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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: 2026-07-07

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
Drivers of Anuran Assemblage Structure in a Subtropical Montane Region Bassetto, Kauan, CarvalhoRocha, Vitor, Peres, Carlos A., NeckelOliveira, Selvino Photosynthesis, Primary Production, Vegetation Productivity
Dryland Dynamics in the Mediterranean Region Zeng, Hongwei, Wu, Bingfang, Elnashar, Abdelrazek, Fu, Zhijun Photosynthesis, Primary Production, Vegetation Productivity
Dynamic evaluation of the ecological evolution and quality of arid and semi-arid deserts in the Aibugai River Basin based on an improved remote sensing ecological index Zhang, Haobin, Ma, Chao, Liu, Pei Photosynthesis, Primary Production, Vegetation Productivity
Dynamic Variation of Vegetation NPP and Its Driving Forces in the Yellow River Basin, China Wang, Shimei, Ma, Yutao, Gong, Jie, Jin, Tiantian Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Photosynthesis, Primary Production, Vegetation Productivity
Ecosystem Health Assessment of the Manas River Basin: Application of the CC-PSR Model Improved by Coupling Coordination Degree Xiao, Ruiming, Qiao, Yuxuan, Dong, Xiaobin, Ren, Huize, Wang, Xuechao, Zhang, Peng, Ye, Qiaoru, Xiao, Xiaomin Photosynthesis, Primary Production, Vegetation Productivity
Enhancing ecosystem productivity and stability with increasing canopy structural complexity in global forests Liu, Xiaoqiang, Feng, Yuhao, Hu, Tianyu, Luo, Yue, Zhao, Xiaoxia, Wu, Jin, Maeda, Eduardo E., Ju, Weiming, Liu, Lingli, Guo, Qinghua, Su, Yanjun Photosynthesis, Primary Production, Vegetation Productivity, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI)
Enhanced mineral preservation rather than microbial residue production dictates the accrual of mineralassociated organic carbon along a weathering gradient Zhu, Erxiong, Liu, Zongguang, Ma, Lixiao, Luo, Jianing, Kang, Enze, Wang, Ya, Zhao, Yunpeng, Jia, Juan, Feng, Xiaojuan Photosynthesis, Primary Production, Vegetation Productivity
Adverse Effects of Ozone Pollution on Net Primary Productivity in the Long, X., Han, Y., Wang, Q. Y., Li, X. K., Feng, T., Wang, Y. C., Wang, Y., Zhang, S. L., Han, Y. M., Li, G. H., Tie, X. X., Cao, J. J., Chen, Y. Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity
A novel framework for multiple thermokarst hazards risk assessment and controlling environmental factors analysis on the Qinghai-Tibet Plateau Lou, Peiqing, Wu, Tonghua, Yin, Guoan, Chen, Jie, Zhu, Xiaofan, Wu, Xiaodong, Li, Ren, Yang, Sizhong Land Use/Land Cover Classification, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Photosynthesis, Primary Production, Vegetation Productivity, Photosynthetically Active Radiation, Leaf Characteristics, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), RADAR IMAGERY, Terrain Elevation, Topographical Relief Maps, Digital Elevation/Terrain Model (DEM)
A global analysis of plant nutrient limitation affected by atmospheric nitrogen and phosphorous deposition Du, Lan, Tang, Lisong, Zheng, Xinjun, Li, Yan Photosynthesis, Primary Production, Vegetation Productivity
An ensemble estimate of Australian soil organic carbon using machine learning and process-based modelling Wang, Lingfei, Abramowitz, Gab, Wang, Ying-Ping, Pitman, Andy, Viscarra Rossel, Raphael A. Photosynthesis, Primary Production, Vegetation Productivity
Assessment of global carbon dynamics due to mining-induced forest cover loss during 20002019 using satellite datasets Ranjan, Avinash Kumar, Gorai, Amit Kumar Photosynthesis, Primary Production, Vegetation Productivity
