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MERRA-2 tavgM_2d_slv_Nx: 2d,Monthly mean,Time-Averaged,Single-Level,Assimilation,Single-Level Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TMNXSLV) at GES DISC

Published by NASA/GSFC/SED/ESD/TISL/GESDISC | National Aeronautics and Space Administration | Catalog Last Checked: May 18, 2026 at 03:23 PM | Dataset Last Updated: May 11, 2026
M2TMNXSLV (or tavgM_2d_slv_Nx) is a time-averaged 2-dimensional monthly mean 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, 850hPa, 500hPa, 250 hPa), sea level pressure, surface pressure, and total precipitable water vapor (or ice water, liquid water). The collection also includes variance of certain parameters. 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. Data Reprocessing: Please check “Records of MERRA-2 Data Reprocessing and Service Changes” linked from the “Documentation” tab on this page. Note that a reprocessed data filename is different from the original file. MERRA-2 Mailing List: Sign up to receive information on reprocessing of data, changing of tools and services, as well as data announcements from GMAO. Contact the GES DISC Help Desk (gsfc-dl-help-disc@mail.nasa.gov) to be added to the list. Questions: If you have a question, please read "MERRA-2 File Specification Document", “MERRA-2 Data Access – Quick Start Guide”, and FAQs linked from the ”Documentation” tab on this page. If that does not answer your question, you may post your question to the NASA Earthdata Forum (forum.earthdata.nasa.gov) or email the GES DISC Help Desk (gsfc-dl-help-disc@mail.nasa.gov).

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Complete Metadata
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description M2TMNXSLV (or tavgM_2d_slv_Nx) is a time-averaged 2-dimensional monthly mean 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, 850hPa, 500hPa, 250 hPa), sea level pressure, surface pressure, and total precipitable water vapor (or ice water, liquid water). The collection also includes variance of certain parameters. 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. Data Reprocessing: Please check “Records of MERRA-2 Data Reprocessing and Service Changes” linked from the “Documentation” tab on this page. Note that a reprocessed data filename is different from the original file. MERRA-2 Mailing List: Sign up to receive information on reprocessing of data, changing of tools and services, as well as data announcements from GMAO. Contact the GES DISC Help Desk (gsfc-dl-help-disc@mail.nasa.gov) to be added to the list. Questions: If you have a question, please read "MERRA-2 File Specification Document", “MERRA-2 Data Access – Quick Start Guide”, and FAQs linked from the ”Documentation” tab on this page. If that does not answer your question, you may post your question to the NASA Earthdata Forum (forum.earthdata.nasa.gov) or email the GES DISC Help Desk (gsfc-dl-help-disc@mail.nasa.gov).
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identifier 10.5067/AP1B0BA5PD2K
keyword 
                                            [
  "earth-science-altitude-atmosphere",
  "earth-science-altitude-atmosphere-geopotential-height",
  "earth-science-atmospheric-chemistry-atmosphere-oxygen-compounds",
  "earth-science-atmospheric-chemistry-atmosphere-oxygen-compounds-atmospheric-ozone",
  "earth-science-atmospheric-pressure-atmosphere",
  "earth-science-atmospheric-pressure-atmosphere-sea-level-pressure",
  "earth-science-atmospheric-pressure-atmosphere-surface-pressure",
  "earth-science-atmospheric-temperature-atmosphere-surface-temperature",
  "earth-science-atmospheric-temperature-atmosphere-surface-temperature-air-temperature",
  "earth-science-atmospheric-temperature-atmosphere-surface-temperature-dew-point-temperature",
  "earth-science-atmospheric-temperature-atmosphere-surface-temperature-skin-temperature",
  "earth-science-atmospheric-temperature-atmosphere-upper-air-temperature",
  "earth-science-atmospheric-water-vapor-atmosphere",
  "earth-science-atmospheric-water-vapor-atmosphere-water-vapor-indicators-humidity-specific-humid",
  "earth-science-atmospheric-water-vapor-atmosphere-water-vapor-indicators-total-precipitable-wate",
  "earth-science-atmospheric-winds-atmosphere",
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  "earth-science-atmospheric-winds-atmosphere-upper-level-winds-u-v-wind-components",
  "earth-science-atmospheric-winds-atmosphere-wind-dynamics-vertical-wind-velocity-speed",
  "earth-science-clouds-atmosphere-cloud-microphysics-cloud-liquid-water-ice",
  "earth-science-clouds-atmosphere-cloud-properties-cloud-top-pressure",
  "earth-science-clouds-atmosphere-cloud-properties-cloud-top-temperature",
  "earth-science-ocean-pressure-oceans-sea-level-pressure"
]
license https://www.usa.gov/government-works
modified 2026-05-11
programCode 
                                            [
  "026:000"
]
publisher 
                                            {
  "name": "NASA/GSFC/SED/ESD/TISL/GESDISC",
  "@type": "org:Organization"
}
spatial 
                                            "["CARTESIAN",[{"WestBoundingCoordinate":-180,"NorthBoundingCoordinate":90,"EastBoundingCoordinate":180,"SouthBoundingCoordinate":-90}]]"
temporal 1980-01-01/2026-05-04
theme 
                                            [
  "Earth Science"
]
title MERRA-2 tavgM_2d_slv_Nx: 2d,Monthly mean,Time-Averaged,Single-Level,Assimilation,Single-Level Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TMNXSLV) at GES DISC

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