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Description

The MCD43A4 Version 6 data product was decommissioned on July 31, 2023. Users are encouraged to use the MCD43A4 Version 6.1 data product.

The Moderate Resolution Imaging Spectroradiometer (MODIS) MCD43A4 Version 6 Nadir Bidirectional Reflectance Distribution Function (BRDF)-Adjusted Reflectance (NBAR) dataset is produced daily using 16 days of Terra and Aqua MODIS data at 500 meter (m) resolution. The view angle effects are removed from the directional reflectances, resulting in a stable and consistent NBAR product. Data are temporally weighted to the ninth day which is reflected in the Julian date in the file name.

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.

The MCD43A4 provides NBAR and simplified mandatory quality layers for MODIS bands 1 through 7. Essential quality information provided in the corresponding MCD43A2 data file should be consulted when using this product.

Known Issues

  • The incorrect representation of the aerosol quantities (low average high) in the C6 MYD09 and MOD09 surface reflectance products may have impacted downstream products particularly over arid bright surfaces. This (and a few other issues) have been corrected for C6.1. Therefore users should avoid substantive use of the C6 MCD43 products and wait for the C6.1 products. In any event, users are always strongly encouraged to download and use the extensive QA data provided in MCD43A2, in addition to the briefer mandatory QAs provided as part of the MCD43A1, 3, and 4 products.
  • Corrections were implemented in Collection 6.1 reprocessing.
  • For complete information about the MCD43A4 known issues refer to the MODIS Land Quality Assessment website.

Version Description

The following changes and improvements were implemented for inputs to MODIS Version 6 BRDF/Albedo Parameter data products: (1) Observations are weighted to estimate the BRDF/Albedo on the ninth day of the 16-day period, (2) Products utilize the snow status weighted to the ninth day, (3) Enhanced quality at high latitudes achieved through the utilization of all available observations during the acquisition period, (4) Products utilize L2G-lite surface reflectance as input, and (5) In instances where there are insufficient high-quality reflectances, a database containing archetypal BRDF parameters is employed to supplement the observational data and perform a lower-quality magnitude inversion.

Product Summary

Platforms
Terra ,
Aqua
Instruments
MODIS
Projects
TERRA ,
Aqua
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Spatial Resolution
500 Meters x 500 Meters
Spatial Reference System(s)
MODIS Sinusoidal Tiling System
Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2000-02-16 to 2023-02-17
Temporal Resolution
1 Day
Data Partner
Land Processes Distributed Active Archive Center (LP DAAC) ,
School for the Environment, University of Massachusetts, Boston (UMASS-B/SFE) ,
MODIS Adaptive Processing System, Terrestrial Information Systems Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/TISL/MODAPS)
Concept ID
C2763289471-LPCLOUD
Data State
DEPRECATED
Number of Files/Granules
0
Processing Level
3
Published
Updated
Science Keywords
Reflectance ,
Anisotropy

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Schaaf, C., & Wang, Z. (2015). MCD43A4 MODIS/Terra+Aqua BRDF/Albedo Nadir BRDF Adjusted Ref Daily L3 Global - 500m V006 [Dataset]. NASA Land Processes Distributed Active Archive Center. https://doi.org/10.5067/MODIS/MCD43A4.006 Date Accessed: 2026-08-13

File Naming Convention

MCD43A4.A2002272.h16v16.006.2016132202805.hdf

The file name begins with the Product Short Name (MCD43A4) followed by the Julian Date of Acquisition formatted as AYYYYDDD (A2002272), the Tile Identifier which is horizontal tile and vertical tile provided as hXXvYY (h16v16), the Version of the data collection (006), the Julian Date and Time of Production designated as YYYYDDDHHMMSS (2016132202805), and the Data Format (hdf).

