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Description

The MOD17A3HGF Version 6.1 product provides information about annual Gross and Net Primary Production (GPP and NPP) at 500 meter (m) pixel resolution. Annual Terra Moderate Resolution Imaging Spectroradiometer (MODIS) GPP and NPP is derived from the sum of all 8-day GPP Net Photosynthesis (PSN) products (MOD17A2H) from the given year. The PSN value is the difference of the GPP and the Maintenance Respiration (MR).

The MOD17A3HGF will be generated at the end of each year when the entire yearly 8-day MOD15A2H is available. Hence, the gap-filled MOD17A3HGF is the improved MOD17, which has cleaned the poor-quality inputs from 8-day Leaf Area Index and Fraction of Photosynthetically Active Radiation (LAI/FPAR) based on the Quality Control (QC) label for every pixel. If any LAI/FPAR pixel did not meet the quality screening criteria, its value is determined through linear interpolation. However, users cannot get MOD17A3HGF in near-real time because it will be generated only at the end of a given year.

Known Issues

Version Description

The following changes and improvements were implemented for inputs to the MODIS Version 6.1 NPP data product: (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, (2) A polarization correction has been applied to the L1B Reflective Solar Bands (RSB), and (3) The product uses Climatology Leaf Area Index (LAI) and Fraction of Photosynthetically Active Radiation (FPAR) as back up to the operational LAI/FPAR.

Product Summary

Platforms
Terra
Instruments
MODIS
Projects
TERRA
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
2001-01-01 to Present
Temporal Resolution
1 Year
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
C2565791034-LPCLOUD
Data State
ACTIVE
Number of Files/Granules
7250
Processing Level
4
Published
Updated
Science Keywords
Photosynthesis ,
Primary Production ,
Vegetation Productivity

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

Running, S., & Zhao, M. (2021). MODIS/Terra Net Primary Production Gap-Filled Yearly L4 Global 500m SIN Grid V061 [Dataset]. NASA Land Processes Distributed Active Archive Center. https://doi.org/10.5067/MODIS/MOD17A3HGF.061 Date Accessed: 2026-07-10

