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Description

The MYD17A3HGF Version 6 data product was decommissioned on July 31, 2023. Users are encouraged to use the MYD17A3HGF Version 6.1 data product.

The MYD17A3HGF 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 (MYD17A2H) from the given year. The PSN value is the difference of the Gross Primary Productivity (GPP) and the Maintenance Respiration (MR).

The MYD17A3HGF will be generated at the end of each year when the entire yearly 8-day MYD15A2H is available. Hence, the gap-filled MYD17A3HGF is the improved MYD17, which has cleaned the poor-quality inputs from 8-day Leaf Area Index and Fraction of Photosynthetically Active Radiation (FPAR/LAI) 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 MYD17A3HGF in near-real time because it will be generated only at the end of a given year.

Known Issues

Version Description

Gap-filled MODIS 6 evapotranspiration and latent heat flux data products were introduced in MODIS Version 6

Product Summary

Platforms
Aqua
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
2002-07-04 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
C2763370689-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). MYD17A3HGF MODIS/Aqua 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/MYD17A3HGF.006 Date Accessed: 2026-05-01

File Naming Convention

MYD17A3HGF.A2003001.h17v00.006.2019322164149.hdf

The file name begins with the Product Short Name (MYD17A3HGF) followed by the Julian Date of Acquisition formatted as AYYYYDDD (A2003001), the Tile Identifier which is horizontal tile and vertical tile provided as hXXvYY (h17v00), the Version of the data collection (006), the Julian Date and Time of Production designated as YYYYDDDHHMMSS (2019322164149), and the Data Format (hdf).

Documents

Publications Citing This Dataset

Filters
Title Year Author Topic
The newly developed Multi-ensemble Biomass-burning Emissions Inventory (MBEI): characterizing and unraveling spatiotemporal uncertainty in global ... Liu, Xinlu, Sun, Zhongyi, Shi, Chong, Wang, Peng, Nie, Tangzhe, Chu, Qingnan, Shang, Huazhe, Sun, Lu, Ji, Dabin, Guo, Meng, Yi, Kunpeng, Tan, Zhenghong, Wu, Lan, Lu, Xinchun, Yin, Shuai Plant Phenology, Enhanced Vegetation Index (EVI), Land Use/Land Cover Classification, Photosynthesis, Primary Production, VEGETATION PRODUCTIVITY, Fire Dynamics, Surface Radiative Properties, Land Surface Temperature
Drivers of soil organic carbon from temperate to alpine forests: a model-based analysis of the Swiss forest soil inventory with Yasso20 Guidi, Claudia, Gosheva-Oney, Sia, Didion, Markus, Flury, Roman, Walthert, Lorenz, Zimmermann, Stephan, Oney, Brian J., Niklaus, Pascal A., Thurig, Esther, Viskari, Toni, Liski, Jari, Hagedorn, Frank Photosynthesis, Primary Production, VEGETATION PRODUCTIVITY
Driving Forces of Ecosystem Transformation in Extremely Arid Areas: Insights from Hami City in Xinjiang, China Li, Zhiwei, Wang, Younian, Wang, Shuaiyu, Li, Chengzhi Vegetation Index, Landscape Patterns, Photosynthesis, Primary Production, VEGETATION PRODUCTIVITY
Dynamic, high-resolution poverty measurement in data-scarce environments Zheng, Zhuo, Wu, Timothy, Lee, Richard, Newhouse, David, Kilic, Talip, Burke, Marshall, Ermon, Stefano, Lobell, David B. Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Photosynthesis, Primary Production, VEGETATION PRODUCTIVITY
Future enhanced threshold effects of wildfire drivers could increase burned areas in northern mid-and high latitudes Zhao, Hang, Zhang, Zhengxiang, Wang, Xin, Zhen, Shuo, Zhang, Hongyan, Bu, Zhao-Jun, Zhao, Jianjun, Guo, Xiaoyi, Wei, Kejiang, Dong, Long Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Land Use/Land Cover Classification, Photosynthesis, Primary Production, VEGETATION PRODUCTIVITY
Identification of the dominant factors and altitudinal variation in water use efficiency in the QinlingDaba Mountains Zhao, Tixia, Zhu, Lianqi, Dong, Qingdong, Shi, Beibei, Zhao, Jingjing, Zhu, Wenbo Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Characteristics, Photosynthetically Active Radiation, Photosynthesis, Primary Production, VEGETATION PRODUCTIVITY
Mapping high-resolution forest aboveground biomass of China using multisource remote sensing data Yang, Qiuli, Niu, Chunyue, Liu, Xiaoqiang, Feng, Yuhao, Ma, Qin, Wang, Xuejing, Tang, Hao, Guo, Qinghua Photosynthesis, Primary Production, VEGETATION PRODUCTIVITY
Evaluation and validation of the net primary productivity of the Zoig wetland based on Grazing Coupled Remote Sensing Process model He, Li, Li, Chengying, He, Zhengwei, Liu, Xian, Qu, Rui Photosynthesis, Primary Production, VEGETATION PRODUCTIVITY
COVID-19 impacts on beaches and coastal water pollution at selected sites in Ecuador, and management proposals post-pandemic Ormaza-Gonzailez, Franklin I., Castro-Rodas, Divar, Statham, Peter J. Photosynthesis, Primary Production, VEGETATION PRODUCTIVITY
Sub-Daily Natural CO2 Flux Simulation Based on Satellite Data: Diurnal Wang, Qiao, Imasu, Ryoichi, Arai, Yutaka, Ito, Satoshi, Mizoguchi, Yasuko, Kondo, Hiroaki, Xiao, Jingfeng Photosynthesis, Primary Production, VEGETATION PRODUCTIVITY, Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Canopy Characteristics, Evergreen Vegetation, Crown, Deciduous Vegetation, Vegetation Cover, Land Use/Land Cover Classification, Plant Phenology, Enhanced Vegetation Index (EVI), Albedo, Anisotropy
Spatially explicit modeling of community occupancy using Markov Random Field models with imperfect observation: Mesocarnivores in Apostle Islands ... Shen, Yunyi, Olson, Erik R., Van Deelen, Timothy R. 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 Percent uint8 249 0 to 100 N/A N/A
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