El conjunto de datos NEX-DCP30 de la NASA se compone de situaciones climáticas a escala reducida para el territorio continental de Estados Unidos, que se derivan de las ejecuciones del Modelo de Circulación General (MCG) realizadas en el marco del Proyecto de Intercomparación de Modelos Acoplados, Fase 5 (CMIP5, consulta Taylor et al., 2012) y en las cuatro situaciones de emisiones de gases de efecto invernadero conocidas como Rutas de Concentración Representativas (RCP, consulta Meinshausen et al., 2011) desarrolladas para el Quinto Informe de Evaluación del Grupo Intergubernamental de Expertos sobre el Cambio Climático (IECC AR5). El propósito de estos conjuntos de datos es proporcionar un conjunto de proyecciones de cambio climático de alta resolución y corregidas por sesgo que se pueden usar para evaluar los impactos del cambio climático en los procesos que son sensibles a los gradientes climáticos de escala más fina y los efectos de la topografía local en las condiciones climáticas.
El conjunto de datos contiene proyecciones mensuales que abarcan los períodos de 1950 a 2005 (ejecución retrospectiva) y de 2006 a 2099 (ejecución prospectiva).
Incluye proyecciones reducidas de 33 modelos. No todos los escenarios contienen proyecciones de todos los modelos.
El NEX-DCP30 fue preparado por el Climate Analytics Group y el Centro de Investigación Ames de la NASA con NASA Earth Exchange, y distribuido por el Centro de Simulación Climática de la NASA (NCCS).
Bandas
Tamaño de píxel 927.67 metros
Bandas
Nombre
Unidades
Mín.
Máx.
Tamaño de los píxeles
Descripción
pr
kg/m²/s
0*
0.0016*
metros
Media mensual de la tasa de precipitación diaria en la superficie; incluye las fases líquida y sólida de todos los tipos de nubes (tanto a gran escala como convectivas)
tasmin
K
235.91*
308.97*
metros
Media mensual de la temperatura mínima diaria del aire cerca de la superficie
tasmax
K
246.4*
325.53*
metros
Promedio mensual de la temperatura del aire cerca de la superficie máxima diaria
* Valor mínimo o máximo estimado
Propiedades de imágenes
Propiedades de la imagen
Nombre
Tipo
Descripción
situación
STRING
Es el nombre del escenario CMIP5. Puede ser uno de los siguientes: "historical", "rcp26", "rcp45", "rcp60" o "rcp85", donde "historical" designa las ejecuciones del modelo retrospectivo (anteriores a 2006).
modelo
STRING
Es el nombre del modelo CMIP5. Puede ser uno de los siguientes: "ACCESS1-0", "bcc-csm1-1", "bcc-csm1-1-m", "BNU-ESM", "CanESM2", "CCSM4", "CESM1-BGC", "CESM1-CAM5", "CMCC-CM", "CNRM-CM5", "CSIRO-Mk3-6-0", "FGOALS-g2", "FIO-ESM", "GFDL-CM3", "GFDL-ESM2G", "GFDL-ESM2M", "GISS-E2-H-CC", "GISS-E2-R", "GISS-E2-R-CC", "HadGEM2-AO", "HadGEM2-CC", "HadGEM2-ES", "inmcm4", "IPSL-CM5A-LR", "IPSL-CM5A-MR", "IPSL-CM5B-LR", "MIROC5", "MIROC-ESM", "MIROC-ESM-CHEM", "MPI-ESM-LR", "MPI-ESM-MR", "MRI-CGCM3" o "NorESM1-M".