Documents

Publications Citing This Dataset

Filters
Title Year Author Topic
GlobalScale Consistency of Spaceborne Vegetation Indices, Chlorophyll Fluorescence, and Photosynthesis Doughty, Russell, Xiao, Xiangming, Kohler, Philipp, Frankenberg, Christian, Qin, Yuanwei, Wu, Xiaocui, Ma, Shuang, Moore, Berrien Reflectance, Anisotropy, Photosynthesis, Primary Production, Vegetation Productivity
Integrating remotely sensed fuel variables into wildfire danger assessment for China Quan, Xingwen, Xie, Qian, He, Binbin, Luo, Kaiwei, Liu, Xiangzhuo Land Use/Land Cover Classification, Reflectance, Anisotropy, Fire Ecology, Biomass Burning, Wildfires, Fire Occurrence, Burned Area
Mind the Gap: Generating Imputations for Satellite Data Collections at Khandelwal, Paahuni, Rammer, Daniel, Pallickara, Shrideep, Pallickara, Sangmi Lee Reflectance, Anisotropy
Local climatic and environmental effects of an onshore wind farm in North China Luo, Lihui, Zhuang, Yanli, Duan, Quntao, Dong, Longxiang, Yu, Ye, Liu, Yonghong, Chen, Keren, Gao, Xiaoqing Reflectance, Anisotropy, Land Surface Temperature, Emissivity, Evapotranspiration, Latent Heat Flux
Live fuel moisture content estimation from MODIS: A deep learning approach Zhu, Liujun, Webb, Geoffrey I., Yebra, Marta, Scortechini, Gianluca, Miller, Lynn, Petitjean, Francois Terrain Elevation, Digital Elevation/Terrain Model (DEM), Topographical Relief Maps, Reflectance, Anisotropy, Albedo, Snow Cover
Is Alaska's YukonKuskokwim Delta Greening or Browning? Resolving Mixed Signals of Tundra Vegetation Dynamics and Drivers in the Maritime Arctic Frost, Gerald V., Bhatt, Uma S., Macander, Matthew J., Hendricks, Amy S., Jorgenson, M. Torre Reflectance, Anisotropy, RIVER/LAKE ICE BREAKUP, River Ice Depth/Extent, Plant Phenological Changes, Snow Depth, Range Changes, Vegetation Species, Rural Areas, Conservation, Vulnerable Populations, Use/Feeding Habitats
Interannual variations of vegetation optical depth are due to both water stress and biomass changes Konings, Alexandra G., Holtzman, Nataniel M., Rao, Krishna, Xu, Liang, Saatchi, Sassan S. Reflectance, Anisotropy, Land Use/Land Cover Classification, Land Surface Temperature, Emissivity
Making Landsat 5, 7 and 8 reflectance consistent using MODIS nadir-BRDF adjusted reflectance as reference Che, Xianghong, Zhang, Hankui K., Liu, Jiping Reflectance, Anisotropy, Albedo
Monitoring tree-crown scale autumn leaf phenology in a temperate forest with an integration of PlanetScope and drone remote sensing observations Wu, Shengbiao, Wang, Jing, Yan, Zhengbing, Song, Guangqin, Chen, Yang, Ma, Qin, Deng, Meifeng, Wu, Yuntao, Zhao, Yingyi, Guo, Zhengfei, Yuan, Zuoqiang, Dai, Guanhua, Xu, Xiangtao, Yang, Xi, Su, Yanjun, Liu, Lingli, Wu, Jin Reflectance, Anisotropy, Albedo
Reanalysis Surface Mass Balance of the Greenland Ice Sheet Along KTransect (20002014) Navari, Mahdi, Margulis, Steven A., Tedesco, Marco, Fettweis, Xavier, van de Wal, Roderik S. W. Reflectance, Anisotropy
Prospects for Long-Term Agriculture in Southern Africa: Emergent Wei, Tiffany M., Barros, Ana P. Aerosol Optical Depth/Thickness, Land Use/Land Cover Classification, Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Air Temperature, Specific Humidity, Evapotranspiration, Wind Speed, Rain, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Cover, Snow Depth, Snow Water Equivalent, Runoff, Reflectance, Anisotropy, Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Albedo, Precipitation, Precipitation Amount, Precipitation Rate, Emissivity
Production of global daily seamless data cubes and quantification of global land cover change from 1985 to 2020 - iMap World 1.0 Liu, Han, Gong, Peng, Wang, Jie, Wang, Xi, Ning, Grant, Xu, Bing Reflectance, Anisotropy
