Dataset: ESA Land Surface Temperature Climate Change Initiative (LST_cci): All-weather MicroWave Land Surface Temperature (MW-LST) global data record (1996-2020), v2.33#

Dataset identifier: esacci.LST.yr.L3C.LST.multi-sensor.multi-platform.SSMI_SSMIS.v2-33.ASC
Data store: cciodp

How to open this dataset in AVL JupyterLab  

cciodp_store = new_data_store('cciodp')
ds = cciodp_store.open_data('esacci.LST.yr.L3C.LST.multi-sensor.multi-platform.SSMI_SSMIS.v2-33.ASC')

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 1996-01-01 to 2020-12-31
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
dtime time difference from reference time seconds
satze satellite zenith angle degrees
sataz satellite azimuth angle degrees
solze solar zenith angle degrees
solaz solar azimuth angle degrees
lst land surface temperature kelvin
lst_uncertainty land surface temperature total uncertainty kelvin
n number of pixels averaged 1
qual_flag Quality flags [none]
lst_unc_ran uncertainty from uncorrelated errors kelvin
lst_unc_loc_atm uncertainty from locally correlated errors on atmospheric scales kelvin
lst_unc_loc_sfc uncertainty from locally correlated errors on surface scales kelvin
lst_unc_sys uncertainty from large scale systematic errors kelvin
lst_time_correction offset to be added to the land surface temperature to adjust its value at the overpass local time to the value that would have been measured at 6PM local time kelvin
lst_unc_time_correction land surface temperature uncertainty from time correction errors kelvin

Full variable metadata#

dtime#

Field Value
long_name time difference from reference time
units seconds
valid_min 0.0
valid_max 31622400.0
coordinates lat lon
actual_range 12811.698, 126303.33
orig_data_type float32
fill_value -32768.0
size 25920000
shape 25, 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

satze#

Field Value
long_name satellite zenith angle
units degrees
add_offset 0.0
scale_factor 0.01
valid_min 0
valid_max 18000
coordinates lat lon
actual_range 52.73, 53.27
orig_data_type int16
fill_value -32768
size 25920000
shape 25, 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

sataz#

Field Value
long_name satellite azimuth angle
units degrees
add_offset 0.0
scale_factor 0.01
valid_min -18000
valid_max 18000
coordinates lat lon
actual_range -179.06999, 179.48999
orig_data_type int16
fill_value -32768
size 25920000
shape 25, 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

solze#

Field Value
long_name solar zenith angle
units degrees
add_offset 0.0
scale_factor 0.01
valid_min 0
valid_max 18000
coordinates lat lon
actual_range 56.449997, 123.5
orig_data_type int16
fill_value -32768
size 25920000
shape 25, 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

solaz#

Field Value
long_name solar azimuth angle
units degrees
add_offset 0.0
scale_factor 0.01
valid_min -18000
valid_max 18000
coordinates lat lon
actual_range 2.56, 113.24
orig_data_type int16
fill_value -32768
size 25920000
shape 25, 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

lst#

Field Value
long_name land surface temperature
units kelvin
add_offset 273.15
scale_factor 0.01
valid_min -8315
valid_max 7685
coordinates lat lon
actual_range 212.04, 316.59
orig_data_type int16
fill_value -32768
size 25920000
shape 25, 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

lst_uncertainty#

Field Value
long_name land surface temperature total uncertainty
units kelvin
add_offset 0.0
scale_factor 0.001
valid_min 0
valid_max 10000
coordinates lat lon
actual_range 0.106000006, 4.7990003
orig_data_type int16
fill_value -32768
size 25920000
shape 25, 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

n#

Field Value
long_name number of pixels averaged
units 1
valid_min 0
valid_max 18750
coordinates lat lon
actual_range 1, 365
orig_data_type int16
fill_value -32768
size 25920000
shape 25, 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

qual_flag#

Field Value
long_name Quality flags
flag_meanings no_use no_use no_use snow_ice-1_is_snow_ice microwave_penetration_depth-1_is_ground_with_large_penetration_depth deep_convection_occurence-1_is_possibility_of_deep_convection coast-1_is_cost inundation_risk-1_is_possibility_of_inundated_land
flag_masks 1, 2, 4, 8, 16, 32, 64, 128
valid_min 0
valid_max 255
coordinates lat lon
actual_range -32768, 224
orig_data_type int16
fill_value -32768
size 25920000
shape 25, 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

