N: 90 S: -90 E: 180 W: -180
Description
The MOD17A2H Version 6 data product was decommissioned on July 31, 2023. Users are encouraged to use the MOD17A2H Version 6.1 data product.
The MOD17A2H Version 6 Gross Primary Productivity (GPP) product is a cumulative 8-day composite of values with 500 meter (m) pixel size based on the radiation use efficiency concept that can be potentially used as inputs to data models to calculate terrestrial energy, carbon, water cycle processes, and biogeochemistry of vegetation. The data product includes information about GPP and Net Photosynthesis (PSN). The PSN band values are the GPP less the Maintenance Respiration (MR). The data product also contains a PSN Quality Control (QC) layer. The quality layer contains quality information for both the GPP and the PSN.
Known Issues
- For complete information about known issues please refer to the MODIS/VIIRS Land Quality Assessment website.
Version Description
Product Summary
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.
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File Naming Convention
The file name begins with the Product Short Name (MOD17A2H) followed by the Julian Date of Acquisition formatted as AYYYYDDD (A2002273), the Tile Identifier which is horizontal tile and vertical tile provided as hXXvYY (h12v01), the Version of the data collection (006), the Julian Date and Time of Production designated as YYYYDDDHHMMSS (2015151211045), and the Data Format (hdf).
Documents
USER'S GUIDE
ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)
PRODUCT QUALITY ASSESSMENT
Publications Citing This Dataset
| Title | Year Sort ascending | Author | Topic |
|---|---|---|---|
| Data gaps and outliers distort critical-slowing-down-based resilience | Liu, Teng, Morr, Andreas, Bathiany, Sebastian, Blaschke, Lana L., Qian, Zhen, Diao, Chan, Smith, Taylor, Boers, Niklas | Plant Phenology, Enhanced Vegetation Index (EVI), Vegetation Index, Normalized Difference Vegetation Index (NDVI), Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity | |
| Accelerated carbon cycling after 50 years of warming and increasing hydrologic variability in a temperate stream | Carter, Alice M., Vlah, Michael J., Hall, Robert O., Bernhardt, Emily S. | Photosynthesis, Primary Production, Vegetation Productivity | |
| Fuzzy Cognitive Maps in Corn Yield Forecast | Kokhan, Svitlana, Popov, Mykhailo, Alpert, Sofiia, Andreiev, Artem, Drozdivskyi, Oleg, Temna, Yuliia, Sybirtseva, Oksana, Dorofey, Yelizaveta | Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Land Surface Temperature, Emissivity, Photosynthesis, Primary Production, Vegetation Productivity | |
| Bedrock controls vegetation resilience: Dominant role of lithology in | Li, Qian, Yue, Yuemin, Wang, Lu, Qi, Xiangkun, Wang, Kelin | Photosynthesis, Primary Production, Vegetation Productivity, Evapotranspiration, Latent Heat Flux | |
| Photosynthesis, heat, and structure: an evident hierarchy of environmental conditions driving wetland carbon assimilation | Romero, Eric, Rey-Sanchez, Camilo, Gerlein-Safdi, Cynthia, Baldocchi, Dennis D., Lee, Philip, Dronova, Iryna | Photosynthesis, Primary Production, Vegetation Productivity | |
| Pantropical moist forests are converging towards a middle leaf longevity | Xue, Meimei, Yang, Xueqin, Chen, Xiuzhi, Ciais, Philippe, Zhou, Liming, Reich, Peter B., Xiao, Jingfeng, Li, Xing, Xiao, Xiangming, Green, Julia K., Chen, Jing Ming, Liu, Jane, Shang, Jiali, Luo, Xiangzhong, Tian, Jie, Liu, Hui, Zhu, Peng, Yan, Kai, Fu, Xinyue, Han, Liusheng, Yuan, Wenping, Wu, Chaoyang | Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity, Total Surface Precipitation Rate | |
| Satellite-based detection of agricultural flash droughts and associated vegetation responses in southeastern South America | Masaro, Lumila, Lovino, Miguel A, Pierrestegui, M Josefina, Muller, Gabriela V, Dorigo, Wouter | Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Area Index (LAI), Photosynthesis, Primary Production, Vegetation Productivity, Evapotranspiration, Latent Heat Flux, Reflectance, Root Zone Soil Moisture, Surface Soil Moisture | |
| Sustainable grazing strategies for balancing soil conservation and | Liu, Le, Chen, Yunming, Peng, Shouzhang, Han, Qinggong, Wu, Yang | Evapotranspiration, Latent Heat Flux, Photosynthesis, Primary Production, Vegetation Productivity, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar) | |
| Soil moisture buffers the impact of precipitation variability on ecosystem productivity | Wang, Huiqi, Bassiouni, Maoya, Kang, Yanghui, Rifai, Sami W., Gherardi, Laureano A., Ukkola, Anna, Keenan, Trevor F. | Brightness Temperature, Surface Soil Moisture, Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI) | |
| Converging Patterns of Heterotrophic Respiration Between Growing and | Liu, Caiqin, Jiang, Honglei, Guo, Xiali | Photosynthesis, Primary Production, Vegetation Productivity | |
| Desertification expansion significantly suppresses photosynthetic peak capacity of arid ecosystems at the global scale | Qiu, Kaiyang, Zhang, Qingbin, Xie, Yingzhong, Shi, Mingjie, Wang, Chengyun, Dong, Tong, Ma, Jun, He, Panxing | Photosynthesis, Primary Production, Vegetation Productivity | |
