MODIS 순 일차 생산량 (NPP) CONUS 데이터 세트는 CONUS의 MODIS 표면 반사율을 사용하여 NPP를 추정합니다. NPP는 호흡으로 인한 손실을 고려한 후 생태계에서 식물에 의해 포착된 탄소의 양입니다. NPP는 MODIS 표면 반사율, gridMET, National Land Cover Database와 함께 MOD17 알고리즘 (MOD17 사용자 가이드 참고)을 사용하여 계산됩니다.
대역
픽셀 크기 250미터
대역
이름
단위
최소
최대
확장
픽셀 크기
설명
annualNPP
kg*C/m^2
0
65535
0.0001
미터
연간 순기초 생산성
QC
%
0
100
미터
갭이 채워진 NDVI 값의 비율입니다.
이용약관
이용약관
이 저작물은 공개 도메인에 속하며 알려진 저작권 제한이 없습니다. 사용자는 이 데이터 세트의 사용으로 생성된 보고서 및 간행물에 사용된 소스를 적절하게 인용하고 데이터가 획득된 날짜를 기록해야 합니다.
인용
인용:
Robinson, N.P., B.W. Allred, W.K. Smith, M.O. Jones, A. Moreno, T.A.
Erickson, D.E. Naugle, and S.W. Running. 2018년. Landsat 30m 및 MODIS 250m에서 파생된 미국 본토의 육상 1차 생산량입니다. Remote Sensing in Ecology and Conservation.
doi:10.1002/rse2.74
MODIS 순 일차 생산량 (NPP) CONUS 데이터 세트는 CONUS의 MODIS 표면 반사율을 사용하여 NPP를 추정합니다. NPP는 호흡으로 인한 손실을 고려한 후 생태계에서 식물이 포착한 탄소의 양입니다. NPP는 MODIS 표면 반사율을 사용하여 MOD17 알고리즘 (MOD17 사용자 가이드 참고)으로 계산됩니다.
[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)"]]