Analyzing ecosystem functions in Bangladesh's forests: a historical MODIS study Tithi, Adrita Choudury, Sohel, Md. Shawkat Islam, Jakariya, Md., Rana, Parvez Photosynthesis, Primary Production, Vegetation Productivity, Land Surface Temperature, Emissivity, Evapotranspiration, Latent Heat Flux, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Balancing Water Yield and Water Use Efficiency Between Planted and Natural Forests: A Global Analysis Sun, Shulan, Xiang, Wenhua, Ouyang, Shuai, Hu, Yanting, Peng, Changhui Photosynthesis, Primary Production, Vegetation Productivity
Changes in Soil Carbon and Nitrogen Along a 3-m Vertical Profile and Sun, Ruojun, Sun, Kuo, Liu, Leren, Wu, Wenjuan, Xu, Zhenzhu Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Photosynthesis, Primary Production, Vegetation Productivity
Changes in soil erosion caused by wildfire: A conceptual biogeographic Noske, Philip J., Nyman, Petter, Lane, Patrick N.J., Rengers, Francis K., Sheridan, Gary J. Photosynthesis, Primary Production, Vegetation Productivity
Big Earth Data in Support of the Sustainable Development Goals (2022)The Belt and Road Guo, Huadong Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity
Climate Interacts With Diversification Rate in Determining Species Moroti, Matheus de T., Skeels, Alexander, da Silva, Fernando R., Provete, Diogo B. Photosynthesis, Primary Production, Vegetation Productivity
Climate regulation processes are linked to the functional composition of Kambach, Stephan, Attorre, Fabio, Axmanova, Irena, Bergamini, Ariel, Biurrun, Idoia, Bonari, Gianmaria, Carranza, Maria Laura, Chiarucci, Alessandro, Chytry, Milan, Dengler, Jurgen, Garbolino, Emmanuel, Golub, Valentin, Hickler, Thomas, Jandt, Ute, Jansen, Jan, JimenezAlfaro, Borja, Karger, Dirk Nikolaus, Lososova, Zdenka, Rasomavicius, Valerijus, Rusina, Solvita, Sieber, Petra, Stanisci, Angela, Thuiller, Wilfried, Welk, Erik, Zimmermann, Niklaus E., Bruelheide, Helge Photosynthesis, Primary Production, Vegetation Productivity, Albedo, Anisotropy
Fish distribution across altitudinal gradients in the Upper Paraguay Fernando, Adriana Maria Espinoza, SeveroNeto, Francisco, Ferreira, Fabiane Silva, Mateus, Lucia, TondatoCarvalho, Karina K., Kashiwaqui, Elaine Antoniassi Luiz, Gimenes Junior, Heriberto, Domingues, Wladimir M., Pavanelli, Carla Simone, Pinho, Henrique Ledo Lopes, Penha, Jerry, Suarez, Yzel Rondon Photosynthesis, Primary Production, Vegetation Productivity
Extreme Climate as the Primary Control of Global Soil Organic Carbon Wei, Yucheng, Wang, Mingming, Viscarra Rossel, R. A., Chen, Hong, Luo, Zhongkui Canopy Characteristics, Evergreen Vegetation, Crown, Deciduous Vegetation, Leaf Characteristics, Vegetation Cover, Land Use/Land Cover Classification, Fire Occurrence, Surface Thermal Properties, Land Surface Temperature, THERMAL ANOMALIES, Emissivity, Vegetation Index, Terrain Elevation, Topographical Relief Maps, Digital Elevation/Terrain Model (DEM), Normalized Difference Vegetation Index (NDVI), RADAR IMAGERY, Photosynthesis, Primary Production, Vegetation Productivity
External and internal driving forces of community and functional group stability in the forest mammal community She, Wen, Gu, Jiayin, Qi, Jinzhe, Liu, Shuyan, Yang, Xifu, Zhang, Zhibin, Jiang, Guangshun Photosynthesis, Primary Production, Vegetation Productivity
Geographic range of plants drives long-term climate change Gurung, Khushboo, Field, Katie J., Batterman, Sarah A., Poulton, Simon W., Mills, Benjamin J. W. Photosynthesis, Primary Production, Vegetation Productivity
Evaluation and Prediction of Ecological Benefits in Song-Liao River Basin Cao, Jiaxi, Liang, Meng, Hu, Xiaodan, Zhang, Jian, Li, Jiao, Bai, Bin, Chen, Ye, Hu, Yue, Wu, Shuhong Photosynthesis, Primary Production, Vegetation Productivity, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI)
Evaluating soil acidification risk and its effects on biodiversityecosystem multifunctionality relationships in the drylands of China Du, Lan, Tian, Shengchuan, Zhao, Nan, Zhang, Bin, Mu, Xiaohan, Tang, Lisong, Zheng, Xinjun, Li, Yan Photosynthesis, Primary Production, Vegetation Productivity
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