lst_unc_ran#

Field Value
long_name uncertainty from uncorrelated errors
units kelvin
add_offset 0.0
scale_factor 0.001
valid_min 0
valid_max 10000
coordinates lat lon
orig_data_type int16
fill_value -32768
size 25920000
shape 25, 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

lst_unc_loc_atm#

Field Value
long_name uncertainty from locally correlated errors on atmospheric scales
units kelvin
add_offset 0.0
scale_factor 0.001
valid_min 0
valid_max 10000
coordinates lat lon
orig_data_type int16
fill_value -32768
size 25920000
shape 25, 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

lst_unc_loc_sfc#

Field Value
long_name uncertainty from locally correlated errors on surface scales
units kelvin
add_offset 0.0
scale_factor 0.001
valid_min 0
valid_max 10000
coordinates lat lon
orig_data_type int16
fill_value -32768
size 25920000
shape 25, 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

lst_unc_sys#

Field Value
long_name uncertainty from large scale systematic errors
units kelvin
add_offset 0.0
scale_factor 0.001
valid_min 0
valid_max 10000
coordinates lat lon
orig_data_type int16
fill_value -32768
size 1
shape 1
chunk_sizes 1
file_chunk_sizes 1
data_type int16
dimensions length_scale
file_dimensions length_scale

lst_time_correction#

Field Value
long_name offset to be added to the land surface temperature to adjust its value at the overpass local time to the value that would have been measured at 6PM local time
units kelvin
add_offset 0.0
scale_factor 0.01
valid_min -1000
valid_max 1000
coordinates lat lon
actual_range -3.74, 3.02
orig_data_type int16
fill_value -32768
size 25920000
shape 25, 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

lst_unc_time_correction#

Field Value
long_name land surface temperature uncertainty from time correction errors
units kelvin
add_offset 0.0
scale_factor 0.001
valid_min 0
valid_max 10000
coordinates lat lon
actual_range 0.0, 8.607
orig_data_type int16
fill_value -32768
size 25920000
shape 25, 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

Full dataset metadata#

Field Value
title ESA Land Surface Temperature Climate Change Initiative (LST_cci): All-weather MicroWave Land Surface Temperature (MW-LST) global data record (1996-2020), v2.33
source Satellite Application Facility on Climate Monitoring FCDR MWI, DOI:10.5676/EUM_SAF_CM/FCDR_MWI/V003
history Created using software developed at Estellus
references http://cci.esa.int/lst
comment These data were produced as part of the ESA LST CCI project
project Climate Change Initiative - European Space Agency
product_version v2-33
ecv LST
institute Estellus
processing_level L3C
product_string SSMI_SSMIS
data_type LST
abstract MW-LST is a data record of land surface temperature (LST) derived from the microwave instruments Defense Meteorological Satellite Program (DMSP) Special Sensor Microwave/Imager (SSM/I) and Special Sensor Microwave Imager / Sounder (SSMIS). Observations available at frequencies close to 18, 22, 26, and 85 GHz are used as an input to a retrieval algorithm that produces LST over all continental surfaces, twice per day (6 am/pm), at a spatial resolution of ~25 km, and over 25 years (1996-2020). The data record has been produced by the company Estellus working within the ESA Land Surface Temperature Climate Change Initiative (LST_cci). Compared with the remaining infrared LST data records of the LST_cci, the spatial resolution of the MW-LST is coarser, and the associated retrieval errors are larger. However, it offers LST estimates for clear-sky and cloudy conditions, therefore complementing the IR LST data records, which can only provide LST for clear skies. The data record is temporally and spatially complete, although in rare occasions some data can be missing due to missing observations, e.g., due to satellite maintenance operations or anomalous behavior. The data record is provided on a regular grid of 0.25x0.25 degrees, saved as daily, monthly, and yearly netcdf files. The reader is referred to the LST_cci website for more information about how the data record was derived, and how to use the data and associated quality flags and estimated uncertainty. This version of the data is v2.33. It fixes an issue that was found with the variable 'lst_unc_time_correction' in the previous v2.23, but is otherwise identical.
publication_date 2023-01-26T16:13:34
uuid a7e811fe11d34df5abac6f18c920bbeb
catalog_url https://catalogue.ceda.ac.uk/uuid/a7e811fe11d34df5abac6f18c920bbeb
sensor_id multi-sensor
platform_id multi-platform
cci_project LST