El conjunto de datos de NEX-GDDP de la NASA se compone de situaciones climáticas a escala reducida para todo el planeta, 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, consulta Taylor et al., 2012) y en dos de las cuatro situaciones de emisiones de gases de efecto invernadero conocidas como Rutas de Concentración Representativas (RCP, consulta Meinshausen et al., 2011).
Las ejecuciones del GCM del CMIP5 se desarrollaron en apoyo del Quinto Informe de Evaluación del Panel Intergubernamental sobre el Cambio Climático (IPCC AR5).
Este conjunto de datos fue preparado por el Climate Analytics Group y el NASA Ames Research Center con NASA Earth Exchange, y distribuido por el NASA Center for Climate Simulation (NCCS).
Bandas
Tamaño de píxel 27830 metros
Bandas
Nombre
Unidades
Mín.
Máx.
Tamaño de los píxeles
Descripción
pr
kg/m²/s
0*
0.42*
metros
Media diaria de la precipitación en la superficie, que incluye las fases líquida y sólida de todos los tipos de nubes (tanto a gran escala como convectivas)
tasmin
K
165.31*
318.89*
metros
Media diaria de la temperatura del aire cerca de la superficie mínima diaria
tasmax
K
188.38*
335.13*
metros
Media diaria 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
modelo
STRING
Es el nombre del modelo CMIP5. Puede ser uno de los siguientes: "ACCESS1-0", "bcc-csm1-1", "BNU-ESM", "CanESM2", "CCSM4", "CESM1-BGC", "CNRM-CM5", "CSIRO-Mk3-6-0", "GFDL-CM3", "GFDL-ESM2G", "GFDL-ESM2M", "inmcm4", "IPSL-CM5A-LR", "IPSL-CM5A-MR", "MIROC-ESM", "MIROC-ESM-CHEM", "MIROC5", "MPI-ESM-LR", "MPI-ESM-MR", "MRI-CGCM3" o "NorESM1-M".
situación
STRING
Es el nombre del escenario CMIP5. Puede ser uno de los siguientes: "historical", "rcp45" o "rcp85", donde "historical" designa las ejecuciones retrospectivas del modelo (anteriores a 2006).
Thrasher, B., Maurer, E. P., McKellar, C., y Duffy, P. B., 2012: Nota técnica: Corrección del sesgo de los extremos de temperatura diarios simulados por el modelo climático con la asignación de cuantiles. Hydrology and Earth System Sciences,
16(9), 3309-3314.
doi:10.5194/hess-16-3309-2012
El conjunto de datos de NEX-GDDP de la NASA se compone de situaciones climáticas a escala reducida para todo el mundo 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, consulta Taylor et al., 2012) y en dos de las cuatro situaciones de emisiones de gases de efecto invernadero conocidas como…
[null,null,[],[[["\u003cp\u003eThe NASA NEX-GDDP dataset provides downscaled climate scenarios derived from CMIP5 GCM runs, covering two greenhouse gas emissions scenarios (RCPs).\u003c/p\u003e\n"],["\u003cp\u003eIt includes daily projections of precipitation, minimum and maximum near-surface air temperature from 1950 to 2100 at a 27830-meter resolution.\u003c/p\u003e\n"],["\u003cp\u003eDeveloped by the Climate Analytics Group and NASA Ames Research Center, this dataset is publicly available without restrictions.\u003c/p\u003e\n"],["\u003cp\u003eData is available for various CMIP5 models and scenarios, including 'historical', 'rcp45', and 'rcp85'.\u003c/p\u003e\n"],["\u003cp\u003eUsers can explore the dataset and access code examples through the Google Earth Engine platform.