From helen.dahlke at natgeo.su.se Wed Aug 15 09:26:18 2012 From: helen.dahlke at natgeo.su.se (Helen Dahlke) Date: Wed, 15 Aug 2012 07:26:18 +0000 Subject: [Bolincentret-at-su.se] BBCC course in snow physics - registration reminder Message-ID: <02F5DEACB4BB6B449B3E3F955AB6DC81693972@ebox-prod-srv04.win.su.se> Dear All We would like to remind you of the following course offering of a BBCC course in snow physics. The course is entitled Introduction to the physics and energy balance of snow and will be taught by Dr. Hendrik Huwald (Environmental Fluid mechanics and Hydrology, EPFL, Lausanne, Switzerland) and Dr. Mathias Bavay ( WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland). The course takes place 10-15 September 2012 (full time, detailed schedule and outline in the attached document) in room U32 at Stockholm University and might be of interest to some of you. The registration deadline for this course is 31 August 2012. Please register as soon as possible if you want to participate in this course. The course will cover the following topics: ? Physical properties of snow ? Snow formation and deposition ? Energy balance of snow ? Use of field measured weather parameters in energy balance calculations ? Metamorphisms of snow ? Stable water isotopes in snow and snowmelt ? Introduction into measurement techniques of snow ? Data quality and sources of uncertainty in field measurements ? Topography and vegetation effects on snow ? Mechanical redistribution ? Introduction into the SNOWPACK and ALPINE3D model Please distribute and repost as necessary! Participants can register with me (helen.dahlke at natgeo.su.se) or Nikki Vercauteren (nikki.vercauteren at natgeo.su.se). Please let us know if you have any questions. Best regards, -------------- next part -------------- An HTML attachment was scrubbed... URL: From margareta.kesselberg at natgeo.su.se Thu Aug 16 14:31:27 2012 From: margareta.kesselberg at natgeo.su.se (Margareta Kesselberg) Date: Thu, 16 Aug 2012 12:31:27 +0000 Subject: [Bolincentret-at-su.se] =?utf-8?q?VB=3A_Many_of_the_world=C2=B4s_?= =?utf-8?q?foremost_experts_are_coming_to_Bergen_in_September?= In-Reply-To: <3b8b2fb6e1dd17378c7587f5a80dd0cc668.20120816090536@mail52.us1.mcsv.net> References: <3b8b2fb6e1dd17378c7587f5a80dd0cc668.20120816090536@mail52.us1.mcsv.net> Message-ID: f.k./Margareta Fr?n: The Bjerknes Centre for Climate Research [mailto:conference.bccr=uni.no at mail52.us1.mcsv.net] F?r The Bjerknes Centre for Climate Research Skickat: den 16 augusti 2012 11:06 Till: Margareta Kesselberg ?mne: Many of the world?s foremost experts are coming to Bergen in September The Bjerknes Centre 10 Years Anniversary Conference: CLIMATE CHANGE IN HIGH LATITUDES Email not displaying correctly? View it in your browser. Come to Bergen for the latest research results on climate change in high latitudes [Beskrivning: Bild som tagits bort av avs?ndaren.] Dear Colleague Welcome to three exciting days which will give you the latest updated research results on climate change in high latitudes, in Bergen, September 3-6, 2012 There will be presentations of up-to-date research results from many of the world?s foremost experts. 50 oral presentations and 170 poster presentations are accepted in the programme, presenting the newest syntheses and insight - covering climate variability, climate projections, insight from past climate change and carbon-cycle and ecosystem couplings and interactions. Please check out our programme and the poster session overview. We will have three social events to meet existing and new colleagues in Bergen with its historical city centre. On Tuesday evening, September 4, The City of Bergen invites us all to a conference reception at the medieval (13th century) stone hall H?konshallen. We also offer an optional excursion to Finse and the glacier Hardangerj?kulen on Friday September 7, guided by professor Atle Nesje. Please sign up when registering for the conference. Welcome to Bergen in September! Professor Eystein Jansen Director Bjerknes Centre for Climate Research Conference Sessions: SESSION 1: Climate variability, sensitivity, thresholds and predictability SESSION 2: Coupling between climate and biogeochemical cycles SESSION 3: Ocean, ice, atmosphere, land surface processe SESSION 4: Climate projections and ecosystem responses To all of you who are accepted for the poster session, please see the guidelines for poster size at our web page. Have you read this far and haven't signed up yet? You can do it online here [Beskrivning: Bild som tagits bort av avs?ndaren.] | forward to a friend PLEASE FORWARD THIS E-MAIL TO YOUR NETWORK Copyright ? 