|
| 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 |
June 1, 2000 (2000153) - Present |
Validated (stage 1 thru 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
This MODIS Land Surface Temperature and Emissivity (LST/E) daily global product
(MOD11C1) provides temperature and emissivity values at 0.05 degree
latitude/longitude climate model grids (CMG). The temperature and emissivity
values are derived by reprojection and average of the values in the daily MODIS
LST/E product (MOD11B1) at 5km equal area grids in the sinusoidal projection.
Before
making reprojection in the production of MOD11C1, cloud-contaminated daytime
and nighttime LSTs are removed by the double-screen scheme, which is described
in paper titled "Validation of the land-surface temperature products retrieved
from Terra Mode rate Resolution Imaging Spectroradiometer data," by
Z. Wan, Y. Zhang, Q. Zhang, and Z.-L. Li, in Remote Sens. Environ., 83, 163-180
(2002). The temperature 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 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.
The false-colored MOD11C1 image shown was retrieved from MODIS data of May 19, 2003.
It is an example of the MODIS Level 3 LST daily product at 0.05 degree resolution.
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 |
* Quality Control Bit Index
| bit |
Long Name |
Key |
| 00-01 |
Mandatory QA flags |
00=LST produced, good quality, not necessary to examine more detailed QA
01=LST produced, other quality, recommend examination of more detailed QA
10=LST not produced due to cloud effects
11=LST not produced primarily due to reasons other than cloud |
| 02-03 |
Data quality flag |
00=good data quality
01=other quality data
10=LST affected by nearby clouds and/or sub-grid clouds and/or ocean
11=LST screened off |
| 04-05 |
Emis Error flag |
00=average emissivity error <= 0.01
01=average emissivity error <= 0.02
10=average emissivity error <= 0.04
11=average emissivity error > 0.04 |
| 06-07 |
LST Error flag |
00=average LST error <= 1K
01=average LST error <= 2K
10=average LST error <= 3K
11=average LST error > 3K |
Print or save this information in .pdf format
View .pdf version 
Order Data through the EOS Data Gateway
( http://edcimswww.cr.usgs.gov/pub/imswelcome/)
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
|
