SMOS Freeze and Thaw Processing and Dissemination Service#

How to open this dataset in DeepESDL JupyterLab#

from import new_data_store
store = new_data_store("s3", root="deep-esdl-public", storage_options=dict(anon=True))
ds = store.open_data('SMOS-snow-1x720x720-1.0.1.zarr')

Bounding box map#

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

Basic information#

Parameter Value
Bounding box longitude (°) -180 to 180
Bounding box latitude (°) 0 to 85
Time range 2010-07-01 to 2023-03-09

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
L3FT SMOS Level 3 Freeze Thaw Estimates [none]
PM Processing Mask [none]
quality_flag Quality Flag [none]
uncertainty Uncertainty [none]

Full variable metadata#


Field Value
flag_meanings Thaw Partial Frozen
flag_values 1, 2, 3
grid_mapping crs
long_name SMOS Level 3 Freeze Thaw Estimates
valid_range 1, 3


Field Value
grid_mapping crs
long_name Processing Mask
valid_range 0, 8


Field Value
GeoTransform -9000000 25000 0 9000000 0 -25000
false_easting 0
false_northing 0
grid_mapping_name lambert_azimuthal_equal_area
inverse_flattening 298
latitude_of_projection_origin 90
longitude_of_prime_meridian 0
longitude_of_projection_origin 0
semi_major_axis 6380000.0
spatial_ref PROJCS["unnamed",GEOGCS["WGS 84",DATUM["unknown",SPHEROID["WGS84",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433]],PROJECTION["Lambert_Azimuthal_Equal_Area"],PARAMETER["latitude_of_center",90],PARAMETER["longitude_of_center",0],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]]]


Field Value
grid_mapping crs
long_name Quality Flag
valid_range 0, 255


Field Value
grid_mapping crs
long_name Uncertainty
valid_range 0, 100

Full dataset metadata#

Field Value
ancillarydata_2mair Ancillary data for 2m airtemperature: ECMWF ERA Interim reanalysis (1-Jul-2010 - 31-Jul-2018) and ECMWF NRT data (1-Aug-2018 onwards)
ancillarydata_snowcover Ancillary data for snow cover: IMS DAILY NORTHERN HEMISPHERE SNOW AND ICE ANALYSIS AT 4 KM
contact Kimmo Rautiainen <>
coordinate_system Equal-Area Scalable Earth Grid 2.0 (EASE-Grid 2.0) - Northern Hemisphere
data_date 20100701
incidence_angle_range 50-55 degrees
latitude_range 0N - 85N
longitude_range 180W - 180E
moving_average 20 days
orbits_included Currently only descending orbits used
processing_date 2019-05-22
processing_organisation Finnish Meteorological Institute
processing_software_name FMI SMOS F/T processing sowtware (Rautiainen, Cohen, Hiltunen, Ikonen, Parkkinen, Moisander, Takala 2016-2019)
processing_software_version v_2.00
project_id SMOS Freeze and Thaw Processing and Dissemination Service
sensor SMOS
smosinputdataversion SMOS input data: CATDS v620
spatial_resolution 25 X 25
title SMOS Freeze and Thaw Processing and Dissemination Service