\u003c/p\u003e\n"]]],[],null,["# NEX-GDDP: NASA Earth Exchange Global Daily Downscaled Climate Projections\n\nDataset Availability\n: 1950-01-01T00:00:00Z--2100-12-31T00:00:00Z\n\nDataset Provider\n:\n\n\n [NASA / Climate Analytics Group](https://www.nccs.nasa.gov/services/data-collections/land-based-products/nex-gddp)\n\nCadence\n: 1 Day\n\nTags\n:\n[cag](/earth-engine/datasets/tags/cag) [climate](/earth-engine/datasets/tags/climate) [cmip5](/earth-engine/datasets/tags/cmip5) [gddp](/earth-engine/datasets/tags/gddp) [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-GDDP dataset is comprised of downscaled climate scenarios\nfor the globe that are derived from the General Circulation Model (GCM)\nruns conducted under the Coupled Model Intercomparison Project Phase 5\n(CMIP5, see [Taylor et al. 2012](https://journals.ametsoc.org/doi/abs/10.1175/BAMS-D-11-00094.1))\nand across two of the four greenhouse gas emissions scenarios known as\nRepresentative Concentration Pathways (RCPs, see [Meinshausen et\nal. 2011](https://rd.springer.com/article/10.1007%2Fs10584-011-0156-z#page-1)).\nThe CMIP5 GCM runs were developed in support of the Fifth Assessment\nReport of the Intergovernmental Panel on Climate Change (IPCC AR5).\n\nThis dataset 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\n27830 meters\n\n**Bands**\n\n| Name | Units | Min | Max | Pixel Size | Description |\n|----------|-----------|----------|----------|------------|------------------------------------------------------------------------------------------------------------------------------------------|\n| `pr` | kg/m\\^2/s | 0\\* | 0.42\\* | meters | Daily mean of precipitation at surface; includes both liquid and solid phases from all types of clouds (both large-scale and convective) |\n| `tasmin` | K | 165.31\\* | 318.89\\* | meters | Daily mean of the daily-minimum near-surface air temperature |\n| `tasmax` | K | 188.38\\* | 335.13\\* | meters | Daily 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| model | STRING | Name of the CMIP5 model. It is one of 'ACCESS1-0', 'bcc-csm1-1', 'BNU-ESM', 'CanESM2', 'CCSM4', 'CESM1-BGC', 'CNRM-CM5', 'CSIRO-Mk3-6-0', 'GFDL-CM3', 'GFDL-ESM2G', 'GFDL-ESM2M', 'inmcm4', 'IPSL-CM5A-LR', 'IPSL-CM5A-MR', 'MIROC-ESM', 'MIROC-ESM-CHEM', 'MIROC5', 'MPI-ESM-LR', 'MPI-ESM-MR', 'MRI-CGCM3', 'NorESM1-M'. |\n| scenario | STRING | Name of the CMIP5 scenario. It is one of: 'historical', 'rcp45', 'rcp85', where 'historical' designates retrospective model runs (pre-2006). |\n| year | DOUBLE | Calendar year |\n| month | DOUBLE | Calendar month |\n| day | DOUBLE | Calendar day |\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., Maurer, E. P., McKellar, C., \\& Duffy, P. B., 2012:\n Technical Note: Bias correcting climate model simulated daily temperature\n extremes with quantile mapping. Hydrology and Earth System Sciences,\n 16(9), 3309-3314.\n [doi:10.5194/hess-16-3309-2012](https://doi.org/10.5194/hess-16-3309-2012)\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-GDDP')\n .filter(ee.Filter.date('2018-07-01', '2018-07-02'));\nvar minimumAirTemperature = dataset.select('tasmin');\nvar minimumAirTemperatureVis = {\n min: 240.0,\n max: 300.0,\n palette: ['blue', 'purple', 'cyan', 'green', 'yellow', 'red'],\n};\nMap.setCenter(71.72, 52.48, 3.0);\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-GDDP) \n[NEX-GDDP: NASA Earth Exchange Global Daily Downscaled Climate Projections](/earth-engine/datasets/catalog/NASA_NEX-GDDP) \nThe NASA NEX-GDDP dataset is comprised of downscaled climate scenarios for the globe 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 two of the four greenhouse gas emissions scenarios known as ... \nNASA/NEX-GDDP, cag,climate,cmip5,gddp,geophysical,ipcc,nasa,nex,precipitation,temperature \n1950-01-01T00:00:00Z/2100-12-31T00:00:00Z \n-90 -180 90 180 \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-gddp)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/NASA_NEX-GDDP)"]]
