Global daytime LST from the LEOLSTCMG30 product during December 2020.
View full-size imageThe NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) LEOLSTCMG30 version 1 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 product will include global LST produced on CMG at monthly timesteps from 2002 to 2020. The MEaSUREs LEOLST product is generated by regridding the monthly LST CMG products from MODIS (MYD21C3.061) and VIIRS (VNP21C3.002).
The product will be 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.
| Characteristic | Description |
|---|---|
| Collection | MEaSUREs LSTE |
| DOI | 10.5067/MEaSUREs/LSTE/LEOLSTCMG30.001 |
| File Size | ~15 MB |
| Temporal Resolution | Monthly |
| Temporal Extent | 2002-08-01 to 2020-12-31 |
| Spatial Extent | Global |
| Coordinate System | Geographic Latitude and Longitude |
| Datum | World Geodetic System (WGS84) |
| File Format | HDF-EOS5 |
| Geographic Dimensions | Global |
| Characteristic | Description |
|---|---|
| Number of Science Dataset (SDS) Layers | 14 |
| Columns/Rows | Varies |
| Pixel Size | Varies |
| 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 |
Uncertainty information can be found in Section 2.4 of the User Guide.
Users should be aware that in v001 of the Low Earth Orbit Land Surface Temperature Monthly Global Gridded product (LEOLSTCMG30) the nighttime LST error estimates (LST_Night_err_*) in the one degree, half degree, and quarter degree SDS layers were erroneously filled with zero values, and should not be used for any scientific data analyses.