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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
Projects
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
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
316457
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 [Dataset]. NASA Land Processes Distributed Active Archive Center. https://doi.org/10.5067/MODIS/MYD15A2H.061 Date Accessed: 2026-06-15

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
Ubiquity and Causes of Soil Water Preferential Flow Across 17 Ecoregions Li, Bonan, Sprenger, Matthias, Wyatt, Briana M., Gimenez, Daniel, Hirmas, Daniel R., Ajami, Hoori, Wiekenkamp, Inge, Groh, Jannis, Nimmo, John R., Amato, Matthew T., Singh, Nitin K., Crompton, Octavia, Araki, Ryoko, Xu, Tianfang, Sullivan, Pamela L. Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Evapotranspiration, Photosynthesis, Primary Production, Latent Heat Flux, Vegetation Productivity
Water table-driven divergent patterns and drivers of particulate and mineral-associated organic carbon in alpine peatlands Zheng, Han, Liu, Mengjie, Chu, Houkun, Gaffney, Paul P.J., Pan, Junxiao, Wang, Quan-Cheng, Li, Yang, Tian, Dashuan, Zhang, Ruiyang, Zhou, Ronglei, Liu, Ning, Wu, Fei, Hu, Jian, Ma, Lei, Niu, Shuli, Wang, Jinsong Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Vegetation structure and phenology primarily shape the spatiotemporal pattern of ecosystem respiration Zhao, Cenliang, Zhu, Wenquan Precipitation Amount, Alpine/Tundra, Biomass, Forests, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Vegetation Cover, Permafrost, NET ECOSYSTEM CO2 EXCHANGE (NEE), Soil Depth, Soil Moisture/Water Content, Soil Respiration, Gross Primary Production (gpp), Snow Depth, Atmospheric Carbon Dioxide, Surface Temperature, Land Surface Temperature, Emissivity, Leaf Characteristics, Photosynthetically Active Radiation, Reflectance, Anisotropy
Underappreciated contributions of biogenic volatile organic compounds from urban green spaces to ozone pollution Wang, Haofan, Li, Yuejin, Liu, Yiming, Lu, Xiao, Zhang, Yang, Fan, Qi, Shen, Chong, Lai, Senchao, Zhou, Yan, Zhang, Tao, Yue, Dingli Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Land Use/Land Cover Classification, Leaf Characteristics, Photosynthetically Active Radiation
What Impact Does Net Zero Action on Road Transport and Building Heating Assareh, Nosha, Beddows, Andrew, Stewart, Gregor, Holland, Mike, Fecht, Daniela, Walton, Heather, Evangelopoulos, Dimitris, Wood, Dylan, Vu, Tuan, Dajnak, David, Brand, Christian, Beevers, Sean David Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Characteristics, Photosynthetically Active Radiation
Winter wheat yield estimation based on multisource remote sensing data: A dual-branch TCN-Transformer model and analysis of growth-stage feature transition mechanisms Zhang, Lei, Li, Changchun, Zhang, Guangsheng, Wu, Xifang, Zhou, Longfei, Chen, Lulu, Jiao, Yinghua, Liu, Guodong, Hei, Wenyan 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)
Wildfire probability assessment and analysis based on multi-source data Xu, Kun, Pan, Xin, Tansey, Kevin, Abdulla, Akram, Guluzade, Rufat, Yang, Zi, He, Min, Zhu, Congbao, Yang, Shile, Yang, Yingbao Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Land Use/Land Cover Classification, Leaf Characteristics, Photosynthetically Active Radiation
A multi-variable calibration framework at the grid scale for integrating streamflow with evapotranspiration data to improve the simulation of distributed hydrological model Guo, Xiao, Wu, Zhiyong, Fu, Guobin, He, Hai Land Use/Land Cover Classification, Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Carbon restoration potential on global land under water resource constraints Peng, Shouzhang, Terrer, Cesar, Smith, Benjamin, Ciais, Philippe, Han, Qinggong, Nan, Jialan, Fisher, Joshua B., Chen, Liang, Deng, Lei, Yu, Kailiang Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Characteristics, Photosynthetically Active Radiation, Evapotranspiration, Latent Heat Flux
