Author: climat25

This author has written 636 articles

Agenda

Tuesday, 11 February 2014          Time Agenda Item 9:00-9:30 Registration 9:30-11:00 Welcome Session Chairs: DUE Permafrost -Birgit Heim and Frank…

Continue ReadingAgenda

About

The workshop:

User workshops are an important tool for the interaction between the scientific user’s community and the remote sensing experts. The DUE Permafrost team and ESA held three workshops (2010 to 2012). ESA, CliC and IPA are funding the 4th DUE Permafrost User Workshop. This ESA-CliC-GTNP-/IPA-DUE Permafrost workshop

  • will bring together a multidisciplinary community working on permafrost-related remote sensing, field monitoring and permafrost-related modelling and climate modeling.
  • will collect and discuss the up-to-date User requirements related to monitoring and modelling.
  • will contribute to the update of the IGOS Cryosphere Theme Report (2007) for permafrost.
  • will feed into current efforts of GTN-P to build a permafrost observing component into the Sustaining Arctic Observing Network (SAON).

Workshop Organisation:

The 4th workshop will be jointly organized by members of the former DUE permafrost team, Birgit Heim (AWI, DE), Annett Bartsch (APRI,AT & LMU, DE), Claude Duguay (UW, CA) and Frank-Martin Seifert (ESA), further co-organizers are Jenny Baseman (CliC) and Vladimir Romanovsky (IPA/GTN-P). The CliC-ESA-DUE Permafrost workshop will start with a welcome by CliC, ESA, IPA, GTN-P and GTN-P-CALM. We will show the developments related to the DUE permafrost products, and added-value applications. Presentations will also include related international remote sensing programs such as ESA GlobSnow, STSE Northern Hydrology, STSE-Alanis, EuRuCAS, FP7-PAGE21 and FP7-MONARCH-A. Most important - the workshop will have in-depth discussions how to further link remote sensing, field observations and modelling. Based on these in-depth sessions an interdisciplinary document on building up strategies and showing case studies will be produced and circulated. The workshop will also feed into current efforts of the Global Terrestrial Network of Permafrost (GTN-P) to build a permafrost observing component into the Sustaining Arctic Observing Network (SAON).

Background:

Permafrost is one of the Essential Climate Variables (ECVs) in the Global Climate Observing System (GCOS). Field observations proof that the active layer and permafrost are already undergoing changes with further influences on the hydrology, the carbon budget, the denudation of permafrost landscapes and the human infrastructure. A thorough mapping, observation and understanding of the climate-driven surface dynamics at work in permafrost landscapes are needed.

Remote Sensing provides detailed spatio-temporal representation of geo- and biophysical parameters. Interdisciplinary platforms are needed to get an understanding of the discipline-specific terminology, data types, usage of data, accuracy of remote sensing products and their added value for permafrost monitoring and modelling.

The following questions need to be further discussed:

1.         How valid are the operational remote sensing products for permafrost landscapes?

2.         What methods are available for upscaling from ground data?

3.         Can Remote Sensing become operational for permafrost monitoring?

4.         Can satellite-observable parameters provide the evaluation, constraining and forcing for models?

ESA DUE Permafrost (2009 to 2012) has established a permafrost-related monitoring system based on a first set of circumpolar and regional products: Land Surface Temperature (LST), Surface Soil Moisture (SSM), ground frozen/ non frozen state, terrain parameters, Land Cover, and surface waters. The user community comprises institutions, organizations and scientists from a wide range of subjects and interests. The user requirements had been taken into consideration for the definition of the service cases and the observation strategy. The remote sensing products are disseminated through the web portal of the TU Vienna (ipf.tuwien.ac.at/permafrost/) and through the PANGAEA publication database (pangaea.de), which provides the DOI reference for the DUE Permafrost remote sensing products.

 

Continue ReadingAbout

Update from the Permafrost Carbon Network

- a CliC endorsed and supported effort

The Permafrost Carbon Research Coordination Network (RCN) will be convening a session at the upcoming fall American Geophysical Union meeting (AGU). The session, B071. Vulnerability o Permafrost Carbon to Climate Change, has received 53 abstracts and has been allocated three oral time slots.  The annual meeting of the network will also be taking place in conjunction with AGU, and is being held at the Intercontenental Hotel on 8 December in San Francisco.  For more information on the meeting and other recent developments, please visit their website: http://www.permafrostcarbon.org/

Recent publications from the Research Carbon Network:

Continue ReadingUpdate from the Permafrost Carbon Network

CliC Sea Ice Modeling and Observing Workshop Report Available

- Contributed by Penny Wagner

The sea ice covers of the polar oceans are a critical element of the global system. With support from the Research Council of Norway, CliC, the International Arctic Science Committee (IASC) and the Scientific Committee on Antarctic Research (SCAR), 48 researchers from 13 countries, including 10 early career scientists, met from June 5-7, 2013 in Tromso, Norway to discuss the next steps in better integrating sea ice observations and modeling. The group included field experimentalists, remote sensing specialists, and sea ice and climate modelers. The workshop featured overview presentations on sea ice observations, models, remote sensing, and data archiving plus ample time for group discussions. Five 7-9 person teams consisting of scientists from a mixture of areas of expertise were assembled to develop a list of key gaps of knowledge within sea ice observations and models. Targeted activities that could close some of these gaps were proposed with separate short (6 months to a year), medium (1-2 years), and long (3 years or more) term goals.  A common theme from these projects was the need for standardization of sea ice observation data from the Arctic, developing and implementing a standardized, computerized ship-based ice observation protocols and creating an online center for summarizing ongoing field activities. The combination of ASPeCt and IceWatch efforts will help create an ongoing inventory of sea ice and sea ice related datasets for both Arctic and Antarctic. Download the report.

Continue ReadingCliC Sea Ice Modeling and Observing Workshop Report Available