Dataset: ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Ice Velocity data for the Greenland Margin from ERS-2 for winter 1995-1996, v1.1 (June 2016 release)#

Dataset identifier: esacci.ICESHEETS.unspecified.Unspecified.IV.AMI-SAR.ERS-2.UNSPECIFIED.1-1.greenland_margin_1995_1996
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.AMI-SAR.ERS-2.UNSPECIFIED.1-1.greenland_margin_1995_1996')

Bounding box map#

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 1995-09-02 to 1996-03-29

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] m/day
land_ice_surface_northing_velocity [none] m/day
land_ice_surface_vertical_velocity [none] m/day
land_ice_surface_velocity_magnitude [none] m/day
land_ice_surface_easting_velocity_std [none] m/day
land_ice_surface_northing_velocity_std [none] m/day
land_ice_surface_velocity_magnitude_std [none] m/day

Full variable metadata#

crs#

Field Value
grid_mapping_name polar_stereographic
standard_parallel 70.0
longitude_of_prime_meridian 0.0
straight_vertical_longitude_from_pole -45.0
semi_major_axis 6378137.0
inverse_flattening 298.257223563
latitude_of_projection_origin 90.0
false_easting 0.0
false_northing 0.0
DODS strlen: 0
orig_data_type bytes1024
size 1
shape 1
chunk_sizes 1
file_chunk_sizes 1
data_type bytes1024
dimensions
file_dimensions

land_ice_surface_easting_velocity#

Field Value
description easting ice velocity
grid_mapping crs
coordinates time y x
cell_methods time: mean (weighted average (based on error estimates) over contributing acquisitons)
missing_value 1e+20
units m/day
orig_data_type float32
fill_value 1e+20
size 15608201
shape 1, 5201, 3001
chunk_sizes 1, 1592, 918
file_chunk_sizes 1, 1592, 918
data_type float32
dimensions time, y, x
file_dimensions time, y, x

land_ice_surface_northing_velocity#

Field Value
description northing ice velocity
grid_mapping crs
coordinates time y x
cell_methods time: mean (weighted average (based on error estimates) over contributing acquisitons)
missing_value 1e+20
units m/day
orig_data_type float32
fill_value 1e+20
size 15608201
shape 1, 5201, 3001
chunk_sizes 1, 1592, 918
file_chunk_sizes 1, 1592, 918
data_type float32
dimensions time, y, x
file_dimensions time, y, x

land_ice_surface_vertical_velocity#

Field Value
description vertical ice velocity
grid_mapping crs
coordinates time y x
cell_methods time: mean (weighted average (based on error estimates) over contributing acquisitons)
missing_value 1e+20
units m/day
orig_data_type float32
fill_value 1e+20
size 15608201
shape 1, 5201, 3001
chunk_sizes 1, 1592, 918
file_chunk_sizes 1, 1592, 918
data_type float32
dimensions time, y, x
file_dimensions time, y, x

land_ice_surface_velocity_magnitude#

Field Value
units m/day
description magnitude of horizontal ice velocity
grid_mapping crs
coordinates time y x
cell_methods time: mean (weighted average (based on error estimates) over contributing acquisitons)
missing_value 1e+20
orig_data_type float32
fill_value 1e+20
size 15608201
shape 1, 5201, 3001
chunk_sizes 1, 1592, 918
file_chunk_sizes 1, 1592, 918
data_type float32
dimensions time, y, x
file_dimensions time, y, x

land_ice_surface_easting_velocity_std#

Field Value
units m/day
description easting ice velocity error estimate
grid_mapping crs
coordinates time y x
cell_methods time: mean (weighted average (based on error estimates) over contributing acquisitons)
missing_value 1e+20
orig_data_type float32
fill_value 1e+20
size 15608201
shape 1, 5201, 3001
chunk_sizes 1, 1592, 918
file_chunk_sizes 1, 1592, 918
data_type float32
dimensions time, y, x
file_dimensions time, y, x

land_ice_surface_northing_velocity_std#

Field Value
units m/day
description northing ice velocity error estimate
grid_mapping crs
coordinates time y x
cell_methods time: mean (weighted average (based on error estimates) over contributing acquisitons)
missing_value 1e+20
orig_data_type float32
fill_value 1e+20
size 15608201
shape 1, 5201, 3001
chunk_sizes 1, 1592, 918
file_chunk_sizes 1, 1592, 918
data_type float32
dimensions time, y, x
file_dimensions time, y, x

land_ice_surface_velocity_magnitude_std#

Field Value
units m/day
description horizontal ice velocity error magnitude estimate
grid_mapping crs
coordinates time y x
cell_methods time: mean (weighted average (based on error estimates) over contributing acquisitons)
missing_value 1e+20
orig_data_type float32
fill_value 1e+20
size 15608201
shape 1, 5201, 3001
chunk_sizes 1, 1592, 918
file_chunk_sizes 1, 1592, 918
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 data for the Greenland Margin from ERS-2 for winter 1995-1996, v1.1 (June 2016 release)
project ESA Greenland Icesheet CCI
ecv ICESHEETS
institute DTU-Space, Department of Microwaves and Remote Sensing
processing_level Unspecified
product_string UNSPECIFIED
data_type IV
sensor_id AMI-SAR
platform_id ERS-2
abstract This dataset contains ice velocities for the Greenland margin for winter 1995-1996, which have been produced by the ESA Greenland Ice Sheet Climate Change Initiative (CCI) project. The data were derived from intensity-tracking of ERS-2 data acquired between 03-09-1995 and 29-03-1996. It provides components of the ice velocity and the magnitude of the velocity. The data are provided on a polar stereographic grid (EPSG3413: Latitude of true scale 70N, Reference Longitude 45E). The horizontal velocity is provided in true meters per day, towards the EASTING(x) and NORTHING(y) directions of the grid; the vertical displacement (z), derived from a digital elevation model, is also provided. Please note that previous versions of this product provided the horizontal velocities as true East and North velocities. Both a single NetCDF file (including all measurements and annotation), and separate geotiff files with the velocity components are provided. The product was generated by DTU Space - Microwaves and Remote Sensing. For further information please see the product user guide. Please note - this product was released on the Greenland Ice Sheets download page in June 2016, but an earlier product (also accidentally labelled v1.1) was available through the CCI Open Data Portal and the CEDA archive until 29th November 2016. Please now use the later v1.1 product.
publication_date 2016-11-29T19:06:26
uuid 0b23b3c771db4fff8958196432d978cb
catalog_url https://catalogue.ceda.ac.uk/uuid/0b23b3c771db4fff8958196432d978cb
cci_project ICESHEETS