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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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 WindExperts contributing reviews
- Durre, Imke | Korzeniewski, Bryant
Years of record
- to
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…
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Formats
- ascii
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Timestep
- N/A
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Collections
- N/A
Experts contributing reviews
- Marshall, Gareth
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 assimilate a…
Main variables and Earth System components
Atmosphere Air Temperature Geopotential Height Precipitable waterExperts contributing reviews
- Kobayashi, Shinya
Years of record
- to
AIRS Version 6 Level 2 data represent a significant improvement over AIRS Version 5 Level 2 products in terms of greater stability, yield, and quality. Several…
Main variables and Earth System components
Atmosphere Aerosols Air Temperature CO Geopotential Height Ozone: Tropospheric Precipitable water Specific HumidityExperts contributing reviews
- N/A
Years of record
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The Twentieth Century Reanalysis (20CR) provides a comprehensive global atmospheric circulation data set spanning 1850-2014. Its chief motivation is to provide an…
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Timestep
- Sub-daily, Daily, Monthly
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Domain
- Global
Experts contributing reviews
- N/A
Years of record
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The CFSR is a third generation reanalysis product. It is a global, high resolution, coupled atmosphere-ocean-land surface-sea ice system designed to provide the best…
Main variables and Earth System components
Atmosphere Air Temperature Geopotential Height Precipitable water Ocean-
Formats
- GRIB
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Timestep
- Sub-daily, 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 Modern Era Retrospective-Analysis for Research and Applications (MERRA) was undertaken by NASA’s Global Modeling and Assimilation Office with two primary objectives: to…
Main variables and Earth System components
Atmosphere Air Temperature Geopotential Height Precipitable water Water Vapor-
Timestep
- Sub-daily, Monthly
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Domain
- Global
Experts contributing reviews
- N/A
Years of record
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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 inaccuracies…
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
- to
The Modern-Era Retrospective analysis for Research and Applications, version 2 (MERRA-2) is a global atmospheric reanalysis produced by the NASA Global Modeling and…
Main variables and Earth System components
Atmosphere Aerosols Air Temperature Geopotential Height Precipitable waterExperts contributing reviews
- Bosilovich, Michael | Cullather, Richard
Years of record
- to
A high resolution (32km x 29 pressure levels) data set focused upon the North American Region. Relative to the NCEP-DOE (R2) it has a much improved land-hydrology, diurnal…
Main variables and Earth System components
Atmosphere Air Temperature Geopotential Height Precipitable water Land-
Formats
- GRIB
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Timestep
- Climatology, Sub-daily, Monthly
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Domain
- North America
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Collections
- N/A
Experts contributing reviews
- N/A
Years of record
- to
NCEP-NCAR (R1) is the original reanalysis effort. It uses a frozen global state-of-the-art global data assimilation system (as of 11 January 1995). The original database was…
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Timestep
- Sub-daily, Daily, Monthly
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Domain
- Global
Experts contributing reviews
- N/A
Years of record
- N/A
A climate index is a simple diagnostic quantity that is used to characterize an aspect of a geophysical system such as a circulation pattern. A variety of methods have been…
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Formats
- N/A
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Timestep
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Domain
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Collections
- Overview / Comparison page
Experts contributing reviews
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