Antarctic Ice Sheet cci. Anna Hogg
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1 Antarctic Ice Sheet cci Anna Hogg
2 Overview 1.Project Summary and Status 2.AIS cci Products Surface Elevation Change Gravimetry Mass Balance Ice Velocity Grounding Line Location 3.Climate Assessment 4.AIS cci Cross ECV interactions Open Data portals SLR budget NRT monitoring Ice sheet modelling
3 Project Status Over 160 respondents to Antarctic user requirement survey High demand for data products Large volume of EO data available in Antarctica Long term climate data record 25 years of altimetry Present day Near Real Time (NRT) monitoring now possible with Sentinels Algorithm and error estimates refined and documented Processing systems documented and set up Currently producing and validating year 1 CRDP Year 1 Review Meeting 13 th April 2016
4 Surface Elevation Change Ice thickness change (m/yr) -2 +2
5 Gravimetry Mass Balance mm water equivalent
6 AIS cci Products Summary Parameter Product EO Input Data SEC Gridded E1/E2, EV, CS2 IV WAIS + APIS IV Ice stream GMB Gridded GMB GLL Basin product GLL E1, E2, EV, R1, TSX, S1 E1, E2, EV, R1, TSX, S1 GRACE GRACE E1, E2, EV, R1, TSX, S1 Temporal Temporal Spatial Spatial Range Frequency Coverage Resolution 1992 monthly Antarctica 5km grid 1992 decadal WAIS 500m grid 1992 annual 20 ice streams 500m grid monthly monthly decadal Antarctica 100km grid drainage Antarctica 5-10 streams basin ice 250m line
7 Climate Research Group Partner D. Vaughan A. LeBroq M. R. van den Broeke Organisation British Antarctic Survey University of Exeter University of Utrecht Country Competence Role UK Glaciology CRG Lead UK Ice Sheet Modelling Netherlands Climate modelling CRG Member (Antarctica) CRG Member (Antarctica) R. Arthern British Antarctic Survey UK Ice Sheet modelling CRG Member (Antarctica) E. Schrama TU Delft Netherlands Gravimetry CRG Member (AIS & GrIS)
8 Y1 Climate Assessment The SEC product comprises two different datasets: SEC gridded product: Mass-change grids covering the entire AIS (5km x 5km) Temporal resolution: 5 year epochs Temporal range: netcdf SEC basin product: Mass-change time series for zwally basins 6 and 13 Temporal resolution: monthly Temporal range: Surface elevation change per basin CSV format
9 Y1 Climate Assessment The GMB product comprises two different datasets: GMB gridded product: Mass-change grids covering the entire AIS (50km x 50km, EPSG3031) Temporal resolution: monthly Temporal range: netcdf and ASCII format GMB basin product: Mass-change time series per basin Temporal resolution: monthly Temporal range: Mass balance estimate per basin ASCII format
10 Y1 Climate Assessment The IV product comprises: PIG only in Y1 *.tiff s of ice velocity of [pine Island Glacier Temporal resolution: 12-day Temporal range: geotiff format
11 Y1 Climate Assessment The GLL product is delivered in three different data formats which contain exactly the same content: ESRI Shapefile WKT Textfile Google KML/KMZ
12 Antarctic ice sheet contributed 3.7 mm to global sea level rise since % ice velocity speed up since 1992 Altimetry is longest continuous record of change in many areas observations start before present day changes began 0.27 mm/yr in 1990 s ERS-1 ERS mm/yr between 2005 and 2010 Envisat CryoSat
13 Operational Services NRT Sea Ice Thickness
14 Operational Services NRT Ice Velocity
15 Science: Community Assessments
16 Science: Ice Ocean Atmosphere Interactions Ice sheets Antarctica Greenland Glaciers Sea level rise Sea ice Sea surface temperature Clouds
The Cryosphere CCI s. Glaciers CCI Greenland Ice Sheet CCI Antarctica Ice Sheet CCI Sea Ice CCI 2012-
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