How much sunlight the land reflects, no-sky (MODIS, band 2)
What it measures. How much sunlight the land reflects for one specific MODIS color band, under clear-sky (no diffuse light) conditions, mapped daily across the whole globe.
How it's made. Produced daily from 16 days of combined Terra and Aqua MODIS data, modeling the surface's reflectance behavior and outputting one albedo layer per file at about 1-km resolution.
How & where you'd use it. Feeds into climate simulation models that need to know how much sunlight Earth's land surface bounces back.
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 MCD43D43 Version 6.1 Bidirectional Reflectance Distribution Function and Albedo (BRDF/Albedo) Black-Sky Albedo dataset is produced daily using 16 days of Terra and Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) data at 30 arc second (1,000 meter (m)) 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. MCD43D42 through MCD43D61 are the albedo products of the MCD43D BRDF/Albedo product suite. There are 10 black-sky albedo and 10 white-sky albedo layers representing MODIS bands 1 through 7 and the visible, near-infrared (NIR), and shortwave bands. The black-sky albedo (directional hemispherical reflectance) is defined as albedo in the absence of a diffuse component and is a function of solar zenith angle. White-sky albedo (bihemispherical reflectance) is defined as albedo in the absence of a direct component when the diffuse component is isotropic. 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/). MCD43D43 is the black-sky albedo for MODIS band 2. 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="MCD43D43",
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