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Description

The MOD17A3HGF Version 6 data product was decommissioned on July 31, 2023. Users are encouraged to use the MOD17A3HGF Version 6.1 data product.

The MOD17A3HGF Version 6 product provides information about annual Net Primary Production (NPP) at 500 meter (m) pixel resolution. Annual NPP is derived from the sum of all 8-day Net Photosynthesis (PSN) products (MOD17A2H) from the given year. The PSN value is the difference of the Gross Primary Productivity (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 MODIS Version 6 gross primary productivity data products: (1) The product uses updated Biome Property look-up tables (BPLUT) and an updated version of the daily Global Modeling and Assimilation Office (GMAO) meteorological data, and (2) The products are now generated at the native resolution of 500 m using the Moderate Resolution Imaging Spectroradiometer (MODIS) Leaf Area Index(LAI)/Fraction of Photosynthetically Active Radiation (FPAR) (MOD15A2H) 8-day composite at 500 m resolution.

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
2000-02-18 to 2021-12-31
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
C2763298108-LPCLOUD
Data State
DEPRECATED
Number of Files/Granules
0
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. (2019). MOD17A3HGF MODIS/Terra Net Primary Production Gap-Filled Yearly L4 Global 500 m SIN Grid V006 [Data set]. NASA Land Processes Distributed Active Archive Center. https://doi.org/10.5067/MODIS/MOD17A3HGF.006 Date Accessed: 2026-05-20

File Naming Convention

MOD17A3HGF.A2003001.h17v10.006.2019322163254.hdf

The file name begins with the Product Short Name (MOD17A3HGF) followed by the Julian Date of Acquisition formatted as AYYYYDDD (A2003001), the Tile Identifier which is horizontal tile and vertical tile provided as hXXvYY (h17v10), the Version of the data collection (006), the Julian Date and Time of Production designated as YYYYDDDHHMMSS (2019322163254), and the Data Format (hdf).

