Climate data guide content with tag Geopotential Height
AIRS (Atmospheric InfraRed Sounder): Version 6 Level 2
Years of record
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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 algorithmic improvements have been made by the AIRS Project in conjunction with the AIRS Science Team. Improvements include: (a) Improved soundings of Tropospheric and Sea Surface Temperatures, day and night…
Main variables and Earth System components
Atmosphere Aerosols Air Temperature CO Geopotential Height Ozone: Tropospheric Precipitable water Specific HumidityExperts contributing reviews
- N/A
Climate Forecast System Reanalysis (CFSR)
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 estimate of the state of these coupled domains over this period. The CFSR includes (1) coupling of atmosphere and ocean during the generation of the 6 hour guess field, (2) an interactive sea-ice model, and…
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
ERA-Interim
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 exhibited by ERA-40 such as too-strong precipitation over oceans from the early 1990's onwards and a too-strong Brewer-Dobson circulation in the stratosphere, were eliminated or significantly reduced…
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
Integrated Global Radiosonde Archive (IGRA)
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 Radiosonde Archive (IGRA; Durre et al. 2006, 2018). First released in 2004, IGRA is maintained and distributed by NOAA’s National Centers for Environmental Information (NCEI). IGRA v2.2, which was released in…
Main variables and Earth System components
Atmosphere Dew Point Temperature Geopotential Height Multiple variables Relative Humidity WindExperts contributing reviews
- Durre, Imke, Korzeniewski, Bryant
JRA-55
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 very limited set of observations while NCEP R1 uses an antiquated model and assimilation scheme). Compared to the previous generation Japanese Meteorological Agency (JMA) reanalysis, JRA-25, JRA-…
Main variables and Earth System components
Atmosphere Air Temperature Geopotential Height Precipitable waterExperts contributing reviews
- Kobayashi, Shinya
NASA MERRA
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 place observations from NASA’s Earth Observing System satellites into a climate context and to improve upon the hydrologic cycle represented in earlier generations of reanalyses. MERRA was generated…
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
NASA's MERRA2 reanalysis
Years of record
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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 Assimilation Office (GMAO). It spans the satellite observing era from 1980 to the present. The goals of MERRA-2 are to provide a regularly-gridded, homogeneous record of the global atmosphere, and to…
Main variables and Earth System components
Atmosphere Aerosols Air Temperature Geopotential Height Precipitable waterExperts contributing reviews
- Bosilovich, Michael, Cullather, Richard
NCEP NARR
Years of record
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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 cycle and land-atmosphere interaction. As such, it can be considered a second generation reanalysis. A unique feature is the direct assimilation of observed precipitation.
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
NCEP-NCAR (R1): An Overview
Years of record
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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 enhanced (additional, quality checked datasets) by NCAR's Data Support Section. Originally planned to span 1957-96 ("40-Year Reanalysis Project"), it was extended back to 1948 and continues to this…
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Timestep
- Sub-daily, Daily, Monthly
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Domain
- Global
Experts contributing reviews
- N/A
NOAA 20th-Century Reanalysis, Version 2 and 2c
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 observational validation data set, with quantified uncertainties, for assessing climate model simulations of the 20th century, with emphasis on the statistics of daily weather. The analyses are generated by…
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Timestep
- Sub-daily, Daily, Monthly
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Domain
- Global
Experts contributing reviews
- N/A