Assimilation of remotely sensed leaf area index for improving land surface simulation performance at a global scale Ling, Xiaolu, Gao, Jian, Tang, Zeyu, Liu, Wenhao Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Clumped Isotopes Record a Glacial-Interglacial Shift in Seasonality of Hudson, Adam M., Kelson, Julia R., Paces, James B., Ruleman, Chester A., Huntington, Katharine W., Schauer, Andrew J. Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Hybrid hydrological modeling for large alpine basins: a semi-distributed approach Li, Bu, Sun, Ting, Tian, Fuqiang, Tudaji, Mahmut, Qin, Li, Ni, Guangheng Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Leaf Characteristics, Photosynthetically Active Radiation
Effect of the reference rural landscape on annual variations in surface Peng, Weidong, Yang, Xiaoshan, Chen, Sophia Shuang RADAR IMAGERY, Terrain Elevation, Topographical Relief Maps, Digital Elevation/Terrain Model (DEM), Land Use/Land Cover Classification, Reflectance, Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Continuity between NASA MODIS Collection 6.1 and VIIRS Collection 2 land Roman, Miguel O., Justice, Chris, Paynter, Ian, Boucher, Peter B., Devadiga, Sadashiva, Endsley, Arthur, Erb, Angela, Friedl, Mark, Gao, Huilin, Giglio, Louis, Gray, Josh M., Hall, Dorothy, Hulley, Glynn, Kimball, John, Knyazikhin, Yuri, Lyapustin, Alexei, Myneni, Ranga B., Noojipady, Praveen, Pu, Jiabin, Riggs, George, Sarkar, Sudipta, Schaaf, Crystal, Shah, Deep, Tran, Khuong H., Vermote, Eric, Wang, Dongdong, Wang, Zhuosen, Wu, Aisheng, Ye, Yongchang, Shen, Yu, Zhang, Shuai, Zhang, Shuai, Zhang, Xiaoyang, Zhao, Maosheng, Davidson, Carol, Wolfe, Robert Plant Phenology, Enhanced Vegetation Index (EVI), Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Reinforce lake water balance components estimations by integrating water isotope compositions with a hydrological model Mahmoodi, Nariman, Hwang, Hyoun-Tae, Struck, Ulrich, Schneider, Michael, Merz, Christoph Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Characteristics, Photosynthetically Active Radiation
The global distribution and drivers of wood density and their impact on Mo, Lidong, Crowther, Thomas W., Maynard, Daniel S., van den Hoogen, Johan, Ma, Haozhi, Bialic-Murphy, Lalasia, Liang, Jingjing, de-Miguel, Sergio, Nabuurs, Gert-Jan, Reich, Peter B., Phillips, Oliver L., Abegg, Meinrad, Adou Yao, Yves C., Alberti, Giorgio, Almeyda Zambrano, Angelica M., Alvarado, Braulio Vilchez, Alvarez-Davila, Esteban, Alvarez-Loayza, Patricia, Alves, Luciana F., Amaral, Ieda, Ammer, Christian, Anton-Fernandez, Clara, Araujo-Murakami, Alejandro, Arroyo, Luzmila, Avitabile, Valerio, Aymard, Gerardo A., Baker, Timothy R., Baazy, Radomir, Banki, Olaf, Barroso, Jorcely G., Bastian, Meredith L., Bastin, Jean-Francois, Birigazzi, Luca, Birnbaum, Philippe, Bitariho, Robert, Boeckx, Pascal, Bongers, Frans, Boonman, Coline C. F., Bouriaud, Olivier, Brancalion, Pedro H. S., Brandl, Susanne, Brearley, Francis Q., Brienen, Roel, Broadbent, Eben N., Bruelheide, Helge, Bussotti, Filippo, Gatti, Roberto Cazzolla, Cesar, Ricardo G., Cesljar, Goran, Chazdon, Robin, Chen, Han Y. H., Chisholm, Chelsea, Cho, Hyunkook, Cienciala, Emil, Clark, Connie, Clark, David, Colletta, Gabriel D., Coomes, David A., Valverde, Fernando Cornejo, Corral-Rivas, Jose J., Crim, Philip M., Cumming, Jonathan R., Dayanandan, Selvadurai, de Gasper, Andre L., Decuyper, Mathieu, Derroire, Geraldine, DeVries, Ben, Djordjevic, Ilija, Dolezal, Jiri, Dourdain, Aurelie, Engone