The Cryosphere CCI s. Glaciers CCI Greenland Ice Sheet CCI Antarctica Ice Sheet CCI Sea Ice CCI 2012-
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1 The Cryosphere CCI s. Glaciers CCI Greenland Ice Sheet CCI Antarctica Ice Sheet CCI Sea Ice CCI 2012-
2 Ilulissat Climate Days 2015 International workshops on Changes of the Greenland Cryosphere Ice Sheets CCI meeting Ilulissat, Greenland, June 2-5, Ilulissat / Jakobshavn CryoSat dh/dt
3 Greenland Ice Sheet CCI Phase ECV s Cryosat dh/dt
4 Greenland Ice Sheet Surface Elevation Change (SEC) Rerun ERS/Envisat + CryoSat + AltiKa + S-3 Ice Velocity (IV) Greenland-wide: Sentinel-1, RadarSat, ALOS2? - Time series on 9 glaciers: S-1, optical (IMGRAFT +) Calving Front Locations (CFL) continue time series, S-1, S-2 optical Grounding Line Location (GLL) continue time series, S-1 Gravimetry Mass Balance (GMB) grid and basin dm/dt products ?
5 Ice Velocity: Time series and repeated coverage of Greenland
6 Antarctica CCI ECVs: - Elevation changes - Ice velocity - Grounding lines - Mass balance from GRACE Building on Greenland CCI: - Updated documents DARD, URD, ATBD.. - New user questionaire more than 150 respondents.. Number of responders AIS_cci Survey Responses Level of survey
7 Antarctica ECV: Grounding lines Grounding Line Product Format EO Input Data Shapefile E1, E2, EV, R1, TSX, S1 Temporal Range 1992 Temporal Frequency decadal Spatial Coverage 5-10 key ice streams Spatial Resolution 250m line
8 CCI Greenland Antarctica links Common Climate Research Group Lead: Prof. David Vaugn, BAS CRG members with expertise on Greenland: Prof. Jon-Ove Hagen (University of Oslo, Norway), Dr. Gudfinna Adalgeirsdottir (University of Iceland) Dr. Andreas Ahlstrom (GEUS) CRG members with primary expertise on Antarctica: Prof. Michiel van den Broeke (University of Utrecht), Dr. Hartmut Hellmer (Alfred Wegner Institute) Prof. Anne le Broq (University of Exeter) Co-located project meetings: ~ 1/year Common ECVs: SEC, GMB, IV, GFL Common Round-Robin for GMB
9 Sea ice CCI - SIC Ice concentration in % Uncertainty in % 3 4% AMSR-E 25 km EASE grid > 50 % SIC, % uncertainty, % Uncertainty = tiepoint + smearing + daily variability with a grid cell % SIC, % uncertainty, %
10 Sea ice CCI - SIT Sea Ice Thickness ECV to be released shortly.. Example of monthly product ENVISAT SIT November 2003 March 2004
11 Sea ice CCI SIT Antarctica Non-gridded freeboard from CryoSat-2 August 2011 Provided by Sandra Schwegmann, AWI Non-gridded freeboard from ENVISAT August 2011
12 Glaciers CCI 3 ECVs: Glacier outlines, Ice velocity, Elevation changes + ice thickness option
13 Current applications: RGI Glaciers CCI: Randolph inventory Number, area, volume and SLE Potential sea level contribution: 42 cm IPCC (2013) Huss and Farinotti (2012)
14 Glaciers CCI: Application mass loss of Himalayan / Tibetan glaciers
15 Inter-ECV cooperation.. - Sea level closure (Greenland, Antarctica, Glaciers, Sea Level, Sea Ice CCI) - GRACE / altimetry option merged high-resolution mass loss? - Optical IV mapping (large-scale, more focus on non-esa data)? - Area overlaps (Greenland and Antarctica Peninsula glaciers..) Greenland melt SLR Antarctica SLR
16 Applications and users CCI Glaciers Main applications Glaciologists, hydrologists, general public Secondary Current users / metrics Common issues Climate Models, <300 RGI hydrology downloads; 25+ models papers, >600 citations of appl. Overlap to ice sheet margin glaciers EO data access Greenland Ice Stakeholders Sheet 2012(sealevel rise) Natl. monitoring programs / public Climate modellers long term predictions Availability EO data (SAR + REAPER/CS2) ex.: GRACEAntarctica Antarctica Glaciologists General scientists and public Climate T.b.d. more modellers - long than 150 term predictions particip. in user requir. survey Common algorith+ processing chains ex.: GRACEGreenland Sea Ice Climate modellers (request long timeframe 1979-) Ice mapping Climate science / general public Altimetry SIT (REAPER/CS2) Arctic Sea Level ~ 45 reg. users ~ 100 downloads across 4 ECVs 10 s of downloads SIC (SIT in prep)
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