Atmosphere

Atmospheric variables include temperature, precipitation, wind, pressure, clouds, greenhouse gases, and much more. Overview pages summarize and compare selected datasets of a given variable.

To find a specific dataset or variable, jump to the search box below or click your desired variable from among the blue sub-category buttons. Note that the classification of datasets by variable is approximate, especially for large, multi-variable datasets like reanalyses.

To see only the datasets accompanied by in-depth commentary, select the "Datasets with guidance" button when using the search box.

Climate datasets

Has expert guidance
QuikSCAT: near sea-surface wind speed and direction QuikSCAT: near sea-surface wind speed and direction

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The QuikSCAT mission was intended to obtain sea-surface wind speed and direction data under all weather and cloud conditions over Earth's oceans. SeaWinds, an active radar…

Main variables and Earth System components

Atmosphere Wind
CCMP: Cross-Calibrated Multi-Platform wind vector analysis CCMP: Cross-Calibrated Multi-Platform wind vector analysis

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The CCMP wind analysis is a near-global, high spatial and temporal resolution gridded dataset of surface wind vectors spanning 1987-present.  The input data are a…

Main variables and Earth System components

Atmosphere Wind

    • Timestep

    • Sub-daily

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WASWind: Wave and Anemometer-based Sea Surface Wind WASWind: Wave and Anemometer-based Sea Surface Wind

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"WASWind (Wave and Anemometer-based Sea Surface Wind) provides a bias-corrected marine surface wind dataset over the global oceans. Variables include scalar, zonal and…

Main variables and Earth System components

Atmosphere Wind Wind Stress

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    • Monthly

    • Collections

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Meridional Modes and their indices Meridional Modes and their indices

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In each of the world’s tropical ocean basins, year-to-year climate variability is primarily governed by fluctuations in the zonal sea surface temperature (SST) gradient and…

Main variables and Earth System components

Atmosphere Wind Ocean SST - sea surface temperature
U.S. Climate Extremes Index (CEI) U.S. Climate Extremes Index (CEI)

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The U.S. Climate Extremes Index (CEI) was first presented in 1995 as a framework for quantifying observed changes in climate within the contiguous United States. At…

Main variables and Earth System components

Atmosphere Air Temperature Maximum Air Temperature Minimum Air Temperature Precipitation Wind Land Drought
ICOADS Surface Marine Weather Observations ICOADS Surface Marine Weather Observations

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ICOADS (International Comprehensive Ocean-Atmosphere Data Set) is the most comprehensive archive of global marine surface climate observations available. Variables include…

Main variables and Earth System components

Atmosphere Air Temperature Budget Cloud Properties Latent & sensible heat flux Sea Level Pressure Specific Humidity Wind Ocean SST - sea surface temperature
Southern Hemisphere westerly jet strength and position Southern Hemisphere westerly jet strength and position

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The dynamics of the Southern Hemisphere westerly jet are described in terms of two indices, jet strength and jet latitude.  Here, these indices are defined using the…

Main variables and Earth System components

Atmosphere Wind
NCAR Sea Level Pressure NCAR Sea Level Pressure

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NCAR Sea Level Pressure is a gridded analysis of SLP based on land station reports, covering 1899 to present for latitudes 30°N-90°N. Quality controlled raw data plus…

Main variables and Earth System components

Atmosphere Sea Level Pressure
ERA-20C: ECMWF's atmospheric reanalysis of the 20th century (and comparisons with NOAA's 20CR) ERA-20C: ECMWF's atmospheric reanalysis of the 20th century (and comparisons with NOAA's 20CR)

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The ECMWF's first atmospheric reanalysis of the 20th Century, ERA-20C, provides a long, gridded dataset of many climate variables, spanning 1900-2010.  Observations…

Main variables and Earth System components

Atmosphere Multiple variables
UK Met Office; contributed by Colin Raymond HadISD: Sub-daily, non-interpolated weather station data

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HadISD ("Hadley Centre Integrated Surface Database") is a compendium of subdaily weather-station data developed by the UK Met Office that is based on NOAA NCEI's Integrated…

Main variables and Earth System components

Atmosphere Air Temperature at 2m Dew Point Temperature Precipitation Sea Level Pressure Storm data Wind

