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Description

The MYD15A2H Version 6.1 Moderate Resolution Imaging Spectroradiometer (MODIS) combined Leaf Area Index (LAI) and Fraction of Photosynthetically Active Radiation (FPAR) product is an 8-day composite dataset with 500 meter (m) pixel size. The algorithm chooses the "best" pixel available from all the acquisitions of the Aqua sensor from within the 8-day period.

LAI is defined as the one-sided green leaf area per unit ground area in broadleaf canopies and as one-half the total needle surface area per unit ground area in coniferous canopies. FPAR is defined as the fraction of incident photosynthetically active radiation (400-700 nanometers (nm)) absorbed by the green elements of a vegetation canopy.

Science Datasets (SDS) in the Level 4 (L4) MYD15A2H product include LAI, FPAR, two quality layers, and standard deviation for LAI and FPAR. Two low resolution browse images, LAI and FPAR, are also available for each MYD15A2H granule.

Known Issues

Version Description

The following changes and improvements were implemented for inputs to MODIS Version 6.1 LAI/FPAR data products: (1) Version 6.1 Level-1B (L1B) products have been improved by undergoing various calibration changes that include: changes to the response-versus-scan angle (RVS) approach that affects reflectance bands for Aqua and Terra MODIS, corrections to adjust for the optical crosstalk in Terra MODIS infrared (IR) bands, and corrections to the Terra MODIS forward look-up table (LUT) update for the period 2012 – 2017, and (2) A polarization correction has been applied to the L1B Reflective Solar Bands (RSB).

Product Summary

Platforms
Aqua
Instruments
MODIS
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
2002-07-04 to Present
Temporal Resolution
8 Day
Data Partner
Land Processes Distributed Active Archive Center (LP DAAC) ,
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
C2565794061-LPCLOUD
Data State
ACTIVE
Number of Files/Granules
315587
Processing Level
4
Published
Updated
Science Keywords
Leaf Characteristics ,
Photosynthetically Active Radiation ,
Leaf Area Index (LAI) ,
Fraction Of Absorbed Photosynthetically Active Radiation (fapar)

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

Myneni, R., Knyazikhin, Y., & Park, T. (2021). MODIS/Aqua Leaf Area Index/FPAR 8-Day L4 Global 500m SIN Grid V061 [Data set]. NASA Land Processes Distributed Active Archive Center. https://doi.org/10.5067/MODIS/MYD15A2H.061 Date Accessed: 2026-05-27

File Naming Convention

MYD15A2H.A2025209.h16v07.061.2025218035513.hdf

The file name begins with the Product Short Name (MYD15A2H) followed by the Julian Date of Acquisition formatted as AYYYYDDD (A2025209), the Tile Identifier which is horizontal tile and vertical tile provided as hXXvYY (h16v07), the Version of the data collection (061), the Julian Date and Time of Production designated as YYYYDDDHHMMSS (2025218035513), and the Data Format (hdf).

Documents

USER'S GUIDE

ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)

