Data Set Characteristics:
Area: ~1100 x 1100 km
Dimensions: 200 x 200 rows/columns
File Size: ~0.4 MB compressed
Resolution: 6-kilometer (5.6-km)
Projection: Sinusoidal
LST Data Type: 16-bit unsigned integer
Emissivity Data Type: 8-bit unsigned integer
Data Format: HDF-EOS
Science Data Sets (SDS HDF Layers): 18
The
above false-color image shows the daytime LSTs under clear-sky conditions
in the MOD11B1 product retrieved from MODIS data of 15 March 2007 over
the southwestern United States and Baja California.
Product Description
The level-3 MODIS
global Land Surface Temperature (LST) and Emissivity daily data are
retrieved at 6-kilometer (actual 5.6-km) grids in a Sinusoidally projected
tile by the day/night LST algorithm from pairs of MODIS daytime and
nighttime observations in seven bands under certain conditions.
MOD11B1 is comprised
of the 5.6-km daytime and nighttime LSTs, quality assessment, observation
times, view angles, and emissivities retrieved in Bands 20, 22-23, 29,
and 31-32. MOD11B1 also includes the daytime and nighttime LSTs generated
from the level-2 MOD11_L2 through the
1-km Band 31 radiance values aggregated to 5.6-km grids.
Version-5 MODIS/Terra Land Surface Temperature/Emissivity products
are Validated Stage 1, meaning that accuracy has been estimated using
a small number of independent measurements obtained from selected locations
and time periods and ground-truth/field program efforts. Although there
may be later improved versions, these data are ready for use in scientific
publications.
LP DAAC User Services
U.S. Geological Survey (USGS)
Earth Resources Observation and Science Center (EROS)
47914 252nd Street
Sioux Falls, SD 57198-0001