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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
NAMMA DC-8 DROPSONDE V1 1 NASA DC-8 DROPSONDES 2006-08-07 to 2006-09-12

N: 47.4533 S: 7.31667 E: -12.7411 W: -90.0467

ASCII
NAMMA DIODE LASER HYGROMETER (DLH) V1 1 NASA DC-8 DLH 2006-08-19 to 2006-09-12

N: 21.9783 S: 7.03833 E: -10.5583 W: -34.1533

ASCII
NAMMA LIDAR ATMOSPHERIC SENSING EXPERIMENT (LASE) V1 1 NASA DC-8 DIAL, LASE 2006-08-15 to 2006-09-12

N: 47.8839 S: 7.0367 E: -10.5579 W: -96.5259

ASCII
NAMMA PRAIA CAPE VERDE RADIOSONDE V1 1 RADIOSONDES GPS, HUMIDITY SENSORS, TELEMETER, THERMISTORS 2006-08-18 to 2006-09-14

N: 15.2707 S: 14.6689 E: -23.4742 W: -24.5327

ASCII
NAMMA Raw DC-8 Dropsonde V1 1 NASA DC-8 DROPSONDES 2006-08-07 to 2006-09-12

N: 47.453 S: 7.485 E: -12.741 W: -93.799

ASCII
NAMMA SENEGAL RADIOSONDE AND TOWER FLUX DATA V1 1 GROUND STATIONS, RADIOSONDES NET RADIOMETERS, GPS, HUMIDITY SENSORS, PRESSURE SENSORS, TELEMETER, TEMPERATURE SENSORS 2006-08-19 to 2006-09-17

N: 15.5 S: 13.91 E: 17.09 W: -17.97

ASCII
NAMMA SMART-COMMIT MOBILE LABORATORIES V1 1 GROUND STATIONS GAS SENSORS, TSI, PHOTOMETERS, RADIOSONDES, AERI, AETHALOMETER, MPL, PYRHELIOMETERS, TSI-3562 Nephelometer, APS, PYRANOMETERS, CG4, RADIOMETERS 2006-08-25 to 2006-09-26

N: 16.734 S: 16.731 E: -22.934 W: -22.937

ASCII, netCDF-3, TIFF
NARSTO EPA Supersite (SS) Atlanta 1999 Air Chemistry, Particulate Matter (PM), and Meteorological Data 1 LABORATORY, GROUND STATIONS, METEOROLOGICAL STATIONS BAROMETERS, NDIR GAS ANALYZER, UV OZONE DETECTORS, TEOM, PYRANOMETERS, HYGROMETERS, CHEMILUMINESCENCE, ION CHROMATOGRAPHS, ANEMOMETERS 1999-07-30 to 1999-09-03

N: 33.79 S: 33.77 E: -84.4 W: -84.42

ASCII
NARSTO EPA Supersite (SS) Baltimore, Johns Hopkins University Meteorolgical Data 1 METEOROLOGICAL STATIONS BAROMETERS, TEMPERATURE PROBES, SONIC ANEMOMETER, RAIN GAUGES, PYRANOMETERS 2002-02-13 to 2003-03-15

N: 39.3 S: 39.28 E: -76.54 W: -76.56

ASCII
NARSTO EPA Supersite (SS) Fresno, Beta Attenuation Monitors (BAM) Meteorological Data 1 FIXED OBSERVATION STATIONS BAROMETERS, PYRANOMETERS, THERMISTORS 2000-05-24 to 2007-01-01

N: 36.8 S: 36.78 E: -119.77 W: -119.79

ASCII
NARSTO EPA Supersite (SS) Houston, Texas Air Quality Study 2000 (TexAQS2000) Texas Natural Resource Conservation Commission (TNRCC) continuous ambient monitoring stations (CAMS) Air Quality Data 1 GROUND STATIONS, METEOROLOGICAL STATIONS NDIR GAS ANALYZER, UV OZONE DETECTORS, TEOM, PYRANOMETERS, CHEMILUMINESCENCE, FLUORESCENCE SPECTROSCOPY, ANEMOMETERS, THERMISTORS 2000-08-02 to 2000-09-30

N: 33.36 S: 27.76 E: -93.76 W: -98.62

ASCII
NARSTO EPA Supersite (SS) New York Air Chemistry, Particulate Matter, and Meteorological Data 1 GROUND STATIONS BAROMETERS, UV OZONE DETECTORS, PYRANOMETERS, HYGROMETERS, CHEMILUMINESCENCE, ION CHROMATOGRAPHS, ANEMOMETERS, THERMISTORS 2000-01-01 to 2006-01-01

N: 44.39 S: 40.7 E: -73.7 W: -77.21

ASCII
NARSTO EPA Supersite (SS) Pittsburgh Meteorological Data 1 METEOROLOGICAL STATIONS RAIN GAUGES, PYRANOMETERS, ANEMOMETERS, SPECTRORADIOMETERS, THERMISTORS 2001-07-01 to 2002-11-01

