Dataset: ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Optical ice velocity of the Upernavik Glacier between 2017-07-15 and 2017-08-14, generated using Sentinel-2 data, v1.1#

Dataset identifier: esacci.ICESHEETS.unspecified.Unspecified.IV.MSI-(Sentinel-2).multi-platform.UNSPECIFIED.1-1.greenland_s2_50m_seasonal_20170715_20170814_Upernavik
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.MSI-(Sentinel-2).multi-platform.UNSPECIFIED.1-1.greenland_s2_50m_seasonal_20170715_20170814_Upernavik')

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 2017-07-14 to 2017-08-14

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_northing_velocity land_ice_surface_northing_velocity m/day
land_ice_surface_easting_velocity land_ice_surface_easting_velocity m/day

Full variable metadata#

crs#

Field Value
latitude_of_projection_origin 90.0
epsg 3413
straight_vertical_longitude_from_pole -45.0
standard_parallel 70.0
false_northing 0.0
grid_mapping_name polar_stereographic
false_easting 0.0
unit m
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\"]]
GeoTransform -407850.0 50.0 0.0 -1815100.0 0.0 -50.0
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_northing_velocity#

Field Value
long_name land_ice_surface_northing_velocity
description northing ice velocity
standard_name land_ice_surface_northing_velocity
grid_mapping crs
units m/day
coordinates time y x
orig_data_type float32
fill_value None
size 13397870
shape 1, 4505, 2974
chunk_sizes 1, 4505, 2974
file_chunk_sizes 1, 4505, 2974
data_type float32
dimensions time, y, x
file_dimensions time, y, x

land_ice_surface_easting_velocity#

Field Value
long_name land_ice_surface_easting_velocity
description easting ice velocity
standard_name land_ice_surface_easting_velocity
coordinates time y x
grid_mapping crs
units m/day
orig_data_type float32
fill_value None
size 13397870
shape 1, 4505, 2974
chunk_sizes 1, 4505, 2974
file_chunk_sizes 1, 4505, 2974
data_type float32
dimensions time, y, x
file_dimensions time, y, x

Full dataset metadata#

Field Value
product_version 1-1
project ESA Greenland Ice Sheet CCI
source Sentinel-2
comment Pixel offsets tracked using Imcorr. Input files were /snufkin/projects/cci/s2raw/s2raw/21XWA/2017-07-16/Seq00/B02.tiff and /snufkin/projects/cci/s2raw/s2raw/21XWA/2017-07-31/Seq00/B02.tiff. Intrinsic S2 shift (faulty georeferencing) estimated as (x,y) = (-0.0980, 0.0134) pixels. Shift was corrected. Pixel offsets converted to m/day using scaling dx_in_meters/dt_in_days = 10.0/15.0 = 0.7.
history 2018-05-11 15:33:54
title ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Optical ice velocity of the Upernavik Glacier between 2017-07-15 and 2017-08-14, generated using Sentinel-2 data, v1.1
ecv ICESHEETS
institute Science [&] Technology AS
processing_level Unspecified
product_string UNSPECIFIED
data_type IV
sensor_id MSI-(Sentinel-2)
abstract This dataset contains optical ice velocity time series and seasonal product of the Upernavik Glacier in Greenland, derived from intensity-tracking of Sentinel-2 data acquired between 2017-07-15 and 2017-08-14. It has been produced as part of the ESA Greenland Ice sheet CCI project. The data are provided on a polar stereographic grid (EPSG 3413:Latitude of true scale 70N, Reference Longitude 45E) with 50m grid spacing. The horizontal velocity is provided in true meters per day, towards EASTING (x) and NORTHING (y) direction of the grid. The product was generated by S[&]T Norway.
publication_date 2018-11-29T14:36:54
uuid 84faf575c8e841a3a16476b05cbd657d
catalog_url https://catalogue.ceda.ac.uk/uuid/84faf575c8e841a3a16476b05cbd657d
platform_id multi-platform
cci_project ICESHEETS