File Naming Convention

MOD17A3HGF.A2024001.h17v10.061.2025011052834.hdf

The file name begins with the Product Short Name (MOD17A3HGF) followed by the Julian Date of Acquisition formatted as AYYYYDDD (A2024001), the Tile Identifier which is horizontal tile and vertical tile provided as hXXvYY (h17v10), the Version of the data collection (061), the Julian Date and Time of Production designated as YYYYDDDHHMMSS (2025011052834), 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
Estimation and Climate Impact Analysis of Terrestrial Vegetation Net Primary Productivity in China from 2001 to 2020 Chen, Zhaotong, Chen, Jiangping, Xu, Gang, Sha, Zongyao, Yin, Jianhua, Li, Zijian Photosynthesis, Primary Production, Vegetation Productivity, Biomass Dynamics, Biomass
Estimation of gross primary productivity of Indian Sundarbans mangrove Kumar, Tanumi, Das, Prabir Kumar Photosynthesis, Primary Production, Vegetation Productivity
Herbivory baseline estimates in Spanish protected areas, and Serrano-Zulueta, Ruben, Pardo, Guillermo, Paune, Ferran, del Prado, Agustin, Manzano, Pablo Photosynthesis, Primary Production, Vegetation Productivity
Gridded livestock density database and spatial trends for Kazakhstan Kolluru, Venkatesh, John, Ranjeet, Saraf, Sakshi, Chen, Jiquan, Hankerson, Brett, Robinson, Sarah, Kussainova, Maira, Jain, Khushboo Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity
Habitat heterogeneity determines species richness on small habitat islands in a fragmented landscape Yan, Yongzhi, Jarvie, Scott, Zhang, Qing, Han, Peng, Liu, Qingfu, Zhang, Shuangshuang, Liu, Pengtao Photosynthesis, Primary Production, Vegetation Productivity, Terrain Elevation, RADAR IMAGERY, Topographical Relief Maps
Vegetation drought risk assessment based on the multi-weight methods in Chen, Huixia, Wang, Qianfeng, Bento, Virgilio A., Meng, Xianyong, Li, Xiaohan Photosynthesis, Primary Production, Vegetation Productivity
Wildfires in the Larch Range within Permafrost, Siberia Kharuk, Viacheslav I., Shvetsov, Evgeny G., Buryak, Ludmila V., Golyukov, Alexei S., Dvinskaya, Maria L., Petrov, Ilya A. Photosynthesis, Primary Production, Vegetation Productivity
Linking landscape structure and vegetation productivity with nut consumption by the Cantabrian brown bear during hyperphagia Perez-Giron, Jose Carlos, Diaz-Varela, Emilio Rafael, Alvarez-Alvarez, Pedro, Hernandez Palacios, Orencio, Ballesteros, Fernando, Lopez-Bao, Jose Vicente Photosynthesis, Primary Production, Vegetation Productivity
Impacts of land use changes on net primary productivity in urban agglomerations under multi-scenarios simulation Chen, Yuhan, Wang, Jia, Xiong, Nina, Sun, Lu, Xu, Jiangqi Photosynthesis, Primary Production, Vegetation Productivity
Impacts of livestock grazing on the probability of burning in wildfires vary by region and vegetation type in California Siegel, Katherine J., Macaulay, Luke, Shapero, Matthew, Becchetti, Theresa, Larson, Stephanie, Mashiri, Fadzayi E., Waks, Lulu, Larsen, Laurel, Butsic, Van Photosynthesis, Primary Production, Vegetation Productivity
Integrating aquatic and terrestrial carbon fluxes to assess the net landscape carbon balance of a highly erodible semiarid catchment Ran, Lishan, Wang, Xuhui, Li, Siliang, Zhou, Yuanyuan, Xu, YiJun, Chan, Chun Ngai, Fang, Nufang, Xin, Zhongbao, Shen, Hongxun Photosynthesis, Primary Production, Vegetation Productivity, Soil Respiration, Ecosystem Functions, Soil Respiration
How more sophisticated leaf biomass simulations can increase the realism of modelled animal populations Krause, Jens, Harfoot, Mike, Hoeks, Selwyn, Anthoni, Peter, Brown, Calum, Rounsevell, Mark, Arneth, Almut Photosynthesis, Primary Production, Vegetation Productivity
Human activities have markedly altered the pattern and trend of net Zhang, Fuguang, Zeng, Biao, Cao, Ying, Li, Fang, Tang, Zhengyu, Qi, Jiaguo Photosynthesis, Primary Production, Vegetation Productivity
Increased carbon assimilation and efficient water usage may not Montibeller, Bruno, Marshall, Michael, Mander, Ulo, Uuemaa, Evelyn Photosynthesis, Primary Production, Vegetation Productivity
Identification of Priority Areas for Improving Urban Ecological Carrying Capacity: Based on SupplyDemand Matching of Ecosystem Services Wang, Xueqi, Wang, Shuo, Liu, Gengyuan, Yan, Ningyu, Yang, Qing, Chen, Bin, Bai, Junhong, Zhang, Yan, Lombardi, Ginevra Virginia Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Photosynthesis, Primary Production, Vegetation Productivity
Landscape-scale effects of farmers' restoration decision making and investments in central Malawi: an agent-based modeling approach Djenontin, Ida N. S., Ligmann-Zielinska, Arika, Zulu, Leo C. Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Photosynthesis, Primary Production, Vegetation Productivity
Reflection Restor: Transparency and connectivity for the global Crowther, Thomas W., Thomas, Stephen M., van den Hoogen, Johan, Robmann, Niamh, Chavarria, Alfredo, Cottam, Andrew, Cole, Rebecca, Elliott, Thomas, Clark, Emily, Max, Simeon, Danylo, Olga, Rowe, Clara Photosynthesis, Primary Production, Vegetation Productivity, Evapotranspiration, Latent Heat Flux
Priming effects in soils across Europe Siles, Jose A., DiazLopez, Marta, Vera, Alfonso, Eisenhauer, Nico, Guerra, Carlos A., Smith, Linnea C., Buscot, Francois, Reitz, Thomas, Breitkreuz, Claudia, van den Hoogen, Johan, Crowther, Thomas W., Orgiazzi, Alberto, Kuzyakov, Yakov, DelgadoBaquerizo, Manuel, Bastida, Felipe Photosynthesis, Primary Production, Vegetation Productivity
Monitoring land degradation and assessing its drivers to support sustainable development goal 15.3 in Central Asia Jiang, Liangliang, Bao, Anming, Jiapaer, Guli, Liu, Rui, Yuan, Ye, Yu, Tao Land Surface Temperature, Emissivity, Photosynthesis, Primary Production, Vegetation Productivity, Albedo, Anisotropy, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), RADAR IMAGERY, Terrain Elevation, Digital Elevation/Terrain Model (DEM)
Monitoring ecological and environmental stress patterns over the past two decades in the Mekong River basin Li, Yubin, Schaffer-Smith, Danica, Myint, Soe W., Zhu, Yuanhui Canopy Characteristics, Evergreen Vegetation, Crown, Deciduous Vegetation, Leaf Characteristics, Vegetation Cover, Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
The relative influence of history, climate, topography and vegetation Carrasco, Luis, Giam, Xingli, Sheldon, Kimberly S., Papes, Monica Photosynthesis, Primary Production, Vegetation Productivity
The Great Eurasian Natural Tract as an Object of World Importance Sobolev, N. A., Belonovskaya, E. A., Kobyakov, K. N., Krenke, A. N., Titova, S. V. Photosynthesis, Primary Production, Vegetation Productivity
Simulating the Impacts of Drought and Warming in Summer and Autumn on the Productivity of Subtropical Coniferous Forests Xie, Menglu, Zhu, Yu, Liu, Shuguang, Deng, Deming, Zhu, Liangjun, Zhao, Meifang, Wang, Zhao Photosynthesis, Primary Production, Vegetation Productivity
Spatiotemporal Investigation of Near-Surface CO2 and its Affecting Factors over Asia Mustafa, Farhan, Bu, Lingbing, Wang, Qin, Shahzaman, Muhammad, Bilal, Muhammad, Aslam, Rana Waqar, Dong, Changzhe Photosynthesis, Primary Production, Vegetation Productivity, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI)
What do caribou eat? A review of the literature on caribou diet Webber, Quinn M.R., Ferraro, Kristy M., Hendrix, Jack G., Vander Wal, Eric Photosynthesis, Primary Production, Vegetation Productivity
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