The MOD17A3H V6 product provides information about
annual Net Primary Productivity (NPP) at 500m pixel resolution.
Annual NPP is derived from the sum of the 45 8-day Net Photosynthesis
(PSN) products (MOD17A2H) from the given year. The PSN value
is the difference of the GPP and the Maintenance Respiration
(MR) (GPP-MR).
This is a NASA version of this product. Another
version is produced by the Numerical Terradynamic Simulation
Group (NTSG), University of Montana
(UMT). The NTSG version corrects the problem with cloud-contaminated
MODIS LAI-FPAR inputs to the MOD17 algorithm, but its resolution
is 1km. It is ingested into Earth Engine as MODIS/055/MOD17A3.
For further details regarding the differences between the NTSG
and NASA versions of this product, please consult this document
.
Bands
Pixel Size 500 meters
Bands
Name
Units
Min
Max
Scale
Pixel Size
Description
Npp
kg*C/m^2
-3000
32700
0.0001
meters
Net primary productivity
Npp_QC
meters
Quality control bits
Bitmask for Npp_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 >50% 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
Terms of Use
Terms of Use
MODIS data and products acquired through the LP DAAC
have no restrictions on subsequent use, sale, or redistribution.
The MOD17A3H V6 product provides information about annual Net Primary Productivity (NPP) at 500m pixel resolution. Annual NPP is derived from the sum of the 45 8-day Net Photosynthesis (PSN) products (MOD17A2H) from the given year. The PSN value is the difference of the GPP and the Maintenance Respiration (MR) …
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],[],[[["\u003cp\u003eThis MOD17A3H V6 product provides annual Net Primary Productivity (NPP) data at 500m resolution, derived from 8-day Net Photosynthesis products.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset covers the period from 2000-01-01 to 2014-01-01 and has been superseded by a newer version (MODIS/006/MOD17A3HGF).\u003c/p\u003e\n"],["\u003cp\u003eIt's a NASA version, with an alternative 1km resolution version by NTSG addressing cloud contamination issues.\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 yearly global Net Primary Productivity (NPP) data at a 500m resolution from 2000 to 2014. NPP is calculated from the sum of 8-day Net Photosynthesis (PSN) values, derived from Gross Primary Productivity (GPP) minus Maintenance Respiration (MR). Data is available from NASA and the Numerical Terradynamic Simulation Group (NTSG). The dataset includes a quality control (QC) bitmask and is accessible via Google Earth Engine. It's important to note that this dataset has been superseded.\n"],null,["# MOD17A3H.006: Terra Net Primary Production Yearly Global 500m [deprecated]\n\n**Caution:** This dataset has been superseded by [MODIS/006/MOD17A3HGF](/earth-engine/datasets/catalog/MODIS_006_MOD17A3HGF). \n\nDataset Availability\n: 2000-01-01T00:00:00Z--2014-01-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [NASA LP DAAC at the USGS EROS Center](https://doi.org/10.5067/MODIS/MOD17A3H.006)\n\nCadence\n: 1 Year\n\nTags\n:\n global \n gpp \n mod17a3 \n modis \n nasa \n npp \n photosynthesis \n plant-productivity \n productivity \n psn \n terra \n usgs \nyearly \n\n#### Description\n\nThe MOD17A3H V6 product provides information about\nannual Net Primary Productivity (NPP) at 500m pixel resolution.\nAnnual NPP is derived from the sum of the 45 8-day Net Photosynthesis\n(PSN) products (MOD17A2H) from the given year. The PSN value\nis the difference of the GPP and the Maintenance Respiration\n(MR) (GPP-MR).\n\nThis is a NASA version of this product. Another\nversion is produced by the Numerical Terradynamic Simulation\nGroup ([NTSG](https://www.ntsg.umt.edu)), University of Montana\n(UMT). The NTSG version corrects the problem with cloud-contaminated\nMODIS LAI-FPAR inputs to the MOD17 algorithm, but its resolution\nis 1km. It is ingested into Earth Engine as MODIS/055/MOD17A3.\n\nFor further details regarding the differences between the NTSG\nand NASA versions of this product, please consult [this document](https://lpdaac.usgs.gov/documents/188/MOD17_NTSG_Note.pdf).\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| `Npp` | kg\\*C/m\\^2 | -3000 | 32700 | 0.0001 | meters | Net primary productivity |\n| `Npp_QC` | | | | | meters | Quality control bits |\n| Bitmask for Npp_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/MOD17A3H.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/MOD17A3H')\n .filter(ee.Filter.date('2014-01-01', '2015-05-01'));\nvar npp = dataset.select('Npp');\nvar nppVis = {\n min: 0,\n max: 19000,\n palette: ['bbe029', '0a9501', '074b03'],\n};\nMap.setCenter(6.746, 46.529, 2);\nMap.addLayer(npp, nppVis, 'NPP');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/MODIS/MODIS_006_MOD17A3H) \n[MOD17A3H.006: Terra Net Primary Production Yearly Global 500m \\[deprecated\\]](/earth-engine/datasets/catalog/MODIS_006_MOD17A3H) \nThe MOD17A3H V6 product provides information about annual Net Primary Productivity (NPP) at 500m pixel resolution. Annual NPP is derived from the sum of the 45 8-day Net Photosynthesis (PSN) products (MOD17A2H) from the given year. The PSN value is the difference of the GPP and the Maintenance Respiration (MR) ... \nMODIS/006/MOD17A3H, global,gpp,mod17a3,modis,nasa,npp,photosynthesis,plant-productivity,productivity,psn,terra,usgs,yearly \n2000-01-01T00:00:00Z/2014-01-01T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.5067/MODIS/MOD17A3H.006](https://doi.org/https://doi.org/10.5067/MODIS/MOD17A3H.006)\n- [https://doi.org/10.5067/MODIS/MOD17A3H.006](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/MODIS_006_MOD17A3H)"]]
