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EDG Data Set Name
MODIS/Terra Land Surface Temperature/Emissivity Daily L3 Global 5km ISIN Grid
Granule Shortname
MOD11B1
Data Set Characteristics
Area = ~ 10 x 10 lat/long
Size = 240 x 240 rows/columns
File Size = ~2.2MB
Resolution = 5 kilometer
Projection = Integerized Sinusoidal
LST Data Type = 16-bit Integer
Emissivity Data Type = 8-bit Integer
Data Format = HDF-EOS
Science Data Sets (SDS) = 16
Product Description
This MODIS Land Surface Temperature and Emissivity (LST/E) product provides per-grid temperature and emissivity values. Temperatures are extracted in Kelvin with a day/night LST algorithm applied to a pair of MODIS daytime and nighttime observations. This method retrieves the land-surface temperature and emissivities in bands 20, 22, 23, 29, and 31-32, simultaneously. This algorithm uses MODIS data as input, including geolocation, radiance, cloud masking, atmospheric temperature and water vapor. The temperature/emissivity products in turn are key inputs to many of the high level MODIS products and provide data for global temperature mapping and change observation. On land, soil and canopy temperature are among the main determinants of the rate of growth of vegetation and they govern seasonal starting and termination of growth. Hydrologic processes such as evapotranspiration and snow and ice melt are highly sensitive to surface temperature fluctuation, which is also an important discriminating factor in classification of land surface types.
The color images shown above are examples of the MODIS Level 3 LST daily product at 5 km resolution averaged in the period of May 1-8, 2001, in 13 tiles covering USA. The first image is a color composite with histogram-equalization enhanced daytime LST image as red, histogram-equalization enhanced nighttime LST image as green and blue components. The second image is a color composite with histogram-equalization enhanced emissivity images in bands 31, 29, and 20 as red, green, and blue components.
| SDS |
UNITS |
DATA TYPE-bit |
FILL VALUE |
VALID RANGE |
SCALING FACTOR |
ADDITIONAL OFFSET |
| LST_Day_5km |
Kelvin |
Unsigned 16 |
0 |
7500-65535 |
0.0200 |
na |
| QC_Day |
na |
Unsigned 8 |
0 |
0-255 |
na |
na |
| Day_view_time |
Hrs |
Unsigned 8 |
0 |
0-240 |
0.1000 |
na |
| Day_view_angle |
Deg |
Unsigned 8 |
0 |
0-180 |
0.5000 |
na |
| LST_Night_5km |
Kelvin |
Unsigned 16 |
0 |
7500-65535 |
0.0200 |
na |
| QC_Night |
na |
Unsigned 8 |
0 |
0-255 |
na |
na |
| Night_view_time |
Hrs |
Unsigned 8 |
0 |
0-240 |
0.1000 |
na |
| Night_view_angle |
Deg |
Unsigned 8 |
0 |
0-180 |
0.5000 |
na |
| Emissivity Band 20 |
na |
Unsigned 8 |
0 |
1-255 |
0.0020 |
0.4900 |
| Emissivity Band 22 |
na |
Unsigned 8 |
0 |
1-255 |
0.0020 |
0.4900 |
| Emissivity Band 23 |
na |
Unsigned 8 |
0 |
1-255 |
0.0020 |
0.4900 |
| Emissivity Band 29 |
na |
Unsigned 8 |
0 |
1-255 |
0.0020 |
0.4900 |
| Emissivity Band 31 |
na |
Unsigned 8 |
0 |
1-255 |
0.0020 |
0.4900 |
| Emissivity Band 32 |
na |
Unsigned 8 |
0 |
1-255 |
0.0020 |
0.4900 |
| LST_Day_5km_Aggregated_from_1km |
Kelvin |
Unsigned 16 |
0 |
7500-65535 |
0.0200 |
na |
| LST_Night_5km_Aggregated_from_1km |
Kelvin |
Unsigned 16 |
0 |
7500-65535 |
0.0200 |
na |
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EOS Data Gateway Search Tips
| Data Center: |
LPDAAC |
| Sensor: |
MODIS |
| Dataset: |
MODIS/Terra Land Surface Temperature/Emissivity Daily L3 Global 5km ISIN Grid |
| Geographic Extent: |
Type Lat/Long Range or Draw on Map |
| Temporal Extent: |
August 29, 2002 (2002241) - October 7, 2002 (2002280) |
Product Information
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