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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 [Data set]. NASA Land Processes Distributed Active Archive Center. https://doi.org/10.5067/MODIS/MOD17A3HGF.061 Date Accessed: 2026-06-19

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-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
A new framework for making carbon compensation standards considering Yang, Yinan, Zhao, Xian, Yu, Tao, Li, Xiangyun, Lan, Hailian, Xia, Fan, Xie, Yujing 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
Aridity controls on the dominance of soil mineral-associated and particulate organic carbon in the Qinghai-Tibet Plateau Liu, Hebin, Mu, Mei, Mu, Cuicui, Li, Kun, Wei, Yuguo, Lei, Pengsi, Liu, Fumei, Du, Xinlong, Li, Shijie, Li, Jianyu Photosynthesis, Primary Production, Vegetation Productivity
Analysis of Water Source Conservation Driving Factors Based on Machine Learning. Jia, Yixuan, Zhang, Zhe, Huang, Chunhua, Xie, Shuibo Photosynthesis, Primary Production, Vegetation Productivity
Aligning spatiotemporal supply and demand of nature's contribution to people (NCPs) for sustainable resource management Riva, Matteo, Kienast, Felix, Gret-Regamey, Adrienne Photosynthesis, Primary Production, Vegetation Productivity
A Terrestrial Ecosystem Carbon Sink Assessment Model Considering Forest Zhang, Mengyu, He, Honglin, Zhang, Li, Yu, Guirui, Ren, Xiaoli, Huang, Yuanyuan, Yuan, Wenping, Niu, Zhong'en 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)
Abundant top predators increase species interaction network complexity She, Wen, Holyoak, Marcel, Gu, Jiayin, Qi, Jinzhe, Liu, Shuyan, Jiang, Guangshun Photosynthesis, Primary Production, Vegetation Productivity
A Parsimonious Downscaling Method for Global Potential Net Primary Production: From 30 arcmin to 30 arcsec Resolution Weidinger, Florian, Matej, Sarah, Baumbach, Lukas, Hickler, Thomas, Werner, Christian, Erb, KarlHeinz Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity
An Improved InTEC Model for Estimating the Carbon Budgets in Eucalyptus Plantations Li, Zhipeng, Zhou, Mingxing, Luo, Kunfa, Wu, Yunzhong, Li, Dengqiu Photosynthesis, Primary Production, Vegetation Productivity
An ecosystem resilience index that integrates measures of vegetation Johnson, Marie, Ballantyne, Ashley, Graham, Jon, Holden, Zachary, Hoylman, Zachary, Jensco, Kelsey, Ketchum, David, Kimball, John, Mitchell, Jessica Photosynthesis, Primary Production, Vegetation Productivity
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
Identifying climate and environmental determinants of spatial disparities in wheat production using a geospatial machine learning model Ren, Kai, Song, Yongze, Li, Linchao, Mancini, Francesco, Xiao, Zhuoyao, Zhang, Xueyuan, Qu, Rui, Yu, Qiang Photosynthesis, Primary Production, Vegetation Productivity, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI)
Hydrological drivers of maize productivity: A new analytical framework Zhang, Qichen, Shen, Xiaofang, Dong, Weihong, Su, Xiaosi, Wan, Yuyu, Lyu, Hang, Song, Tiejun Precipitation, Rain, Precipitation Amount, Precipitation Rate, Snow, Land Use/Land Cover Classification, Plant Phenology, Enhanced Vegetation Index (EVI), Evapotranspiration, Photosynthesis, Primary Production, Latent Heat Flux, Vegetation Productivity
Mapping global distributions, environmental controls, and uncertainties of apparent topsoil and subsoil organic carbon turnover times Zhang, Lei, Yang, Lin, Crowther, Thomas W., Zohner, Constantin M., Doetterl, Sebastian, Heuvelink, Gerard B. M., Wadoux, Alexandre M. J.-C., Zhu, A.-Xing, Pu, Yue, Shen, Feixue, Ma, Haozhi, Zou, Yibiao, Zhou, Chenghu Photosynthesis, Primary Production, Vegetation Productivity, Litter Characteristics
Integrating MultiLevel Sustainability and Ecosystem Integrity for Adaptive Scenario Planning in China Wang, Yafei, He, Yao, Zhou, Hao, Kuiper, Jan J., Scown, Murray, CarpenterUrquhart, Liam R., Olin, Stefan, Olsson, Lennart, Ye, Yuxuan, Shen, Shuwei, Fan, Jie, Peterson, Garry D. Photosynthesis, Primary Production, Vegetation Productivity, Terrain Elevation, RADAR IMAGERY, Topographical Relief Maps
Linking wildlife conservation with Nature's Contributions to People: The Dobelmann, Svenja, Thiel, Michael, Kleemann, Janina 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
Long-term monitoring reveals scale-dependent decoupling of waterbird He, Miaomiao, Lin, Yufeng, Cheng, Cheng, Zhou, Zhiqin, Guo, Pingping, Fan, Xin, Wang, Wenqing Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Photosynthesis, Primary Production, Vegetation Productivity
Mapping 1-km soybean yield across China from 2001 to 2020 based on ensemble learning Zhang, Min, Xu, Xinlei, Ou, Junji, Zhang, Zengguang, Chen, Fangzheng, Shi, Lijie, Wang, Bin, Zhang, Meiqin, He, Liang, Zhang, Xueliang, Chen, Yong, Hu, Kelin, Feng, Puyu Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Land Surface Temperature, Emissivity, 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)
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