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| EDG Data Set Name | Granule Shortname |
|---|---|
| MODIS/Terra Land Surface Temperature/Emissivity Daily L3 Global 0.05Deg CMG | MOD11C1 |
| Version | Acquisition Range | Science Quality Status |
|---|---|---|
| V004 | February 24, 2000 (2000055) | Validated Stage 1 as of June 1, 2000 by virtue of MOD11B1 |
Data Set Characteristics
Area = Global
Image Dimensions= 2 (3600 X 7200 row/column)
Average File Size = ~440 MB
Resolution = 0.05 degrees (~5.6 km at the Equator)
Projection = Latitude/Longitude Grid
Land Surface Temperature (LST) Data Type = 16-bit unsigned integer
Emissivity Data Type = 8-bit unsigned integer
Data Format = HDF-EOS
Science Data Sets (SDS) = 15
Product Description
The MODerate-resolution Imaging Spectroradiometer (MODIS) Land Surface Temperature and Emissivity (LST/E) products provide per-pixel temperature and emissivity values. Averaged temperatures are extracted in Kelvin with a day/night LST algorithm applied to a pair of MODIS daytime and nighttime observations. This method yields 1 K accuracy for materials with known emissivities, and view angle information is included in each LST/E product. Emissivities in bands 20, 22, 23, 29, and 31-32 are estimates derived from applying algorithm output to database information. The LST/E algorithms use MODIS data as input, including geolocation, radiance, cloud masking, atmospheric temperature, water vapor, snow, and land cover.
The MODIS/Terra Land Surface Temperature/Emissivity Daily L3 Global 0.05Deg CMG product, MOD11C1, provides temperature and emissivity values on a 0.05 degree latitude/longitude climate modeling grid (CMG). After removing cloudy pixels, the LST/E values from the 5km daily product, MOD11B1, are reprojected to CMG and averaged. The removal of cloud-contaminated daytime and nighttime LSTs is executed as a double-screen scheme, which is described in "Validation of the land-surface temperature products retrieved from Terra Moderate Resolution Imaging Spectroradiometer data," by Z. Wan, Y. Zhang, Q. Zhang, and Z.-L. Li, in Remote Sens. Environ., 83, 163-180 (2002).
The false-colored MOD11C1 image shown was retrieved from MODIS data of May 19, 2003. MODIS temperature products 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 start 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.
NOTE: This product is still experimental in nature upon its initial release. More investigations are underway to assess the scientific quality.
| SDS | UNITS | DATA TYPE -bit | FILL VALUE | VALID RANGE | Multiply by SCALE FACTOR |
Add ADDITIONAL OFFSET |
|---|---|---|---|---|---|---|
| Daily daytime 3min CMG Land-surface Temperature | Kelvin | 16-bit unsigned integer | 0 | 7500 - 65535 | 0.0200 | na |
| *Quality control for daytime LST and emissivity | na | 8-bit unsigned integer | 0 | 0 - 255 | na | na |
| Time of daytime LST observation (UTC) | Hrs | 8-bit unsigned integer | 0 | 0 - 120 | 0.2000 | na |
| View zenith angle of daytime Land-surface Temperature | Degree | 8-bit unsigned integer | 255 | 0 - 130 | 1.0000 | -65.00 |
| Daily nighttime 3min CMG Land-surface Temperature | Kelvin | 16-bit unsigned integer | 0 | 7500 - 65535 | 0.0200 | na |
| *Quality control for nighttime LST and emissivity | na | 8-bit unsigned integer | 0 | 0 - 255 | na | na |
| Time of nighttime LST observation (UTC) | Hrs | 8-bit unsigned integer | 0 | 1 - 120 | 0.2000 | na |
| View zenith angle of nighttime Land-surface Temperature | Degree | 8-bit unsigned integer | 255 | 0 - 130 | 1.0000 | -65.00 |
| Band 20 emissivity | na | 8-bit unsigned integer | 0 | 1 - 255 | 0.0020 | 0.49 |
| Band 22 emissivity | na | 8-bit unsigned integer | 0 | 1 - 255 | 0.0020 | 0.49 |
| Band 23 emissivity | na | 8-bit unsigned integer | 0 | 1 - 255 | 0.0020 | 0.49 |
| Band 29 emissivity | na | 8-bit unsigned integer | 0 | 1 - 255 | 0.0020 | 0.49 |
| Band 31 emissivity | na | 8-bit unsigned integer | 0 | 1 - 255 | 0.0020 | 0.49 |
| Band 32 emissivity | na | 8-bit unsigned integer | 0 | 1 - 255 | 0.0020 | 0.49 |
| *Quality control for retrieved emissivities | na | 8-bit unsigned integer | 0 | 0 - 255 | na | na |
*MODIS Land Surface Temperature/Emissivity QA Science Data Sets
View a Version Formatted for Printing
Retrieve the MOD11C1v4 MODIS product through the LP DAAC Data Pool
Via Search Tool: http://e4eil01u.ecs.nasa.gov:22000/WebAccess/drill?attrib=esdt&esdt=MOD11C1.4&group=MOLT
Via FTP Directory: ftp://e4ftl01u.ecs.nasa.gov/MOLT/MOD11C1.004/
Order These Data through the EOS Data Gateway
MODIS/TERRA LAND SURFACE TEMPERATURE/EMISSIVITY DAILY L3 GLOBAL 0.05DEG CMG V004
EOS Data Gateway Search Tips
| Data Center: | LPDAAC |
|---|---|
| Sensor: | MODIS |
| Dataset: | MODIS/Terra Land Surface Temperature/Emissivity Daily L3 Global 0.05Deg CMG |
| Spatial: | HORIZONTALTILENUMBER Max/Min VERTICALTILENUMBER Max/Min |
| Geographic Extent: | Global |
| Temporal Extent: | 2000-06-01 to present |
Product Information
Contact Information
|
LP DAAC User Services U.S. Geological Survey (USGS) Earth Resources Observation and Science Center (EROS) 47914 252nd Street Sioux Falls, SD 57198-0001 |
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|---|---|
| Phone: | 605-594-6116 |
| Toll Free: | 866-573-3222 |
| 866-LPE-DAAC | |
| Fax: | 605-594-6963 |
| Email: | LPDAAC@eos.nasa.gov |
| Web: | http://LPDAAC.usgs.gov |
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