] ------------------------------------------- See all seminars: misu.su.se Subscribe to our YouTube Channel: MISU on YouTube Follow MISU on Facebook and Twitter -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image002.png Type: image/png Size: 1147293 bytes Desc: image002.png URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.png Type: image/png Size: 596737 bytes Desc: image001.png URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: SeminarDec6_HT2016.pdf Type: application/pdf Size: 1422052 bytes Desc: SeminarDec6_HT2016.pdf URL: From Alasdair.Skelton at geo.su.se Tue Dec 6 11:46:03 2016 From: Alasdair.Skelton at geo.su.se (Alasdair Skelton) Date: Tue, 6 Dec 2016 10:46:03 +0000 Subject: [Bolincentret-at-su.se] Klimatfestivalen - Climate Science Festival Message-ID: <2f3b0daf3e534cc5ace8903ca61f0f91@ebox-prod-srv08.win.su.se> Dear Members of the Bolin Centre, Following on from the success of the Bolin Days for Schools, we will launch "Klimatfestivalen" in 2017. The starting point of this event which targets schools, teachers and other members of the general public is that climate change is happening and will continue to happen. The focus is "Vad kan vi göra? / What can we do?". "Klimatfestivalen" will be a "celebration" of what we (scientists/society) are already doing and what we are working towards doing to mitigate the causes and effects of climate change. Our aim is to help toward reducing fear of climate change by replacing it with hope and action. The event which will be held on May 15-19 and includes the Bert Bolin Climate Lecture on May 18 will involve activities for schools as well as open lectures in the evening. This e-mail is a call for ideas for hands-on activities for school children which in a simple hands on manner convey what we (scientists/society) can do, are doing and/or are working towards doing to mitigate the causes and effects of climate change. We are also looking for suggested speakers, who can convey present knowledge about mitigation of the causes and effects of climate change to a wider audience. By suggesting a hands on activity you are *** NOT *** committing yourself to helping at this event. We will be funding PhD students and undergraduate students to help with activities as part of their post/undergraduate training. On the other hand, you are of course welcome to participate. Please send ideas directly to me before January 17. I thank you for your help. Best wishes, Alasdair Alasdair Skelton Professor of Geochemistry and Petrology Director of the Bolin Centre for Climate Research Department of Geological Sciences Stockholm University 106 91 Stockholm Sweden Telephone: +46 76 7707699 E-mail: alasdair.skelton at geo.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From cecilia at misu.su.se Wed Dec 7 15:58:14 2016 From: cecilia at misu.su.se (=?iso-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Wed, 7 Dec 2016 14:58:14 +0000 Subject: [Bolincentret-at-su.se] Seminar tomorrow - Thomas Kuhn Message-ID: SEMINAR Name Thomas Kuhn Luleå University of Technology, Sweden Title In-situ ice crystal properties at high-latitudes Time and place Thursday 8 December 2016, 14.15 Rossbysalen C609, Arrhenius Laboratory, 6th floor Welcome! ------------------------------------------- See all seminars: misu.su.se Subscribe to our YouTube Channel: MISU on YouTube Follow MISU on Facebook and Twitter -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From gudrun at math.su.se Wed Dec 7 16:07:06 2016 From: gudrun at math.su.se (=?utf-8?B?R3VkcnVuIEJyYXR0c3Ryw7Zt?