Dataset: ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Greenland Gravimetric Mass Balance from GRACE data (CSR RL06), derived by DTU Space, v1.5#

Dataset identifier: esacci.ICESHEETS.yr.Unspecified.GMB.GRACE-instrument.GRACE.UNSPECIFIED.1-5.greenland_gmb_mass_trends
Data store: cciodp

How to open this dataset in AVL JupyterLab  ⧉

cciodp_store = new_data_store('cciodp')
ds = cciodp_store.open_data('esacci.ICESHEETS.yr.Unspecified.GMB.GRACE-instrument.GRACE.UNSPECIFIED.1-5.greenland_gmb_mass_trends')

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	2002-03-31 to 2016-06-30
Time period	1Y

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
t	Average time for time slice	days since 2003-01-01 00:00:00
start_time	Mean of time span	days since 2003-01-01 00:00:00
end_time	End of time span	days since 2003-01-01 00:00:00
GMB_trend	Mass trend for time span	[none]

Full variable metadata#

t#

Field	Value
long_name	Average time for time slice
units	days since 2003-01-01 00:00:00
title	Time
calendar	gregorian
orig_data_type	float32
fill_value	None
size	10
shape	10
chunk_sizes	10
file_chunk_sizes	10
data_type	float32
dimensions	time
file_dimensions	time

start_time#

Field	Value
long_name	Mean of time span
units	days since 2003-01-01 00:00:00
title	Time
calendar	gregorian
orig_data_type	float32
fill_value	None
size	10
shape	10
chunk_sizes	10
file_chunk_sizes	10
data_type	float32
dimensions	time
file_dimensions	time

end_time#

Field	Value
long_name	End of time span
units	days since 2003-01-01 00:00:00
title	Time
calendar	gregorian
orig_data_type	float32
fill_value	None
size	10
shape	10
chunk_sizes	10
file_chunk_sizes	10
data_type	float32
dimensions	time
file_dimensions	time

GMB_trend#

Field	Value
long_name	Mass trend for time span
coordinates	longitudes latitudes
unit	mm water equivalent
source	GRACE
orig_data_type	float32
fill_value	None
size	9010
shape	901, 10
chunk_sizes	901, 10
file_chunk_sizes	901, 10
data_type	float32
dimensions	meas_ind, time
file_dimensions	meas_ind, time

Full dataset metadata#

Field	Value
product_version	1-5
ecv	ICESHEETS
processing_level	Unspecified
product_string	UNSPECIFIED
data_type	GMB
sensor_id	GRACE-instrument
platform_id	GRACE
abstract	This dataset provides the Gravitational Mass Balance (GMB) product derived from gravimetry data from the GRACE satellite instrument, by DTU Space. The data consists of two products: a mass change time series for the entire Greenland Ice Sheet and different drainage basins for the period April 2002 to June 2016; and mass trend grids for different 5-year periods between 2003 and 2016. This version (1.5) is derived from GRACE monthly solutions from the CSR RL06 product. The mass change time series contains the mass change (with respect to a chosen reference month) for all of the Greenland Ice Sheet and each individual drainage basin. For each month (defined by a decimal year) a mass change in Gt and its associated error (also in Gt) is provided. The mass trend grid product is given in units of mm water equivalent per year. Mass balance is an important variable to understand glacial thinning and ablation rates to enable mapping glacier area change. The time series allows the longer term comparison of trends whereas the mass trend grids provide a yearly snapshot which can be further analysed and compared across the data set. Basin definitions and further data descriptions can be found in the Algorithm Theoretical Baseline Document (ST-DTU-ESA-GISCCI-ATBD-001_v3.1.pdf) and Product Specification Document (ST-DTU-ESA-GISCCI-PSD_v2.2.pdf) which are provided on the Greenland Ice Sheet CCI project website. Citation: Barletta, V. R., Sørensen, L. S., and Forsberg, R.: Scatter of mass changes estimates at basin scale for Greenland and Antarctica, The Cryosphere, 7, 1411-1432, doi:10.5194/tc-7-1411-2013, 2013.
title	ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Greenland Gravimetric Mass Balance from GRACE data (CSR RL06), derived by DTU Space, v1.5
publication_date	2018-11-28T17:10:36
uuid	ff4bfe39b7fe42fc993341d3cebdabb5
catalog_url	https://catalogue.ceda.ac.uk/uuid/ff4bfe39b7fe42fc993341d3cebdabb5
cci_project	ICESHEETS