Dataset: ESA Soil Moisture Climate Change Initiative (Soil_Moisture_cci): COMBINED product, Version 06.2#

Dataset identifier: esacci.SOILMOISTURE.day.L3S.SSMV.multi-sensor.multi-platform.COMBINED.v06-2.r1
Data store: cciodp

How to open this dataset in AVL JupyterLab  

cciodp_store = new_data_store('cciodp')
ds = cciodp_store.open_data('esacci.SOILMOISTURE.day.L3S.SSMV.multi-sensor.multi-platform.COMBINED.v06-2.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 (°) -90.0 to 90.0
Time range 1978-11-01 to 2021-12-31
Time period 1D

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
sm Volumetric Soil Moisture m3 m-3
sm_uncertainty Volumetric Soil Moisture Uncertainty m3 m-3
flag Flag [none]
freqbandID Frequency Band Identification [none]
dnflag Day / Night Flag [none]
mode Satellite Mode [none]
sensor Sensor [none]
t0 Observation Timestamp days since 1970-01-01 00:00:00 UTC

Full variable metadata#

sm#

Field Value
dtype float32
units m3 m-3
valid_range 0.0, 1.0
long_name Volumetric Soil Moisture
_CoordinateAxes time lat lon
orig_data_type float32
fill_value -9999.0
size 16347225600
shape 15767, 720, 1440
chunk_sizes 1, 720, 1440
file_chunk_sizes 1, 720, 1440
data_type float32
dimensions time, lat, lon
file_dimensions time, lat, lon

sm_uncertainty#

Field Value
dtype float32
units m3 m-3
valid_range 0.0, 1.0
long_name Volumetric Soil Moisture Uncertainty
_CoordinateAxes time lat lon
orig_data_type float32
fill_value -9999.0
size 16347225600
shape 15767, 720, 1440
chunk_sizes 1, 720, 1440
file_chunk_sizes 1, 720, 1440
data_type float32
dimensions time, lat, lon
file_dimensions time, lat, lon

flag#

Field Value
_Unsigned false
dtype int8
long_name Flag
_CoordinateAxes time lat lon
flag_values 0, 1, 2, 4, 5, 6, 8, 12, 127
flag_meanings no_data_inconsistency_detected
bits 0, 1, 2, 3, 4, 5, 6, 7
bit_meanings no_data_inconsistency_detected
valid_range 0, 127
orig_data_type uint8
fill_value 127
size 16347225600
shape 15767, 720, 1440
chunk_sizes 1, 720, 1440
file_chunk_sizes 1, 720, 1440
data_type uint8
dimensions time, lat, lon
file_dimensions time, lat, lon

freqbandID#

Field Value
dtype int16
long_name Frequency Band Identification
_CoordinateAxes time lat lon
flag_values 0, 4, 64
flag_meanings NaN
valid_range 0, 511
bits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
bit_meanings NaN
orig_data_type int16
fill_value 0
size 16347225600
shape 15767, 720, 1440
chunk_sizes 1, 720, 1440
file_chunk_sizes 1, 720, 1440
data_type int16
dimensions time, lat, lon
file_dimensions time, lat, lon

dnflag#

Field Value
_Unsigned false
dtype int8
long_name Day / Night Flag
_CoordinateAxes time lat lon
flag_values 0, 1, 2, 3
flag_meanings NaN
bits 0, 1, 2
bit_meanings NaN
valid_range 0, 3
orig_data_type uint8
fill_value 0
size 16347225600
shape 15767, 720, 1440
chunk_sizes 1, 720, 1440
file_chunk_sizes 1, 720, 1440
data_type uint8
dimensions time, lat, lon
file_dimensions time, lat, lon

mode#

Field Value
_Unsigned false
dtype int8
long_name Satellite Mode
_CoordinateAxes time lat lon
flag_values 0, 1, 2, 3
flag_meanings NaN
bits 0, 1, 2
bit_meanings NaN
valid_range 0, 3
orig_data_type uint8
fill_value 0
size 16347225600
shape 15767, 720, 1440
chunk_sizes 1, 720, 1440
file_chunk_sizes 1, 720, 1440
data_type uint8
dimensions time, lat, lon
file_dimensions time, lat, lon

sensor#

Field Value
dtype int16
long_name Sensor
_CoordinateAxes time lat lon
flag_values 0, 1
flag_meanings NaN
valid_range 0, 16383
bits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
bit_meanings NaN
orig_data_type int16
fill_value 0
size 16347225600
shape 15767, 720, 1440
chunk_sizes 1, 720, 1440
file_chunk_sizes 1, 720, 1440
data_type int16
dimensions time, lat, lon
file_dimensions time, lat, lon

t0#

Field Value
dtype float64
long_name Observation Timestamp
units days since 1970-01-01 00:00:00 UTC
_CoordinateAxes time lat lon
valid_range 3227.0, 3229.0
orig_data_type float64
fill_value -9999.0
size 16347225600
shape 15767, 720, 1440
chunk_sizes 1, 720, 1440
file_chunk_sizes 1, 720, 1440
data_type float64
dimensions time, lat, lon
file_dimensions time, lat, lon

