Dataset: ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Ice Velocity time series for the Jakobshavn Glacier for 2014-2017 from Sentinel-1 data, v1.1#
Dataset identifier: esacci.ICESHEETS.unspecified.Unspecified.IV.SAR-C-(Sentinel-1).multi-platform.UNSPECIFIED.1-1.greenland_s1_250m_20141011_20170317_Jakobshavn
Data store: cciodp
How to open this dataset in AVL JupyterLab
cciodp_store = new_data_store('cciodp')
ds = cciodp_store.open_data('esacci.ICESHEETS.unspecified.Unspecified.IV.SAR-C-(Sentinel-1).multi-platform.UNSPECIFIED.1-1.greenland_s1_250m_20141011_20170317_Jakobshavn')
Bounding box map#
cciodp_store = new_data_store('cciodp')
ds = cciodp_store.open_data('esacci.ICESHEETS.unspecified.Unspecified.IV.SAR-C-(Sentinel-1).multi-platform.UNSPECIFIED.1-1.greenland_s1_250m_20141011_20170317_Jakobshavn')
Map tiles and data from OpenStreetMap, under the ODbL.
Basic information#
| Parameter | Value |
|---|---|
| Bounding box longitude (°) | -80.0 to -10.0 |
| Bounding box latitude (°) | 60.0 to 90.0 |
| Time range | 2014-10-10 to 2017-03-17 |
Click here for full dataset metadata.
Variable list#
Click on a variable name to jump to the variable’s full metadata.
| Variable | Long name | Units |
|---|---|---|
| alt | Height above WGS84 | m |
| land_ice_surface_east_velocity | [none] | m/day |
| land_ice_surface_north_velocity | [none] | m/day |
Full variable metadata#
crs#
| Field | Value |
|---|---|
| grid_mapping_name | polar_stereographic |
| standard_parallel | 70.0 |
| straight_vertical_longitude_from_pole | -45.0 |
| false_easting | 0.0 |
| false_northing | 0.0 |
| unit | metre |
| latitude_of_projection_origin | 90.0 |
| spatial_ref | PROJCS[\"WGS 84 / NSIDC Sea Ice Polar Stereographic North\",GEOGCS[\"WGS 84\",DATUM[\"WGS_1984\",SPHEROID[\"WGS 84\",6378137,298.257223563,AUTHORITY[\"EPSG\",\"7030\"]],AUTHORITY[\"EPSG\",\"6326\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4326\"]],PROJECTION[\"Polar_Stereographic\"],PARAMETER[\"latitude_of_origin\",70],PARAMETER[\"central_meridian\",-45],PARAMETER[\"scale_factor\",1],PARAMETER[\"false_easting\",0],PARAMETER[\"false_northing\",0],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"X\",EAST],AXIS[\"Y\",NORTH],AUTHORITY[\"EPSG\",\"3413\"]] |
| orig_data_type | int32 |
| fill_value | 9223372036854775807 |
| size | 1 |
| shape | 1 |
| chunk_sizes | 1 |
| file_chunk_sizes | 1 |
| data_type | int64 |
| dimensions | |
| file_dimensions |
alt#
| Field | Value |
|---|---|
| standard_name | height |
| long_name | Height above WGS84 |
| units | m |
| description | Heights (WGS84 used for velocity projection) |
| source | External ( Greenland Ice Mapping Project (GIMP) 250m DEM ) |
| grid_mapping | crs |
| coordinates | y x |
| orig_data_type | int16 |
| fill_value | -9999 |
| size | 92664 |
| shape | 234, 396 |
| chunk_sizes | 234, 396 |
| file_chunk_sizes | 234, 396 |
| data_type | int16 |
| dimensions | y, x |
| file_dimensions | y, x |
land_ice_surface_east_velocity#
| Field | Value |
|---|---|
| description | eastwards ice velocity |
| grid_mapping | crs |
| coordinates | time y x |
| cell_methods | spatial filter (smooth: median 3x3, gapfill: planefit 5,5) |
| units | m/day |
| orig_data_type | float32 |
| fill_value | 3.4028235e+38 |
| size | 10193040 |
| shape | 110, 234, 396 |
| chunk_sizes | 37, 78, 132 |
| file_chunk_sizes | 37, 78, 132 |
| data_type | float32 |
| dimensions | time, y, x |
| file_dimensions | time, y, x |
land_ice_surface_north_velocity#
| Field | Value |
|---|---|
| units | m/day |
| description | northwards ice velocity |
| grid_mapping | crs |
| coordinates | time y x |
| cell_methods | spatial filter (smooth: median 3x3, gapfill: planefit 5,5) |
| orig_data_type | float32 |
| fill_value | 3.4028235e+38 |
| size | 10193040 |
| shape | 110, 234, 396 |
| chunk_sizes | 37, 78, 132 |
| file_chunk_sizes | 37, 78, 132 |
| data_type | float32 |
| dimensions | time, y, x |
| file_dimensions | time, y, x |
Full dataset metadata#
| Field | Value |
|---|---|
| product_version | 1-1 |
| title | ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Ice Velocity time series for the Jakobshavn Glacier for 2014-2017 from Sentinel-1 data, v1.1 |
| project | ESA Greenland Ice Sheet CCI |
| ecv | ICESHEETS |
| institute | ENVironmental Earth Observation IT GmbH |
| processing_level | Unspecified |
| product_string | UNSPECIFIED |
| data_type | IV |
| sensor_id | SAR-C-(Sentinel-1) |
| abstract | This dataset contains a time series of ice velocities for the Jakobshavn glacier in Greenland, generated from Sentinel-1 SAR (Synthetic Aperture Radar) data acquired from October 2014 and March 2017. It has been produced by the ESA Greenland Ice Sheet Climate Change Initiative (CCI) project. Data files are delivered in NetCDF format at 250m grid spacing in North Polar Stereographic projection (EPSG: 3413). The horizontal velocity components are provided in true meters per day, towards the EASTING(x) and NORTHING(y) directions of the grid. |
| publication_date | 2019-02-04T17:41:08 |
| uuid | e1c0c34e0cc942898b3626efd1dcc095 |
| catalog_url | https://catalogue.ceda.ac.uk/uuid/e1c0c34e0cc942898b3626efd1dcc095 |
| platform_id | multi-platform |
| cci_project | ICESHEETS |