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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: 2026-05-19

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
A Multi-Model Framework Based on Remote Sensing to Assess Land DAcunto, Federica, Dubovyk, Olena, Raghuvanshi, Nikhil, Marinello, Francesco, Iodice, Filippo, Pezzuolo, Andrea Photosynthesis, Primary Production, Vegetation Productivity
A multi-sensor approach allows confident mapping of forest canopy fuel Aragoneses, Elena, Garcia, Mariano, Tang, Hao, Chuvieco, Emilio Canopy Characteristics, Evergreen Vegetation, Crown, Deciduous Vegetation, Leaf Characteristics, Vegetation Cover, Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity, Plant Phenology, Lidar, Topography, Vegetation Height, Digital Elevation/Terrain Model (DEM), LIDAR WAVEFORM
Analysis of Net Primary Productivity Trends in India by Incorporating the Direct Effect of CO2 Fertilization in MODIS Data Das, Ripan, Karmakar, Subhankar, Ghosh, Subimal Land Use/Land Cover Classification, Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Area Index (LAI), Photosynthesis, Primary Production, Vegetation Productivity, Atmospheric Radiation, Longwave Radiation, Shortwave Radiation, Radiative Flux, Radiative Forcing, Surface Radiative Properties, Albedo, Emissivity, Cloud Properties, Cloud Fraction, Cloud Optical Depth/Thickness, Skin Temperature, Skin Temperature, Sea Surface Skin Temperature, Terrain Elevation, Digital Elevation/Terrain Model (DEM), Topographical Relief Maps, Geopotential Height, Altitude, Surface 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
From Drought to Aridification: Land-Cover Fingerprints of a Drying Chile Zambrano, Francisco, Vrieling, Anton, Meza, Francisco, DuranLlacer, Iongel, Fernandez, Francisco, VenegasGonzalez, Alejandro, Raab, Nicolas, Craven, Dylan Land Use/Land Cover Classification, Evapotranspiration, Latent Heat Flux, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Photosynthesis, Primary Production, Vegetation Productivity
Global terrestrial nitrogen fixation and its modification by agriculture Reis Ely, Carla R., Perakis, Steven S., Cleveland, Cory C., Menge, Duncan N. L., Reed, Sasha C., Taylor, Benton N., Batterman, Sarah A., Clark, Christopher M., Crews, Timothy E., Dynarski, Katherine A., Gei, Maga, Gundale, Michael J., Herridge, David F., Jovan, Sarah E., Kou-Giesbrecht, Sian, Peoples, Mark B., Piipponen, Johannes, Rodriguez-Caballero, Emilio, Salmon, Verity G., Soper, Fiona M., Staccone, Anika P., Weber, Bettina, Williams, Christopher A., Wurzburger, Nina Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity
Global urbanization benefits food security and nature restoration Wang, Sitong, Deng, Ouping, Reis, Stefan, Zhu, Yong-Guan, Xu, Jianming, Gu, Baojing Photosynthesis, Primary Production, Vegetation Productivity
Global distribution and predictors of the mineral-associated to total soil organic carbon ratio: an indicator of soil carbon stability Zhao, Jiangjia, Minasny, Budiman, Setia, Raj, Zhou, Zhenghu, Ren, Chengjie, Biswas, Asim, Luo, Zhongkui, Zhou, Lianqing, Shi, Zhou, Chen, Songchao Photosynthesis, Primary Production, Vegetation Productivity
Factors that are strongly causal to NPP Across Diverse Climate Regions in China Liu, Kaizhi, Tian, Lianghui, Wang, Weilin, Meng, Yuanyuan, Duan, Liangxia, Xie, Hongxia Photosynthesis, Primary Production, Vegetation Productivity, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI)
Exploring the relative importance of climatic drivers on carbon sink capacity dynamics in the Three Gorges Reservoir Area, China Zheng, Xin, Fu, Yuanyuan, Wang, Shaoqiang, Wang, Lunche, Xie, Zhijie, Liu, Chang Photosynthesis, Primary Production, Vegetation Productivity
Exploring the effects of climatic and environmental heterogeneity on the spatial activity of Patagonian bats Gimenez, Analia Laura, Grech, Marta Gladys, De Paz, Oscar Photosynthesis, Primary Production, Vegetation Productivity, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Infrared Radiance, Canopy Characteristics, Evergreen Vegetation, Crown, Deciduous Vegetation, Leaf Characteristics, Vegetation Cover, Land Use/Land Cover Classification, Land Surface Temperature, Emissivity, Carbon Monoxide, Tropospheric Ozone, Geopotential Height, Tropopause, Atmospheric Ozone, Surface Pressure, Outgoing Longwave Radiation, Surface Temperature, Air Temperature, Skin Temperature, Upper Air Temperature, Humidity, Layered Precipitable Water, Total Precipitable Water, Water Vapor Profiles, Water Vapor Concentration Profiles, Cloud Liquid Water/Ice, Cloud Fraction, Cloud Height, Cloud Top Pressure, Cloud Top Temperature, Cloud Vertical Distribution, Skin Temperature, Sea Surface Temperature
