Combined Aqua & Terra Product: MCD19A3DN
Last update: September 21, 2023
Data Set Short Name:
MCD19A3DN
Data Set Long Name:
MODIS/Terra+Aqua BRDF Model Parameters Daily NRT L3 Global 1km SIN Grid
Platform:
Terra + Aqua
Instrument:
MODIS
Product Description:
The MODIS Near Real Time (NRT) Combined Terra and Aqua Multi-Angle Implementation of Atmospheric Correction (MAIAC) Bidirectional Reflectance Distribution Function (BRDF) Model Parameters gridded Level 3 product (MCD19A3DN) produced every daily at 1 kilometer (km) pixel resolutions.
The MCD19A3DN provides three coefficients (weights) of the RossThick/Li-Sparse (RTLS) BRDF model that can be used to describe the anisotropy of each pixel. The retrievals represent cloud-free and low aerosol conditions.
The MCD19A3DN MAIAC BRDF Model Parameters product contains the following Science Dataset (SDS) layers: RTLS isotropic kernel parameter (Kiso) for bands 1-8, the RTLS volumetric kernel parameter (Kvol) for bands 1-8, RTLS geometric kernel parameter (Kgeo) for bands 1-8, surface albedo for bands 1-8, and the number of days since last update to current day. Three low-resolution browse images are also included showing the BRDF coefficients for the red band: (1) Kiso, (2) Kvol, and (3) Kgeo.
file_naming_convention = MCD19A3DN.AYYYYDDD.hHHvVV.CCC.hdf
- AYYYYDDD = Acquisition Year and Day of Year
- HHMM = Hour and minute of acquisition
- hXXvYY = Sinusoidal Tile Identifier (horizontalXXverticalYY)
- VVV = Collection Version number
- hdf = HDF-EOS (version 4) file format
For additional information consult https://ladsweb.modaps.eosdis.nasa.gov/missions-and-measurements/products/MCD19A3/
And, for OPS and NRT MAIAC data comparison check https://lance.modaps.eosdis.nasa.gov/data/MCD19AxC.php
Production Frequency:
~280 file per day
Spatial Coverage:
Global
Spatial Resolution:
1km
File Size (MB):
~25
Citation:
Lyapustin, A., Wang, Y. (2023). MCD19A1DN MODIS/Terra+Aqua BRDF Model Parameters Daily NRT L3 Global 1km SIN Grid V006 [Data set]. NASA EOSDIS NRT MODAPS. doi: 10.5067/MODIS/MCD19A3DN.NRT.061
Dataset Originator/Creator:
MODIS Land Science Team/MODIS Adaptive Processing System (MODAPS)
Data Authors:
Alexei Lyapustin
Dataset DOI:
https://doi.org/10.5067/MODIS/MCD19A3DN.NRT.061