Full dataset metadata#

Field Value
title ESA Soil Moisture Climate Change Initiative (Soil_Moisture_cci): COMBINED product, Version 06.2
source WARP 5.5R1.1/AMI-WS/ERS12 Level 2 Soil Moisture; WARP 5.4R1.0/AMI-WS/ERS2 Level 2 Soil Moisture; H115+H116: Metop ASCAT Surface Soil Moisture Climate Data Record 12.5 km sampling; H115+H116: Metop ASCAT Surface Soil Moisture Climate Data Record 12.5 km sampling;; LPRMv061/SMMR/Nimbus 7 L3 Surface Soil Moisture, Ancillary Params, and quality flags; LPRMv061/SSMI/F08, F11, F13 DMSP L3 Surface Soil Moisture, Ancillary Params, and quality flags; LPRMv061/TMI/TRMM L2 Surface Soil Moisture, Ancillary Params, and QC; LPRMv061/AMSR-E/Aqua L2B Surface Soil Moisture, Ancillary Params, and QC; LPRMv061/WINDSAT/CORIOLIS L2 Surface Soil Moisture, Ancillary Params, and QC; LPRMv061/AMSR2/GCOM-W1 L3 Surface Soil Moisture, Ancillary Params; LPRMv061/SMOS/MIRAS L3 Surface Soil Moisture, CATDS Level 3 Brightness Temperatures (L3TB) version 300 RE03 & RE04; LPRMv061/SMAP_radiometer/SMAP L2 Surface Soil Moisture, Ancillary Params, and QC; LPRMv061/GMI/GPM L3 Surface Soil Moisture, Ancillary Params, and quality flags; LPRMv061/VIRR/FengYun-3B L3 Surface Soil Moisture, Ancillary Params, and quality flags;;
references http://www.esa-soilmoisture-cci.org; Dorigo, W.A., Wagner, W., Albergel, C., Albrecht, F., Balsamo, G., Brocca, L., Chung, D., Ertl, M., Forkel, M., Gruber, A., Haas, E., Hamer, D. P. Hirschi, M., Ikonen, J., De Jeu, R. Kidd, R. Lahoz, W., Liu, Y.Y., Miralles, D., Lecomte, P. (2017) ESA CCI Soil Moisture for improved Earth system understanding: State-of-the art and future directions. In Remote Sensing of Environment, 2017, ISSN 0034-4257, https://doi.org/10.1016/j.rse.2017.07.001; Gruber, A., Scanlon, T., van der Schalie, R., Wagner, W., Dorigo, W. (2019) Evolution of the ESA CCI Soil Moisture Climate Data Records and their underlying merging methodology. Earth System Science Data 11, 717-739, https://doi.org/10.5194/essd-11-717-2019; Gruber, A., Dorigo, W. A., Crow, W., Wagner W. (2017). Triple Collocation-Based Merging of Satellite Soil Moisture Retrievals. IEEE Transactions on Geoscience and Remote Sensing. PP. 1-13. https://doi.org/10.1109/TGRS.2017.2734070
product_version v06-2
comment This dataset was produced with funding of the ESA CCI+ Soil Moisture project; ESRIN Contract No: 4000126684/19/I-NB
history 2022-02-07 23:32:16 - product produced
project Climate Change Initiative - European Space Agency
ecv SOILMOISTURE
processing_level L3S
product_string COMBINED
data_type SSMV
abstract The Soil Moisture CCI COMBINED dataset is one of three datasets created as part of the European Space Agency's (ESA) Soil Moisture Essential Climate Variable (ECV) Climate Change Initiative (CCI) project. The product has been created by directly merging Level 2 scatterometer and radiometer soil moisture products derived from the AMI-WS, ASCAT, SMMR, SSM/I, TMI, AMSR-E, WindSat, AMSR2, SMOS, SMAP, FY-3B and GPM satellite instruments. PASSIVE and ACTIVE products have also been created. The v06.2 COMBINED product, provided as global daily images in NetCDF-4 classic file format, presents a global coverage of surface soil moisture at a spatial resolution of 0.25 degrees. It is provided in volumetric units [m3 m-3] and covers the period (yyyy-mm-dd) 1978-11-01 to 2021-12-31. For information regarding the theoretical and algorithmic base of the product, please see the Algorithm Theoretical Baseline Document. Additional reference documents and information relating to the dataset can also be found on the CCI Soil Moisture project website. The data set should be cited using the following references: 1. Gruber, A., Scanlon, T., van der Schalie, R., Wagner, W., and Dorigo, W. (2019). Evolution of the ESA CCI Soil Moisture climate data records and their underlying merging methodology, Earth Syst. Sci. Data, 11, 717–739, https://doi.org/10.5194/essd-11-717-2019 2. Dorigo, W.A., Wagner, W., Albergel, C., Albrecht, F., Balsamo, G., Brocca, L., Chung, D., Ertl, M., Forkel, M., Gruber, A., Haas, E., Hamer, D. P. Hirschi, M., Ikonen, J., De Jeu, R. Kidd, R. Lahoz, W., Liu, Y.Y., Miralles, D., Lecomte, P. (2017). ESA CCI Soil Moisture for improved Earth system understanding: State-of-the art and future directions. In Remote Sensing of Environment, 2017, ISSN 0034-4257, https://doi.org/10.1016/j.rse.2017.07.001
publication_date 2023-03-10T12:32:55
uuid e83e62dd493447c5808f80c36b5acac7
catalog_url https://catalogue.ceda.ac.uk/uuid/e83e62dd493447c5808f80c36b5acac7
sensor_id multi-sensor
platform_id multi-platform
cci_project SOILMOISTURE