Influence of varying solar zenith angles on land surface phenology derived from vegetation indicesA case study in the harvard forest Li, Yang, Jiao, Ziti, Zhao, Kaiguang, Dong, Yadong, Zhou, Yuyu, Zeng, Yelu, Xu, Haiqing, Zhang, Xiaoning, Hu, Tongxi, Cui, Lei Reflectance, Anisotropy, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Albedo
Land cover composition, climate, and topography drive land surface phenology in a recently burned landscape: An application of machine learning in phenological ... Wang, Jianmin, Zhang, Xiaoyang, Rodman, Kyle Reflectance, Anisotropy, RADAR IMAGERY, Terrain Elevation, Topographical Relief Maps, Digital Elevation/Terrain Model (DEM), Albedo
Modelling wildfire occurrence at regional scale from land use/cover and Vilar, L., Herrera, S., Tafur-Garcia, E., Yebra, M., Martinez-Vega, J., Echavarria, P., Martin, M.P. Reflectance, Anisotropy, Fire Ecology, Biomass Burning, Wildfires, Fire Occurrence, Burned Area
Modeling vegetation water stress over the forest from spaceTemperature vegetation water stress index (TVWSI) Joshi, Rakesh Chandra, Ryu, Dongryeol, Sheridan, Gary J., Lane, Patrick N. J. Land Surface Temperature, Emissivity, Reflectance, Anisotropy
Multisensor fusion of remotely sensed vegetation indices using Johnson, Margaret C, Reich, Brian J, Gray, Josh M Reflectance, Anisotropy
Potential of hotspot solar-induced chlorophyll fluorescence for better tracking terrestrial photosynthesis Hao, Dalei, Asrar, Ghassem R., Zeng, Yelu, Yang, Xi, Li, Xing, Xiao, Jingfeng, Guan, Kaiyu, Wen, Jianguang, Xiao, Qing, Berry, Joseph A., Chen, Min Reflectance, Albedo, Anisotropy, Land Use/Land Cover Classification, Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
STAIR 2.0A generic and automatic algorithm to fuse MODIS, Landsat, and Sentinel-2 to generate 10 m, daily, and cloud-/gap-free surface reflectance product Luo, Yunan, Guan, Kaiyu, Peng, Jian, Wang, Sibo, Huang, Yizhi Reflectance, Anisotropy
Sun-induced fluorescence closely linked to ecosystem transpiration as Maes, Wouter H., Pagan, Brianna R., Martens, Brecht, Gentine, Pierre, Guanter, Luis, Steppe, Kathy, Verhoest, Niko E.C., Dorigo, Wouter, Li, Xing, Xiao, Jingfeng, Miralles, Diego G. Reflectance, Anisotropy
Spatiotemporal characteristics of white mold and impacts on yield in soybean fields in South Dakota Mfuka, Confiance, Byamukama, Emmanuel, Zhang, Xiaoyang Reflectance, Anisotropy
Spatial heterogeneity of climate variation and vegetation response for Arctic and high-elevation regions from 20012018 Wu, Wenjin, Sun, Xiaohui, Epstein, Howard, Xu, Xiyan, Li, Xinwu Reflectance, Anisotropy, Land Surface Temperature, Emissivity
Spatial quantification to examine the effectiveness of payments for Havinga, Ilan, Hein, Lars, Vega-Araya, Mauricio, Languillaume, Antoine Reflectance, Anisotropy, Canopy Characteristics, Evergreen Vegetation, Crown, Deciduous Vegetation, Leaf Characteristics, Vegetation Cover, Land Use/Land Cover Classification
Sensitivity of surface fluxes in the ECMWF land surface model to the remotely sensed leaf area index and root distributionEvaluation with tower flux data Stevens, David, Miranda, Pedro M. A., Orth, Rene, Boussetta, Souhail, Balsamo, Gianpaolo, Dutra, Emanuel Reflectance, Anisotropy, Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Recent global decline of CO2 fertilization effects on vegetation Wang, Songhan, Zhang, Yongguang, Ju, Weimin, Chen, Jing M., Ciais, Philippe, Cescatti, Alessandro, Sardans, Jordi, Janssens, Ivan A., Wu, Mousong, Berry, Joseph A., Campbell, Elliott, Fernandez-Martinez, Marcos, Alkama, Ramdane, Sitch, Stephen, Friedlingstein, Pierre, Smith, William K., Yuan, Wenping, He, Wei, Lombardozzi, Danica, Kautz, Markus, Zhu, Dan, Lienert, Sebastian, Kato, Etsushi, Poulter, Benjamin, Sanders, Tanja G. M., Kruger, Inken, Wang, Rong, Zeng, Ning, Tian, Hanqin, Vuichard, Nicolas, Jain, Atul K., Wiltshire, Andy, Haverd, Vanessa, Goll, Daniel S., Penuelas, Josep Reflectance, Anisotropy, Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
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