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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
QuikSCAT ESDR Level 2 Ancillary Ocean Surface Fields Version 1.1 1.1 MODELS, QUIKSCAT Computer, SEAWINDS 2000-06-01 to 2009-11-22

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

12.5 Kilometers x 12.5 Kilometers netCDF-4
Radiosondes CPEX-CV 1 GROUND STATIONS RADIOSONDES 2022-09-01 to 2022-09-29

N: 16.789384 S: 0.053658 E: -0.073876 W: -23.400798

netCDF-4
RI CPEX 1 GCOM-W1, GPM, DMSP 5D-3/F16, DMSP 5D-3/F18 AMSR2, GMI, SSMIS 2017-05-24 to 2017-07-16

N: 47.73 S: -2.1 E: -25.2 W: -120.17

RM-OBS/PU Potential Evapotranspiration and Supporting Forcing L4 3-hourly 0.25x0.25 degree V001 (PET_PU_3H025) at GES DISC 001 RM-OBS/PU NOT APPLICABLE 1984-01-01 to 2006-12-31

N: 90 S: -60 E: 180 W: -180

0.25 Decimal Degrees x 0.25 Decimal Degrees
RM-OBS/PU Potential Evapotranspiration and Supporting Forcing L4 3-hourly 0.25x0.25 degree V002 (PET_PU_3H025) at GES DISC 002 RM-OBS/PU NOT APPLICABLE 1984-01-01 to 2016-12-31

N: 90 S: -60 E: 180 W: -180

0.25 Decimal Degrees x 0.25 Decimal Degrees
SAFARI 2000 ETA Atmospheric Model Data, Wet and Dry Seasons 2000 1 NOT APPLICABLE NOT APPLICABLE 2000-02-01 to 2000-09-30

N: -9 S: -53 E: 53 W: -13

Shapefile
SAFARI 2000 JRA Aerocommander Trace Gas, Aerosol, and CCN Data, Dry Season 2000 1 AC-680E IR CO2 ANALYZER, HUMIDITY SENSORS, THERMOCOUPLES, PRESSURE SENSORS, CNC, UV OZONE DETECTORS, CHEMILUMINESCENCE, FLUORESCENCE SPECTROSCOPY 2000-08-15 to 2000-09-07

N: -17.8293 S: -30.1916 E: 33.1635 W: 22.156

ASCII
SAFARI 2000 JRB Aerocommander Trace Gas and Aerosol Data, Dry Season 2000 1 AC-680E IR CO2 ANALYZER, HUMIDITY SENSORS, THERMOCOUPLES, PRESSURE SENSORS, CNC, UV OZONE DETECTORS, CHEMILUMINESCENCE, FLUORESCENCE SPECTROSCOPY 2000-08-15 to 2000-09-07

N: -17.8293 S: -30.1916 E: 33.1635 W: 22.156

ASCII
SAFARI 2000 Kalahari Transect CO2, Water Vapor, and Heat Flux, Wet Season 2000 1 FIELD INVESTIGATION, FIXED OBSERVATION STATIONS TDR, THERMOCOUPLES, SOIL HEAT FLUX TRANSDUCER, INFRARED THERMOMETERS, TEMPERATURE SENSORS, SONIC ANEMOMETER, IR CO2 ANALYZER, NET RADIOMETERS, HUMIDITY SENSORS 2000-03-01 to 2000-03-19

N: -15.438 S: -24.164 E: 23.594 W: 21.713

Shapefile
SAFARI 2000 Meteorological and Flux Tower Measurements in Maun, Botswana, 2000 1 FIXED OBSERVATION STATIONS, FIELD INVESTIGATION PYRANOMETERS, IRGA, PRESSURE TRANSDUCERS, TEMPERATURE PROBES, RTD, ANEMOMETERS, LICOR QUANTUM SENSOR, RAIN GAUGES, HUMIDITY SENSORS, SOIL MOISTURE PROBE, THERMOMETERS 2000-02-01 to 2000-09-30

N: -19.9 S: -19.9 E: 23.55 W: 23.55

Shapefile
SAFARI 2000 Meteorological Tower Measurements, Kruger National Park, 2000-2002 1 FIXED OBSERVATION STATIONS PYRANOMETERS, HUMIDITY SENSORS, RAIN GAUGES, WIND VANES, ANEMOMETERS, LICOR GAS EXCHANGE SYSTEM, TEMPERATURE PROBES 2000-02-15 to 2002-12-31

N: -25.0197 S: -25.0197 E: 31.4969 W: 31.4969

Shapefile
SAFARI 2000 MODIS Water and Heat Fluxes, Maun, Botswana, Dry Season 2001 1 FIXED OBSERVATION STATIONS, FIELD INVESTIGATION, Terra, MODELS PRESSURE SENSORS, WIND MONITOR, HUMIDITY SENSORS, NET RADIOMETERS, EDDY CORRELATION DEVICES, SOIL HEAT FLUX TRANSDUCER, MODIS, Computer 2001-09-02 to 2001-09-29

