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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: 2026-07-18

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
Variation in reproductive mode across the latitudinal range of invasive Russian knapweed Gaskin, John F, Littlefield, Jeffrey L, Rand, Tatyana A, West, Natalie M Photosynthesis, Primary Production, Vegetation Productivity
Ungulates alter plant cover without consistent effect on soil ecosystem functioning Ibanez-Alvarez, Miguel, Baraza, Elena, Serrano, Emmanuel, Romero-Munar, Antonia, Cardona, Carles, Bartolome, Jordi, Krumins, Jennifer Adams Photosynthesis, Primary Production, Vegetation Productivity
Divergent responses of terrestrial carbon use efficiency to climate Gang, Chengcheng, Wang, Zhuonan, You, Yongfa, Liu, Yue, Xu, Rongting, Bian, Zihao, Pan, Naiqing, Gao, Xuerui, Chen, Mingxun, Zhang, Man Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity
Effects of Environmental Factors on the Changes in MODIS NPP along DEM in Global Terrestrial Ecosystems over the Last Two Decades Wang, Zhaoqi, Wang, Hong, Wang, Tongfang, Wang, Lina, Huang, Xiaotao, Zheng, Kai, Liu, Xiang Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Photosynthesis, Primary Production, Vegetation Productivity
Ecosystem Service of Tropical Flooded Forests and its Relation to Characteristics of Local Communities Ly, Sophanna, Uk, Sovannara, Pham, Ngoc Bao, Yoshimura, Chihiro Photosynthesis, Primary Production, Vegetation Productivity
Construction and optimization strategy of ecological security pattern in a rapidly urbanizing regionA case study in central-south China Ding, Mingming, Liu, Wen, Xiao, Li, Zhong, Feixia, Lu, Na, Zhang, Jun, Zhang, Zhihui, Xu, Xianli, Wang, Kelin Photosynthesis, Primary Production, Vegetation Productivity
Emergy-based eco-credit accounting method for wetland mitigation banking Yan, Ningyu, Liu, Gengyuan, Xu, Linyu, Deng, Xiaoya, Casazza, Marco Photosynthesis, Primary Production, Vegetation Productivity
Agricultural landscape change impact on the quality of land: An African continent-wide assessment in gained and displaced agricultural lands Akinyemi, Felicia O., Ifejika Speranza, Chinwe Population Density, Photosynthesis, Primary Production, Vegetation Productivity, Crop/Plant Yields, Land Use Classes, Landscape Patterns, Cropland
A stacking ensemble algorithm for improving the biases of forest aboveground biomass estimations from multiple remotely sensed datasets Zhang, Yuzhen, Ma, Jun, Liang, Shunlin, Li, Xisheng, Liu, Jindong Photosynthesis, Primary Production, Vegetation Productivity
A new global land productivity dynamic product based on the consistency of various vegetation biophysical indicators Cui, Yuran, Li, Xiaosong Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Photosynthesis, Primary Production, Vegetation Productivity, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI)
A Multi-Perspective Assessment Method with a Dynamic Benchmark for Human Zhang, Fuguang, Zeng, Biao, Yang, Taibao, Zheng, Yuxuan, Cao, Ying Photosynthesis, Primary Production, Vegetation Productivity
Assessing the sustainability of urbanization at the sub-national level: The Ecological Footprint and Biocapacity accounts of the Budapest Metropolitan Region ... Kovacs, Zoltan, Farkas, Jeno Zsolt, Szigeti, Cecilia, Harangozo, Gabor Photosynthesis, Primary Production, Vegetation Productivity
Assessment of spatio-temporal changes for ecosystem healthA case study of Hexi Corridor, Northwest China Wei, Wei, Nan, Shengxiang, Liu, Chunfang, Xie, Binbin, Zhou, Junju, Liu, Congying Photosynthesis, Primary Production, Vegetation Productivity
Anthropogenic and environmental determinants of alien plant species spatial distribution on an island scale Dimitrakopoulos, Panayiotis G., Koukoulas, Sotirios, Michelaki, Chrysanthi, Galanidis, Alexandros Photosynthesis, Primary Production, Vegetation Productivity, Terrain Elevation, RADAR IMAGERY, Topographical Relief Maps
