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In situ

Terrestrial Observation Panel on Climate (GCOS-GTOS) In situ issues WOAP-4 Hamburg March 2010 Han Dolman Chair of TOPC VU University Amsterdam. In situ. provide a comprehensive observation basis regarding the land surface

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In situ

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  1. Terrestrial Observation Panel on Climate(GCOS-GTOS)In situ issuesWOAP-4 Hamburg March 2010Han DolmanChair of TOPCVU University Amsterdam

  2. In situ • provide a comprehensive observation basis regarding the land surface • deliver long-term datasets to monitor trends and detect environmental changes in key terrestrial variables; • provide crucial verifiable data for calibration and validation of satellite products; • provide data to be integrated or assimilated within forecasting or analysis models; • Provide regionalized and local data for use in downstream services. • But, often run in research mode, no sustained funding, limited data access • Data are being collected for non-climate purpose and have economic value (water, wood)

  3. GTN-R There is concern at the lack of progress in GTN-H to get more river discharge stations on board

  4. GTN-Permafrost, Glaciers do well Largely because there is  dedicated institute (CALM). Aletsch use of Aster/GIS Data WGMC

  5. EU: GMES Recommendations for In situ • The GMES global land group proposes to select a number of networks for participation in a fast track in situ effort. • Maturity of the network (state of harmonization/standardization, availability protocols, data quality control and data access) • Relevance to global networks (e.g. the network forms part of a global network, e.g. GTN-G, GTN-H, FLUXNET, etc) • Critical to understanding of changes in System Earth (GTN-P, LifeWatch, ICOS) • Critical to providing local scale data and calibration/validation data for the space component of Global Land services • Initially concentrate on coordination support activities

  6. While we have a number of satellite ECV products, like albedo, Fapar etc., their validation is generally poor • We need to find a  mechanism to get our set of 35 global reference sites (linked with Fluxnet) and CEOS Cal-Val, similar to GRUAN

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