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.
Sub-categories
Climate datasets

Years of record
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Data from rain gauge stations, satellites, and sounding observations have been merged to estimate monthly rainfall on a 2.5-degree global grid from 1979 to the…
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Timestep
- Climatology, Monthly
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Domain
- Global
Experts contributing reviews
- Pendergrass, Angeline | Wang, Jian-Jian

Years of record
- N/A
Precipitation (rain, snow, hail, ...) is one of the key components of the hydrological cycle. Its societal importance cannot be over stated. For climate research…
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Formats
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Timestep
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Domain
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Collections
- Overview / Comparison page
Experts contributing reviews
- N/A

Years of record
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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…
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-
Formats
- netCDF
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Timestep
- Climatology, Sub-daily, Monthly, Pentad
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Domain
- Global
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Collections
- Boundary Conditions
Experts contributing reviews
- N/A

Years of record
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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…
Main variables and Earth System components
Atmosphere Evaporation Precipitation Radiation Wind Stress Land Runoff and Streamflow Ocean Surface Flux-
Formats
- netCDF
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Timestep
- Monthly
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Domain
- Global
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Collections
- Diagnostic Data Sets, NCAR-DOE-CESM, atmosdiagnostics, oceandiagnostics
Experts contributing reviews
- Yeager, Stephen

Years of record
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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…
Main variables and Earth System components
Atmosphere Air Temperature Geopotential Height Precipitable waterExperts contributing reviews
- Kobayashi, Shinya

Years of record
- to
Using a much improved atmospheric model and assimilation system from those used in ERA-40, ERA-Interim represents a third generation reanalysis. Several of the…
Main variables and Earth System components
Atmosphere Air Temperature Geopotential Height Precipitable water Precipitation-
Timestep
- Sub-daily, Daily, Monthly
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Domain
- Global
Experts contributing reviews
- Dee, Dick

Years of record
- N/A
Reanalysis a systematic approach to produce data sets for climate monitoring and research. Reanalyses are created via an unchanging ("frozen") data assimilation…
Main variables and Earth System components
Atmosphere-
Formats
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Timestep
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Domain
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Experts contributing reviews
- Dee, Dick | Fasullo, John | Shea, Dennis | Walsh, John

Years of record
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The uneven distribution of incoming and outgoing radiation is the primary driver of the climate system. The resulting flows of energy by the climate components (…
Main variables and Earth System components
Atmosphere Budget Evaporation Evaporation-Precipitation Radiation-
Formats
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Timestep
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Domain
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Collections
- Climate Analysis Section (CAS) Data Catalog
Experts contributing reviews
- N/A

Years of record
- to
Era-Interim data are used to derive monthly mass, moisture and energy budget products. Each term is available. Atmospheric energy, mass, and moisture budgets can…
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Formats
- netCDF
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Timestep
- Monthly
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Domain
- Global
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Collections
- Climate Analysis Section (CAS) Data Catalog
Experts contributing reviews
- N/A

Years of record
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The goal of the North American Land Data Assimilation System (NLDAS) is to construct quality-controlled, and spatially and temporally consistent, land-surface…
Main variables and Earth System components
Atmosphere Air Temperature CAPE Evaporation Precipitation Radiation Specific Humidity Surface Pressure Wind-
Timestep
- Climatology, Sub-daily, Monthly
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Domain
- North America
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Collections
- N/A
Experts contributing reviews
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