El conjunto de datos de producción primaria neta (PPN) de MODIS de CONUS estima la PPN con la reflectancia de superficie de MODIS para CONUS. El NPP es la cantidad de carbono que capturan las plantas en un ecosistema, después de tener en cuenta las pérdidas debidas a la respiración. El NPP se calcula con el algoritmo MOD17 (consulta la Guía del usuario de MOD17) con la reflectancia de la superficie de MODIS, gridMET y la base de datos nacional de cobertura del suelo.
Bandas
Tamaño del píxel 250 metros
Bandas
Nombre
Unidades
Mín.
Máx.
Escala
Tamaño de los píxeles
Descripción
annualNPP
kg*C/m²
0
65535
0.0001
metros
Productividad primaria neta anual
QC
%
0
100
metros
Es el porcentaje de valores del NDVI completados.
Condiciones de Uso
Condiciones de Uso
Esta obra es de dominio público y no tiene restricciones conocidas de derechos de autor. Los usuarios deben citar correctamente la fuente utilizada en la creación de los informes y las publicaciones que resulten del uso de este conjunto de datos, y anotar la fecha en la que se adquirieron los datos.
Citas
Citas:
Robinson, N.P., B.W. Allred, W.K. Smith, M.O. Jones, A. Moreno, T.A., Erickson, D.E., Naugle, D.B. y Running, S.W. 2018. Producción primaria terrestre para la zona contigua de Estados Unidos derivada de Landsat 30 m y MODIS 250 m. Remote Sensing in Ecology and Conservation.
doi:10.1002/rse2.74
El conjunto de datos de producción primaria neta (PPN) de MODIS de CONUS estima la PPN con la reflectancia de superficie de MODIS para CONUS. El NPP es la cantidad de carbono que capturan las plantas en un ecosistema, después de tener en cuenta las pérdidas debidas a la respiración. El NPP se calcula con el algoritmo MOD17 (consulta la Guía del usuario de MOD17) con la reflectancia de la superficie de MODIS…
[null,null,[],[[["\u003cp\u003eThe MODIS Net Primary Production (NPP) CONUS dataset estimates the net amount of carbon captured by plants in the CONUS region, accounting for respiration losses.\u003c/p\u003e\n"],["\u003cp\u003eIt utilizes the MOD17 algorithm, MODIS Surface Reflectance, gridMET, and the National Land Cover Database for its calculations.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset, provided by the University of Montana NTSG, covers the period from 2001 to 2019 at a 250-meter resolution.\u003c/p\u003e\n"],["\u003cp\u003eNPP values are expressed in kilograms of carbon per square meter and include a quality control band indicating the percentage of gap-filled NDVI values.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset is in the public domain and is free to use, with proper citation encouraged.\u003c/p\u003e\n"]]],[],null,["# MODIS Net Primary Production CONUS\n\nDataset Availability\n: 2001-01-01T00:00:00Z--2019-01-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [University of Montana Numerical Terradynamic Simulation Group (NTSG)](https://www.ntsg.umt.edu/project/landsat/landsat-productivity.php)\n\nCadence\n: 1 Year\n\nTags\n:\n[conus](/earth-engine/datasets/tags/conus) [gridmet-derived](/earth-engine/datasets/tags/gridmet-derived) [mod09q1](/earth-engine/datasets/tags/mod09q1) [mod17](/earth-engine/datasets/tags/mod17) [modis](/earth-engine/datasets/tags/modis) [nlcd-derived](/earth-engine/datasets/tags/nlcd-derived) [npp](/earth-engine/datasets/tags/npp) [photosynthesis](/earth-engine/datasets/tags/photosynthesis) [plant-productivity](/earth-engine/datasets/tags/plant-productivity) [production](/earth-engine/datasets/tags/production) [productivity](/earth-engine/datasets/tags/productivity) [yearly](/earth-engine/datasets/tags/yearly) \n\n#### Description\n\nThe MODIS Net Primary Production (NPP) CONUS dataset estimates NPP using\nMODIS Surface Reflectance for CONUS. NPP is the amount of\ncarbon captured by plants in an ecosystem, after accounting for losses due to\nrespiration. NPP is calculated using the MOD17 algorithm (see [MOD17 User\nGuide](https://www.ntsg.umt.edu/files/modis/MOD17UsersGuide2015_v3.pdf)) with\nMODIS Surface Reflectance, gridMET, and the National Land Cover Database.\n\n### Bands\n\n\n**Pixel Size**\n\n250 meters\n\n**Bands**\n\n| Name | Units | Min | Max | Scale | Pixel Size | Description |\n|-------------|------------|-----|-------|--------|------------|---------------------------------------|\n| `annualNPP` | kg\\*C/m\\^2 | 0 | 65535 | 0.0001 | meters | Annual net primary productivity |\n| `QC` | % | 0 | 100 | | meters | Percentage of gap-filled NDVI values. |\n\n### Terms of Use\n\n**Terms of Use**\n\nThis work is in the public domain and is free of known copyright\nrestrictions. Users should properly cite the source used in the creation of\nany reports and publications resulting from the use of this dataset and note\nthe date when the data was acquired.\n\n### Citations\n\nCitations:\n\n- Robinson, N.P., B.W. Allred, W.K. Smith, M.O. Jones, A. Moreno, T.A.\n Erickson, D.E. Naugle, and S.W. Running. 2018. Terrestrial primary\n production for the conterminous United States derived from Landsat 30 m and\n MODIS 250 m. Remote Sensing in Ecology and Conservation.\n [doi:10.1002/rse2.74](https://doi.org/10.1002/rse2.74)\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('UMT/NTSG/v2/MODIS/NPP')\n .filter(ee.Filter.date('2016-01-01', '2016-12-31'));\nvar npp = dataset.select('annualNPP');\nvar nppVis = {\n min: 0.0,\n max: 20000.0,\n palette: ['bbe029', '0a9501', '074b03'],\n};\nMap.setCenter(-98.26, 39.32, 5);\nMap.addLayer(npp, nppVis, 'NPP');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/UMT/UMT_NTSG_v2_MODIS_NPP) \n[MODIS Net Primary Production CONUS](/earth-engine/datasets/catalog/UMT_NTSG_v2_MODIS_NPP) \nThe MODIS Net Primary Production (NPP) CONUS dataset estimates NPP using MODIS Surface Reflectance for CONUS. NPP is the amount of carbon captured by plants in an ecosystem, after accounting for losses due to respiration. NPP is calculated using the MOD17 algorithm (see MOD17 User Guide) with MODIS Surface Reflectance, ... \nUMT/NTSG/v2/MODIS/NPP, conus,gridmet-derived,mod09q1,mod17,modis,nlcd-derived,npp,photosynthesis,plant-productivity,production,productivity,yearly \n2001-01-01T00:00:00Z/2019-01-01T00:00:00Z \n24.42 -124.84 49.72 -64.82 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://www.ntsg.umt.edu/project/landsat/landsat-productivity.php)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/UMT_NTSG_v2_MODIS_NPP)"]]