2012 Conference Secreteriat/ The Bjerknes Centre for Climate Research, All rights reserved. You are recommended to receive this email from a colleague at the Bjerknes Centre for Climate Research. Our mailing address is: Conference Secreteriat/ The Bjerknes Centre for Climate Research All?gaten 55 postboks 7810 Bergen, 12 5007 Norway Add us to your address book [Beskrivning: Bild som tagits bort av avs?ndaren. Email Marketing Powered by MailChimp] unsubscribe from this list | update subscription preferences -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: ~WRD000.jpg Type: image/jpeg Size: 823 bytes Desc: ~WRD000.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 418 bytes Desc: image001.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image002.jpg Type: image/jpeg Size: 403 bytes Desc: image002.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image003.jpg Type: image/jpeg Size: 332 bytes Desc: image003.jpg URL: From helen.dahlke at natgeo.su.se Thu Aug 16 15:20:44 2012 From: helen.dahlke at natgeo.su.se (Helen Dahlke) Date: Thu, 16 Aug 2012 13:20:44 +0000 Subject: [Bolincentret-at-su.se] BBCC course in snow physics - registration reminder In-Reply-To: <02F5DEACB4BB6B449B3E3F955AB6DC81693972@ebox-prod-srv04.win.su.se> References: <02F5DEACB4BB6B449B3E3F955AB6DC81693972@ebox-prod-srv04.win.su.se> Message-ID: <02F5DEACB4BB6B449B3E3F955AB6DC81694D37@ebox-prod-srv04.win.su.se> Dear all, it seems the attachment got lost while sending the email. My apologies for that. Please see the attached file with more detailed information regarding the snow course. Thanks, Helen Dahlke ________________________________ From: Helen Dahlke Sent: Wednesday, August 15, 2012 9:26 AM To: bolincentret at su.se; ink.sendlist at natgeo.su.se; ac at geo.su.se; phd at geo.su.se; ta at geo.su.se; misu at misu.su.se; research-school at stockholmresilience.su.se; itmall at itm.su.se Subject: BBCC course in snow physics - registration reminder Dear All We would like to remind you of the following course offering of a BBCC course in snow physics. The course is entitled Introduction to the physics and energy balance of snow and will be taught by Dr. Hendrik Huwald (Environmental Fluid mechanics and Hydrology, EPFL, Lausanne, Switzerland) and Dr. Mathias Bavay ( WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland). The course takes place 10-15 September 2012 (full time, detailed schedule and outline in the attached document) in room U32 at Stockholm University and might be of interest to some of you. The registration deadline for this course is 31 August 2012. Please register as soon as possible if you want to participate in this course. The course will cover the following topics: ? Physical properties of snow ? Snow formation and deposition ? Energy balance of snow ? Use of field measured weather parameters in energy balance calculations ? Metamorphisms of snow ? Stable water isotopes in snow and snowmelt ? Introduction into measurement techniques of snow ? Data quality and sources of uncertainty in field measurements ? Topography and vegetation effects on snow ? Mechanical redistribution ? Introduction into the SNOWPACK and ALPINE3D model Please distribute and repost as necessary! Participants can register with me (helen.dahlke at natgeo.su.se) or Nikki Vercauteren (nikki.vercauteren at natgeo.su.se). Please let us know if you have any questions. Best regards, -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: BBCC PhD course in physics and energy balance of snow Fall 2012.pdf Type: application/pdf Size: 87257 bytes Desc: BBCC PhD course in physics and energy balance of snow Fall 2012.pdf URL: From georgia.destouni at natgeo.su.se Sun Aug 19 22:44:39 2012 From: georgia.destouni at natgeo.su.se (Gia Destouni) Date: Sun, 19 Aug 2012 22:44:39 +0200 Subject: [Bolincentret-at-su.se] Seminar, September 3, 13:15 Message-ID: <06483D1B-1DAE-41B2-93AB-65600B149385@natgeo.su.se> Welcome to seminar: - Monday September 3, at 13:15, Seminar Room T40 (next to INK coffee room), Geosciences building Seasonal streamflow prediction by a combined climate-hydrologic system for river basins of Taiwan and Zambia, Africa By Thian Gan, University of Alberta, Edmonton, Canada ------------------------------- ABSTRACT