Skip to main content

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Beta

Catalog datasets represent a fraction of data in use by active WMA projects. The team is working on including more datasets to provide a complete view of data-in-use. Let us know how your experience is!

Datasets

NCEP-NCAR Reanalysis 1

Domain: Climate

Variables: Atmospheric model output

Spatial Resolution: 2.5 degrees

Temporal Frequency: 6 hours; daily; monthly

Temporal Coverage: 1948 - Present

Spatial Extent: Global

Source: NCEP; NCAR

Update Type: Dynamic

Update Frequency: daily

Update Detail: append

Access:

Description:

The NCEP/NCAR Reanalysis 1 project is using a state-of-the-art analysis/forecast system to perform data assimilation using past data from 1948 to the present. The data have 6-hour temporal resolution (0000, 0600, 1200, and 1800 UTC) and 2.5 degree spatial resolution. The NCEP/NCAR Reanalysis is an atmospheric reanalysis produced by the National Centers for Environmental Prediction (NCEP) and the National Center for Atmospheric Research (NCAR). It is a continually updated globally gridded data set that represents the state of the Earth’s atmosphere, incorporating observations and numerical weather prediction (NWP) model output from 1948 to present.

Citation:

E. Kalnay E., Kanamitsu, M., Kistler, R., Collins, W., Deaven, D., Gandin, L., Iredell, M., Saha, S., White, G., Woollen, J., Zhu, Y., Chelliah, M., Ebisuzaki, W., Higgins, W., Janowiak, J., Mo, K.C., Ropelewski, C., Wang, J., Leetmaa, A., Reynolds, R., Jenne, R., Joseph, D., 1996, The NCEP/NCAR 40-year reanalysis project, Bulletin of the American Meteorological Society, volume 77 Issue 3, pages 437-472, https://doi.org/10.1175/1520-0477(1996)077%3C0437:TNYRP%3E2.0.CO;2