PRODUCT QUALITY ASSESSMENT

SCIENCE DATA PRODUCT VALIDATION

GENERAL DOCUMENTATION

Publications Citing This Dataset

Filters
Title Year Author Topic
Climate Impacts on Forest and Grassland Resilience in China: The Role of Wang, Lifeng, Nian, Da, Yuan, Naiming Photosynthetically Active Radiation, Leaf Area Index (LAI), Leaf Characteristics, Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Photosynthesis, Primary Production, Vegetation Productivity
Co-benefit of forestation on ozone air quality and carbon storage in South China Liu, Zehui, Zhou, Mi, Li, Danyang, Song, Tao, Yue, Xu, Lu, Xiao, Zhao, Yuanhong, Zhang, Lin Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Land Use/Land Cover Classification
CEDAR-GPP: spatiotemporally upscaled estimates of gross primary productivity incorporating CO2 fertilization Kang, Yanghui, Bassiouni, Maoya, Gaber, Max, Lu, Xinchen, Keenan, Trevor F. Photosynthesis, Primary Production, Vegetation Productivity, Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Land Use/Land Cover Classification, Land Surface Temperature, Emissivity, Albedo, Anisotropy, Reflectance, Vegetation Index, Vegetation Cover, Plant Characteristics, Canopy Characteristics, Albedo
Influence of Arctic Conditions on the Diatom Diversity of Islands Within Barinova, Sophia, Gabyshev, Viktor A., Borisov, Boris, Rybnikov, Sviatoslav R. Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Characteristics, Photosynthetically Active Radiation
Magnitude, drivers, and patterns of gross primary productivity of rice Mahbub, Riasad Bin, Reba, Michele L., Runkle, Benjamin R.K. Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Characteristics, Photosynthetically Active Radiation, Reflectance
Mapping global leaf inclination angle (LIA) based on field measurement data Li, Sijia, Fang, Hongliang Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Characteristics, Photosynthetically Active Radiation, Reflectance, Anisotropy
Machine Learning Insights for Fire Impacts on Snow Disappearance Predictability in Northern California Mohanty, Yashnil, Abolafia-Rosenzweig, Ronnie, He, Cenlin, McGrath, Daniel Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Characteristics, Photosynthetically Active Radiation, Snow Melt, Snow Melt
A new roughness parameterization scheme based on vegetation dynamics and Yuan, Yuan, Ma, Yaoming, Yang, Chenyi, Chen, Jinlei, Xiao, Gang, Xu, Min Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Characteristics, Photosynthetically Active Radiation
A novel calibration of global soil roughness effects for SMOS-IC soil Konkathi, Preethi, Li, Xiaojun, Fernandez-Moran, Roberto, Liu, Xiangzhuo, Xing, Zanpin, Frappart, F., Piles, Maria, Karthikeyan, L., Wigneron, Jean-Pierre Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Land Use/Land Cover Classification, Leaf Characteristics, Photosynthetically Active Radiation
A global daily seamless 9 km vegetation optical depth (VOD) product from 2010 to 2021 Hu, Die, Wang, Yuan, Jing, Han, Yue, Linwei, Zhang, Qiang, Fan, Lei, Yuan, Qiangqiang, Shen, Huanfeng, Zhang, Liangpei Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Land Use/Land Cover Classification
From MODIS to Sentinel-2: A Regional Comparative Analysis of Crop-Yield Adriko, Kennedy, Sedona, Rocco, Seguini, Lorenzo, Riedel, Morris, Cavallaro, Gabriele, Paris, Claudia Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Land Surface Temperature, Emissivity
Forest Carbon Modeling Improved Through Hierarchical Assimilation of Zhou, Yu, Williams, Christopher A. Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Characteristics, Photosynthetically Active Radiation, Canopy Characteristics, Evergreen Vegetation, Crown, Deciduous Vegetation, Vegetation Cover, Land Use/Land Cover Classification
Global vegetation production may decrease in this century due to rising atmospheric dryness Lin, Shangrong, Chen, Xiuzhi, Xia, Jiangzhou, Xin, Qinchuan, Fu, Zheng, He, Bin, Liu, Qinhuo, Piao, Shilong, Yuan, Wenping Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Characteristics, Photosynthetically Active Radiation
