Climate Diagnostics Bulletin Updates to Climatologies and Indices Beginning with January 2011 Data (To be released in February 2011)

 

Beginning with the January 2011 monthly data, all climatologies, anomalies, and indices presented within and related to the monthly Climate Diagnostics Bulletin will be updated according to current WMO standards. For datasets that span at least the past 30 years (such as atmospheric winds and pressure), the new anomalies will be based on the most recent 30-year climatology period 1981-2010. For data records shorter than 30 years (such as sub-surface temperature anomalies), the new anomalies will be based on climatologies that begin with the earliest date possible and extend through 2010. Another such climatology update will only occur ten years from now, in 2021.

Both the new and old indices and analyses will be made available for several months, after which only products based on the new climatologies will be made available.

Products on the following web pages and their embedded links will be affected.

http://www.cpc.ncep.noaa.gov/products/CDB/

ftp://ftp.cpc.ncep.noaa.gov/wd52dg/data/indices/tele_index.nh

http://www.cpc.ncep.noaa.gov/data/teledoc/telemonc_new.gif

http://www.cpc.ncep.noaa.gov/data/indices/

ftp://ftp.cpc.ncep.noaa.gov/wd52dg/data/indices