Thrasher, B., J. Xiong, W. Wang, F. Melton, A. Michaelis y R. Nemani
(2013), Downscaled Climate Projections Suitable for Resource Management,
Eos Trans. AGU, 94(37), 321.
doi:10.1002/2013EO370002
El conjunto de datos NEX-DCP30 de la NASA se compone de situaciones climáticas a escala reducida para el territorio continental de Estados Unidos, que se derivan de las ejecuciones del Modelo de Circulación General (MCG) realizadas en el marco de la fase 5 del Proyecto de Intercomparación de Modelos Acoplados (CMIP5, consulte Taylor et al., 2012) y en los cuatro escenarios de emisiones de gases de efecto invernadero conocidos como…
[null,null,[],[[["\u003cp\u003eNEX-DCP30 provides downscaled climate projections for the conterminous United States, derived from CMIP5 models and RCP scenarios.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset includes monthly projections of precipitation and temperature from 1950 to 2099 at a 927-meter resolution.\u003c/p\u003e\n"],["\u003cp\u003eProjections are available for 33 climate models and four greenhouse gas emissions scenarios (RCPs).\u003c/p\u003e\n"],["\u003cp\u003eNEX-DCP30 was developed by the Climate Analytics Group and NASA, and is freely available for use and distribution.\u003c/p\u003e\n"],["\u003cp\u003eData can be accessed and analyzed using Google Earth Engine.\u003c/p\u003e\n"]]],["The NASA NEX-DCP30 dataset provides downscaled climate projections for the US from 1950 to 2099, derived from CMIP5 GCM runs and IPCC AR5 emissions scenarios. The data, available monthly, includes precipitation rate (`pr`), minimum (`tasmin`) and maximum (`tasmax`) air temperature. It offers projections from 33 models, across historical and future scenarios. The dataset is accessible via the Earth Engine with the snippet: `ee.ImageCollection(\"NASA/NEX-DCP30\")` and is in the public domain.\n"],null,["# NEX-DCP30: NASA Earth Exchange Downscaled Climate Projections\n\nDataset Availability\n: 1950-01-01T00:00:00Z--2099-12-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [NASA / Climate Analytics Group](https://www.nccs.nasa.gov/services/data-collections/land-based-products/nex-dcp30)\n\nCadence\n: 1 Month\n\nTags\n:\n[cag](/earth-engine/datasets/tags/cag) [climate](/earth-engine/datasets/tags/climate) [cmip5](/earth-engine/datasets/tags/cmip5) [geophysical](/earth-engine/datasets/tags/geophysical) [ipcc](/earth-engine/datasets/tags/ipcc) [nasa](/earth-engine/datasets/tags/nasa) [nex](/earth-engine/datasets/tags/nex) [precipitation](/earth-engine/datasets/tags/precipitation) [temperature](/earth-engine/datasets/tags/temperature) \n\n#### Description\n\nThe NASA NEX-DCP30 dataset is comprised of downscaled climate scenarios\nfor the conterminous United States that are derived from the General\nCirculation Model (GCM) runs conducted under the Coupled Model\nIntercomparison Project Phase 5 (CMIP5, see [Taylor et al. 2012](https://journals.ametsoc.org/doi/abs/10.1175/BAMS-D-11-00094.1))\nand across the four greenhouse gas emissions scenarios known as\nRepresentative Concentration Pathways (RCPs, see [Meinshausen et al. 2011](https://rd.springer.com/article/10.1007%2Fs10584-011-0156-z#page-1))\ndeveloped for the Fifth Assessment Report of the Intergovernmental Panel\non Climate Change (IPCC AR5). The purpose of these datasets is to provide\na set of high resolution, bias-corrected climate change projections that\ncan be used to evaluate climate change impacts on processes that are\nsensitive to finer-scale climate gradients and the effects of local\ntopography on climate conditions.\n\nThe dataset contains monthly projections covering the periods from 1950\nthrough 2005 (Retrospective Run) and from 2006 to 2099 (Prospective Run).