    • Timestep

    • Sub-daily

    • Collections

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FWI p95 in ERAI and CESM1-LE (contributed by Danielle Touma) Canadian Forest Fire Weather Index (FWI)

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Fire weather indices are used to quantify the meteorological conditions that can lead to fire ignition and spread. They are used to communicate fire danger levels to…

Main variables and Earth System components

Atmosphere

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    • Domain

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Figure 2: Map of the locations for all available IGRA v2.2 stations. Integrated Global Radiosonde Archive (IGRA)

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The largest publicly available collection of quality-controlled, globally-distributed, historical radiosonde and pilot balloon observations is the Integrated Global…

Main variables and Earth System components

Atmosphere Dew Point Temperature Geopotential Height Multiple variables Relative Humidity Wind

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    • Sub-daily

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Surface Flux and Meteorological Dataset: National Oceanography Centre (NOC) V2.0 Surface Flux and Meteorological Dataset: National Oceanography Centre (NOC) V2.0

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The National Oceanography Centre  (NOC) Version 2.0 Surface Flux and Meteorological Dataset is a monthly mean gridded dataset of marine surface measurements and derived…

Main variables and Earth System components

Atmosphere Air Temperature Cloud Properties Evaporation Latent & sensible heat flux Multiple variables Radiation Sea Level Pressure Specific Humidity Surface Pressure Surface solar radiation Water Vapor Wind Ocean SST - sea surface temperature Surface Flux
Livneh gridded precipitation and other meteorological variables for continental US, Mexico and southern Canada Livneh gridded precipitation and other meteorological variables for continental US, Mexico and southern Canada

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The Livneh et al. (2015) hydrometeorological dataset consists of gridded daily and monthly precipitation, maximum and minimum air temperature, and wind speed for the…

Main variables and Earth System components

Atmosphere Maximum Air Temperature Minimum Air Temperature Precipitation Wind
QBO: Quasi-Biennial Oscillation QBO: Quasi-Biennial Oscillation

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The quasi-biennial oscillation (QBO) is a quasi-periodic oscillation of the equatorial zonal wind between easterlies and westerlies in the tropical stratosphere with a mean…

Main variables and Earth System components

Atmosphere Wind

    • Timestep

    • Monthly

    • Collections

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  • Experts contributing reviews

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COREv2 Air-Sea Surface Fluxes COREv2 Air-Sea Surface Fluxes

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The Coordinated Ocean Research Experiments version 2  (COREv2) data set consists of a globally complete set of air-sea fluxes of momentum, heat and freshwater for 1948-…

Main variables and Earth System components

Atmosphere Evaporation Precipitation Radiation Wind Stress Land Runoff and Streamflow Ocean Surface Flux
ISCCP: International Satellite Cloud Climatology Project ISCCP: International Satellite Cloud Climatology Project

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The International Satellite Cloud Climatology Project (ISCCP) makes use of routine observations by operational weather satellites to provide a long-term (1983-2009), gridded…

Main variables and Earth System components

Atmosphere Cloud Properties
TerraClimate: Global, high-resolution gridded temperature, precipitation, and other water balance variables TerraClimate: Global, high-resolution gridded temperature, precipitation, and other water balance variables

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TerraClimate is a global gridded dataset of meteorological and water balance variables for 1958-present, available on a monthly timestep. Its relatively fine spatial…

Main variables and Earth System components

Atmosphere Air Temperature Maximum Air Temperature Minimum Air Temperature Potential Evapotranspiration Precipitation Wind Snow Water Equivalent Land evapotranspiration Runoff and Streamflow Soil Moisture

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    • Climatology, Monthly

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ERA5 atmospheric reanalysis ERA5 atmospheric reanalysis

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ERA5, the successor to ERA-Interim, provides global, hourly estimates of atmospheric, ocean-wave and land-surface variables, at a horizontal resolution of 31 km and 137…

Main variables and Earth System components

Atmosphere Land Ocean wave height
Arctic System Reanalysis (ASR) Arctic System Reanalysis (ASR)

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The Arctic System Reanalysis is a multi-agency, university-led retrospective analysis (reanalysis) of the Greater Arctic. ASR is produced using high-resolution versions of…

