M2T1NXSLV (oder tavg1_2d_slv_Nx) ist eine stündliche, zeitlich gemittelte zweidimensionale Datensammlung in der Modern-Era Retrospective analysis for Research and Applications Version 2 (MERRA-2). Diese Sammlung besteht aus meteorologischen Diagnosen auf häufig verwendeten vertikalen Ebenen, z. B. Lufttemperatur auf 2 Metern (oder auf 10 Metern, 850 hPa, 500 hPa, 250 hPa), Windkomponenten auf 50 Metern (oder auf 2 Metern, 10 Metern, 850 hPa, 500 hPa, 250 hPa), Luftdruck auf Meereshöhe, Oberflächendruck und gesamter niederschlagsfähiger Wasserdampf (oder Eiswasser, flüssiges Wasser). Das Datenfeld wird mit der zentralen Zeit einer Stunde ab 00:30 UTC versehen, z.B.: 00:30, 01:30, ... , 23:30 Uhr UTC.
MERRA-2 ist die neueste Version der globalen atmosphärischen Reanalyse für das Satellitenzeitalter, die vom NASA Global Modeling and Assimilation Office (GMAO) mit dem Goddard Earth Observing System Model (GEOS) Version 5.12.4 erstellt wurde. Das Dataset umfasst den Zeitraum von 1980 bis heute. Die Latenz beträgt etwa 3 Wochen nach Ende eines Monats.
Bänder
Pixelgröße 69.375 Meter
Y-Pixelgröße 55.000 Meter
Bänder
Name
Einheiten
Pixelgröße
Beschreibung
CLDPRS
Pa
Meter
Wolkenoberflächendruck
CLDTMP
K
Meter
Wolkenoberflächentemperatur
DISPH
m
Meter
Höhe ohne Verschiebung der Nullebene
H1000
m
Meter
Höhe bei 1.000 mb
H250
m
Meter
Höhe bei 250 hPa
H500
m
Meter
Höhe bei 500 hPa
H850
m
Meter
Höhe bei 850 hPa
OMEGA500
Pa/s
Meter
Omega bei 500 hPa
PBLTOP
Pa
Meter
Druck am oberen Rand der Grenzschicht
PS
Pa
Meter
Oberflächendruck
Q250
Massenanteil
Meter
Spezifische Luftfeuchtigkeit bei 250 hPa
Q500
Massenanteil
Meter
Spezifische Luftfeuchtigkeit bei 500 hPa
Q850
Massenanteil
Meter
Spezifische Luftfeuchtigkeit bei 850 hPa
QV10M
Massenanteil
Meter
Spezifische Luftfeuchtigkeit in 10 Metern Höhe
QV2M
Massenanteil
Meter
Spezifische Luftfeuchtigkeit in 2 Metern Höhe
SLP
Pa
Meter
Druck auf Meereshöhe
T10M
K
Meter
Lufttemperatur in 10 m Höhe
T250
K
Meter
Lufttemperatur bei 250 hPa
T2MDEW
K
Meter
Taupunkttemperatur in 2 m Höhe
T2MWET
K
Meter
Kühlgrenztemperatur in 2 m Höhe
T2M
K
Meter
Lufttemperatur in 2 Metern Höhe
T500
K
Meter
Lufttemperatur bei 500 hPa
T850
K
Meter
Lufttemperatur bei 850 hPa
TO3
Dobson
Meter
Gesamtes Säulenozo
TOX
kg/m²
Meter
Gesamtsäule mit ungeradem Sauerstoff
TQI
kg/m²
Meter
Gesamtes ausfällbares Eiswasser
TQL
kg/m²
Meter
Gesamtes ausfällbares flüssiges Wasser
TQV
kg/m²
Meter
Gesamter niederschlagsfähiger Wasserdampf
TROPPB
Pa
Meter
Tropopausendruck (TROPP) basierend auf der kombinierten Schätzung
TROPPT
Pa
Meter
Tropopausendruck basierend auf thermischer Schätzung
TROPPV
Pa
Meter
Tropopausendruck basierend auf der EPV-Schätzung
TROPQ
Massenanteil
Meter
Spezifische Feuchtigkeit der Tropopause mit geschätzter gemischter Tropopause (TROPPB)
TROPT
K
Meter
Tropopausentemperatur mit geschätzter Tropp-Mischung
TS
K
Meter
Hautoberflächentemperatur
U10M
m/s
Meter
Wind aus Osten in 10 m Höhe
U250
m/s
Meter
Wind aus Osten bei 250 hPa
U2M
m/s
Meter
Wind aus Osten in 2 m Höhe
U500
m/s
Meter
Wind aus Osten bei 500 hPa
U50M
m/s
Meter
Wind aus Osten in 50 Metern Höhe
U850
m/s
Meter
Wind aus Osten bei 850 hPa
V10M
m/s
Meter
Wind aus Norden in 10 m Höhe
V250
m/s
Meter
Nordwärts gerichteter Wind bei 250 hPa
V2M
m/s
Meter
Wind aus Norden in 2 m Höhe
V500
m/s
Meter
Nordwind bei 500 hPa
V50M
m/s
Meter
Wind aus Norden in 50 Metern Höhe
V850
m/s
Meter
Nordwärts gerichteter Wind bei 850 hPa
ZLCL
m
Meter
Kondensationsniveau
Nutzungsbedingungen
Nutzungsbedingungen
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M2T1NXSLV (oder tavg1_2d_slv_Nx) ist eine stündliche, zeitlich gemittelte zweidimensionale Datenerhebung in der Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA-2). Diese Sammlung besteht aus meteorologischen Diagnosen auf häufig verwendeten vertikalen Ebenen, z. B. Lufttemperatur auf 2 Metern (oder auf 10 Metern, 850 hPa, 500 hPa, 250 hPa), Windkomponenten auf 50 Metern (oder …