=) Date: Wed, 7 Dec 2016 15:07:06 +0000 Subject: [Bolincentret-at-su.se] Master's thesis in mathematical statistics on aerosols Message-ID: <499A6884-136F-4A51-B6B3-479277220FF5@math.su.se> Hi Everyone! I thought the following might be of interest to people at the Bolin Center. Gudrun Brattström Dept of Math Stockholm University Time: Wednesday December 14 at 9:00 Venue: Room 32, House 5, Kräftriket http://www.math.su.se/om-oss/hitta-till-oss Elin Magnusson will present her master’s thesis in mathematical statistics: An analysis of trends and source composition of Arctic lower tropospheric aerosols using Positive Matrix Factorization In this thesis we analyse over thirty years of continuous observations of 21 constituents in the aerosol and two gases of the lower Arctic troposphere at Alert, Canada on northern Ellesmere Island. Aerosols are defined as minute solid and/or liquid particles suspended in air. The analysis is an extension and expansion of the analysis in the report ”Arctic lower tropospheric aerosol trends and composition at Alert, Canada: 1980-1995 ” (Sirois and Barrie, 1999). The analysis is made in two parts, the first part is a time series analysis of the observed atmospheric concentrations between 1980 and 2013. The second is a multivariate analysis called Positive Matrix Factorization (PMF) to reduce the dimensionality of data by factorizing constituents/gases in sources. Relevant background information and theory are explained including a detailed description of PMF. The PMF analysis is made using the licensed program PMF2 while all other model and data handling is done using R. For the time series analysis, the complete data set as well as a subset of data for the winter (peak) season were analysed separately. Long term and seasonal trends have been described using cubic smoothing splines. Since Alert is situated above the polar circle, during a large part of the year it is in complete darkness until the polar sunrise occurs, this affect the compositions of the aerosol. Therefore, a new approach for the PMF analysis was made in contrast to Sirois and Barrie (1999). Two different factoriza- tions are made: one for the dark part of the pollution period and one for the light part of the pollution period. The two factorizations are made for 19 aerosol constituents and the gases: ozone and gas phase mercury, with data between 1995 and 2007. Some of the key results are: (i) a drastic drop of aerosol sulphate, acidity, ammonium and metals related to oil combustion in the mid 1990’s, most likely due to the collapse of the economy of the former Soviet Union, and (ii) the spring time correlation shown between O3 , Hg and Br related to photochemistry involving sea salt in snow after polar sunrise. Supervisors: Gudrun Brattström, Leonard Barrie From cecilia at misu.su.se Fri Dec 9 09:00:02 2016 From: cecilia at misu.su.se (=?iso-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Fri, 9 Dec 2016 08:00:02 +0000 Subject: [Bolincentret-at-su.se] =?iso-8859-1?q?Seminar_-_Dec_15_-_Sara_Br?= =?iso-8859-1?q?oom=E9?= Message-ID: <8dde202d327c428486735dd796e8e838@ebox-prod-srv07.win.su.se> SEMINAR Name Sara Broomé Department of Meteorology, Stockholm University, Sweden Title Northward propagation in the Nordic Seas from satellite altimetry Time and place Thursday 15 December 2016, 14.15 Room C609, Arrhenius Laboratory, 6th floor Welcome! ------------------------------------------- See all seminars: misu.su.se Subscribe to our YouTube Channel: MISU on YouTube Follow MISU on Facebook and Twitter -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From karin.jonsell at su.se Fri Dec 9 17:38:55 2016 From: karin.jonsell at su.se (Karin Jonsell) Date: Fri, 9 Dec 2016 17:38:55 +0100 Subject: [Bolincentret-at-su.se] Bolin Centre: Bolin Centre presentation to AGU and some good news Message-ID: Dear Bolin Centre Scientists, Presentation of the Bolin Centre: Please see the link for the presentation of the Bolin Centre to be run at the Bolin Centre Booth at AGU next week. I have made efforts to try to present the *whole* Bolin Centre and I hope that you like it! If you don’t, please send me pictures for me to include in future presentations. https://stockholmuniversity.box.com/s/xds14q6tfq582nph6is3cfkkfljon0z9 We have also some good news: Ilona Riipinten is now one of the worlds most cited scientists! This can be added to the list of recent achievements by Bolin Centre scientists with items such as Nature articles by eg. Örjan Gustafsson et al. and Sara Greenwood selected as a Wallenberg Academy Fellow. Stockholm University has also been ranked no 3 in a list of universities driving environmental awareness in the world. Feel proud, you have contributed to this! http://www.aces.su.se/ilona-riipinen-among-the-most-cited-researchers-in-the-world/ More news at www.bolin.su.se Have a nice weekend! Best regards, Karin Dr. Karin Jonsell Coordinator & Communicator Bolin Centre for Climate Research Stockholm University SE-106 91 Stockholm, Sweden Visiting address: Room S314, Geoscience Building at Frescati, Svante Arrhenius väg 8, Stockholm Phone: +46 (0)8 674 75 97 Mobile: +46 (0)70 206 2445 E-mail: karin.jonsell at su.se www.bolin.su.se The Bolin Centre for Climate Research is a collaboration between Stockholm University, KTH and the Swedish Meteorological and Hydrological Institute. -------------- next part -------------- An HTML attachment was scrubbed... URL: From cecilia at misu.su.se Mon Dec 12 22:24:00 2016 From: cecilia at misu.su.se (=?iso-8859-1?Q?Cecilia_Wessl=E9n?=) Date: Mon, 12 Dec 2016 21:24:00 +0000 Subject: [Bolincentret-at-su.se] Seminar today - Joakim Kjellsson Message-ID: SEMINAR Name Joakim Kjellsson Atmospheric, Oceanic and Planetary Physics Department of Physics University of Oxford Title Improving Ocean Modelling in the Eddy-Permitting Regime Time and place Tuesday 13 December 2016, 11.15 Rossbysalen C609, Arrhenius Laboratory, 6th floor Welcome! ------------------------------------------- See all seminars: misu.su.se Subscribe to our YouTube Channel: MISU on YouTube Follow MISU on Facebook and Twitter -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From nina.kirchner at natgeo.su.se Fri Dec 16 09:40:25 2016 From: nina.kirchner at natgeo.su.se (Nina Kirchner) Date: Fri, 16 Dec 2016 09:40:25 +0100 Subject: [Bolincentret-at-su.se] BOLIN SEMINAR SERIES: FIRST LECTURE JANUARY 10 (RA1) Message-ID: <96044ee2-bd98-fbde-50f3-d6e7183fcf43@natgeo.su.se> Dear BolinCentre members, please save the date: *Tuesday January 10, 2017, 13.00-14.00, Ahlmannsalen* to attend the FIRST LECTURE to be given in our new Bolin Seminar Series: *Maintenance of Baroclinicity and Storm Tracks in the North Atlantic* Speaker is Prof. Dr. Thomas Spengler, from the University of Bergen. The new Seminar Series aims to bring BolinCentre researchers together on a regular (monthly) basis, and to provide an opportunity to learn about current research topics in the individual Research Areas in a wider audience. With the new Seminar Series, we strive to make research carried out within the Bolin Centre more visible, to foster collaborations, both internally and externally, and to trigger lively discussions, for the benefit of the entire BolinCentre. Looking forward to seeing you there! Best wishes Nina and Rodrigo PS: We hope to be able to send out the complete Seminar Program for January-May 2017 soon. From nina.kirchner at natgeo.su.se Fri Dec 16 09:43:59 2016 From: nina.kirchner at natgeo.su.se (Nina Kirchner) Date: Fri, 16 Dec 2016 09:43:59 +0100 Subject: [Bolincentret-at-su.se] BOLIN CENTRE SEMINAR SERIES: Janaury 10, ABSTRACT Message-ID: <63bc8878-08ca-8b62-64f5-da269c253a42@natgeo.su.se> Dear all, here is the abstract to Prof. Spenglers talk on January 10: *Maintenance of Baroclinicity and Storm Tracks in the North Atlantic* The maintenance of baroclinicity along the mid- and high-latitude storm tracks is a matter of ongoing debate. Using an isentropic framework, a novel diagnostic based on the tendency equation for the slope of isentropic surfaces – a measure of the potential for baroclinic development – is presented. The tendency comprises contributions from dynamic processes, latent heat release, radiation, and sub-gridscale turbulence, which incorporates the effect of sensible heat fluxes. A climatology of these tendencies over the North Atlantic is compiled for the winters 2009 and 2010. It is found that adiabatic tilting flattens the isentropic surfaces, reflecting the action of growing baroclinic cyclones. This tendency is climatologically balanced by the generation of slope by diabatic processes. In the lower troposphere, the most intense diabatic increase of slope is found along the oceanic frontal zone associated with the Gulf Stream and at higher latitudes in the Labrador Sea, the Nordic Seas and the Barents Sea. Latent heat release and sensible heat fluxes both contribute substantially in these regions. A quantitative analysis