\nIt includes downscaled projections from 33 models. Not every\nscenario contains projections from every model.\n\nNEX-DCP30 was prepared by the Climate Analytics Group and NASA Ames\nResearch Center using the NASA Earth Exchange, and distributed by the NASA\nCenter for Climate Simulation (NCCS).\n\n### Bands\n\n\n**Pixel Size**\n\n927.67 meters\n\n**Bands**\n\n| Name | Units | Min | Max | Pixel Size | Description |\n|----------|-----------|----------|----------|------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `pr` | kg/m\\^2/s | 0\\* | 0.0016\\* | meters | Monthly mean of the daily precipitation rate at surface; includes both liquid and solid phases from all types of clouds (both large-scale and convective) |\n| `tasmin` | K | 235.91\\* | 308.97\\* | meters | Monthly mean of the daily-minimum near-surface air temperature |\n| `tasmax` | K | 246.4\\* | 325.53\\* | meters | Monthly mean of the daily-maximum near-surface air temperature |\n\n\\* estimated min or max value\n\n### Image Properties\n\n**Image Properties**\n\n| Name | Type | Description |\n|----------|--------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| scenario | STRING | Name of the CMIP5 scenario. It is one of: 'historical', 'rcp26', 'rcp45', 'rcp60', 'rcp85', where 'historical' designates retrospective model runs (pre-2006). |\n| model | STRING | Name of the CMIP5 model. It is one of 'ACCESS1-0', 'bcc-csm1-1', 'bcc-csm1-1-m', 'BNU-ESM', 'CanESM2', 'CCSM4', 'CESM1-BGC', 'CESM1-CAM5', 'CMCC-CM', 'CNRM-CM5', 'CSIRO-Mk3-6-0', 'FGOALS-g2', 'FIO-ESM', 'GFDL-CM3', 'GFDL-ESM2G', 'GFDL-ESM2M', 'GISS-E2-H-CC', 'GISS-E2-R', 'GISS-E2-R-CC', 'HadGEM2-AO', 'HadGEM2-CC', 'HadGEM2-ES', 'inmcm4', 'IPSL-CM5A-LR', 'IPSL-CM5A-MR', 'IPSL-CM5B-LR', 'MIROC5', 'MIROC-ESM', 'MIROC-ESM-CHEM', 'MPI-ESM-LR', 'MPI-ESM-MR', 'MRI-CGCM3', 'NorESM1-M'. |\n| metric | DOUBLE | Calendar month |\n\n### Terms of Use\n\n**Terms of Use**\n\nThis dataset is in the public domain and is available\nwithout restriction on use and distribution. See [NASA's\nEarth Science Data \\& Information Policy](https://www.earthdata.nasa.gov/engage/open-data-services-and-software/data-and-information-policy)\nfor additional information.\n\n### Citations\n\nCitations:\n\n- Thrasher, B., J. Xiong, W. Wang, F. Melton, A. Michaelis and R. Nemani\n (2013), Downscaled Climate Projections Suitable for Resource Management,\n Eos Trans. AGU, 94(37), 321.\n [doi:10.1002/2013EO370002](https://doi.org/10.1002/2013EO370002)\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('NASA/NEX-DCP30')\n .filter(ee.Filter.date('2018-07-01', '2018-07-30'));\nvar minimumAirTemperature = dataset.select('tasmin');\nvar minimumAirTemperatureVis = {\n min: 265.0,\n max: 285.0,\n palette: ['blue', 'purple', 'cyan', 'green', 'yellow', 'red'],\n};\nMap.setCenter(-115.356, 38.686, 5);\nMap.addLayer(\n minimumAirTemperature, minimumAirTemperatureVis, 'Minimum Air Temperature');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/NASA/NASA_NEX-DCP30) \n[NEX-DCP30: NASA Earth Exchange Downscaled Climate Projections](/earth-engine/datasets/catalog/NASA_NEX-DCP30) \nThe NASA NEX-DCP30 dataset is comprised of downscaled climate scenarios for the conterminous United States that are derived from the General Circulation Model (GCM) runs conducted under the Coupled Model Intercomparison Project Phase 5 (CMIP5, see Taylor et al. 2012) and across the four greenhouse gas emissions scenarios known as ... \nNASA/NEX-DCP30, cag,climate,cmip5,geophysical,ipcc,nasa,nex,precipitation,temperature \n1950-01-01T00:00:00Z/2099-12-01T00:00:00Z \n24.07 -125.03 53.74 -66.47 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://www.nccs.nasa.gov/services/data-collections/land-based-products/nex-dcp30)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/NASA_NEX-DCP30)"]]
