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

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