Dataset: ESA Permafrost Climate Change Initiative (Permafrost_cci): Permafrost extent for the Northern Hemisphere, v3.0#

Dataset identifier: esacci.PERMAFROST.yr.L4.PFR.multi-sensor.multi-platform.MODISLST_CRYOGRID.03-0.r1
Data store: cciodp

How to open this dataset in AVL JupyterLab  

cciodp_store = new_data_store('cciodp')
ds = cciodp_store.open_data('esacci.PERMAFROST.yr.L4.PFR.multi-sensor.multi-platform.MODISLST_CRYOGRID.03-0.r1')

Bounding box map#

Bounding box map
Map tiles and data from OpenStreetMap, under the ODbL.

Basic information#

Parameter Value
Bounding box longitude (°) -180.0 to 180.0
Bounding box latitude (°) 30.0 to 90.0
Time range 1997-01-01 to 2019-12-31
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
polar_stereographic [none] [none]
PFR [none] percent

Full variable metadata#

polar_stereographic#

Field Value
grid_mapping_name polar_stereographic
straight_vertical_longitude_from_pole 0.0
false_easting 0.0
false_northing 0.0
latitude_of_projection_origin 90.0
standard_parallel 71.0
longitude_of_prime_meridian 0.0
semi_major_axis 6378137.0
inverse_flattening 298.257223563
spatial_ref GEOGCS[\"WGS 84\",DATUM[\"WGS_1984\",SPHEROID[\"WGS 84\",6378137,298.257223563,AUTHORITY[\"EPSG\",\"7030\"]],AUTHORITY[\"EPSG\",\"6326\"]],PRIMEM[\"Greenwich\",0],UNIT[\"degree\",0.0174532925199433],AUTHORITY[\"EPSG\",\"4326\"]],PROJECTION[\"Polar_Stereographic\"],PARAMETER[\"latitude_of_origin\",45],PARAMETER[\"central_meridian\",-170],PARAMETER[\"scale_factor\",1],PARAMETER[\"false_easting\",0],PARAMETER[\"false_northing\",0],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]]
crs_wkt PROJCS[\"WGS 84 / Arctic Polar Stereographic\",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\",71],PARAMETER[\"central_meridian\",0],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\",\"3995\"]]
esri_wkt PROJCS[\"WGS_84_Arctic_Polar_Stereographic\",GEOGCS[\"GCS_WGS_1984\",DATUM[\"D_WGS_1984\",SPHEROID[\"WGS_1984\",6378137,298.257223563]],PRIMEM[\"Greenwich\",0],UNIT[\"Degree\",0.017453292519943295]],PROJECTION[\"Stereographic_North_Pole\"],PARAMETER[\"standard_parallel_1\",71],PARAMETER[\"central_meridian\",0],PARAMETER[\"false_easting\",0],PARAMETER[\"false_northing\",0],UNIT[\"Meter\",1]]
GeoTransform -8679599.425969256 926.6254331383326 0 4120958.560533902 0 -926.6254331383326
orig_data_type int32
fill_value 9223372036854775807
size 1
shape 1
chunk_sizes 1
file_chunk_sizes 1
data_type int64
dimensions
file_dimensions

PFR#

Field Value
_Unsigned false
standard_name permafrost_area_fraction
grid_mapping polar_stereographic
units percent
conversion no
valid_min 0
valid_max 100
actual_min 14 percent
actual_max 100 percent
orig_data_type uint8
fill_value 0
size 2598126762
shape 17, 10353, 14762
chunk_sizes 1, 1479, 2109
file_chunk_sizes 1, 1479, 2109
data_type uint8
dimensions time, y, x
file_dimensions time, y, x

Full dataset metadata#

Field Value
title ESA Permafrost Climate Change Initiative (Permafrost_cci): Permafrost extent for the Northern Hemisphere, v3.0
source MODIS MOD11A1 and MYD11A1 level 3 Collection 6, ESA CCI Land Cover dataset v1.6.1, ERA5 Reanalysis
history 2021-02-24 10:34:30
references http://cci.esa.int/Permafrost, https://doi.org/10.5194/gmd-9-523-2016
product_version 03-0
comment These data were produced at ESA CCI as part of the ESA Permafrost CCI+ project Contract No 4000123681-18-I-NB. They are part of the 2nd Climate Research Data Package release.
project Climate Change Initiative - European Space Agency
ecv PERMAFROST
institute Department of Geosciences, University of Oslo
processing_level L4
data_type PFR
abstract This dataset contains permafrost extent data produced as part of the European Space Agency's (ESA) Climate Change Initiative (CCI) Permafrost project. It forms part of the second version of their Climate Research Data Package (CRDP v2). It is derived from a thermal model driven and constrained by satellite data. Grid products of CDRP v2 are released in annual files, covering the start to the end of the Julian year. This corresponds to average annual ground temperatures (at 2 m depth) which forms the basis for the retrieval of yearly fraction of permafrost-underlain and permafrost-free area within a pixel. A classification according to the IPA (International Permafrost Association) zonation delivers the well-known permafrost zones, distinguishing isolated (0-10%) sporadic (10-50%), discontinuous (50-90%) and continuous permafrost (90-100%). Case A: This covers the Northern Hemisphere (north of 30°) for the period 2003-2019 based on MODIS Land Surface temperature merged with downscaled ERA5 reanalysis near-surface air temperature data. Case B: This covers the Northern Hemisphere (north of 30°) for the period 1997-2002 based on downscaled ERA5 reanalysis near-surface air temperature data which are bias-corrected with the Case A product for the overlap period 2003-2019 using a pixel-specific statistics for each day of the year.
publication_date 2021-06-25T16:57:59
uuid 6e2091cb0c8b4106921b63cd5357c97c
catalog_url https://catalogue.ceda.ac.uk/uuid/6e2091cb0c8b4106921b63cd5357c97c
sensor_id multi-sensor
platform_id multi-platform
product_string MODISLST_CRYOGRID
cci_project PERMAFROST