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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
NCSU Soundings IMPACTS 1 GROUND STATIONS RAWINSONDES 2020-02-20 to 2023-02-12

N: 35.777 S: 35.757 E: -78.623 W: -78.643

netCDF-4
New York State Mesonet IMPACTS 1 GROUND STATIONS BAROMETERS, DISDROMETERS, LIDAR, RADIOMETERS, THERMOMETERS, WIND PROFILERS 2020-01-03 to 2023-03-02

N: 44.9057 S: 40.594 E: -72.1909 W: -79.6375

PNG
NLDAS Primary Forcing Data L4 Hourly 0.125 x 0.125 degree V2.0 (NLDAS_FORA0125_H) 2.0 Forcing-LSM NOT APPLICABLE 1979-01-01 to Present

N: 53 S: 25 E: -67 W: -125

0.125 Decimal Degrees x 0.125 Decimal Degrees
NLDAS Primary Forcing Data L4 Monthly 0.125 x 0.125 degree V2.0 (NLDAS_FORA0125_M) 2.0 Forcing-LSM NOT APPLICABLE 1979-01-01 to Present

N: 53 S: 25 E: -67 W: -125

0.125 Decimal Degrees x 0.125 Decimal Degrees
NLDAS Primary Forcing Data L4 Monthly Climatology 0.125 x 0.125 degree V2.0 (NLDAS_FORA0125_MC) 2.0 Forcing-LSM NOT APPLICABLE 1981-01-01 to 2020-12-31

N: 53 S: 25 E: -67 W: -125

0.125 Decimal Degrees x 0.125 Decimal Degrees
NLDAS Secondary Forcing Data L4 Hourly 0.125 x 0.125 degree V2.0 (NLDAS_FORB0125_H) 2.0 Forcing-LSM NOT APPLICABLE 1979-01-01 to Present

N: 53 S: 25 E: -67 W: -125

0.125 Decimal Degrees x 0.125 Decimal Degrees
NLDAS Secondary Forcing Data L4 Monthly 0.125 x 0.125 degree V2.0 (NLDAS_FORB0125_M) 2.0 Forcing-LSM NOT APPLICABLE 1979-01-01 to Present

N: 53 S: 25 E: -67 W: -125

0.125 Decimal Degrees x 0.125 Decimal Degrees
NLDAS Secondary Forcing Data L4 Monthly Climatology 0.125 x 0.125 degree V2.0 (NLDAS_FORB0125_MC) 2.0 Forcing-LSM NOT APPLICABLE 1981-01-01 to 2020-12-31

N: 53 S: 25 E: -67 W: -125

0.125 Decimal Degrees x 0.125 Decimal Degrees
NOAA Soundings IMPACTS 1 GROUND STATIONS RAWINSONDES 2020-01-01 to 2023-03-01

N: 48.5747 S: 27.6953 E: -68.0036 W: -98.4233

netCDF-4
ORACLES Navigational and Meteorological Data 1 NASA P-3, NASA ER-2 4STAR, LGR, WVISO, GPS, HYGROMETERS, PRESSURE TRANSDUCERS, PITOT-STATIC SYSTEM, TEMPERATURE SENSORS 2016-08-02 to 2018-10-27

N: 40.69 S: -23.11 E: 14.94 W: -76.44

ICARTT
OWLETS-1 Ozonesonde Data 1 GROUND STATIONS OZONESONDES 2017-07-06 to 2017-09-13

N: 37.54 S: 36.61 E: -75.05 W: -76.92

ICARTT
OWLETS-2 Ozonesonde Data 1 GROUND STATIONS OZONESONDES 2018-06-07 to 2018-07-11

N: 39.57 S: 38.54 E: -75.66 W: -77.34

ICARTT
OWLETS-2 Surface (Ground) Data 1 GROUND STATIONS, Vaisala HydroMet AWS GAS SENSORS, LGR CRDS, Picarro G2401, TEMPERATURE SENSORS, PRESSURE SENSORS, HUMIDITY SENSORS 2018-05-23 to 2018-08-02

N: 39.26 S: 39.24 E: -76.36 W: -76.72

ICARTT
OWLETS-2 University of Maryland Cessna Aircraft Data 1 UMD Cessna, HU-25A GPS, GAS SENSORS, TSI-3563 Neph, AETHALOMETER, PSAP, Picarro G2401, LGR CRDS, GeoTASO 2017-07-07 to 2018-07-20

N: 42.14 S: 37.23 E: -71.94 W: -77.48

ICARTT, HDF5
P-3 Meteorological and Navigation Data IMPACTS 1 NASA P-3 GPS, HYGROMETERS, KT19 Pyrometer, RADAR ALTIMETERS, TEMPERATURE PROBES, TEMPERATURE SENSORS 2020-01-12 to 2023-02-28

N: 48.237 S: 33.261 E: -64.987 W: -95.243

ASCII
PACE-PAX CIRPAS Twin Otter Facility Instrument Data 1 TWIN OTTER CIRPAS NPS CAS, CIP, PCASP 2024-08-29 to 2024-09-28

N: 38.11 S: 33.49 E: -116.98 W: -125.33

ICARTT
PACE-PAX CIRPAS Twin Otter In-Situ Aerosol Data 1 TWIN OTTER CIRPAS NPS APS, UHSAS, TSI-3563 Neph, POPS 2024-08-29 to 2024-09-28

N: 38.11 S: 33.49 E: -116.98 W: -125.33

ICARTT
PACE-PAX CIRPAS Twin Otter In-Situ Aerosol Retrieval Algorithm (ISARA) Analysis Data 1 TWIN OTTER CIRPAS NPS Computer 2024-09-03 to 2024-09-29

N: 38.1 S: 33.62 E: -116.98 W: -124.24

NetCDF-4
PACE-PAX ER-2 High Spectral Resolution Lidar-2 Data 1 NASA ER-2 HSRL-2 2024-09-06 to 2024-10-01

N: 40.77 S: 32.56 E: -113.22 W: -127.56

HDF5, PDF
PACE-PAX ER-2 Research Scanning Polarimeter (RSP) Data 1 NASA ER-2 RSP-2 2024-08-29 to 2024-10-02

N: 42.42 S: 31.58 E: -112.42 W: -128.52

NetCDF-4
PACE-PAX Marina Tower In-Situ Aerosol Data 1 GROUND-BASED OBSERVATIONS APS, UHSAS, TSI-3563 Neph 2024-09-01 to 2024-09-29

N: 36.68 S: 36.67 E: -121.75 W: -121.77

ICARTT
PEM Tropics A Sondes Data 1 RADIOSONDES RADIOSONDES, OZONESONDES 1995-01-05 to 1997-12-31

N: -14.23 S: -45.045 E: 180 W: -180

GTE
PEM Tropics B In-Situ DC-8 Meteorology and Navigation Data 1 NASA DC-8 DADS, MTP, DLH 1999-02-20 to 1999-04-19

N: 35.8 S: -36.4 E: 180 W: -180

GTE
PEM Tropics B In-Situ P-3B Meteorology and Navigation Data 1 P-3B TAMMS 1999-03-05 to 1999-04-12

N: 40 S: -21 E: -72 W: -166

GTE
PEM West A In-Situ DC-8 Meteorology and Navigation Data 1 NASA DC-8 DADS, GRAB SAMPLERS 1991-09-08 to 1991-10-23

N: 61.338 S: -62 E: 180 W: -180

GTE
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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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