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Humidity Data Access and Tools

NASA’s humidity data range from hourly primary forcing data to modeled data based on measurements from high-altitude aircraft. Our datasets and tools help users find and integrate the data they need to see how humidity influences weather, ecosystems, and how we live our lives.

Humidity Datasets

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Dataset Version Platform Instrument Temporal Extent Spatial Extent Spatial Resolution Data Format
TOVS LMD MONTHLY GRIDS from NOAA-10 V01 (TOVSBMNG) at GES DISC 01 NOAA-10 HIRS/2, MSU, TOVS 1986-12-31 to 1991-09-01

N: 90 S: -90 E: 180 W: -180

TOVS LMD MONTHLY GRIDS from NOAA-12 V01 (TOVSBMND) at GES DISC 01 NOAA-12 HIRS/2, MSU, TOVS 1991-06-30 to 1995-07-01

N: 90 S: -90 E: 180 W: -180

TRACE-A Balloonsondes and Ozonesondes Data 1 RADIOSONDES OZONESONDES 1990-03-13 to 1992-10-26

N: -4.27 S: -25.9 E: 28.2 W: -56

GTE
TRACE-A In Situ DC-8 Meteorology and Navigation Data 1 NASA DC-8 DADS 1992-08-19 to 1992-10-28

N: 43.575 S: -43.575 E: 39.562 W: -125.845

GTE
TRACE-A Merge Data 1 Data Analysis 1990-03-13 to 1992-11-02

N: 43.575 S: -59.98 E: 58.68 W: -180

GTE
TRACE-P Balloonsondes and Ozonesondes Data 1 BALLOONS OZONESONDES 1999-01-07 to 2001-12-29

N: 43.05 S: 19.43 E: 141.33 W: -155.04

GTE
TRACE-P In Situ DC-8 Meteorology and Navigation Data 1 NASA DC-8 DLH 2001-02-15 to 2001-04-11

N: 45.54 S: 13.56 E: 180 W: -180

GTE
TRACE-P In Situ P-3B Meteorology and Navigation Data 1 P-3B TAMMS 2001-02-10 to 2002-03-01

N: 40.95 S: 6.89 E: 180 W: -180

GTE
TROPESS Chemical Reanalysis Specific Humidity 6-Hourly 3-dimensional Product V1 (TRPSCRQ6H3D) at GES DISC 1 REANALYSIS MODELS NOT APPLICABLE 2005-01-01 to 2021-12-31

N: 90 S: -90 E: 180 W: -180

1.125 Decimal Degrees x 1.125 Decimal Degrees
TROPESS Chemical Reanalysis Specific Humidity Monthly 3-dimensional Product V1 (TRPSCRQM3D) at GES DISC 1 REANALYSIS MODELS NOT APPLICABLE 2005-01-01 to 2021-12-31

N: 90 S: -90 E: 180 W: -180

1.125 Decimal Degrees x 1.125 Decimal Degrees
TROPESS Chemical Reanalysis Surface Specific Humidity 2-Hourly 2-dimensional Product V1 (TRPSCRQ2H2D) at GES DISC 1 REANALYSIS MODELS NOT APPLICABLE 2005-01-01 to 2021-12-31

N: 90 S: -90 E: 180 W: -180

1.125 Decimal Degrees x 1.125 Decimal Degrees
Tropospheric Aerosol Radiative Forcing Observational eXperiment (TARFOX) - meteorological data from Wallops ground station 1 GROUND STATIONS RADIOSONDES 1996-07-10 to 1996-07-30

N: 37.86 S: 37.84 E: -75.47 W: -75.49

ASCII
UAlbany Soundings IMPACTS 1 BALLOONS SOUNDERS 2023-01-05 to 2023-03-01

N: 43.621 S: 42.549 E: -72.286 W: -73.851

ASCII
UARS Correlative NMC Daily Gridded Stratospheric Assimilated Data V001 (UARZCNMC) at GES DISC 001 GDAS NOT APPLICABLE 1991-09-12 to 2001-09-30

N: 90 S: -90 E: 180 W: -180

UARS Microwave Limb Sounder (MLS) Level 3AT V005 (UARML3AT) at GES DISC 005 UARS MLS 1991-09-18 to 1999-07-28

N: 80 S: -80 E: 180 W: -180

VEMAP 1: U.S. Climate, 1961-1990 1 NOT APPLICABLE NOT APPLICABLE 1961-01-01 to 1990-12-31

N: 49 S: 25 E: -67 W: -124.5

multiple
VEMAP 1: U.S. Climate Change Scenarios Based on Models with Increased CO2 1 NOT APPLICABLE NOT APPLICABLE 1961-01-01 to 1990-12-31

N: 49 S: 25 E: -67 W: -124.5

multiple
VEMAP 1: U.S. Site Files 1 NOT APPLICABLE NOT APPLICABLE 1961-01-01 to 1990-12-31

N: 49 S: 25 E: -67 W: -124.5

Text File
VEMAP 2: Monthly Historical and Future Climate Data, Alaska, USA 1 COMPUTERS Computer 1922-01-01 to 2100-12-31

N: 71.5 S: 53.5 E: -128.5 W: -170.5

netCDF-4
VEMAP 2: U.S. Annual Climate, 1895-1993 1 NOT APPLICABLE NOT APPLICABLE 1895-01-01 to 1993-12-31

N: 49 S: 25 E: -67 W: -124.5

netCDF-3
VEMAP 2: U.S. Annual Climate Change Scenarios 1 NOT APPLICABLE NOT APPLICABLE 1994-01-01 to 2100-12-31

N: 49 S: 25 E: -67 W: -124.5

netCDF-3
VEMAP 2: U.S. Daily Climate, 1895-1993 1 NOT APPLICABLE NOT APPLICABLE 1895-01-01 to 1993-12-31

N: 49 S: 25 E: -67 W: -124.5

netCDF-3
VEMAP 2: U.S. Daily Climate Change Scenarios 1 NOT APPLICABLE NOT APPLICABLE 1994-01-01 to 2100-12-31

N: 49 S: 25 E: -67 W: -124.5

netCDF-3
VEMAP 2: U.S. Monthly Climate, 1895-1993, Version 2 1 NOT APPLICABLE NOT APPLICABLE 1895-01-01 to 1993-12-31

N: 49 S: 25 E: -67 W: -124.5

netCDF-3
VEMAP 2: U.S. Monthly Climate Change Scenarios, Version 2 1 NOT APPLICABLE NOT APPLICABLE 1994-01-01 to 2100-12-31

N: 49 S: 25 E: -67 W: -124.5

netCDF-3
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Featured Humidity Observation Method: MLS

The Microwave Limb Sounder (MLS) instrument is carried aboard the Aqua satellite and acquires measurements globally day and night. The MLS makes measurements of atmospheric composition, temperature, humidity and cloud ice that are needed to learn more about weather, climate, and air quality.

Learn More About MLS
image collage of satellite data images of Earth

MLS Near Real-Time Data

Near real-time atmosphere, temperature, humidity, and cloud ice data from the Microwave Limb Sounder (MLS) are available through NASA's Land, Atmosphere Near real-time Capability for Earth observation (LANCE).
image of MLS SIPS data over Antarctica

MLS Products Available in GIBS

In coordination with the Microwave Limb Sounder (MLS) team, we now have several MLS products available through the GIBS image access APIs.

Humidity Data Tools

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