Dataset: ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Greenland Ice Velocity Map, Winter 2017-2018, v1.0#

Dataset identifier: esacci.ICESHEETS.unspecified.Unspecified.IV.SAR-C-(Sentinel-1).multi-platform.UNSPECIFIED.1-0.greenland_map_winter_2017_2018
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.1-0.greenland_map_winter_2017_2018')

Bounding box map#

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	2017-12-28 to 2018-02-28

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
land_ice_surface_easting_velocity	[none]	meter day-1
land_ice_surface_northing_velocity	[none]	meter day-1
land_ice_surface_vertical_velocity	[none]	meter day-1
land_ice_surface_velocity_magnitude	[none]	meter day-1
land_ice_surface_measurement_count	[none]	count
land_ice_surface_velocity_stddev	[none]	meter day-1

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	meter
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

land_ice_surface_easting_velocity#

Field	Value
units	meter day-1
description	easting ice velocity
grid_mapping	crs
coordinates	y x
orig_data_type	float32
fill_value	3.4028235e+38
size	16159792
shape	5401, 2992
chunk_sizes	1351, 748
file_chunk_sizes	1351, 748
data_type	float32
dimensions	y, x
file_dimensions	y, x

land_ice_surface_northing_velocity#

Field	Value
units	meter day-1
description	northing ice velocity
grid_mapping	crs
coordinates	y x
orig_data_type	float32
fill_value	3.4028235e+38
size	16159792
shape	5401, 2992
chunk_sizes	1351, 748
file_chunk_sizes	1351, 748
data_type	float32
dimensions	y, x
file_dimensions	y, x

land_ice_surface_vertical_velocity#

Field	Value
units	meter day-1
description	vertical ice velocity
grid_mapping	crs
coordinates	y x
orig_data_type	float32
fill_value	3.4028235e+38
size	16159792
shape	5401, 2992
chunk_sizes	1351, 748
file_chunk_sizes	1351, 748
data_type	float32
dimensions	y, x
file_dimensions	y, x

land_ice_surface_velocity_magnitude#

Field	Value
units	meter day-1
description	magnitude of horizontal ice velocity
grid_mapping	crs
coordinates	y x
orig_data_type	float32
fill_value	3.4028235e+38
size	16159792
shape	5401, 2992
chunk_sizes	1351, 748
file_chunk_sizes	1351, 748
data_type	float32
dimensions	y, x
file_dimensions	y, x

land_ice_surface_measurement_count#

Field	Value
units	count
description	count of measurements
grid_mapping	crs
coordinates	y x
_Unsigned	true
orig_data_type	uint16
fill_value	-1
size	16159792
shape	5401, 2992
chunk_sizes	1801, 998
file_chunk_sizes	1801, 998
data_type	uint16
dimensions	y, x
file_dimensions	y, x

land_ice_surface_velocity_stddev#

Field	Value
description	standard deviation of ice velocity
grid_mapping	crs
coordinates	y x
units	meter day-1
orig_data_type	float32
fill_value	3.4028235e+38
size	16159792
shape	5401, 2992
chunk_sizes	1351, 748
file_chunk_sizes	1351, 748
data_type	float32
dimensions	y, x
file_dimensions	y, x

Full dataset metadata#

Field	Value
product_version	1-0
title	ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Greenland Ice Velocity Map, Winter 2017-2018, v1.0
project	ESA Greenland Icesheet 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 provides an ice velocity map for the whole Greenland ice-sheet for the winter of 2017-2018, derived from Sentinel-1 SAR data acquired from 28/12/2017 to 28/02/2018, as part of the ESA Greenland Ice Sheet Climate Change Initiative (CCI) project. In total approximately 1900 S-1A & S-1B scenes are used to derive the surface velocity applying feature tracking techniques. The ice velocity map is provided at 500m grid spacing in North Polar Stereographic projection (EPSG: 3413). The horizontal velocity is provided in true meters per day, towards EASTING(vx) and NORTHING(vy) direction of the grid, and the vertical displacement (vz), derived from a digital elevation model, is also provided. The product was generated by ENVEO (Earth Observation Information Technology GmbH).
publication_date	2018-11-28T11:06:35
uuid	eaed9fba86c44e9c854dfbdec9d16b99
catalog_url	https://catalogue.ceda.ac.uk/uuid/eaed9fba86c44e9c854dfbdec9d16b99
platform_id	multi-platform
cci_project	ICESHEETS