Main variables and Earth System components

Atmosphere Cryosphere Land Soil Moisture

    • Timestep

    • Sub-daily, Monthly

    • Collections

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  • Experts contributing reviews

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CERA-20C: ECMWF's Coupled Ocean-Atmosphere Reanalysis of the 20th Century CERA-20C: ECMWF's Coupled Ocean-Atmosphere Reanalysis of the 20th Century

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The CERA-20C is a global, coupled reanalysis spanning 1901-2010 with a focus on low-frequency climate variability.  Similar to ERA-20C, the surface observations…

Main variables and Earth System components

Atmosphere Multiple variables Cryosphere Sea Ice Concentration Ocean

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    • Sub-daily, Daily, Monthly

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Cloud observations from MODIS Cloud observations from MODIS

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The Moderate Resolution Imaging Spectroradiometer (MODIS) is scanning instrument that makes measurements in 36 spectral bands from the visible to the thermal infrared at…

Main variables and Earth System components

Atmosphere Cloud Properties
GHCN-D: Global Historical climatology Network daily temperatures GHCN-D: Global Historical climatology Network daily temperatures

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The Global Historical Climatology Network Daily database, GHCN-D, contains meteorological measurements from over 90,000 stations across the globe.  The majority of…

Main variables and Earth System components

Atmosphere Maximum Air Temperature Minimum Air Temperature Precipitation

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    • Daily

    • Collections

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CHELSA high-resolution land surface temperature and precipitation CHELSA high-resolution land surface temperature and precipitation

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The Climatologies at high resolution for the Earth's land surface (CHELSA) dataset contains high spatial resolution monthly climatologies of mean, maximum and minimum…

Main variables and Earth System components

Atmosphere Air Temperature Precipitation

    • Timestep

    • Climatology, Monthly

    • Collections

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NLDAS-2 Primary Forcing monthly average 2-m surface temperature for July 1980. NLDAS: North American Land Data Assimilation System

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The North American Land Data Assimilation System (NLDAS) integrates a large quantity of observation-based and model reanalysis data to produce long-term hourly atmospheric…

Main variables and Earth System components

Atmosphere Air Temperature CAPE Evaporation Precipitation Radiation Specific Humidity Surface Pressure Wind
Extended Edited Synoptic Cloud Reports Archive (EECRA) from Ships and Land Stations Over the Globe Extended Edited Synoptic Cloud Reports Archive (EECRA) from Ships and Land Stations Over the Globe

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"The Extended Edited Synoptic Cloud Reports Archive makes use of routine synoptic observations made by humans on ships over the ocean and at weather stations over land.…

Main variables and Earth System components

Atmosphere Cloud Properties

    • Timestep

    • Sub-daily

    • Collections

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OAFlux: Objectively Analyzed air-sea Fluxes for the global oceans. OAFlux: Objectively Analyzed air-sea Fluxes for the global oceans.

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"The OAFlux project aims to provide consistent, multi-decade, global analysis of air-sea heat, freshwater (evaporation), and momentum fluxes for use in studies of global…

Main variables and Earth System components

Atmosphere Latent & sensible heat flux Radiation Wind Ocean SST - sea surface temperature Surface Flux wind stress curl

    • Timestep

    • Daily, Monthly

    • Collections

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  • Experts contributing reviews

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Water Isotopes from Satellites Water Isotopes from Satellites

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Summary of 7 satellite-derived products providing a global snapshot of water isotope distribution in 3D, with good information on zonal gradients and seasonality…

Main variables and Earth System components

Atmosphere Water Isotopes
Map of May 2014 precipitation totals according to CHIRPSv2. Provided by C. Martinez. CHIRPS: Climate Hazards InfraRed Precipitation with Station data (version 2)

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Climate Hazards Group InfraRed Precipitation with Station data (CHIRPS) is a quasi-global (50S - 50N), land-only rainfall dataset with a range of temporal and spatial…

Main variables and Earth System components

Atmosphere Precipitation

    • Timestep

    • Climatology, Sub-daily, Daily, Monthly, Seasonal, Pentad

    • Collections

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Amundsen Sea Low indices Amundsen Sea Low indices