Atmospheric phosphorus deposition amplifies carbon sinks in simulations of a tropical forest in Central Africa Goll, Daniel S., Bauters, Marijn, Zhang, Haicheng, Ciais, Philippe, Balkanski, Yves, Wang, Rong, Verbeeck, Hans Photosynthesis, Primary Production, Vegetation Productivity
Change Trend and Restoration Potential of Vegetation Net Primary Liu, Guobo, Shao, Quanqin, Fan, Jiangwen, Ning, Jia, Rong, Kai, Huang, Haibo, Liu, Shuchao, Zhang, Xiongyi, Niu, Linan, Liu, Jiyuan Photosynthesis, Primary Production, Vegetation Productivity
Changes in habitat quality of nature reserves in depopulating areas due to anthropogenic pressureEvidence from Northeast China, 20002018 Wu, Hui, Fang, Shiming, Yang, Yuanyuan, Cheng, Jia Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Photosynthesis, Primary Production, Vegetation Productivity
Climatic and biotic factors influencing regional declines and recovery of tropical forest biomass from the 2015/16 El Nino Yang, Hui, Ciais, Philippe, Wigneron, Jean-Pierre, Chave, Jerome, Cartus, Oliver, Chen, Xiuzhi, Fan, Lei, Green, Julia K., Huang, Yuanyuan, Joetzjer, Emilie, Kay, Heather, Makowski, David, Maignan, Fabienne, Santoro, Maurizio, Tao, Shengli, Liu, Liyang, Yao, Yitong Photosynthesis, Primary Production, Vegetation Productivity, Total Surface Precipitation Rate
Climate-driven variations in productivity reveal adaptive strategies in Iberian cork oak agroforestry systems Perez-Giron, Jose Carlos, Diaz-Varela, Emilio Rafael, Alvarez-Alvarez, Pedro Photosynthesis, Primary Production, Vegetation Productivity
Functional traits of a plant species fingerprint ecosystem productivity along broad elevational gradients in the Himalayas Sigdel, Shalik Ram, Liang, Eryuan, Rokaya, Maan Bahadur, Rai, Samresh, Dyola, Nita, Sun, Jian, Zhang, Lin, Zhu, Haifeng, Chettri, Nakul, Chaudhary, Ram Prasad, Camarero, J. Julio, Penuelas, Josep Photosynthesis, Primary Production, Vegetation Productivity
Exploring ecosystem functioning in spain with gross and net primary production time series Martinez, Beatriz, Sanchez-Ruiz, Sergio, Campos-Taberner, Manuel, Garcia-Haro, F. Javier, Gilabert, M. Amparo Photosynthesis, Primary Production, Vegetation Productivity
Global biomass burning fuel consumption and emissions at 500 m spatial resolution based on the Global Fire Emissions Database (GFED) van Wees, Dave, van der Werf, Guido R., Randerson, James T., Rogers, Brendan M., Chen, Yang, Veraverbeke, Sander, Giglio, Louis, Morton, Douglas C. Photosynthesis, Primary Production, Vegetation Productivity, Photosynthetically Active Radiation, Leaf Area Index (LAI), Leaf Characteristics, Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Canopy Characteristics, Evergreen Vegetation, Crown, Deciduous Vegetation, Vegetation Cover, Land Use/Land Cover Classification, Reflectance, Total Surface Water, Plant Phenology, Enhanced Vegetation Index (EVI), Biomass, Forests, Carbon, Burned Area, Terrain Elevation, Plant Characteristics, Soil Moisture/Water Content, Vegetation Species, Soil Depth
Evaluating the effect of prescribed burning on the reduction of wildfire extent in Portugal Davim, David A., Rossa, Carlos G., Pereira, Jose M.C., Fernandes, Paulo M. Terrain Elevation, Digital Elevation/Terrain Model (DEM), Topographical Relief Maps, Photosynthesis, Primary Production, Vegetation Productivity
Establishing and Optimizing the Ecological Security Pattern in Shaanxi Li, Han, Zhang, Tian, Cao, Xiao-Shu, Zhang, Qian-Qian Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Evapotranspiration, Latent Heat Flux
Evidence, causes, and consequences of declining nitrogen availability in Mason, Rachel E., Craine, Joseph M., Lany, Nina K., Jonard, Mathieu, Ollinger, Scott V., Groffman, Peter M., Fulweiler, Robinson W., Angerer, Jay, Read, Quentin D., Reich, Peter B., Templer, Pamela H., Elmore, Andrew J. Photosynthesis, Primary Production, Vegetation Productivity
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