N: -17.9946 S: -21.0004 E: 24.5004 W: 21.4946

Shapefile
SAFARI 2000 SHADOZ Ozonesonde Data, Zambia and Regional Sites, Dry Season 2000 1 BALLOONS OZONESONDES, HUMIDITY SENSORS, RADIOSONDES 2000-08-01 to 2000-11-30

N: -7.98 S: -7.98 E: 55.48 W: 55.48

Shapefile
SAFARI 2000 Surface Atmospheric Radiative Transfer (SMART), Dry Season 2000 1 GROUND STATIONS TEMPERATURE SENSORS, BAROMETERS, Pyrgeometer, PYRHELIOMETERS, PYRANOMETERS, HUMIDITY SENSORS 2000-08-15 to 2000-09-17

N: -24.969 S: -24.969 E: 31.593 W: 31.593

Shapefile
SAFARI 2000 Upper Air Meteorological Profiles, Skukuza, Dry Seasons 1999-2000 1 BALLOONS RADIOSONDES 1999-08-14 to 2000-09-23

N: -24.969 S: -24.969 E: 31.593 W: 31.593

Shapefile
SAFARI 2000 Upper Air Meteorological Profiles, South Africa, Dry Season 2000 1 BALLOONS RADIOSONDES 2000-08-01 to 2000-09-30

N: -24 S: -41 E: 31 W: -10

Shapefile
Saildrone 2021 Arctic field campaign for the Multi-Sensor Improved SST (MISST) project 1 Saildrone CTD, ADCP, ANEMOMETERS, FLUOROMETERS, TEMPERATURE SENSORS, HUMIDITY SENSORS, PYROMETERS, PAR SENSORS, BAROMETERS 2021-07-06 to 2021-10-21

N: 71 S: 65 E: -164.5 W: -168

netCDF-4
Saildrone 2022 Arctic field campaign for the Multi-Sensor Improved SST (MISST) project 1 Saildrone CTD, ADCP, ANEMOMETERS, FLUOROMETERS, TEMPERATURE SENSORS, HUMIDITY SENSORS, PYROMETERS, PAR SENSORS, BAROMETERS 2022-06-18 to 2022-08-17

N: 71.6 S: 65.2 E: -157.2 W: -168.5

netCDF-4
SARP 2018 Data 1 NASA DC-8 WAS, MMS, Picarro G2401, DLH, LGR, CAFE, CANOE, DADS 2018-06-25 to 2018-06-28

N: 37.63 S: 32.72 E: -114.9 W: -120.32

ICARTT
SARP 2019 Data 1 NASA DC-8 LI Neph, WAS, MMS, SAGA, NDIR GAS ANALYZER, DACOM, DLH, CAMS, DIAL, CAFS, ISAF, AMS, TSI LAS-3340, CCN, Vaisala HUMICAP HMP155, SMPS, NO/NOy, CIT-ToF-CIMS, DADS 2019-07-16 to 2019-07-18

N: 38.25 S: 30.74 E: -115.41 W: -121.88

ICARTT, HDF5
SARP 2024 Data 1 P-3B, B-200 POPS, UHSAS, DLH, Picarro G2401, Applanix, ToF-AMS, APS, CNC, TSI-3563 Neph, DMT SP2, WAS, ROZE, CAFE, CANOE, AIMMS 2024-06-15 to 2024-07-23

N: 40.2 S: 25.07 E: -74.71 W: -121.59

ICARTT, KML
SARP 2025 Data 1 P-3B, B-200, GROUND-BASED OBSERVATIONS Picarro G2401, DLH, UHSAS, CNC, ToF-AMS, ROZE, CAFE, CANOE, AIMMS, TAMMS, Pandora 2025-06-20 to 2025-07-19

N: 42.08 S: 26.57 E: -71.69 W: -120.41

ICARTT
SARP-East 2023 Data 1 B-200, GROUND STATIONS Picarro G2401, Thermo Scientific SO2 43i Analyzer, CAFE, TSI LAS-3340, CNC, NDIR GAS ANALYZER, TAP, CEILOMETERS, LI-850, OZONESONDES 2023-06-01 to 2023-06-29

N: 45 S: 30 E: -70 W: -85

ICARTT, netCDF-4
SASSIE ECCO Atmosphere Surface Temperature, Humidity, and Wind - Daily Mean llc1080 Grid (Version 1 Release 1) V1R1 MITgcm 2014-01-15 to 2021-02-08 NETCDF4
SBU Meteorological Station IMPACTS V1 1 GROUND STATIONS ANEMOMETERS, BAROMETERS, GPS, HUMIDITY SENSORS, THERMOMETERS 2020-01-01 to 2023-01-25

N: 43.256 S: 40.718 E: -73.02 W: -76.882

netCDF-4, ASCII
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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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