[null,null,[],[[["\u003cp\u003eMERRA-2 M2T1NXSLV is an hourly time-averaged dataset providing meteorological diagnostics at various vertical levels.\u003c/p\u003e\n"],["\u003cp\u003eThis NASA dataset, available from 1980 to present, offers data on temperature, wind, pressure, humidity, and more.\u003c/p\u003e\n"],["\u003cp\u003eIt is produced by NASA's Global Modeling and Assimilation Office (GMAO) using the Goddard Earth Observing System Model (GEOS).\u003c/p\u003e\n"],["\u003cp\u003eThe data has a spatial resolution of approximately 55 km and is updated with a latency of about 3 weeks after the end of a month.\u003c/p\u003e\n"],["\u003cp\u003eNASA promotes open sharing of this data for research, applications, and public use through platforms like Google Earth Engine.\u003c/p\u003e\n"]]],["The NASA/MERRA-2 dataset offers hourly, 2-dimensional meteorological diagnostics from 1980 to the present, with a roughly 3-week latency. It includes variables like air temperature, wind components, and pressure at various vertical levels. Data is time-stamped to the half-hour mark and provided by the NASA Global Modeling and Assimilation Office. Available data includes humidity, pressure, temperature, vapor, water, and wind data, at 69375 meters by 55000 meters pixel size.\n"],null,["Dataset Availability\n: 1980-01-01T00:00:00Z--2025-08-01T23:00:00Z\n\nDataset Provider\n:\n\n\n [NASA/MERRA](https://gmao.gsfc.nasa.gov/reanalysis/MERRA-2/)\n\nCadence\n: 1 Hour\n\nTags\n:\n [atmosphere](/earth-engine/datasets/tags/atmosphere) [climate](/earth-engine/datasets/tags/climate) [humidity](/earth-engine/datasets/tags/humidity) [merra](/earth-engine/datasets/tags/merra) [nasa](/earth-engine/datasets/tags/nasa) [pressure](/earth-engine/datasets/tags/pressure) [temperature](/earth-engine/datasets/tags/temperature) [vapor](/earth-engine/datasets/tags/vapor) [water](/earth-engine/datasets/tags/water) [water-vapor](/earth-engine/datasets/tags/water-vapor) [wind](/earth-engine/datasets/tags/wind) \n condensation \n omega \nslv \n\nDescription \nM2T1NXSLV (or tavg1_2d_slv_Nx) is an hourly time-averaged 2-dimensional data\ncollection in Modern-Era Retrospective analysis for Research and\nApplications version 2 (MERRA-2). This collection consists of meteorology\ndiagnostics at popularly used vertical levels, such as air temperature at\n2-meter (or at 10-meter, 850hPa, 500 hPa, 250hPa), wind components at\n50-meter (or at 2-meter, 10-meter, 850 hPa, 500hPa, 250 hPa), sea level\npressure, surface pressure, and total precipitable water vapor (or ice\nwater, liquid water). The data field is time-stamped with the central time\nof an hour starting from 00:30 UTC, e.g.: 00:30, 01:30, ... , 23:30 UTC.\n\nMERRA-2 is the latest version of global atmospheric reanalysis for\nthe satellite era produced by NASA Global Modeling and Assimilation\nOffice (GMAO) using the Goddard Earth Observing System Model (GEOS)\nversion 5.12.4. The dataset covers the period of 1980-present with the\nlatency of \\~3 weeks after the end of a month.\n\nBands\n\n\n**Pixel Size**\n\n69375 meters\n\n\n**Y Pixel Size**\n\n55000 meters\n\n**Bands**\n\n| Name | Units | Pixel Size | Description |\n|------------|---------------|------------|--------------------------------------------------------------------|\n| `CLDPRS` | Pa | meters | Cloud top pressure |\n| `CLDTMP` | K | meters | Cloud top temperature |\n| `DISPH` | m | meters | Zero plane displacement height |\n| `H1000` | m | meters | Height at 1000 mb |\n| `H250` | m | meters | Height at 250 hPa |\n| `H500` | m | meters | Height at 500 hPa |\n| `H850` | m | meters | Height at 850 hPa |\n| `OMEGA500` | Pa/s | meters | Omega at 500 hPa |\n| `PBLTOP` | Pa | meters | Pbltop pressure |\n| `PS` | Pa | meters | Surface pressure |\n| `Q250` | Mass fraction | meters | Specific humidity at 250 hPa |\n| `Q500` | Mass fraction | meters | Specific humidity at 500 hPa |\n| `Q850` | Mass fraction | meters | Specific humidity at 850 hPa |\n| `QV10M` | Mass fraction | meters | 10-meter specific humidity |\n| `QV2M` | Mass fraction | meters | 2-meter specific humidity |\n| `SLP` | Pa | meters | Sea level pressure |\n| `T10M` | K | meters | 10-meter air temperature |\n| `T250` | K | meters | Air temperature at 250 hPa |\n| `T2MDEW` | K | meters | Dew point temperature at 2 m |\n| `T2MWET` | K | meters | Wet bulb temperature at 2 m |\n| `T2M` | K | meters | 2-meter air temperature |\n| `T500` | K | meters | Air temperature at 500 hPa |\n| `T850` | K | meters | Air temperature at 850 hPa |\n| `TO3` | Dobson | meters | Total column ozone |\n| `TOX` | kg/m\\^2 | meters | Total column odd oxygen |\n| `TQI` | kg/m\\^2 | meters | Total precipitable ice water |\n| `TQL` | kg/m\\^2 | meters | Total precipitable liquid water |\n| `TQV` | kg/m\\^2 | meters | Total precipitable water vapor |\n| `TROPPB` | Pa | meters | Tropopause pressure (TROPP) based on blended estimate |\n| `TROPPT` | Pa | meters | Tropopause pressure based on thermal estimate |\n| `TROPPV` | Pa | meters | Tropopause pressure based on epv estimate |\n| `TROPQ` | Mass fraction | meters | Tropopause specific humidity using blended tropp (TROPPB) estimate |\n| `TROPT` | K | meters | Tropopause temperature using blended tropp estimate |\n| `TS` | K | meters | Surface skin temperature |\n| `U10M` | m/s | meters | 10-meter eastward wind |\n| `U250` | m/s | meters | Eastward wind at 250 hPa |\n| `U2M` | m/s | meters | 2-meter eastward wind |\n| `U500` | m/s | meters | Eastward wind at 500 hPa |\n| `U50M` | m/s | meters | Eastward wind at 50 meters |\n| `U850` | m/s | meters | Eastward wind at 850 hPa |\n| `V10M` | m/s | meters | 10-meter northward wind |\n| `V250` | m/s | meters | Northward wind at 250 hPa |\n| `V2M` | m/s | meters | 2-meter northward wind |\n| `V500` | m/s | meters | Northward wind at 500 hPa |\n| `V50M` | m/s | meters | Northward wind at 50 meters |\n| `V850` | m/s | meters | Northward wind at 850 hPa |\n| `ZLCL` | m | meters | Lifting condensation level |\n\nTerms of Use\n\n**Terms of Use**\n\nNASA promotes the full and open sharing of all data with research and\napplications communities, private industry, academia, and the general\npublic.\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('NASA/GSFC/MERRA/slv/2')\n .filter(ee.Filter.date('2022-02-01', '2022-02-02'));\nvar surface_pressure = dataset.select('PS');\nvar surface_pressure_vis = {\n min: 81100,\n max: 117000,\n palette: ['001137', '01abab', 'e7eb05', '620500']\n};\nMap.setCenter(-95.62, 39.91, 2);\nMap.addLayer(surface_pressure, surface_pressure_vis);\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/NASA/NASA_GSFC_MERRA_slv_2) \n[MERRA-2 M2T1NXSLV: Single-Level Diagnostics V5.12.4](/earth-engine/datasets/catalog/NASA_GSFC_MERRA_slv_2) \nM2T1NXSLV (or tavg1_2d_slv_Nx) is an hourly time-averaged 2-dimensional data collection in Modern-Era Retrospective analysis for Research and Applications version 2 (MERRA-2). This collection consists of meteorology diagnostics at popularly used vertical levels, such as air temperature at 2-meter (or at 10-meter, 850hPa, 500 hPa, 250hPa), wind components at 50-meter (or ... \nNASA/GSFC/MERRA/slv/2, atmosphere,climate,humidity,merra,nasa,pressure,temperature,vapor,water,water-vapor,wind \n1980-01-01T00:00:00Z/2025-08-01T23:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://gmao.gsfc.nasa.gov/reanalysis/MERRA-2/)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/NASA_GSFC_MERRA_slv_2)"]]