Obiang, Nestor Laurier, Enquist, Brian J., Eyre, Teresa J., Fandohan, Adande Belarmain, Fayle, Tom M., Feldpausch, Ted R., Ferreira, Leandro V., Finer, Leena, Fischer, Markus, Fletcher, Christine, Frizzera, Lorenzo, Gamarra, Javier G. P., Gianelle, Damiano, Glick, Henry B., Harris, David J., Hector, Andrew, Hemp, Andreas, Hengeveld, Geerten, Herault, Bruno, Herbohn, John L., Herold, Martin, Hietz, Peter, Hillers, Annika, Honorio Coronado, Euridice N., Hui, Cang, Ibanez, Thomas, Imai, Nobuo, Jagodzinski, Andrzej M., Jaroszewicz, Bogdan, Johannsen, Vivian Kvist, Joly, Carlos A., Jucker, Tommaso, Jung, Ilbin, Karminov, Viktor, Kartawinata, Kuswata, Kearsley, Elizabeth, Kenfack, David, Kennard, Deborah K., Kepfer-Rojas, Sebastian, Keppel, Gunnar, Khan, Mohammed Latif, Killeen, Timothy J., Kim, Hyun Seok, Kitayama, Kanehiro, Kohl, Michael, Korjus, Henn, Kraxner, Florian, Kucher, Dmitry, Laarmann, Diana, Lang, Mait, Lewis, Simon L., Li, Yuanzhi, Lopez-Gonzalez, Gabriela, Lu, Huicui, Lukina, Natalia V., Maitner, Brian S., Malhi, Yadvinder, Marcon, Eric, Marimon, Beatriz Schwantes, Marimon-Junior, Ben Hur, Marshall, Andrew R., Martin, Emanuel H., McCarthy, James K., Meave, Jorge A., Melo-Cruz, Omar, Mendoza, Casimiro, Mendoza-Polo, Irina, Miscicki, Stanislaw, Merow, Cory, Mendoza, Abel Monteagudo, Moreno, Vanessa S., Mukul, Sharif A., Mundhenk, Philip, Nava-Miranda, Maria Guadalupe, Neill, David, Neldner, Victor J., Nevenic, Radovan V., Ngugi, Michael R., Niklaus, Pascal A., Ontikov, Petr, Ortiz-Malavasi, Edgar, Pan, Yude, Paquette, Alain, Parada-Gutierrez, Alexander, Parfenova, Elena I., Park, Minjee, Parren, Marc, Parthasarathy, Narayanaswamy, Peri, Pablo L., Pfautsch, Sebastian, Picard, Nicolas, Piedade, Maria Teresa F., Piotto, Daniel, Pitman, Nigel C. A., Poorter, Lourens, Poulsen, Axel Dalberg, Poulsen, John R., Pretzsch, Hans, Arevalo, Freddy Ramirez, Restrepo-Correa, Zorayda, Richardson, Sarah J., Rodeghiero, Mirco, Rolim, Samir G., Roopsind, Anand, Rovero, Francesco, Rutishauser, Ervan, Saikia, Purabi, Salas-Eljatib, Christian, Saner, Philippe, Schall, Peter, Schelhaas, Mart-Jan, Schepaschenko, Dmitry, Scherer-Lorenzen, Michael, Schmid, Bernhard, Schongart, Jochen, Searle, Eric B., Seben, Vladimir, Serra-Diaz, Josep M., Sheil, Douglas, Shvidenko, Anatoly Z., Da Silva, Ana Carolina, Silva-Espejo, Javier E., Silveira, Marcos, Singh, James, Sist, Plinio, Slik, Ferry, Sonke, Bonaventure, Sosinski, Enio Egon, Souza, Alexandre F., Sterenczak, Krzysztof J., Svenning, Jens-Christian, Svoboda, Miroslav, Swanepoel, Ben, Targhetta, Natalia, Tchebakova, Nadja, ter Steege, Hans, Thomas, Raquel, Tikhonova, Elena, Umunay, Peter M., Usoltsev, Vladimir A., Valencia, Renato, Valladares, Fernando, Van Bodegom, Peter M., van der Plas, Fons, Van Do, Tran, van Nuland, Michael E., Vasquez, Rodolfo M., Verbeeck, Hans, Viana, Helder, Vibrans, Alexander C., Vieira, Simone, von Gadow, Klaus, Wang, Hua-Feng, Watson, James V., Werner, Gijsbert D. A., Wittmann, Florian, Woell, Hannsjoerg, Wortel, Verginia, Zagt, Roderick, Zawia-Niedzwiecki, Tomasz, Zhang, Chunyu, Zhao, Xiuhai, Zhou, Mo, Zhu, Zhi-Xin, Zo-Bi, Irie C., Zohner, Constantin M. Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Characteristics, Photosynthetically Active Radiation, Fire Occurrence, Surface Thermal Properties, Land Surface Temperature, THERMAL ANOMALIES
Spatiotemporal dynamics and underlying mechanisms of ecosystem respiration in rubber plantations: a case study in Hainan Island An, Yinghe, Wu, Zhixiang, Wang, Yichen, Zhang, Runqing, Wu, Lan, Liu, Wenjie, Wang, Peng, 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)
