Il set di dati NASA NEX-GDDP è composto da scenari climatici ridimensionati
per il globo, derivati dalle esecuzioni del modello di circolazione generale (GCM)
condotte nell'ambito del Coupled Model Intercomparison Project Phase 5
(CMIP5, vedi Taylor et al. 2012)
e in due dei quattro scenari di emissioni di gas serra noti come
Representative Concentration Pathways (RCP, vedi Meinshausen et
al. 2011).
Le esecuzioni del modello climatico generale CMIP5 sono state sviluppate a supporto del quinto report di valutazione dell'Intergovernmental Panel on Climate Change (IPCC AR5).
Questo set di dati è stato preparato dal Climate Analytics Group e dal NASA Ames
Research Center utilizzando NASA Earth Exchange e distribuito dal NASA
Center for Climate Simulation (NCCS).
Bande
Dimensioni pixel 27830 metri
Bande
Nome
Unità
Min
Max
Dimensioni dei pixel
Descrizione
pr
kg/m^2/s
0*
0,42*
metri
Media giornaliera delle precipitazioni in superficie; include le fasi liquida e solida di tutti i tipi di nuvole (sia su larga scala che convettive)
tasmin
K
165,31*
318,89*
metri
Media giornaliera della temperatura dell'aria vicino alla superficie minima giornaliera
tasmax
K
188,38*
335,13*
metri
Media giornaliera della temperatura dell'aria vicino alla superficie giornaliera massima
* valore minimo o massimo stimato
Proprietà immagini
Proprietà immagine
Nome
Tipo
Descrizione
modello
STRING
Nome del modello CMIP5. Può assumere uno dei seguenti valori: "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".
scenario
STRING
Nome dello scenario CMIP5. Può essere "historical", "rcp45" o "rcp85", dove "historical" indica
le esecuzioni del modello retrospettive (precedenti al 2006).
Thrasher, B., Maurer, E. P., McKellar, C., & Duffy, P. B., 2012:
Technical Note: Bias correcting climate model simulated daily temperature
extremes with quantile mapping. Hydrology and Earth System Sciences,
16(9), 3309-3314.
doi:10.5194/hess-16-3309-2012
Il set di dati NASA NEX-GDDP è composto da scenari climatici ridimensionati per il globo, derivati dalle esecuzioni del modello di circolazione generale (GCM) condotte nell'ambito del Coupled Model Intercomparison Project Phase 5 (CMIP5, vedi Taylor et al. 2012) e in due dei quattro scenari di emissioni di gas serra noti come…
[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)"]]
