מערכת התחזית האקלימית (CFS) של המרכזים הלאומיים לחיזוי סביבתי (NCEP) היא מודל משולב לחלוטין שמייצג את האינטראקציה בין האטמוספירה, האוקיינוסים, הקרקע וקרח הים של כדור הארץ. מערכת CFS פותחה ב-Environmental Modeling Center (EMC) ב-NCEP. ב-30 במרץ 2011, מערכת CFS המבצעית שודרגה לגרסה 2 (CFSv2).
התחזיות מאותחלות ארבע פעמים ביום (בשעות 00:00, 06:00, 12:00 ו-18:00 לפי שעון UTC). זהו אותו מודל ששימש ליצירת הניתוח מחדש של מערכת תחזית האקלים של NCEP (CFSR), ומטרת מערך הנתונים CFSv2 היא להרחיב את CFSR. אנחנו מבצעים המרה רק של קבוצת משנה של נתונים מרובי-פסים מקבצים שתואמים ל-cdas1.t??z.sfluxgrbf06.grib2.
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מאפייני התמונה
מאפייני התמונה
שם
סוג
תיאור
end_hour
נקודה צפה בדיוק כפול (Double Precision Floating Point)
שעת סיום
start_hour
נקודה צפה בדיוק כפול (Double Precision Floating Point)
שעת התחלה
תנאים והגבלות
תנאים והגבלות
הנתונים, המידע והמוצרים של NOAA, ללא קשר לשיטת המסירה,
לא כפופים לזכויות יוצרים ואין הגבלות על השימוש בהם על ידי הציבור. אחרי שמתקבלים, אפשר להשתמש בהם לכל מטרה חוקית. הנתונים שצוינו למעלה הם נחלת הכלל, ואנחנו מספקים אותם ללא הגבלות על שימוש והפצה. מידע נוסף זמין באתר של NWS.
ציטוטים ביבליוגרפיים
ציטוטים ביבליוגרפיים:
Saha, S., et al. 2011, updated daily. NCEP Climate Forecast System Version 2 (CFSv2) 6-hourly Products. Research Data Archive at the National Center for Atmospheric Research, Computational and Information Systems Laboratory. https://doi.org/10.5065/D61C1TXF.
הגישה האחרונה: dd mmm yyyy.
מערכת התחזית האקלימית (CFS) של המרכזים הלאומיים לחיזוי סביבתי (NCEP) היא מודל משולב לחלוטין שמייצג את האינטראקציה בין האטמוספירה, האוקיינוסים, היבשה וקרח הים של כדור הארץ. מערכת CFS פותחה במרכז למודלים סביבתיים (EMC) ב-NCEP. ב-… במרץ, מערכת CFS המבצעית שודרגה לגרסה 2 (CFSv2).
[null,null,[],[[["\u003cp\u003eThe NOAA CFSv2 dataset provides 6-hourly global forecasts of atmospheric, oceanic, land, and sea ice variables from 1979 to 2024.\u003c/p\u003e\n"],["\u003cp\u003eIt is produced by the National Centers for Environmental Prediction (NCEP) using the Climate Forecast System version 2 (CFSv2) model.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset includes variables such as temperature, precipitation, radiation, wind, and soil moisture at a spatial resolution of approximately 22 kilometers.\u003c/p\u003e\n"],["\u003cp\u003eData is freely available and can be accessed and analyzed through Google Earth Engine.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset extends the NCEP Climate Forecast System Reanalysis (CFSR) and is valuable for climate monitoring, forecasting, and research applications.\u003c/p\u003e\n"]]],["The NCEP CFSv2 dataset, provided by NOAA, offers 6-hourly climate forecasts from 1979-01-01 to 2025-02-22, derived from a coupled Earth model. Data includes surface fluxes, temperature, humidity, precipitation, radiation, and soil moisture across 22 bands. Forecasts are initialized four times daily, with data accessible via Earth Engine using the `ee.ImageCollection(\"NOAA/CFSV2/FOR6H\")` snippet. The data, having no usage restrictions, can be used freely.\n"],null,["Dataset Availability\n: 1979-01-01T00:00:00Z--2025-08-31T12:00:00Z\n\nDataset Provider\n:\n\n\n [NOAA NWS National Centers for Environmental Prediction (NCEP)](https://cfs.ncep.noaa.gov/)\n\nCadence\n: 6 