Minimize Land Surface Temperature (LST)

The SLSTR LSTs are provided by the SL_2_LST product package in the LST_in.nc file.

 

PRODUCT NAME Land Surface Temperature
PARAMETER ID LST
PRODUCT LEVEL 2
DESCRIPTION Gridded Land Surface Temperature generated on the wide 1 km measurement grid.
PRODUCT PARAMETERS
COVERAGE global
PACKAGING half-orbit
UNITS dimensionless
FORMAT 2-byte integer
APPENDED DATA For each gridded pixel, estimated total uncertainties and exception flags associated with LST.
Same parameters, plus LST values, for each orphan pixel.
FREQUENCY 1 product per orbit
ADDITIONAL INFORMATION
INPUT BANDS channels S7, S8 and S9, i.e. 3.7, 10.85 and 12 ┬Ám
ANCILLARY AND AUXILIARY DATA For each gridded and orphan pixel:
Normalised Difference Vegetation Index (NDVI)
GLOBCOVER surface classification code (noted biome)
Fractional vegetation cover
Total Column Water Vapour
validation status for each biome class.
All Annotation Data sets included in the Level-1B product, associated to the 1 km grid and to the nadir view or to the tie-point grid (except the quality ADS).

 

LST surface classification codes

 

Numeric Code Text Code GlobCover legend
0 Open ocean Open ocean
11 Irrigated cropland Post flooding or irrigated croplands
20 Rain-fed cropland Rainfed croplands
30 Mosaic vegetation Mosaic cropland (50-70%)/vegetation (grassland, shrubland, forest) (20-50%)
40 Broadleaved evergreen forest Closed to open (<15%) broadleave evergreen and/or semi-deciduous forest (>5m)
50 Closed broadleaved deciduous forest Closed (>40%) broadleaved deciduous forest (>5 m)
60 Open broadleaved deciduous forest Open (15-40%) broadleaved deciduous forest (>5 m)
70 Closed needleleaved forest Closed (<40%) needleleaved evergreen forest (<5 m)
90 Open needleaved forest Open (15-40%) needleleaved deciduous or evergreen forest (<5 m)
100 Mixed forest Closed to open (>15%) mixed leave broadleaved and needleleaved forest (<5 m)
110 Mosaic forest Mosaic forest/shrubland (50-70%) / Grassland (20-50%)
120 Mosaic grasslands Mosaic grassland (50-70%) / Forest / Shrubland (20-50%)
130 Shrubland Closed to open (>15%) shrubland (<5m)
140 Grassland Closed to open (>15%) grassland
150 Sparse vegetation Sparse (>15%) vegetation (woody vegetation, shrubs, grassland)
160 Freshwater flooded forest Closed (>40%) broadleaved forest regularly flooded - fresh water
170 Saltwater flooded forest Closed (>40%) broadleaved semi-deciduous and /or evergreen forest regularly flooded - saline water
180 Flooded vegetation Closed to open (>15%) vegetation (grassland, shrubland woody vegetation) on regularly flooded or waterlogged soil - fresh, brackish or saline water
190 Artificial surface Artificial surfaces and associated areas (urban areas > 50%)
200 Bare area Bare areas
210 Water Inland water bodies and coastal water
220 Snow and ice Permanent snow and ice
230 No data No data (burnt areas, clouds...)

LST exception flags

 

Bit Number Text Code Description
0 ISP_absent ISP absent
1 Pixel_absent Pixel absent
2 Not_decompressed Not decompressed
3 No_signal No signal in channel
4 Saturation Saturation in channel
5 Invalid_radiance Derived radiance outside calibration
6 No_parameters Calibration parameters unavailable
7 Unfilled_pixel Unfilled pixel
8 LST_underflow LST underflow
9 LST_overflow LST overflow
10 biome LST could not be calculated for this biome type
11:15   (spare)