A combined, climate-hydrologic system with three components to predict the streamflow of two river basins of Taiwan at one season (3-month) lead time for the NDJ and JFM seasons was developed. The first component consists of the wavelet-based, ANN?GA model (Artificial Neural Network calibrated by Genetic Algorithm) which predicts the seasonal rainfall by using selected sea surface temperature (SST) as predictors, given that SST are generally predictable by climate models up to 6-month lead time. For the second component, three disaggregation models, Valencia and Schaake (VS), Lane, and Canonical Random Cascade Model (CRCM), were tested to compare the accuracy of seasonal rainfall disaggregated by these three models to 3-day time scale rainfall data. The third component consists of the continuous rainfall?runoff model modified from HBV (called the MHBV) and calibrated by a global optimization algorithm against the observed rainfall and streamflow data of the Shihmen and sengwen river basins of Taiwan. The proposed system was tested, first by disaggregating the predicted seasonal rainfall of ANN?GA to rainfall of 3-day time step using the Lane model; then the disaggregated rainfall data was used to drive the calibrated MHBV to predict the streamflow for both river basins at 3-day time step up to a season?s lead time. Overall, the streamflow predicted by this combined system for the NDJ season, which is better than that of the JFM season, will be useful for the seasonal planning and management of water resources of these two river basins of Taiwan. Similarly, the April?June (AMJ) SST of the Atlantic Ocean was used to drive the ANN-GA model to predict the annual rainfall of two stations in the upper Kafue River Basin and in the Lunga River Basin of Zambia. The predicted annual rainfall at the two stations was disaggregated to weekly totals and then used to simulate the runoff of the upper Kafue and Lunga Rivers. In the upper Kafue basin, runoff from the disaggregated weekly rainfall explained 81% of the runoff variance, compared to 88% when historical weekly rainfall data was used. For the Lunga River, 72% of the observed runoff variance was accounted for, compared to 81% when historical weekly rainfall was used. This scheme demonstrates that if a region is dominated by hydro-climatic processes whose statistics are fairly stationary, it will be possible to use disaggregated rainfall from annual rainfall predicted by a teleconnection model to predict reliable weekly basin runoff up to a year?s lead time. ----------------------------- Welcome! Gia -- Georgia Destouni Professor of Hydrology, Hydrogeology and Water Resources Department of Physical Geography& 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: From margareta.kesselberg at natgeo.su.se Thu Aug 30 09:01:22 2012 From: margareta.kesselberg at natgeo.su.se (Margareta Kesselberg) Date: Thu, 30 Aug 2012 07:01:22 +0000 Subject: [Bolincentret-at-su.se] New participants "Science Communication Initiative" at the Bolin Centre Message-ID: New participants If you want to join the "Science Communication Initiative? seminars at the Bolin Centre. Please send a notification to margareta.kesselberg at natgeo.su.se Autumn's first meeting is on September 4, at 15-17, House T, plan 4, room T40 Best Regards Margareta ________________________________________________ Margareta Kesselberg Bert Bolin Centre for Climate Research (www.bbcc.su.se) Department of Physical Geography and Quaternary Geology Stockholm University SE-106 91 Stockholm, Sweden Administration and Communication margareta.kesselberg at natgeo.su.se Phone: +46 (0) 8 164891 Mobile: 070-7300873 -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: From georgia.destouni at natgeo.su.se Thu Aug 30 10:12:09 2012 From: georgia.destouni at natgeo.su.se (Gia Destouni) Date: Thu, 30 Aug 2012 10:12:09 +0200 Subject: [Bolincentret-at-su.se] Reminder: Seminar Monday September 3, at 13:15 Message-ID: <0BDDE8EE-21BD-45AA-AF8E-47E7692C670F@natgeo.su.se> Reminder Welcome to seminar: - Monday September 3, at 13:15, Seminar Room T40 (next to INK coffee room), Geosciences building Seasonal streamflow prediction by a combined climate-hydrologic system for river basins of Taiwan and Zambia, Africa By Thian Gan, University of Alberta, Edmonton, Canada ------------------------------- ABSTRACT A combined, climate-hydrologic system with three components to predict the streamflow of two