Assessment of long-term ecological impact in lower Levisa Watershed: A Oli, Dipesh, Gyawali, Buddhi R., Upadhaya, Suraj, Gebremedhin, Maheteme, Zourarakis, Demetrio, Pokharel, Bharat Photosynthesis, Primary Production, Vegetation Productivity, Precipitation Amount, Maximum/Minimum Temperature, Shortwave Radiation, Snow Water Equivalent, Vapor Pressure
Biomass distribution of sympatric mammals in a European temperate forest Pleskalt, Andro, Farias, Sebastiao, Vicedo, Toni, Alvarez-Martinez, Jose Manuel, Roces-Diaz, Jose Valentin, Meloro, Carlo, Pereira, Soraia, Cruz, Antonio, Garcia, Jesus, Gomez, Pablo, Lamillar, Maria Angel, Marsella, Elena, Varas, Manuel Jesus, Alvarez, Elena, Dalerum, Fredrik Photosynthesis, Primary Production, Vegetation Productivity
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
Application of Weakly Interpretable PCA-KNN Framework in Ecological Restoration Engineering Planning Xue, Yuwan, Li, Xiaoping, Li, Hui, Yang, Qiangjun, Zhang, Yan, Yang, Taoli, Yu, Hanwen Photosynthesis, Primary Production, Vegetation Productivity
Collection of thematic maps for the Colombia-Cumbal Indigenous Reserve Biomass, Forests, Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity
Comprehensive increase in release by dryingrewetting cycles among Japanese forests and pastureland soils and exploring predictors of increasing magnitude Suzuki, Yuri, Hiradate, Syuntaro, Koarashi, Jun, Atarashi-Andoh, Mariko, Yomogida, Takumi, Kanda, Yuki, Nagano, Hirohiko Photosynthesis, Primary Production, Vegetation Productivity
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)
Local GDP Estimates Around the World Rossi-Hansberg, Esteban, Zhang, Jialing Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity
Long-term effects of post-earthquake landslides on vegetation ecosystem He, Wen, Di, Baofeng, Wu, Shaolin, Li, Jierui, Zeng, Wen, Zeng, Yajie, Li, Ruowei, Balikuddembe, Joseph Kimuli, Chen, Hongkai, Zhang, Bin, Chen, Gang, Stamatopoulos, Constantine A., Yazgan, Ufuk, Kisekka, Isaya Photosynthesis, Primary Production, Vegetation Productivity
Linking wildlife conservation with Nature's Contributions to People: The Dobelmann, Svenja, Thiel, Michael, Kleemann, Janina Photosynthesis, Primary Production, Vegetation Productivity
Land quality degradation exacerbates the impact of drought on vegetation in Northeast China Gao, Shenghang, Huang, Shengzhi, Guo, Hui, Yan, Haokui, Zhang, Lin, Li, Yifei, Guo, Wenwen, Zhu, Xueying, Ling, Hongbo, Ma, Ling, Tao, Wanghai, Leng, Guoyong, Huang, Qiang Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI)
The impact of different watersalt gradients on the health and growth of Populus euphratica in the oases of the Taklamakan Desert's interior Li, Dinghao, Liu, Yulong, Wan, Yanbo, Shi, Qingdong Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Photosynthesis, Primary Production, Vegetation Productivity
The Earth's Terrestrial Biodiversity Hotspots in Land Use Debt Mindje Kayumba, Patient, Chen, Yaning, Zhi, Li, Mind'je, Richard, Ali, Sikandar Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI)
Spatiotemporal Characteristics of Carbon Emissions in the Pearl River Xia, Lei, Ren, Changxu, Li, Shuhao, Yang, Weijia, Yang, Yongling, Li, Jie, Fan, Wenxuan, Liu, Rui Fire Ecology, Biomass Burning, Wildfires, Fire Occurrence, Burned Area, Photosynthesis, Primary Production, Vegetation Productivity, Carbonaceous Aerosols, Nitrogen Oxides, Particulates, Hydrogen Cyanide, Emissions, Non-methane Hydrocarbons/Volatile Organic Compounds, Particulate Matter, Nitrogen Oxides, Sulfur Dioxide, Carbon And Hydrocarbon Compounds, Fire Dynamics, Surface Radiative Properties, Land Surface Temperature
Spatiotemporal Drivers of Urban Vegetation Carbon Sequestration in the Yangtze River Delta Urban Agglomeration: A Remote Sensing-Based GWR-RF-SEM Framework Analysis Ma, Weibo, Zhu, Yueming, Ou, Depin, Chen, Yicong, Shao, Yamei, Wang, Nannan, Wang, Nan, Li, Haidong Photosynthesis, Primary Production, Vegetation Productivity
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