Hours\n\nTags\n:\n[climate](/earth-engine/datasets/tags/climate) [daylight](/earth-engine/datasets/tags/daylight) [flux](/earth-engine/datasets/tags/flux) [forecast](/earth-engine/datasets/tags/forecast) [geophysical](/earth-engine/datasets/tags/geophysical) [ncep](/earth-engine/datasets/tags/ncep) [noaa](/earth-engine/datasets/tags/noaa) [nws](/earth-engine/datasets/tags/nws) [precipitation](/earth-engine/datasets/tags/precipitation) [radiation](/earth-engine/datasets/tags/radiation) [snow](/earth-engine/datasets/tags/snow) [temperature](/earth-engine/datasets/tags/temperature) [vapor](/earth-engine/datasets/tags/vapor) [water](/earth-engine/datasets/tags/water) [weather](/earth-engine/datasets/tags/weather) \n\nDescription \nThe National Centers for Environmental Prediction (NCEP) Climate Forecast\nSystem (CFS) is a fully coupled model representing the interaction between\nthe Earth's atmosphere, oceans, land, and sea ice. CFS was developed at the\nEnvironmental Modeling Center (EMC) at NCEP. The operational CFS was\nupgraded to version 2 (CFSv2) on March 30, 2011.\n\nForecasts are initialized four times per day (0000, 0600, 1200, and 1800\nUTC). This is the same model that was used to create the NCEP Climate\nForecast System Reanalysis (CFSR), and the purpose of the CFSv2 dataset is\nto extend CFSR. We ingest only a subset of bands from files matching\ncdas1.t??z.sfluxgrbf**06**.grib2.\n\nFor more information about CFS, please see the [CFS NOAA site](https://cfs.ncep.noaa.gov/).\n\nBands\n\n\n**Pixel Size**\n\n22264 meters\n\n**Bands**\n\n| Name | Units | Min | Max | Pixel Size | Description |\n|-----------------------------------------------------------------------|---------------|----------|-----------|------------|---------------------------------------------------------------|\n| `Downward_Long-Wave_Radp_Flux_surface_6_Hour_Average` | W/m\\^2 | 41.76\\* | 532.67\\* | meters | Downward long-wave radiation flux at surface, 6-hour average |\n| `Downward_Short-Wave_Radiation_Flux_surface_6_Hour_Average` | W/m\\^2 | 0\\* | 1125.23\\* | meters | Downward short-wave radiation flux at surface, 6-hour average |\n| `Geopotential_height_surface` | gpm | -292\\* | 5938.65\\* | meters | Geopotential height at surface |\n| `Latent_heat_net_flux_surface_6_Hour_Average` | W/m\\^2 | -628\\* | 2357\\* | meters | Latent heat net flux at surface, 6-hour average |\n| `Maximum_specific_humidity_at_2m_height_above_ground_6_Hour_Interval` | Mass fraction | 0\\* | 0.1\\* | meters | Maximum specific humidity 2m above ground, 6-hour interval |\n| `Maximum_temperature_height_above_ground_6_Hour_Interval` | K | 189.8\\* | 334.89\\* | meters | Maximum temperature 2m above ground, 6-hour interval |\n| `Minimum_specific_humidity_at_2m_height_above_ground_6_Hour_Interval` | Mass fraction | 0\\* | 0.02\\* | meters | Minimum specific humidity 2m above ground, 6-hour interval |\n| `Minimum_temperature_height_above_ground_6_Hour_Interval` | K | 188.39\\* | 324.39\\* | meters | Minimum temperature 2m above ground, 6-hour interval |\n| `Potential_Evaporation_Rate_surface_6_Hour_Average` | W/m\\^2 | -202\\* | 6277\\* | meters | Potential evaporation rate at surface, 6-hour average |\n| `Precipitation_rate_surface_6_Hour_Average` | kg/m\\^2/s | 0\\* | 0.03\\* | meters | Precipitation rate at surface, 6-hour average |\n| `Pressure_surface` | Pa | 47200\\* | 109180\\* | meters | Pressure at surface |\n| `Sensible_heat_net_flux_surface_6_Hour_Average` | W/m\\^2 | -2295\\* | 3112\\* | meters | Sensible heat net flux at surface, 6-hour average |\n| `Specific_humidity_height_above_ground` | Mass fraction | 0\\* | 0.06\\* | meters | Specific humidity 2m above ground |\n| `Temperature_height_above_ground` | K | 188.96\\* | 328.68\\* | meters | Temperature 2m above ground |\n| `u-component_of_wind_height_above_ground` | m/s | -57.2\\* | 57.99\\* | meters | U-component of wind 10m above ground |\n| `Upward_Long-Wave_Radp_Flux_surface_6_Hour_Average` | W/m\\^2 | 59\\* | 757\\* | meters | Upward long-wave radiation flux at surface, 6-hour average |\n| `Upward_Short-Wave_Radiation_Flux_surface_6_Hour_Average` | W/m\\^2 | 0\\* | 812\\* | meters | Upward short-wave radiation flux at surface, 6-hour average |\n| `v-component_of_wind_height_above_ground` | m/s | -53.09\\* | 57.11\\* | meters | V-component of wind 10m above ground |\n| `Volumetric_Soil_Moisture_Content_depth_below_surface_layer_5_cm` | Fraction | 0.02\\* | 1\\* | meters | Volumetric soil moisture content 5cm below surface layer |\n| `Volumetric_Soil_Moisture_Content_depth_below_surface_layer_25_cm` | Fraction | 0.02\\* | 1\\* | meters | Volumetric soil moisture content 25cm below surface layer |\n| `Volumetric_Soil_Moisture_Content_depth_below_surface_layer_70_cm` | Fraction | 0.02\\* | 1\\* | meters | Volumetric soil moisture content 70cm below surface layer |\n| `Volumetric_Soil_Moisture_Content_depth_below_surface_layer_150_cm` | Fraction | 0.02\\* | 1\\* | meters | Volumetric soil moisture content 150cm below surface layer |\n\n\\* estimated min or max value\n\nImage Properties\n\n**Image Properties**\n\n| Name | Type | Description |\n|------------|--------|-------------|\n| end_hour | DOUBLE | End hour |\n| start_hour | DOUBLE | Start hour |\n\nTerms of Use\n\n**Terms of Use**\n\nNOAA data, information, and products, regardless of the method of delivery,\nare not subject to copyright and carry no restrictions on their subsequent\nuse by the public. Once obtained, they may be put to any lawful use. The\nforgoing data is in the public domain and is being provided without\nrestriction on use and distribution. For more information visit the\n[NWS disclaimer site](https://www.weather.gov/disclaimer/).\n\nCitations \nCitations:\n\n- Saha, S., et al. 2011, updated daily. NCEP Climate Forecast System\n Version 2 (CFSv2) 6-hourly Products. Research Data Archive at the National\n Center for Atmospheric Research, Computational and Information Systems\n Laboratory. \u003chttps://doi.org/10.5065/D61C1TXF\u003e.\n Accessed dd mmm yyyy.\n\nDOIs\n\n- \u003chttps://doi.org/10.5065/D61C1TXF\u003e\n\nExplore with Earth Engine **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\nCode Editor (JavaScript) \n\n```javascript\nvar dataset = ee.ImageCollection('NOAA/CFSV2/FOR6H')\n .filter(ee.Filter.date('2018-03-01', '2018-03-14'));\nvar temperatureAboveGround = dataset.select('Temperature_height_above_ground');\nvar visParams = {\n min: 220.0,\n max: 310.0,\n palette: ['blue', 'purple', 'cyan', 'green', 'yellow', 'red'],\n};\nMap.setCenter(-88.6, 26.4, 1);\nMap.addLayer(temperatureAboveGround, visParams, 'Temperature Above Ground');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/NOAA/NOAA_CFSV2_FOR6H) \n[CFSV2: NCEP Climate Forecast System Version 2, 6-Hourly Products](/earth-engine/datasets/catalog/NOAA_CFSV2_FOR6H) \nThe National Centers for Environmental Prediction (NCEP) Climate Forecast System (CFS) is a fully coupled model representing the interaction between the Earth's atmosphere, oceans, land, and sea ice. CFS was developed at the Environmental Modeling Center (EMC) at NCEP. The operational CFS was upgraded to version 2 (CFSv2) on March ... \nNOAA/CFSV2/FOR6H, climate,daylight,flux,forecast,geophysical,ncep,noaa,nws,precipitation,radiation,snow,temperature,vapor,water,weather \n1979-01-01T00:00:00Z/2025-08-31T12:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.5065/D61C1TXF](https://doi.org/https://cfs.ncep.noaa.gov/)\n- [https://doi.org/10.5065/D61C1TXF](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/NOAA_CFSV2_FOR6H)"]]