| Determining the influence of meteorological, environmental, and | Mousavi, Seyed Mohsen, Dinan, Naghmeh Mobarghaee, Khoshbakht, Korous, Ansarifard, Saeed, Sonnentag, Oliver, Naghibi, Amir | Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity, Emissivity, Land Surface Temperature | |
| Developing a Lagrangian Frame Transformation on Satellite Data to Study | Seppala, Hannah, Zhang, Zhibo, Zheng, Xue | Photosynthesis, Primary Production, Vegetation Productivity, Infrared Radiance, REFLECTED INFRARED, Visible Radiance | |
| Improving the simulation of maize growth using WRF-Crop model based on | Bao, Lun, Yu, Lingxue, Yu, Entao, Li, Rongping, Cai, Zhongquan, Yu, Jiaxin, Li, Xuan | Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Photosynthesis, Primary Production, Vegetation Productivity, Evapotranspiration, Latent Heat Flux | |
| Increasing Aridity and Interannual Precipitation Variability Drives | Wang, Wanting, Liu, Shiliang, Zhang, Qiang, Zhao, Yifei, Dong, Yuhong, Wu, Gang, Li, Yetong, Fan, Jingyang, Lin, Jiayi, Tian, Ziang, Phan Tran, LamSon | Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Photosynthesis, Primary Production, Vegetation Productivity | |
| Historical and future dynamics of soil organic carbon and driving | Zhang, Lei, Xu, Tongtong, Bai, Yue, Wiesmeier, Martin, Li, Huiwen, Huang, Yue, Liu, Yu, Xie, Beilong, Song, Mingrui, Wu, Jiaru, Liu, Chen | Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Photosynthesis, Primary Production, Vegetation Productivity, Reflectance, Land Surface Temperature, Emissivity, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI) | |
| Historical spatiotemporal trends in global mangrove productivity and its | Liu, Qian, Wan, Luoma, Xu, Fei, Gou, Ruikun, Lin, Guanghui, Zhu, Xiaolin | Photosynthesis, Primary Production, Vegetation Productivity | |
| Importance of N2O in greenhouse gas budgets of tropical peatlands | Parn, Jaan, Espenberg, Mikk, Soosaar, Kaido, Kasak, Kuno, Thayamkottu, Sandeep, Schindler, Thomas, Ranniku, Reti, Sohar, Kristina, Malaverri, Lizardo Fachin, Melling, Lulie, Mander, Ulo | Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity | |
| Impacts of extreme drought and heatwave events on evergreen forests in warm and humid climate regions | Ge, Yangfei, Zou, Mijun, Ding, Yali, Jia, Weijia, Shen, Jiale, Liu, Rui, Lin, Wenpeng | Photosynthesis, Primary Production, Vegetation Productivity | |
| A comparison of machine learning algorithms for predicting gross primary | Agarwal, Geetika, Deb Burman, Pramit Kumar, Kulkarni, Vrushali Y, Kosamkar, Pranali K | Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Leaf Characteristics, Photosynthetically Active Radiation, Photosynthesis, Primary Production, Vegetation Productivity | |
| Drought assessment and development trend in Mu Us Sandy Land based on | Lie, Liang, Xiaohan, Wang, Yan, Chao, Jiamin, Li, Yonghua, Zhu | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Air Temperature, Specific Humidity, Evapotranspiration, Wind Speed, Rain, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Cover, Snow Depth, Snow Water Equivalent, Runoff, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Photosynthesis, Primary Production, Vegetation Productivity | |
| DroughtInduced Weakening of Temperature Control on Ecosystem Carbon Uptake Across Northern Lands | Wu, Haohao, Fu, Congsheng, Yu, Kailiang, Ciais, Philippe, Ballantyne, Ashley, Liu, Zhihua, Rogers, Brendan M., Piao, Shilong, Chen, Yizhao, Zhang, Lingling, Wu, Huawu, Fan, Xingwang, Chen, Jianyao, Yang, Guishan | Photosynthesis, Primary Production, Vegetation Productivity | |
| Dynamic assessment and zoning strategies for ecosystem health in Poyang | Zou, Zhiyao, Luo, Songkai, Duan, Ping | Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Photosynthesis, Primary Production, Vegetation Productivity | |
| Ecological problem identification based on spatial and temporal dynamics | Zhang, Rui, Liu, Huamin, Xu, Zhichao, Zhao, Xinchuan, Wen, Lu, Zhuo, Yi, Wang, Lixin | Leaf Characteristics, Photosynthetically Active Radiation, 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) | |
| Ecosystem leaf area, gross primary production, and evapotranspiration responses to wildfire in the Columbia River basin | Shi, Mingjie, McDowell, Nate, Huang, Huilin, Zahura, Faria, Li, Lingcheng, Chen, Xingyuan | Land Use/Land Cover Classification, Photosynthesis, Primary Production, Vegetation Productivity, Evapotranspiration, Latent Heat Flux |
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 Sort descending | Description | Units | Data Type | Fill Value | Valid Range | Scale Factor | Offset |
|---|---|---|---|---|---|---|---|
| Gpp_500m | Gross Primary Productivity | kg C/m² | int16 | 32761 | 0 to 30000 | 0.0001 | N/A |
| PsnNet_500m | Net Photosynthesis | kg C/m² | int16 | 32761 | -30000 to 30000 | 0.0001 | N/A |
| Psn_QC_500m | Quality control indicators | N/A | uint8 | 255 | 0 to 254 | N/A | N/A |