Land Surface Temperature (LST) over North America and the Pacific Ocean from the GEOLST4KHR product on May 28, 2002.
View full-size imageThe NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) GEOLST4KHR version 2 swath product provides per-pixel Land Surface Temperature (LST) with a spatial resolution of 4,000 meters (m). The product is produced daily in hourly increments using data acquired from Geostationary Operational Environmental Satellite (GOES) 8 and 10 through 15 satellites for the years 2000–2017. The GEOLST4KHR product provides LST values for both North and South America. The GEOLST4KHR data product utilizes the Modern-Era Retrospective analysis for Research and Applications Version 2 / Radiative Transfer for TIROS Operational Vertical Sounder (MERRA-2/RTTOV) Single-Channel Emissivity-Combined ASTER and MODIS Emissivity over Land (CAMEL) algorithm.
The GEOLST4KHR product provides layers for cloud mask, latitude, longitude, land surface temperature, and land surface temperature error. A low-resolution browse is also available showing land surface temperature as an RGB (red, green, blue) image in JPEG format.
The land surface temperature layer now contains sea surface temperatures, and there have been updates to the cloud mask algorithm.
| Characteristic | Description |
|---|---|
| Collection | MEaSUREs LSTE |
| DOI | 10.5067/MEaSUREs/LSTE/GEOLST4KHR.002 |
| File Size | ~50 MB |
| Temporal Resolution | < Daily |
| Temporal Extent | 2000-04-01 to 2016-12-31 |
| Spatial Extent | North America, South America |
| Coordinate System | None (Swath) |
| Datum | World Geodetic System (WGS84) |
| File Format | HDF-EOS5 |
| Geographic Dimensions | Western Hemisphere |
| Characteristic | Description |
|---|---|
| Number of Science Dataset (SDS) Layers | 5 |
| Columns/Rows | Varies |
| Pixel Size | 4000 m |
| SDS Name | Description | Units | Data Type | Fill Value | No Data Value | Valid Range | Scale Factor |
|---|---|---|---|---|---|---|---|
| cloud | Cloud Mask | N/A | 8-bit unsigned integer | 0 | N/A | 1 to 128 | N/A |
| lat | Latitude | Degree | 32-bit floating point | -999.0 | N/A | -90.0 to 90.0 | N/A |
| lon | Longitude | Degree | 32-bit floating point | -999.0 | N/A | -180.0 to 180.0 | N/A |
| lst | Land Surface Temperature | Kelvin | 16-bit signed integer | 0 | N/A | 7500 to 65535 | 0.02 |
| lst_err | Land Surface Temperature Error | Kelvin | 8-bit signed integer | 0 | N/A | 1 to 255 | 0.04 |
The land surface temperature error layer is stored in an efficient 16-bit signed integer manner and reported in units of Kelvin.
There are no known issues.