of cold air outbreaks emphasises their important role for restoring the slope in the lower troposphere over the Gulf Stream region and off the sea-ice edge at high latitudes. In the upper troposphere, latent heat release due to cloud microphysical processes is the dominant mechanism maintaining the slope. From karin.jonsell at su.se Fri Dec 16 16:24:13 2016 From: karin.jonsell at su.se (Karin Jonsell) Date: Fri, 16 Dec 2016 16:24:13 +0100 Subject: [Bolincentret-at-su.se] Bolin Centre: Merry Christmas and a Happy New Year! Message-ID: <0F4CB2D9-3FF4-480B-A7AE-F755803541D3@su.se> Dear Bolin Centre Scientists, Merry Christmas and a Happy New Year! It has been a great year for the Bolin Centre with a lot of success for our scientists and the merger with EkoKlim as a highpoint. It is a great job I have, where I am able to work with such amazing scientists! However, science is under considerable pressure after Brexit (“We have had enough of experts”) and the election of Trump (“Climate change is a hoax”). Let the poem by Christina Schaffer cheer you up and further enlighten your desire to do great research and disseminate it so we can build a better world for coming generations. Dikt för mörka tider (Lucia 2016) Nu tändas åter tusen juleljus här står vi i kunskapens hus Från skärmar sprider tomtar och troll hat och rykten som tyvärr spelar roll I antropocens kalla Trumpna tid; en mental istid? Ett klimatavtal på glid? Nej, låt i år de juleljus som tänds, bli ett ljus i mörkret mot faktaresistens! /Christina Schaffer I would also like to share with you a picture from the Bolin Centre booth at AGU. It is a success once again! Best regards, Karin Dr. Karin Jonsell Coordinator & Communicator Bolin Centre for Climate Research Stockholm University SE-106 91 Stockholm, Sweden Visiting address: Room S314, Geoscience Building at Frescati, Svante Arrhenius väg 8, Stockholm Phone: +46 (0)8 674 75 97 Mobile: +46 (0)70 206 2445 E-mail: karin.jonsell at su.se www.bolin.su.se The Bolin Centre for Climate Research is a collaboration between Stockholm University, KTH and the Swedish Meteorological and Hydrological Institute. -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: AGU2016_DSC_0524.jpeg Type: image/jpeg Size: 451803 bytes Desc: not available URL: From nina.kirchner at natgeo.su.se Mon Dec 19 08:28:46 2016 From: nina.kirchner at natgeo.su.se (Nina Kirchner) Date: Mon, 19 Dec 2016 08:28:46 +0100 Subject: [Bolincentret-at-su.se] =?utf-8?q?Ugandas_glaci=C3=A4rer_/_Uganda?= =?utf-8?q?s_glaciers=3F?= Message-ID: <749314f4-4492-9c9e-d262-4bd4df035d83@natgeo.su.se> Dear all, is there anyone out there who knows about Ugandas glaciers in the Rwenzori mountains, or knows someone who knows? If yes, please contact me as soon as possible. Best wishes Nina From gustaf.hugelius at natgeo.su.se Tue Dec 20 13:38:02 2016 From: gustaf.hugelius at natgeo.su.se (Gustaf Hugelius) Date: Tue, 20 Dec 2016 12:38:02 +0000 Subject: [Bolincentret-at-su.se] Reminder: dissertation tommorow, Wednesday December 21st, 13:00 in DeGeersalen In-Reply-To: <1482237198637.17856@natgeo.su.se> References: <1482237198637.17856@natgeo.su.se> Message-ID: <1482237476644.91800@natgeo.su.se> ​​Dear Colleagues A reminder if you wish to attend the public defense of Matthias Siewert's doctoral thesis in Physical Geography entitled: "High-resolution mapping and spatial variability of soil organic carbon storage in permafrost environments". If you are interested in permafrost environments, soils or high-resolution spatial analyses you will find this relevant. Please find the thesis abstract at the bottom of this email. The defense starts at 13:00, Wednesday, December 21st in DeGeersalen (Geohuset, Frescati). Afterwards the result will be announced accompanied with coffee/tea and cake in the lunchroom on the fourth floor (usually starting ca. 15-15:30). The Faculty opponent is Dr. Iain Hartley (College of Life and Environmental Sciences, University of Exeter) and the committee members are Prof. Eva-Maria Pfeiffer (Department of Eart Sciences, University of Hamburg), Dr. Johan Stendahl (Department of Soil and Environment, Swedish University of Agricultural