|
| EDG Data Set Name |
Granule Shortname |
| MODIS/Terra+Aqua Nadir BRDF-Adjusted Reflectance 16-Day L3 Global 0.05Deg CMG |
MCD43C3 |
| Version |
Acquisition Range |
Science Quality Status |
| V004 |
July 4 2002 (2002185) |
Validated |
Global Nadir BRDF-Adjusted Reflectance for July 12, 2001.
The color range is from 0-0.2 for all three visible bands. Missing data are white.
Data Set Characteristics
Area = Global
Image Dimensions = 3 (3600x7200x7 row/column/band)
Average File Size = ~460 MB
Resolution = 0.05 degree (~5 km)
Projection = Latitude/Longitude Grid
Data Format = HDF-EOS
Science Data Sets (SDS) = 3
Product Description
The 16-day 0.05 degree global Nadir BRDF-Adjusted Reflectance (NBAR) product
(MCD43C3) is a Level 3 Climate Modeling Grid that provides two measures of nadir surface reflectance: one at the mean solar zenith angle of Terra overpasses during the 16-day period
and the other at the mean solar zenith angle of the Aqua overpasses. These measures are derived averages that are computed from the 16-day 1-km global NBAR
(MCD43B4) product over all land surfaces. The 1-km global NBAR is computed by using the Bi-directional Reflectance Distribution Function (BRDF), which describes the characteristic anisotropy of the land surface. The MODIS BRDF parameters are modeled by inverting multi-date, multi-angular, cloud-free, atmospherically corrected surface reflectance observations acquired by MODIS over a 16-day period.
MCD products are generated using a combination of Terra and Aqua acquisitions to
optimize data quality.
NOTE: These products are validated, meaning that product uncertainties are well defined over a range of representative conditions. Although there may be later improved versions, these data are ready for use in scientific publications.
| SDS |
UNITS |
DATA TYPE -bit |
FILL VALUE |
VALID RANGE |
SCALING FACTOR |
DIMENSIONS |
| Nadir_Reflectance |
Reflectance |
16-bit signed integer |
32767 |
0 - 32766 |
0.0001 |
1D X-Dim
2D Y-Dim
3D#Land Bands |
| *Nadir_Reflectance_Quality |
Concatenated Flags |
32-bit unsigned integer |
4294967295 |
0-4294967294 |
na |
1D X-Dim
2D Y-Dim
3D # QC Words |
*Quality Control Bit Index
| QC Bit Description |
Quality Control Explanation |
| 00-01 Mandatory QA |
0 = Majority processed, good quality |
|
1 = Majority processed, see other QA |
|
2 = Majority not processed due to cloud effects |
|
3 = Majority not processed due to other effects |
| 02 Period used |
0 = 16 days |
|
1 = 32 days |
| 03-05 AM/MISR/PM* |
0 = AM |
|
1 = AM/PM |
|
2 = AM/PM/MISR |
|
3 = AM/MISR |
|
4 = PM |
|
5 = PM/MISR |
|
6 = MISR |
| 06-07 BRDF Quality |
0 = Majority full inversion |
|
1 = Majority magnitude inversion |
|
2 = Majority Bus-in DB parameters (not currently used) |
|
3 = Majority Fill value |
| 08-15 Percent Inputs |
0-100 (percent of the processed finer resolution data contributed to this CMG pixel) |
| 16-23 Percent Snow |
0-100 |
| 24-27 Mean Sun Zenith of Observation |
0 = 0-5 degrees |
|
1 = 5-10 degrees |
|
2 = 10-15 degrees |
|
3 = 15-20 degrees |
|
4 = 20-25 degrees |
|
5 = 25-30 degrees |
|
6 = 30-35 degrees |
|
7 = 35-40 degrees |
|
8 = 40-45 degrees |
|
9 = 45-50 degrees |
|
10 = 50-55 degrees |
|
11 = 55-60 degrees |
|
12 = 60-65 degrees |
|
13 = 65-70 degrees |
|
14 = 70-75 degrees |
|
15 = >75 degrees |
| 28-30 TBD |
|
| 31 QAfill |
|
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 Retrieve the MCD43C3v4 MODIS product through the LP DAAC Data Pool
Via Search Tool: http://e0dps01u.ecs.nasa.gov:22000/OPS/drill?attrib=esdt&esdt;=MCD43C3.4&group;=MOTA
Via FTP Directory: ftp://e0dps01u.ecs.nasa.gov/MOTA/MCD43C3.004/
Order Data through the EOS Data Gateway
( http://edcimswww.cr.usgs.gov/pub/imswelcome/)
EOS Data Gateway Search Tips
| Source: |
Terra or Aqua |
| Sensor: |
MODIS |
| Dataset: |
MODIS/Terra+Aqua Nadir BRDF-Adjusted Reflectance 16-Day L3 Global 0.05Deg CMG |
| Geographic Extent: |
Global |
| Temporal Extent: |
2002-07-04 to present |
Product Information
Contact Information
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