NCEP Reanalysis (R2)

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Climate Data Guide
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NCEP-DOE Reanalysis II (R2) is an improved version of the NCEP-NCAR Reanalysis I (R1). The improvements include an updated model with better physical parameterizations, assorted data assimilation errors were fixed and additional data were included. Still, it is still a 'first generation' product.

Key Strengths

Key Strengths

Improved version of NCEP-NCAR (R1)

Key Limitations

Key Limitations

Still a 1st generation reanalysis

Low spatial and temporal moisture variability over oceans (mainly model 'first guess' fields)

poor Southern Hemisphere

Please cite data sources, following the data providers' instructions
Suggested Data Citation
  1. NCEP_Reanalysis 2 data provided by the NOAA/OAR/ESRL PSD, Boulder, Colorado, USA, from their Web site at http://www.esrl.noaa.gov/psd/

Dataset DOIs
None
Hosted Climate Index Files
None
Usage Restrictions
None

Other Information

Earth system components and main variables
Type of data product
Dataset collections
None

Years of record
to
Data time period extended
Yes, data set is extended
Timestep
Sub-daily, Daily, Monthly
Domain
Formats:
Input Data

Rawindsondes; ICOADS, station data, aircraft, satellite retrievals

Vertical Levels:
None
Missing Data Flag
Spatially complete
Ocean or Land
Ocean & Land
Spatial Resolution

2.5°x2.5° 28 levels 3 hPA top

Model Resolution (reanalysis)

T62 28 levels

Data Assimilation Method
Model Vintage (reanalysis)

2001