The MYD17A2H V6 Gross Primary Productivity (GPP) product
is a cumulative 8-day composite with a 500m resolution. The product
is based on the radiation-use efficiency concept and can be potentially
used as inputs to data models to calculate terrestrial energy,
carbon, water cycle processes, and biogeochemistry of vegetation.
The MYD17A2H V6 Gross Primary Productivity (GPP) product is a cumulative 8-day composite with a 500m resolution. The product is based on the radiation-use efficiency concept and can be potentially used as inputs to data models to calculate terrestrial energy, carbon, water cycle processes, and biogeochemistry of vegetation. Documentation: User's …
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],[],[[["\u003cp\u003eThis MODIS/006/MYD17A2H dataset has been deprecated and replaced by MODIS/061/MYD17A2H.\u003c/p\u003e\n"],["\u003cp\u003eIt provides Aqua Gross Primary Productivity (GPP) data with an 8-day, 500m resolution, covering the period from 2002-07-04 to 2023-02-18.\u003c/p\u003e\n"],["\u003cp\u003eGPP is calculated using the radiation-use efficiency concept and can be used to model terrestrial energy, carbon, water cycles, and vegetation biogeochemistry.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset includes GPP, Net Photosynthesis (PsnNet), and quality control (Psn_QC) bands.\u003c/p\u003e\n"],["\u003cp\u003eMODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.\u003c/p\u003e\n"]]],["This dataset provides the MYD17A2H V6 Gross Primary Productivity (GPP) product, an 8-day composite with a 500m resolution, available from 2002-07-04 to 2023-02-18. Key data includes GPP (kg\\*C/m\\^2), PsnNet, and quality control bits. The data, derived from the radiation-use efficiency concept, can be used to model terrestrial energy, carbon, and water cycles. The dataset can be accessed through Google Earth Engine using the provided snippet. It is important to know that this has been superseded by a newer version.\n"],null,["# MYD17A2H.006: Aqua Gross Primary Productivity 8-Day Global 500m [deprecated]\n\n**Caution:** This dataset has been superseded by [MODIS/061/MYD17A2H](/earth-engine/datasets/catalog/MODIS_061_MYD17A2H). \n\nDataset Availability\n: 2002-07-04T00:00:00Z--2023-02-18T00:00:00Z\n\nDataset Provider\n:\n\n\n [NASA LP DAAC at the USGS EROS Center](https://doi.org/10.5067/MODIS/MYD17A2H.006)\n\nCadence\n: 8 Days\n\nTags\n:\n 8-day \n aqua \n global \n gpp \n modis \n myd17a2 \n nasa \n photosynthesis \n plant-productivity \n productivity \n psn \nusgs \n\n#### Description\n\nThe MYD17A2H V6 Gross Primary Productivity (GPP) product\nis a cumulative 8-day composite with a 500m resolution. The product\nis based on the radiation-use efficiency concept and can be potentially\nused as inputs to data models to calculate terrestrial energy,\ncarbon, water cycle processes, and biogeochemistry of vegetation.\n\nDocumentation:\n\n- [User's Guide](https://lpdaac.usgs.gov/documents/495/MOD17_User_Guide_V6.pdf)\n\n- [Algorithm Theoretical Basis Document (ATBD)](https://lpdaac.usgs.gov/documents/95/MOD17_ATBD.pdf)\n\n- [General Documentation](https://ladsweb.modaps.eosdis.nasa.gov/filespec/MODIS/6/MYD17A2H)\n\n### Bands\n\n\n**Pixel Size**\n\n500 meters\n\n**Bands**\n\n| Name | Units | Min | Max | Scale | Pixel Size | Description |\n|----------|------------|-------|------|--------|------------|----------------------------------------------------------------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| `Gpp` | kg\\*C/m\\^2 | 0 | 3000 | 0.0001 | meters | Gross primary production |\n| `PsnNet` | kg\\*C/m\\^2 | -3000 | 3000 | 0.0001 | meters | Net photosynthesis; GPP minus the maintenance respiration (MR) |\n| `Psn_QC` | | | | | meters | Quality control bits |\n| Bitmask for Psn_QC - Bit 0: MODLAND QC bits - 0: Good quality - 1: Other quality - Bit 1: Sensor - 0: Terra - 1: Aqua - Bit 2: Dead detector - 0: Detectors apparently fine for up to 50% of channels 1, 2 - 1: Dead detectors caused \\\u003e50% adjacent detector retrieval - Bits 3-4: Cloud state - 0: Significant clouds NOT present (clear) - 1: Significant clouds WERE present - 2: Mixed cloud present on pixel - 3: Cloud state not defined, assumed clear - Bits 5-7: 5-level confidence quality score - 0: Very best possible - 1: Good, very usable, but not the best - 2: Substandard due to geometry problems - use with caution - 3: Substandard due to other than geometry problems - use with caution - 4: Couldn't retrieve pixel (NOT PRODUCED AT ALL - non-terrestrial biome) - 7: Fill Value ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n\n### Terms of Use\n\n**Terms of Use**\n\nMODIS data and products acquired through the LP DAAC\nhave no restrictions on subsequent use, sale, or redistribution.\n\n### Citations\n\nCitations:\n\n- Please visit [LP DAAC 'Citing Our Data' page](https://lpdaac.usgs.gov/citing_our_data)\n for information on citing LP DAAC datasets.\n\n### DOIs\n\n- \u003chttps://doi.org/10.5067/MODIS/MYD17A2H.006\u003e\n\n### Explore with Earth Engine\n\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.ImageCollection('MODIS/006/MYD17A2H')\n .filter(ee.Filter.date('2018-01-01', '2018-05-01'));\nvar gpp = dataset.select('Gpp');\nvar gppVis = {\n min: 0.0,\n max: 600.0,\n palette: ['bbe029', '0a9501', '074b03'],\n};\nMap.setCenter(6.746, 46.529, 2);\nMap.addLayer(gpp, gppVis, 'GPP');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/MODIS/MODIS_006_MYD17A2H) \n[MYD17A2H.006: Aqua Gross Primary Productivity 8-Day Global 500m \\[deprecated\\]](/earth-engine/datasets/catalog/MODIS_006_MYD17A2H) \nThe MYD17A2H V6 Gross Primary Productivity (GPP) product is a cumulative 8-day composite with a 500m resolution. The product is based on the radiation-use efficiency concept and can be potentially used as inputs to data models to calculate terrestrial energy, carbon, water cycle processes, and biogeochemistry of vegetation. Documentation: User's ... \nMODIS/006/MYD17A2H, 8-day,aqua,global,gpp,modis,nasa,photosynthesis,plant-productivity,productivity,psn,usgs \n2002-07-04T00:00:00Z/2023-02-18T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.5067/MODIS/MYD17A2H.006](https://doi.org/https://doi.org/10.5067/MODIS/MYD17A2H.006)\n- [https://doi.org/10.5067/MODIS/MYD17A2H.006](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/MODIS_006_MYD17A2H)"]]
