EDG Data Set Name                                                                                                                    Granule Shortname

MODIS/Aqua Land Surface Temperature/Emissivity Daily L3 Global 0.05Deg CMG                              MYD11C1
 

 
Version
Acquisition Range
Science Quality Status
V003
June 2, 2003 (2003153) -  
Provisional


 

 

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 (MYD11C1) 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 (MYD11B1) at 5km equal area grids in the sinusoidal projection.
 

 

Before making reprojection in the production of MYD11C1, 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 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 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 MYD11C1 image shown was retrieved from MODIS data of June 2, 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 (only Fillvalue in V003)
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

 

Order Data through the EOS Data Gateway
(http://edcimswww.cr.usgs.gov/pub/imswelcome/)
 

 

EOS Data Gateway Search Tips
Data Center:
EDC-ECS
Sensor:
MODIS
Dataset:
MODIS/Aqua Land Surface Temperature/Emissivity Daily L3 Global 0.05Deg CMG
Geographic Extent:
Global
Temporal Extent:
2003-06-02 to present

 

Retrieve Data through the LP DAAC Data Pool
(http://edcdaac.usgs.gov/tutorial/datapool.html)
 

 

Product Information

(http://modis-land.gsfc.nasa.gov/products/products.asp?ProdFamID=8)

(http://www.icess.ucsb.edu/modis/LstUsrGuide/usrguide.html)

(http://eospso.gsfc.nasa.gov/eos_homepage/for_scientists/atbd/viewInstrument.php?instrument=MODIS)

(http://modis.gsfc.nasa.gov/data/dataproducts.html)

(http://eospso.gsfc.nasa.gov/eos_homepage/for_scientists/data_products/vol1.php)

 

Contact Information
Phone:
605-594-6116
Toll Free: 
866-573-3222
 
866-LPE-DAAC
Fax:
605-594-6963
Email:Shim
Web:
This site is hosted by the USGS - NASA Distributed Active Archive Center 

Disclaimers, Statements and Accessibility
URL: http://edcdaac.usgs.gov/modis/myd11c1v3.html
Technical Contact:  edc@eos.nasa.gov
Last Update: Monday, 24-Feb-2003 15:13:51 CST
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