Dynamic emergent leaf area in tidal wetlands: Implications for satellite-derived regional and global blue carbon estimates Hawman, Peter A., Mishra, Deepak R., O'Connell, Jessica L. Geopotential Height, Altitude, Surface Temperature, Skin Temperature, Upper Air Temperature, Dew Point Temperature, Air Temperature, Cloud Top Temperature, Atmospheric Winds, Surface Winds, U/V Wind Components, Upper Level Winds, U/V Wind Components, Vertical Wind Velocity/Speed, Atmospheric Pressure, Sea Level Pressure, Cloud Top Pressure, Sea Level Pressure, Surface Pressure, Specific Humidity, Total Precipitable Water, Cloud Liquid Water/Ice, Atmospheric Water Vapor, Atmospheric Ozone, Oxygen Compounds, Boundary Layer Winds, Total Ozone, Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Amplified drought trends in Nepal increase the potential for Himalayan wildfires Pokharel, Binod, Sharma, Shankar, Stuivenvolt-Allen, Jacob, Wang, Shih-Yu Simon, LaPlante, Matthew, Gillies, Robert R., Khanal, Sujan, Wehner, Michael, Rhoades, Alan, Hamal, Kalpana, Hatchett, Benjamin, Liu, Wan-Yu, Mukherjee, Sarbajit, Aryal, Deepak Fire Occurrence, Surface Thermal Properties, Land Surface Temperature, THERMAL ANOMALIES, Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Large discrepancies among remote sensing indices for characterizing vegetation growth dynamics in Nepal Zhou, Decheng, Zhang, Liangxia, Hao, Lu, Sun, Ge, Xiao, Jingfeng, Li, Xing 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), Photosynthesis, Primary Production, Vegetation Productivity, Terrain Elevation, RADAR IMAGERY, Topographical Relief Maps, Reflectance, Anisotropy
Modeling Large River Basins and Flood Plains with Scarce Data: Development of the Large Basin Data Portal Abu-Saymeh, Riham K., Godrej, Adil, Alexander, Kathleen A. Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Towards a universal evapotranspiration model based on optimality principles Tan, Shen, Wang, Han, Prentice, Iain. Colin, Yang, Kun, Nobrega, Rodolfo. L.B., Liu, Xiaomang, Wang, Yong, Yang, Yuting Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Warming inhibits increases in vegetation net primary productivity despite greening in India Das, Ripan, Chaturvedi, Rajiv Kumar, Roy, Adrija, Karmakar, Subhankar, Ghosh, Subimal Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity, Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
An exploration of solar-induced chlorophyll fluorescence (SIF) factors simulated by SCOPE for capturing GPP across vegetation types Yang, Songxi, Yang, Jian, Shi, Shuo, Song, Shalei, Zhang, Yangyang, Luo, Yi, Du, Lin Reflectance, Anisotropy, Heat Flux, Air Temperature, Skin Temperature, Specific Humidity, Water Vapor, Precipitation Rate, Snow/Ice, Evaporation, Latent Heat Flux, Latent Heat Flux, Sensible Heat Flux, Diffusion, Surface Winds, Wind Speed, U/V Wind Components, Wind Stress, Wind Stress, Surface Roughness, Planetary Boundary Layer Height, Ice Fraction, Geopotential Height, Atmospheric Ozone, Pressure Thickness, Sea Level Pressure, Surface Pressure, Upper Air Temperature, Atmospheric Water Vapor, Cloud Liquid Water/Ice, Cloud Fraction, U/V Wind Components, Ozone Profiles, Photosynthesis, Primary Production, Vegetation Productivity, Atmospheric Radiation, Longwave Radiation, Shortwave Radiation, Radiative Flux, Radiative Forcing, Surface Radiative Properties, Albedo, Emissivity, Cloud Properties, Cloud Optical Depth/Thickness, Skin Temperature, Sea Surface Skin Temperature, Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Improving SnowProcess Modeling by Evaluating Reanalysis Vertical Temperature Profiles Using a Distributed Hydrological Model Moiz, Abdul, Wei, Zhongwang, Naseer, Asif, Kawasaki, Akiyuki, Acierto, Ralph Allen, Koike, Toshio Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
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