Habitat Loss and Other Threats to the Survival of Parnassius Stojanovic, Dejan V., Visacki, Vladimir, Ranelovic, Dragana, Ivetic, Jelena, Orlovic, Sasa Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Photosynthesis, Primary Production, Vegetation Productivity, Land Surface Temperature, Emissivity
Beyond simple flash drought detection: An operational index to analyse Cammalleri, Carmelo, Maffei, Samuele, Ceppi, Alessandro F.G., Bavera, Davide, Fioravanti, Guido, Peretti, Mercedes, Spennemann, Pablo C., Toreti, Andrea Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Characteristics, Photosynthetically Active Radiation
Bridging scales and borders on water availability and use in the Owusu, Afua, Akpoti, Komlavi, Leh, Mansoor, Perera, Tharindu, Madushanka, Lahiru, Mekonnen, Kirubel, Tinonetsana, Primrose, Tayebi, Noosha, Escalera-Rodriguez, Ana Cecilia, Fofana, Rafatou, Velpuri, Naga Manohar Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Characteristics, Photosynthetically Active Radiation, Photosynthesis, Primary Production, Vegetation Productivity
Comparative analysis of land-atmosphere interactions across three Hingerl, Luitpold, Bliefernicht, Jan, Guug, Samuel, Sy, Souleymane, Neidl, Frank, Jagdhuber, Thomas, Kunstmann, Harald Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Characteristics, Photosynthetically Active Radiation
Local and downwind precipitation has been boosted by evapotranspiration change-induced moisture recycling in the Chinese Loess Plateau Gao, Chao, Fu, Jinxia, Han, Zhiming, Ji, Wangjia, Zhao, Liu, Wei, Xiaohua, Li, Zhi Photosynthesis, Primary Production, Vegetation Productivity, Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI)
Landscape fire emissions from the 5th version of the Global Fire Emissions Database (GFED5) van der Werf, Guido R., Randerson, James T., van Wees, Dave, Chen, Yang, Giglio, Louis, Hall, Joanne, Roland, Vernooij, Mu, Mingquan, Binte Shahid, Samiha, Barsanti, Kelley C., Yokelson, Robert, Morton, Douglas C. Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Modeling forest and rangeland ecosystem responses to drought across Hyrcanian bioclimatic zones of Iran using GLM and LAI analysis Bazrmanesh, Azade, Soltani, Saeid, Esfahani, Mostafa Tarkesh, Jafari, Reza Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Spatiotemporal dynamics and driving mechanisms of grassland biomass in Wang, Shuai, Ma, Xinshan, Yue, Yan, Zhou, Tao, Yang, Zhihan, Laffitte, Benjamin, Fu, Songyu, Tang, Xiaolu Evapotranspiration, Photosynthesis, Primary Production, Latent Heat Flux, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Characteristics, Photosynthetically Active Radiation, Land Surface Temperature, Emissivity
Spatiotemporal dynamics of carbon sequestration capacity and its determinants in rubber plantation ecosystems of Hainan Island An, Yinghe, Wu, Zhixiang, Zhang, Runqing, Zhang, Xiang, Tan, Zhenghong, Sun, Zhongyi Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Spatiotemporal variability in drivers of grassland degradation and Li, Ting, Li, Sha, Li, Pengfei, Huang, Jing, Wang, Juanle, Ochir, Altansukh, Yang, Meihuan, Wang, Tao, Shun Chan, Faith Ka Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Area Index (LAI), Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Land Surface Temperature, Emissivity, Nitrogen Dioxide, Photosynthetically Active Radiation, Leaf Characteristics, Photosynthesis, Primary Production, Vegetation Productivity
Spatialtemporal heterogeneous analysis of the coupling coordination between new urbanization and urban ecological resilience Xia, Zou, Li, Changyin, Zhang, Fengtai, Yan, Yin, Sun, Jin, Ma, Dalai, Guo, Zuman Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Satellite-Constrained Reanalysis Reveals CO2 Versus Climate Process Bilir, T. Eren, Bloom, A. Anthony, Konings, Alexandra G., Liu, Junjie, Parazoo, Nicholas C., Quetin, Gregory R., Norton, Alexander J., Worden, Matthew A., Levine, Paul A., Ma, Shuang, Braghiere, Renato K., Longo, Marcos, Bowman, Kevin, Saatchi, Sassan, Schimel, David S., Miller, Charles E., OSullivan, Michael, Kang, Yanghui, Pandey, Sudhanshu, Patton, Alex J., Yang, Yan, Liu, Yanlan Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Solar Induced Fluorescence, Chlorophyll, Primary Production
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