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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
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 [Data set]. NASA Land Processes Distributed Active Archive Center. https://doi.org/10.5067/MODIS/MOD17A3HGF.061 Date Accessed: 2026-05-28

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
Information resources for assessing the environmental potential of geosystems (on the example of the territory of the Yenisei North) Vysotskaya, Anna, Medvedkov, Alexey Photosynthesis, Primary Production, Vegetation Productivity, Evapotranspiration, Latent Heat Flux
7 Parashikuesit gjeografike te demografise fisnore te Shqiperise veriore ne fillim te shekullit 20 Elic M Weitzel Erina Baci Daniel Plekhov Terrain Elevation, Digital Elevation/Terrain Model (DEM), Topographical Relief Maps, Photosynthesis, Primary Production, Vegetation Productivity
Dominant temperate and subalpine Japanese trees have variable Kobayashi, Yuta, Haga, Chihiro, Shinohara, Naoto, Nishizawa, Keita, Mori, Akira S. Photosynthesis, Primary Production, Vegetation Productivity
Climate-sensitive spatial variability of soil organic carbon in multiple forests, Central China Shen, Chenchen, Xiao, Wenfa, Chen, Jizhen, Hua, Lin, Huang, Zhilin 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, Land Surface Temperature, Emissivity, Photosynthesis, Primary Production, Vegetation Productivity, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Particulate Matter, Particulates, Habitat Conversion/Fragmentation, Terrain Elevation, RADAR IMAGERY, Topographical Relief Maps
Changes in Carbon Dioxide Balance Associated with Land Use and Land Crivelari-Costa, Patricia Monique, Lima, Mendelson, La Scala Jr., Newton, Rossi, Fernando Saragosa, Della-Silva, Joao Lucas, Dalagnol, Ricardo, Teodoro, Paulo Eduardo, Teodoro, Larissa Pereira Ribeiro, Oliveira, Gabriel de, Junior, Jose Francisco de Oliveira, Silva Junior, Carlos Antonio da Photosynthesis, Primary Production, Vegetation Productivity
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
MOO-GAPS: A multi-objective optimization model for global animal C. Castonguay, Adam, Polasky, Stephen, H. Holden, Matthew, Herrero, Mario, Chang, Jinfeng, Mason-DCroz, Daniel, Godde, Cecile, Lee, Katie, A. Bryan, Brett, Gerber, James, Game, Edward T., McDonald-Madden, Eve Photosynthesis, Primary Production, Vegetation Productivity
Multifunctional trade-off/synergy relationship of cultivated land in Guangdong: A long time series analysis from 2010 to 2030 Wang, Zijin, Yang, Hao, Hu, Yueming, Peng, Yiping, Liu, Luo, Su, Shaoqing, Wang, Wei, Wu, Jialong Photosynthesis, Primary Production, Vegetation Productivity
Mycorrhizal mycelium as a global carbon pool Hawkins, Heidi-Jayne, Cargill, Rachael I.M., Van Nuland, Michael E., Hagen, Stephen C., Field, Katie J., Sheldrake, Merlin, Soudzilovskaia, Nadejda A., Kiers, E. Toby Photosynthesis, Primary Production, Vegetation Productivity
Neighbourhood landscape context shapes local species richness patterns Li, Lihe, Teng, Shuqing N., Zhang, Yong, Li, Yuxiang, Wang, Haijun, Santana, Joana, Reino, Luis, Abades, Sabastian, Svenning, JensChristian, Xu, Chi Photosynthesis, Primary Production, Vegetation Productivity
Net Primary Productivity Estimation of Terrestrial Ecosystems in China with Regard to Saturation Effects and Its Spatiotemporal Evolutionary Impact Factors Qi, Shuaiyang, Zhang, Huaiqing, Zhang, Meng Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity, Carbon, Cation Exchange Capacity, Organic Matter
Net Primary Productivity Estimation Using a Modified MOD17A3 Model in Liu, Wei, Yuan, Yecheng, Li, Ying, Li, Rui, Jiang, Yuhao Photosynthesis, Primary Production, Vegetation Productivity
Long-term, high-resolution GPP mapping in Qinghai using multi-source Yang, Fangwen, He, Pengfei, Wang, Hui, Hou, Dongjie, Li, Dongliang, Shi, Yuli Photosynthesis, Primary Production, Vegetation Productivity
A ContinentalScale Estimate of Soil Organic Carbon Change at NEON Sites and Their Environmental and Edaphic Controls Hu, Jie, Hartemink, Alfred E., Desai, Ankur R., Townsend, Philip A., Abramoff, Rose Z., Zhu, Zhe, Sihi, Debjani, Huang, Jingyi Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity
Analysis of Spatial and Temporal Variability of Ecosystem Service Values Zhang, Shuai, Wang, Yang, Xu, Wenzhe, Sheng, Ziyi, Zhu, Zhen, Hou, Yifeng Photosynthesis, Primary Production, Vegetation Productivity
Analysis of the Income Enhancement Potential of the Terrestrial Carbon Sink in China Based on Remotely Sensed Data Ying, Jiaying, Jiang, Jiafei, Wang, Huayi, Liu, Yilin, Gong, Wei, Liu, Boming, Han, Ge Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity
Exploring spatial-temporal driving factors for changes in multiple Jiang, Wei, Fu, Bojie, Gao, Guangyao, Lv, Yihe, Wang, Cong, Sun, Siqi, Wang, Kai, Schuler, Stefan, Shu, Zhongguo 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
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
Asymmetric response of primary productivity to precipitation anomalies in Southwest China Dong, Guanyu, Fan, Lei, Fensholt, Rasmus, Frappart, Frederic, Ciais, Philippe, Xiao, Xiangming, Sitch, Stephen, Xing, Zanpin, Yu, Ling, Zhou, Zhilan, Ma, Mingguo, Tong, Xiaowei, Xiao, Qing, Wigneron, Jean-Pierre Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity, Land Surface Temperature, Emissivity
Basin-Scale CO2 Emissions From the East River in South China: Importance Liu, Boyi, Wang, Zifeng, Tian, Mingyang, Yang, Xiankun, Chan, Chun Ngai, Chen, Shuai, Yang, Qianqian, Ran, Lishan Photosynthesis, Primary Production, Vegetation Productivity
Lightning-Ignited Wildfires beyond the Polar Circle Kharuk, Viacheslav I., Dvinskaya, Maria L., Golyukov, Alexey S., Im, Sergei T., Stalmak, Anastasia V. Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity
Modeling fuel moisture dynamics under climate change in Spain's forests Balaguer-Romano, Rodrigo, Diaz-Sierra, Ruben, De Caceres, Miquel, Voltas, Jordi, Boer, Matthias M., Resco de Dios, Victor Photosynthesis, Primary Production, Vegetation Productivity
Spatiotemporal Variation Characteristics and Dynamic Persistence Analysis of Carbon Sources/Sinks in the Yellow River Basin Zhang, Kun, Zhu, Changming, Ma, Xiaodong, Zhang, Xin, Yang, Dehu, Shao, Yakui Photosynthesis, Primary Production, Vegetation Productivity
SpatialTemporal Patterns of Interannual Variability in Planted Forests: NPP Time-Series Analysis on the Loess Plateau Amantai, Nigenare, Meng, Yuanyuan, Song, Shanshan, Li, Zihui, Hou, Bowen, Tang, Zhiyao Photosynthesis, Primary Production, Vegetation Productivity
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