Zbiór danych NASA NEX-GDDP zawiera globalne scenariusze klimatyczne o zmniejszonej skali, które pochodzą z modeli ogólnej cyrkulacji (GCM) przeprowadzonych w ramach projektu Coupled Model Intercomparison Project Phase 5 (CMIP5, patrz Taylor i in. 2012) i w ramach dwóch z czterech scenariuszy emisji gazów cieplarnianych znanych jako Representative Concentration Pathways (RCP, patrz Meinshausen i in. 2011).
Modele CMIP5 GCM zostały opracowane na potrzeby piątego raportu oceniającego Międzyrządowego Zespołu ds. Zmian Klimatu (IPCC AR5).
Ten zbiór danych został przygotowany przez Climate Analytics Group i NASA Ames Research Center przy użyciu NASA Earth Exchange i jest rozpowszechniany przez NASA Center for Climate Simulation (NCCS).
Pasma
Rozmiar piksela 27830 m
Pasma
Nazwa
Jednostki
Minimum
Maks.
Rozmiar piksela
Opis
pr
kg/m^2/s
0*
0,42*
metry
Średnia dzienna wartość opadów na powierzchni; obejmuje zarówno fazę ciekłą, jak i stałą ze wszystkich rodzajów chmur (zarówno wielkoskalowych, jak i konwekcyjnych).
tasmin
K
165,31*
318,89*
metry
Średnia dzienna minimalnej temperatury powietrza przy powierzchni ziemi
tasmax
K
188,38*
335,13*
metry
Średnia dzienna maksymalnej temperatury powietrza przy powierzchni ziemi
* szacowana wartość minimalna lub maksymalna
Właściwości obrazu
Właściwości obrazu
Nazwa
Typ
Opis
model
CIĄG ZNAKÓW
Nazwa modelu CMIP5. Może przyjmować jedną z wartości: „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”.
scenariusz
CIĄG ZNAKÓW
Nazwa scenariusza CMIP5. Może to być jedna z wartości: „historical”, „rcp45”, „rcp85”, gdzie „historical” oznacza retrospektywne uruchomienia modelu (sprzed 2006 r.).
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
Zbiór danych NASA NEX-GDDP zawiera zmniejszone scenariusze klimatyczne dla całego świata, które pochodzą z modeli ogólnej cyrkulacji (GCM) przeprowadzonych w ramach projektu Coupled Model Intercomparison Project Phase 5 (CMIP5, patrz Taylor i in. 2012) i w ramach 2 z 4 scenariuszy emisji gazów cieplarnianych znanych jako…
[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)"]]