Sciences), Dr. Isabelle Gärtner-Roer (Department of Geography, University of Zurich) and Dr. Ian Brown (Department of Physical Geography, Stockholm University; reserve member). Prof. Gunhild Rosqvist will chair the dissertation. Supervisors have been myself and Prof. Peter Kuhry. I hope to see many of you there! Sincerely, Gustaf Thesis abstract Large amounts of carbon are stored in soils of the northern circumpolar permafrost region. High-resolution mapping of this soil organic carbon (SOC) is important to better understand and predict local to global scale carbon dynamics. In this thesis, studies from five different areas across the permafrost region indicate a pattern of generally higher SOC storage in Arctic tundra soils compared to forested sub-Arctic or Boreal taiga soils. However, much of the SOC stored in the top meter of tundra soils is permanently frozen, while the annually thawing active layer is deeper in taiga soils and more SOC may be available for turnover to ecosystem processes. The results show that significantly more carbon is stored in soils compared to vegetation, even in fully forested taiga ecosystems. This indicates that over longer timescales, the SOC potentially released from thawing permafrost cannot be offset by a greening of the Arctic. For all study areas, the SOC distribution is strongly influenced by the geomorphology, i.e. periglacial landforms and processes, at different spatial scales. These span from the cryoturbation of soil horizons, to the formation of palsas, peat plateaus and different generations of ice-wedges, to thermokarst creating kilometer scale macro environments. In study areas that have not been affected by Pleistocene glaciation, SOC distribution is highly influenced by the occurrence of ice-rich and relief-forming Yedoma deposits. This thesis investigates the use of thematic maps from highly resolved satellite imagery (<6.5 m resolution). These reveal important information on the local distribution and variability of SOC, but their creation requires advanced classification methods including an object-based approach, modern classifiers and data-fusion. The results of statistical analyses show a clear link of land cover and geomorphology with SOC storage. Peat-formation and cryoturbation are identified as two major mechanisms to accumulate SOC. As an alternative to thematic maps, this thesis demonstrates the advantages of digital soil mapping of SOC in permafrost areas using machine-learning methods, such as support vector machines, artificial neural networks and random forests. Overall, high-resolution satellite imagery and robust spatial prediction methods allow detailed maps of SOC. This thesis significantly increases the amount of soil pedons available for the individual study areas. Yet, this information is still the limiting factor to better understand the SOC distribution in permafrost environments at local and circumpolar scale. Soil pedon information for SOC quantification should at least distinguish the surface organic layer, the mineral subsoil in the active layer compared to the permafrost and further into organic rich cryoturbated and buried soil horizons. ​ ​---------- Gustaf Hugelius Senior Lecturer Department of Physical Geography Stockholm University Visiting Scholar Department of Earth System Science Stanford University -------------- next part -------------- An HTML attachment was scrubbed... URL: From Radovan.Krejci at aces.su.se Wed Dec 21 15:00:15 2016 From: Radovan.Krejci at aces.su.se (Radovan Krejci) Date: Wed, 21 Dec 2016 14:00:15 +0000 Subject: [Bolincentret-at-su.se] ACES seminar 11 January 2017 10:30 Ahlmannsalen, Mark Thiemens "Sources and dynamics of atmospheric gases and aerosols: insights from isotopes" Message-ID: <3bd54a9ac2264c95ac42c796d92492ee@ITMS04.ad.itm.su.se> Dear all, Welcome to additional ACES seminar shortly after we are all back from Christmas holidays. We will have a pleasure to welcome Mark Thiemens from UCSD. He is a world-leader in developing and applying advanced isotope systems in atmospheric chemistry and cosmochemistry. He is also the discoverer of mass-independent isotope fractionation in the atmosphere with large