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The Amundsen Sea Low (ASL) is a climatological low pressure center located over the extreme southern Pacific Ocean, off the coast of West Antarctica.  Atmospheric…

Main variables and Earth System components

Atmosphere Sea Level Pressure
Japanese Ocean Flux Data sets with Use of Remote Sensing Observations (J-OFURO2) Japanese Ocean Flux Data sets with Use of Remote Sensing Observations (J-OFURO2)

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These ocean surface flux data sets are derived primarily using data from multiple satellites. The COARE 3.0 bulk algorithm [Fairall et al. (2003)] is used in J-OFURO2 for…

Main variables and Earth System components

Atmosphere Specific Humidity Wind Stress Latent & sensible heat flux Ocean Surface Flux

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HOAPS: Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data HOAPS: Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data

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The Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data (HOAPS) set is a satellite-based climatology of precipitation, evaporation and freshwater budget (…

Main variables and Earth System components

Atmosphere Evaporation Evaporation-Precipitation Precipitation Radiation Specific Humidity Wind Latent & sensible heat flux Precipitable water Ocean SST - sea surface temperature

  • Experts contributing reviews

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Tropical Moored Buoy System: TAO, TRITON, PIRATA, RAMA (TOGA) Tropical Moored Buoy System: TAO, TRITON, PIRATA, RAMA (TOGA)

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The Tropical Ocean Global Atmosphere program (TOGA) is a component of the World Climate Research Programme (WCRP) aimed specifically at the prediction of climate phenomena…

Main variables and Earth System components

Atmosphere Air Temperature Precipitation Radiation Relative Humidity Sea Level Pressure Wind Ocean Absolute Dynamic Topography (ADT) Ocean Heat Content SST - sea surface temperature Salinity Sub Surface Salinity Sub Surface Temperature u, v current components

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    • Sub-daily, Daily, Monthly, Weekly

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  • Experts contributing reviews

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NAM Spatial Pattern (DJFM) Hurrell wintertime SLP-based Northern Annular Mode (NAM) Index

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The NAM (or Arctic Oscillation) is defined as the first EOF of NH (20°-90°N) winter SLP data. It explains 23% of the extended winter mean (December-March) variance, and it…

Main variables and Earth System components

Atmosphere Sea Level Pressure
JRA-55 JRA-55

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Spanning 1958-present, JRA-55 is the longest third-generation reanalysis that uses the full observing system (in contrast, products like ERA-20C and NOAA 20CR assimilate a…

Main variables and Earth System components

Atmosphere Air Temperature Geopotential Height Precipitable water

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    • Sub-daily, Monthly

    • Collections

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Marshall Southern Annular Mode (SAM) Index (Station-based) Marshall Southern Annular Mode (SAM) Index (Station-based)

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The station-based index of the Southern Annular Mode (SAM) is based on the zonal pressure difference between the latitudes of 40S and 65S.  As such, the SAM index…

Main variables and Earth System components

Atmosphere Sea Level Pressure
Precipitation Data Sets: Overview & Comparison table Precipitation Data Sets: Overview & Comparison table

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Precipitation (rain, snow, hail, ...) is one of the key components of the hydrological cycle. Its societal importance cannot be over stated. For climate research,…

Main variables and Earth System components

Atmosphere Precipitation

  • Experts contributing reviews

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Global surface temperatures: BEST: Berkeley Earth Surface Temperatures Global surface temperatures: BEST: Berkeley Earth Surface Temperatures

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The Berkeley Earth Surface Temperatures (BEST) are a set of data products, originally a gridded reconstruction of land surface air temperature records spanning 1701-…

Main variables and Earth System components

Atmosphere Air Temperature Maximum Air Temperature Minimum Air Temperature Ocean SST - sea surface temperature
APHRODITE: Asian Precipitation - Highly-Resolved Observational Data Integration Towards Evaluation of Water Resources APHRODITE: Asian Precipitation - Highly-Resolved Observational Data Integration Towards Evaluation of Water Resources

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APHRODITE’s (Asian Precipitation - Highly-Resolved Observational Data Integration Towards Evaluation) gridded precipitation is a set of long-term (1951 onward) continental-…

Main variables and Earth System components

Atmosphere Air Temperature Precipitation