river basins of Taiwan at one season (3-month) lead time for the NDJ and JFM seasons was developed. The first component consists of the wavelet-based, ANN?GA model (Artificial Neural Network calibrated by Genetic Algorithm) which predicts the seasonal rainfall by using selected sea surface temperature (SST) as predictors, given that SST are generally predictable by climate models up to 6-month lead time. For the second component, three disaggregation models, Valencia and Schaake (VS), Lane, and Canonical Random Cascade Model (CRCM), were tested to compare the accuracy of seasonal rainfall disaggregated by these three models to 3-day time scale rainfall data. The third component consists of the continuous rainfall?runoff model modified from HBV (called the MHBV) and calibrated by a global optimization algorithm against the observed rainfall and streamflow data of the Shihmen and sengwen river basins of Taiwan. The proposed system was tested, first by disaggregating the predicted seasonal rainfall of ANN?GA to rainfall of 3-day time step using the Lane model; then the disaggregated rainfall data was used to drive the calibrated MHBV to predict the streamflow for both river basins at 3-day time step up to a season?s lead time. Overall, the streamflow predicted by this combined system for the NDJ season, which is better than that of the JFM season, will be useful for the seasonal planning and management of water resources of these two river basins of Taiwan. Similarly, the April?June (AMJ) SST of the Atlantic Ocean was used to drive the ANN-GA model to predict the annual rainfall of two stations in the upper Kafue River Basin and in the Lunga River Basin of Zambia. The predicted annual rainfall at the two stations was disaggregated to weekly totals and then used to simulate the runoff of the upper Kafue and Lunga Rivers. In the upper Kafue basin, runoff from the disaggregated weekly rainfall explained 81% of the runoff variance, compared to 88% when historical weekly rainfall data was used. For the Lunga River, 72% of the observed runoff variance was accounted for, compared to 81% when historical weekly rainfall was used. This scheme demonstrates that if a region is dominated by hydro-climatic processes whose statistics are fairly stationary, it will be possible to use disaggregated rainfall from annual rainfall predicted by a teleconnection model to predict reliable weekly basin runoff up to a year?s lead time. ----------------------------- Welcome! Gia -- Georgia Destouni Professor of Hydrology, Hydrogeology and Water Resources Department of Physical Geography& 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: From margareta.kesselberg at natgeo.su.se Thu Aug 30 11:21:22 2012 From: margareta.kesselberg at natgeo.su.se (Margareta Kesselberg) Date: Thu, 30 Aug 2012 09:21:22 +0000 Subject: [Bolincentret-at-su.se] Science Communication- update Message-ID: For your information and update Attach the first invitation from the ?Science Communication Initiative? where you also can read about the purpose of the seminars. Best Regards Margareta ________________________________________________ Margareta Kesselberg Bert Bolin Centre for Climate Research (www.bbcc.su.se) Department of Physical Geography and Quaternary Geology Stockholm University SE-106 91 Stockholm, Sweden Administration and Communication margareta.kesselberg at natgeo.su.se Phone: +46 (0) 8 164891 Mobile: 070-7300873 -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Pilot project for internal outreach-MK.pdf Type: application/pdf Size: 96206 bytes Desc: Pilot project for internal outreach-MK.pdf URL: From margareta.kesselberg at natgeo.su.se Thu Aug 30 11:50:57 2012 From: margareta.kesselberg at natgeo.su.se (Margareta Kesselberg) Date: Thu, 30 Aug 2012 09:50:57 +0000 Subject: [Bolincentret-at-su.se] The Bolin Centre - New Articles in Nature Geoscience Message-ID: For your information New articles from the Bolin Centre http://www.bbcc.su.se/index.php/two-bolin-center-studies-published-in-nature-journals ________________________________________________ Margareta Kesselberg Bert Bolin Centre for Climate Research (www.bbcc.su.se) Department of Physical Geography and Quaternary Geology Stockholm University SE-106 91 Stockholm, Sweden Administration and Communication margareta.kesselberg at natgeo.su.se Phone: +46 (0) 8 164891 Mobile: 070-7300873 -------------- next part -------------- En HTML-bilaga skiljdes ut... URL: