Land reflectance ingredient 1, shortwave-infrared band (MODIS, daily)
What it measures. One mathematical ingredient (the isotropic parameter for shortwave-infrared band 6) used to describe how the land surface reflects sunlight from different angles. On its own it is a building-block number, not a finished reflectance or albedo value.
How it's made. A daily, globally gridded Level-3 product computed from 16 days of MODIS data from the Terra and Aqua satellites at about 1 km resolution, with each parameter stored in its own file.
How & where you'd use it. A specialized input that scientists combine with companion parameters to calculate surface reflectance and albedo for climate models; most users access the finished albedo products rather than this single parameter.
What's measured
Coverage & cadence
- Time span2000-02-16 → ongoing
- Measured byTerra (MODIS) · Aqua (MODIS)
- Processing levelLevel 3
- Spatial extent-180, -90, 180, 90
- FormatsHDF-EOS2
- StatusACTIVE
What you can do with it
- Track deforestation, fire scars and land-cover change
- Monitor crop and vegetation health (NDVI/EVI)
- Map how built-up vs. green an area is over time
Official description
The MCD43D16 Version 6.1 Bidirectional Reflectance Distribution Function and Albedo (BRDF/Albedo) Model Parameter dataset is produced daily using 16 days of Terra and Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) data at 30 arc second (1,000 meter) resolution. Data are temporally weighted to the ninth day which is reflected in the Julian date in the file name. This Climate Modeling Grid (CMG) product covers the entire globe for use in climate simulation models. Due to the large file size, each MCD43D product contains just one data layer. Each of the three model parameters (isotropic, volumetric, and geometric) for each of the MODIS bands 1 through 7 and the visible, near-infrared (NIR), and shortwave bands included in [MCD43C1](https://doi.org/10.5067/MODIS/MCD43C1.061) are stored in a separate file as MCD43D01 through MCD43D30. Users are urged to use the band specific quality flags to isolate the highest quality full inversion results for their own science applications as described in the [User Guide](https://www.umb.edu/spectralmass/modis-user-guide-v006-and-v0061/mcd43d-cmg-30-arc-second-products/). MCD43D16 is the BRDF isotropic parameter for MODIS band 6. The isotropic parameter, in conjunction with the volumetric and geometric parameters, is used to derive the BRDF/Albedo values for MODIS band 6. Known Issues * For complete information about known issues please refer to the [MODIS/VIIRS Land Quality Assessment website](https://landweb.modaps.eosdis.nasa.gov/knownissue?sensor=MODIS&sat=TerraAqua&as=61).
Get the data
import earthaccess
earthaccess.login(strategy="netrc") # free Earthdata Login
results = earthaccess.search_data(
short_name="MCD43D16",
version="061",
bounding_box=(-122.5, 37.2, -121.8, 37.9), # your area (W,S,E,N)
temporal=("2024-01-01", "2024-12-31"), # your dates
)
files = earthaccess.open(results) # stream straight from LPCLOUD Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package. Official links
- Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data. GET DATA
- The technical information in the User's Guide enables users to interpret and use the data products. VIEW RELATED INFORMATION
- The ATBD provides physical theory and mathematical procedures for the calculations used to produce the data products. VIEW RELATED INFORMATION
- The File Specification provides a description of the product file including Scientific Data Sets and their attributes. VIEW RELATED INFORMATION
- Validation at stage 4 has been achieved for all MODIS BRDF/Albedo products. VIEW RELATED INFORMATION
- Further details regarding MODIS land product validation for the MCD43 data products are available from the MODIS Land Team Validation site. VIEW RELATED INFORMATION
- The LDOPE Land Product Quality Assessment website provides known issues, maneuvers, and product quality of the land products. VIEW RELATED INFORMATION