N: 40.45 S: 40.43 E: -79.93 W: -79.95

ASCII
NARSTO PAC2001 CFS Cessna VOC, Particle Count, Ozone, and Meteorological Data 1 CESSNA 188 BAROMETERS, TEMPERATURE PROBES, UV OZONE DETECTORS, GAS CHROMATOGRAPHS, WIND VANES, HUMIDITY SENSORS, OPC 2001-08-14 to 2001-08-31

N: 49.39 S: 48.85 E: 180 W: -180

ASCII
NARSTO PAC2001 Langley Site Gaseous, Particle, and Meteorological Data 1 GROUND STATIONS, METEOROLOGICAL STATIONS AETHALOMETER, TEMPERATURE PROBES, UV OZONE DETECTORS, GC-MS, TEOM, CHEMILUMINESCENCE, FLUORESCENCE SPECTROSCOPY, ION CHROMATOGRAPHS, HUMIDITY SENSORS, IR CO2 ANALYZER, PRESSURE SENSORS 2001-08-08 to 2001-09-02

N: 49.16 S: 48.41 E: -121.94 W: -123.6

ASCII
NARSTO PAC2001 NRC-IAR Convair 580 Particle Count, Ozone, Meteorological Data 1 CONVAIR CV-580 BAROMETERS, TEMPERATURE PROBES, UV OZONE DETECTORS 2001-08-14 to 2001-08-30

N: 60 S: 48.3 E: 180 W: -180

ASCII
NARSTO PAC2001 Sumas Eagle Ridge Gaseous, Particle, and Meteorological Data 1 GROUND STATIONS, METEOROLOGICAL STATIONS AETHALOMETER, UV OZONE DETECTORS, GC-MS, TEOM, CHEMILUMINESCENCE, FLUORESCENCE SPECTROSCOPY, TEMPERATURE SENSORS, ION CHROMATOGRAPHS, HUMIDITY SENSORS, IR CO2 ANALYZER, PRESSURE SENSORS 2001-08-13 to 2001-09-05

N: 49.06 S: 49.04 E: -122.24 W: -122.26

ASCII
NARSTO Pacific 2001 Air Quality Study (PAC2001) Golden Ears Gaseous and Particulate Matter (PM) Data 1 GROUND STATIONS AETHALOMETER, TEMPERATURE PROBES, UV OZONE DETECTORS, GAS CHROMATOGRAPHS, XRF, CHEMILUMINESCENCE, ION CHROMATOGRAPHS, HUMIDITY SENSORS, DIFFERENTIAL MOBILITY ANALYZERS, WIND MONITOR, PRESSURE SENSORS 2001-08-03 to 2001-08-11

N: 49.28 S: 49.27 E: -122.5 W: -122.58

ASCII
NARSTO Pacific 2001 Air Quality Study (PAC2001) Slocan Park (SLPK) Slocan Park Site Gaseous, Partculate Matter (PM), and Meteorological Data 1 GROUND STATIONS, METEOROLOGICAL STATIONS AETHALOMETER, TEMPERATURE PROBES, UV OZONE DETECTORS, GC-MS, TEOM, CHEMILUMINESCENCE, FLUORESCENCE SPECTROSCOPY, ION CHROMATOGRAPHS, HUMIDITY SENSORS, IR CO2 ANALYZER, PRESSURE SENSORS 2001-08-11 to 2001-09-01

N: 49.24 S: 49.23 E: -123.04 W: -123.06

ASCII
NARSTO SOS99 Nashville Tennessee Valley Authority (TVA) Surface Meteorology and Chemistry Data 1 GROUND STATIONS, METEOROLOGICAL STATIONS NDIR GAS ANALYZER, UV OZONE DETECTORS, PYRANOMETERS, CHEMILUMINESCENCE, FLUORESCENCE SPECTROSCOPY, ANEMOMETERS, THERMISTORS 1999-06-15 to 1999-07-16

N: 36.25 S: 36.16 E: -86.78 W: -87.36

ASCII
NARSTO SOS99 Nashville WP-3D Orion Air Chemistry Data 1 GROUND STATIONS BAROMETERS, LOPC-PMS, HPLC, HYGROMETERS, CHEMILUMINESCENCE, GPS, SPECTRORADIOMETERS, THERMISTORS 1999-06-26 to 1999-07-19

N: 40.11 S: 27.7 E: -77.97 W: -94.04

ASCII
NCEP/DOE Reanalysis II, for GSSTF, 0.25 x 0.25 deg, Daily Grid V3 (GSSTF_NCEP) 3 NCEP-GFS NOT APPLICABLE 1987-07-01 to 2009-01-01

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

NCEP/DOE Reanalysis II, for GSSTF, 0.25x0.25 deg, Monthly grid V3 (GSSTFM_NCEP) 3 NCEP-GFS NOT APPLICABLE 1987-07-01 to 2008-12-31

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

NCEP/DOE Reanalysis II in HDF-EOS5, for GSSTF2c, 1x1 deg Daily grid V2c (GSSTF_NCEP) 2c NCEP-GFS NOT APPLICABLE 1987-07-01 to 2009-01-01

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

NCEP/DOE Reanalysis II in HDF-EOS5, for GSSTF2c, 1x1 deg Monthly grid V2c (GSSTFM_NCEP) 2c NCEP-GFS NOT APPLICABLE 1987-07-01 to 2008-12-31

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

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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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