M2T1NXSLV (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 at 2-meter, 10-meter, 850 hPa, 500hPa, 250 hPa), sea level
pressure, surface pressure, and total precipitable water vapor (or ice
water, liquid water). The data field is time-stamped with the central time
of an hour starting from 00:30 UTC, e.g.: 00:30, 01:30, ... , 23:30 UTC.
MERRA-2 is the latest version of global atmospheric reanalysis for
the satellite era produced by NASA Global Modeling and Assimilation
Office (GMAO) using the Goddard Earth Observing System Model (GEOS)
version 5.12.4. The dataset covers the period of 1980-present with the
latency of ~3 weeks after the end of a month.
Bands
Pixel Size 69375 meters
Y Pixel Size 55000 meters
Bands
Name
Units
Pixel Size
Description
CLDPRS
Pa
meters
Cloud top pressure
CLDTMP
K
meters
Cloud top temperature
DISPH
m
meters
Zero plane displacement height
H1000
m
meters
Height at 1000 mb
H250
m
meters
Height at 250 hPa
H500
m
meters
Height at 500 hPa
H850
m
meters
Height at 850 hPa
OMEGA500
Pa/s
meters
Omega at 500 hPa
PBLTOP
Pa
meters
Pbltop pressure
PS
Pa
meters
Surface pressure
Q250
Mass fraction
meters
Specific humidity at 250 hPa
Q500
Mass fraction
meters
Specific humidity at 500 hPa
Q850
Mass fraction
meters
Specific humidity at 850 hPa
QV10M
Mass fraction
meters
10-meter specific humidity
QV2M
Mass fraction
meters
2-meter specific humidity
SLP
Pa
meters
Sea level pressure
T10M
K
meters
10-meter air temperature
T250
K
meters
Air temperature at 250 hPa
T2MDEW
K
meters
Dew point temperature at 2 m
T2MWET
K
meters
Wet bulb temperature at 2 m
T2M
K
meters
2-meter air temperature
T500
K
meters
Air temperature at 500 hPa
T850
K
meters
Air temperature at 850 hPa
TO3
Dobson
meters
Total column ozone
TOX
kg/m^2
meters
Total column odd oxygen
TQI
kg/m^2
meters
Total precipitable ice water
TQL
kg/m^2
meters
Total precipitable liquid water
TQV
kg/m^2
meters
Total precipitable water vapor
TROPPB
Pa
meters
Tropopause pressure (TROPP) based on blended estimate
TROPPT
Pa
meters
Tropopause pressure based on thermal estimate
TROPPV
Pa
meters
Tropopause pressure based on epv estimate
TROPQ
Mass fraction
meters
Tropopause specific humidity using blended tropp (TROPPB) estimate
TROPT
K
meters
Tropopause temperature using blended tropp estimate
TS
K
meters
Surface skin temperature
U10M
m/s
meters
10-meter eastward wind
U250
m/s
meters
Eastward wind at 250 hPa
U2M
m/s
meters
2-meter eastward wind
U500
m/s
meters
Eastward wind at 500 hPa
U50M
m/s
meters
Eastward wind at 50 meters
U850
m/s
meters
Eastward wind at 850 hPa
V10M
m/s
meters
10-meter northward wind
V250
m/s
meters
Northward wind at 250 hPa
V2M
m/s
meters
2-meter northward wind
V500
m/s
meters
Northward wind at 500 hPa
V50M
m/s
meters
Northward wind at 50 meters
V850
m/s
meters
Northward wind at 850 hPa
ZLCL
m
meters
Lifting condensation level
Terms of Use
Terms of Use
NASA promotes the full and open sharing of all data with research and
applications communities, private industry, academia, and the general
public.
M2T1NXSLV (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 …
[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)"]]