breakthrough for ozone chemistry. Please not UNUSUAL DATE (WEDNESDAY) AND TIME (10:30) Webcast: https://connect.sunet.se/bgcatm/ Lectures archive: http://vimeo.com/bgcatm/videos/ Register for seminar announcements: registration [cid:image001.jpg at 01D25B9A.EF76D7C0] ------------------------------------------------------------------------------------------------ Radovan KREJCI Department of Environmental Science and Analytical Chemistry (ACES) Atmospheric Science Unit S 106 91 Stockholm Sweden Tel: +46 8 6747224 Cell phone: + 46 706 341511 Fax: +46 8 6747325 E-mail: Radovan.Krejci at aces.su.se www.aces.su.se ------------------------------------------------------------------------------------------------ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 106847 bytes Desc: image001.jpg URL: From Radovan.Krejci at aces.su.se Wed Dec 21 15:01:53 2016 From: Radovan.Krejci at aces.su.se (Radovan Krejci) Date: Wed, 21 Dec 2016 14:01:53 +0000 Subject: [Bolincentret-at-su.se] ACES seminar, 2 February 2017 13:00 Ahlmannsalen, Sergey Nizkorodov Message-ID: <798f4b1654174aee8a3c9dcccff1059e@ITMS04.ad.itm.su.se> Dear all, Welcome to ACES seminar on organic aerosol ageing processes. Webcast: https://connect.sunet.se/bgcatm/ Lectures archive: http://vimeo.com/bgcatm/videos/ Register for seminar announcements: registration [cid:image001.jpg at 01D25B9B.29870A20] ------------------------------------------------------------------------------------------------ Radovan KREJCI Department of Environmental Science and Analytical Chemistry (ACES) Atmospheric Science Unit S 106 91 Stockholm Sweden Tel: +46 8 6747224 Cell phone: + 46 706 341511 Fax: +46 8 6747325 E-mail: Radovan.Krejci at aces.su.se www.aces.su.se ------------------------------------------------------------------------------------------------ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 176262 bytes Desc: image001.jpg URL: From Radovan.Krejci at aces.su.se Wed Dec 21 15:03:03 2016 From: Radovan.Krejci at aces.su.se (Radovan Krejci) Date: Wed, 21 Dec 2016 14:03:03 +0000 Subject: [Bolincentret-at-su.se] ACES seminar 19 January 13:00 Ahlmannsalen Message-ID: Dear all, Welcome to seminar about planetary boundaries where we will welcome speaker Sarah Cornell from Stockholm Resilience Centre. Webcast: https://connect.sunet.se/bgcatm/ Lectures archive: http://vimeo.com/bgcatm/videos/ Register for seminar announcements: registration [cid:image001.jpg at 01D25B9B.533EF8A0] ------------------------------------------------------------------------------------------------ Radovan KREJCI Department of Environmental Science and Analytical Chemistry (ACES) Atmospheric Science Unit S 106 91 Stockholm Sweden Tel: +46 8 6747224 Cell phone: + 46 706 341511 Fax: +46 8 6747325 E-mail: Radovan.Krejci at aces.su.se www.aces.su.se ------------------------------------------------------------------------------------------------ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 210156 bytes Desc: image001.jpg URL: From Radovan.Krejci at aces.su.se Wed Dec 21 15:07:06 2016 From: Radovan.Krejci at aces.su.se (Radovan Krejci) Date: Wed, 21 Dec 2016 14:07:06 +0000 Subject: [Bolincentret-at-su.se] ACES seminar 12 January 2017 13:00 Ahlmannsalen, Wendy Broadgate "Future Earth: Research for sustainability in the Anthropocene" Message-ID: <71a954dd7a794bd0940f1a8e7423457c@ITMS04.ad.itm.su.se> Dear all, Welcome to ACES seminar about Anthropocene Webcast: https://connect.sunet.se/bgcatm/ Lectures archive: http://vimeo.com/bgcatm/videos/ Register for seminar announcements: registration [cid:image001.jpg at 01D25B9B.E3FCCDE0] ------------------------------------------------------------------------------------------------ Radovan KREJCI Department of Environmental Science and Analytical Chemistry (ACES) Atmospheric Science Unit S 106 91 Stockholm Sweden Tel: +46 8 6747224 Cell phone: + 46 706 341511 Fax: +46 8 6747325 E-mail: Radovan.Krejci at aces.su.se www.aces.su.se ------------------------------------------------------------------------------------------------ -------------- next part -------------- An HTML attachment was scrubbed... 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