LEOLSTCMG30 v002

Low Earth Orbit Land Surface Temperature Monthly Global Gridded


PI: Glynn Hulley

Description

The NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) LEOLSTCMG30 version 2 Climate Modeling Grid (CMG) product provides Land Surface Temperature (LST) derived from the Low Earth Orbit (LEO) satellite data record from the Moderate Resolution Imaging Spectroradiometer (MODIS) and Visible Infrared Imaging Radiometer Suite (VIIRS) instruments as well as LST error estimates for both day and night. The MEaSUREs LEOLST product is generated by regridding the monthly CMG products from Aqua MODIS (MYD21C3) and VIIRS (VNP21C3 and VJ121).

The product is available on 0.25, 0.5, and 1 degree optimized climate grids with well characterized per-pixel uncertainties. A low-resolution browse is also available showing LST as an RGB (red, green, blue) image in PNG format.

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Characteristics

Improvements/Changes from Previous Versions

Corrected an issue with nighttime LST error estimates (LST_Night_err_*) in the one degree, half degree, and quarter degree SDS layers that were erroneously filled with zero values.

Collection and Granule

Collection

Characteristic Description
CollectionMEaSUREs LSTE
DOI10.5067/MEaSUREs/LSTE/LEOLSTCMG30.002
File Size~15 MB
Temporal ResolutionMonthly
Temporal Extent2002-08-01 to Present
Spatial ExtentGlobal
Coordinate SystemGeographic Latitude and Longitude
DatumWorld Geodetic System (WGS84)
File FormatHDF-EOS5
Geographic DimensionsGlobal

Granule

Characteristic Description
Number of Science Dataset (SDS) Layers14
Columns/RowsVaries
Pixel SizeVaries

Layers / Variables

SDS Name Description Units Data Type Fill Value No Data Value Valid Range Scale Factor
LST_Day_ODG One Degree Gridded Daytime Land Surface Temperature Kelvin 16-bit signed integer 0 N/A 7500 to 65535 0.02
LST_Day_err_ODG One Degree Gridded Daytime Land Surface Temperature Error Kelvin 8-bit unsigned integer 0 N/A 1 to 255 0.04
LST_Night_ODG One Degree Gridded Nighttime Land Surface Temperature Kelvin 16-bit signed integer 0 N/A 7500 to 65535 0.02
LST_Night_err_ODG One Degree Gridded Nighttime Land Surface Temperature Error Kelvin 8-bit unsigned integer 0 N/A 1 to 255 0.04
LST_Day_HDG Half Degree Gridded Daytime Land Surface Temperature Kelvin 16-bit signed integer 0 N/A 7500 to 65535 0.02
LST_Day_err_HDG Half Degree Gridded Daytime Land Surface Temperature Error Kelvin 8-bit unsigned integer 0 N/A 1 to 255 0.04
LST_Night_HDG Half Degree Gridded Nighttime Land Surface Temperature Kelvin 16-bit signed integer 0 N/A 7500 to 65535 0.02
LST_Night_err_HDG Half Degree Gridded Nighttime Land Surface Temperature Error Kelvin 8-bit unsigned integer 0 N/A 1 to 255 0.04
LST_Day_QDG Quarter Degree Gridded Daytime Land Surface Temperature Kelvin 16-bit signed integer 0 N/A 7500 to 65535 0.02
LST_Day_err_QDG Quarter Degree Gridded Daytime Land Surface Temperature Error Kelvin 8-bit unsigned integer 0 N/A 1 to 255 0.04
LST_Night_QDG Quarter Degree Gridded Nighttime Land Surface Temperature Kelvin 16-bit signed integer 0 N/A 7500 to 65535 0.02
LST_Night_err_QDG Quarter Degree Gridded Nighttime Land Surface Temperature Error Kelvin 8-bit unsigned integer 0 N/A 1 to 255 0.04
Lat Latitude Degree 32-bit floating point -999 -999 -90 to 90 N/A
Lon Longitude Degree 32-bit floating point -999 -999 -180 to 180 N/A

Product Quality

Uncertainty information can be found in Section 2.4 of the User Guide.

Known Issues

No Known Issues.


About the image

Global daytime LST from the LEOLSTCMG30 product during October 2022.

View full-size image

Documentation

User Guide and Algorithm Theoretical Basis Document (ATBD)

Using the Data

Access Data

Citation

DOI: 10.5067/MEaSUREs/LSTE/LEOLSTCMG30.002