Documents

Publications Citing This Dataset

Filters
Title Year Author Topic
Constructing an ecological security pattern for waterfront areas from the perspective of water culture conservation: a case study of the J section of the Beijing ... Yang, Haiyan, He, Sheng Photosynthesis, Primary Production, Vegetation Productivity
Improving predictions of soil heterotrophic respiration: A parameter-optimized microbial model for alpine meadows in the three-river source region, Qinghai-Tibet plateau Lu, Yongkang, Yu, Sheng, Xiang, Mingxue, Zheng, Kai, Ma, Tao, Wang, Zhaoqi Photosynthesis, Primary Production, Vegetation Productivity
Divergent Responses of Ecosystem Water and Carbon Use Efficiency to Wang, Yue, Gao, Guangyao, Huang, Yanzhang, Fu, Bojie Photosynthesis, Primary Production, Vegetation Productivity, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI)
Driving mechanisms of vegetation carbon sink distribution based on explainable machine learning and evaluation of carbon sequestration in open-pit mines Geng, Yulong, Guo, Weihua, Li, Quanzhi, Zhang, Fan, zhong, Anya, Hu, Zhenqi Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), RADAR IMAGERY, Terrain Elevation, Topographical Relief Maps, Digital Elevation/Terrain Model (DEM), Photosynthesis, Primary Production, Vegetation Productivity
Effects of aridity on soil dissolved organic matter in abandoned grasslands of the central Loess Plateau Mo, Shuaihao, Zou, Wenjing, Wang, Ying, Li, Kangying, He, Yanxing, Cai, Wenzhuo, Du, Xuan, Jian, Jinshi Photosynthesis, Primary Production, Vegetation Productivity
Ecological Vulnerability Assessment in Hubei Province, China: PressureStateResponse (PSR) Modeling and Driving Factor Analysis from 2000 to 2023 Sun, Yaqin, Yang, Jinzhong, Wang, Hao, Bu, Fan, Wang, Ruiliang Photosynthesis, Primary Production, Vegetation Productivity
Ecosystem health responses to tourism activities in the Qinghai-Tibet Plateau: Nonlinear relationships and mechanism Xu, Linlin, Yu, Hu, Zhong, Linsheng Photosynthesis, Primary Production, Vegetation Productivity
Microbial growth rate is a stronger predictor of soil organic carbon than carbon use efficiency He, Xianjin, Marmasse, Gaelle, Hu, Junxi, Varney, Rebecca M., Manzoni, Stefano, Ciais, Philippe, Wang, Ying-Ping, Cui, Yongxing, Bai, Edith, Abramoff, Rose Z., Abs, Elsa, Schwarz, Erik, Zhang, Haicheng, Goll, Daniel S. Photosynthesis, Primary Production, Vegetation Productivity
Mapping critical thresholds and dynamic drivers of net primary productivity response to shrub encroachment in Xilin Gol grasslands using multi-source remote ... Wang, Xi, Lyu, Xiaoqing, Liu, Jianhong, Zhu, Wenquan, Jia, Ruolan, Wang, Ziqi, Wang, Jing, Li, Wei, Liu, Nan, He, Yanfen Photosynthesis, Primary Production, Vegetation Productivity, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI)
A study on the impact of human activities on the ecosystem health of Three-River-source national park Zhang, Feng, Chen, Yan, Xue, Huaju, Zhang, Jinhe, Wang, Yanqin, Li, Aiqing, Wang, Xiaofen Photosynthesis, Primary Production, Vegetation Productivity
Ai-driven spatiotemporal modelling of agricultural biomass residues in Shi, Zhan, Marinello, Francesco, Pezzuolo, Andrea Photosynthesis, Primary Production, Vegetation Productivity
A near-global dataset of dissolved organic carbon concentrations and yields in forested headwater streams Liu, Dong, Chang, Ruiying, Tang, Haiping Autotrophic Respiration (ra), Heterotrophic Respiration (rh), Photosynthesis, Primary Production, Vegetation Productivity
A Priority conservation strategy based on a multi-scale perspective of ecosystem services: a case study of the taihang mountains, china Guo, Linghui, Xu, Muchao, Zhang, Yang, Yan, Jingjing, Gao, Jiangbo, Zhang, Hebing, Zou, Youfeng, Hu, Yang Photosynthesis, Primary Production, Vegetation Productivity
A machine learning-based wildfire susceptibility mapping framework for Yan, Kaida, Zhao, Fengjun, Shu, Lifu, Liu, Yongqiang, Wang, Mingyu, Si, Liqing, Li, Weike, Li, Xiaoxiao, Zhang, Shiyuan, Li, Siwei, Wang, Jinglu Photosynthesis, Primary Production, Vegetation Productivity, Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Terrain Elevation, RADAR IMAGERY, Topographical Relief Maps
Global patterns and controls of terrestrial above-and belowground Wang, Shuai, Wang, Yingping, Zhang, Lu, Cheng, Lei, Zou, Kaijie, Zhou, Lihao, Wang, Yafei, Ye, Linyuan, Wu, Yue, Chang, Liwei, Qin, Shujing, Liu, Pan Biomass Dynamics, Primary Production, Biomass, Photosynthesis, Vegetation Productivity, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Global impacts of transportation infrastructure on forest degradation and loss Zhou, Decheng, Xiao, Jingfeng, Liu, Shuguang, Huang, Lin, Zhang, Liangxia, Fan, Jiangwen, Zhao, Shuqing Photosynthesis, Primary Production, Vegetation Productivity
Assessment of the Socio-Natural Development of Ukraine Oblasts in the Conditions of Modern Challenges Yelistratova, Lesya, Apostolov, Alexander, Bakhonsky, Oleksandr, Kuzminska, Galina, Tymchyshyn, Maksym, Khodorovskyi, Artur Photosynthesis, Primary Production, Vegetation Productivity
Modeling net primary productivity in a Cretaceous terrestrial ecosystem: a probabilistic approach Taylor, Ian Alexander, Lupia, Richard, Hodges, Caitlin Photosynthesis, Primary Production, Vegetation Productivity
Study on Spatio-Temporal Changes and Driving Factors of Soil and Water Conservation Ecosystem Services in the Source Region of the Yellow River Li, Xiaoqing, Zhang, Xingnian, Sheng, Keding, Zhang, Fengqiuli, Chen, Tongde, Yan, Binzu Photosynthesis, Primary Production, Vegetation Productivity
Spatially-explicit biophysical assessment uncovered spatiotemporal Xie, Yongjuan, Wang, Ping, Cheng, Changxiu, Meng, Zheng, Wu, Xudong Photosynthesis, Primary Production, Vegetation Productivity
Spatio-temporal Analysis of Forest Degradation and Its Biomass Carbon Model in Sumatra Zahira, Dhia Zalfa, Sakti, Anjar Dimara, Wikantika, Ketut Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Photosynthesis, Primary Production, Vegetation Productivity, Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Land Surface Temperature, Emissivity
Spatiotemporal Heterogeneity Analysis of Net Primary Productivity in Nanjings Urban Green Spaces Based on the DLCCNPP Model: A Long-Term and Multi-Scenario Approach Fang, Yuhao, Liu, Yuyang, Wang, Yuan, Cao, Yilun, Cheng, Yuning Photosynthesis, Primary Production, Vegetation Productivity
Responses of grassland ecosystem temporal stability to biotic and abiotic drivers in arid and semi-arid regions of China Han, Yunxiang, Zhang, Huayong, Zhao, Bingjian, Luo, Xi, Zhang, Xiao Plant Phenology, Enhanced Vegetation Index (EVI), Photosynthesis, Primary Production, Vegetation Productivity, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Transcontinental Divergence in Soil Carbon Stock Response to Decades of Wetland Drainage Liu, Chengzhu, Zhao, Yunpeng, Li, Xuefei, Yi, Wenxing, Pihlatie, Mari, Minkkinen, Kari, Li, Xingqi, Dai, Guohua, Luo, Wanqing, Liu, Xiaoqing, Liu, Zongguang, Dong, Bogang, Ren, Yongxing, Tuittila, EevaStiina, Vesala, Timo, Peng, Shushi, Feng, Xiaojuan Photosynthesis, Primary Production, Vegetation Productivity
Organo-aluminum complexation as a dominant metal control on soil carbon storage in Andisols: Global evidence across pedogenic and pH gradients Kida, Morimaru, Nagano, Hirohiko, Shimada, Hiroaki, Fukumasu, Jumpei, Wagai, Rota Photosynthesis, Primary Production, Vegetation Productivity
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Variables

The table below lists the variables contained within a single granule for this dataset. Variables often contain observed or derived geophysical measurements collected from a variety of sources, including remote sensing instruments on satellite and airborne platforms, field campaigns, in situ measurements, and model outputs. The terms variable, parameter, scientific data set, layer, and band have been used across NASA’s Earth science disciplines; however, variable is the designated nomenclature in NASA’s Common Metadata Repository (CMR). Variable metadata attributes such as Name, Description, Units, Data Type, Fill Value, Valid Range, and Scale Factor allow users to efficiently process and analyze the data. The full range of attributes may not be applicable to all variables. Additional information on variable attributes is typically available in the data, user guide, and/or other product documentation.

For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor Offset
Npp_500m Net Primary Productivity kgC/m²/year int16 32761 -30000 to 32700 0.0001 N/A
Npp_QC_500m Quality Control Bits Percent uint8 249 0 to 100 N/A N/A
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