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NCEP/NCAR Reanalysis Data Sets (DSI-6160 through DSI-6165)

Entry ID: gov.noaa.ncdc.C00378

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Summary

Abstract: NCEP/NCAR Reanalysis Data Sets are 6 digital data sets, DS- 6160 through DSI-6165, archived at the National Climatic Data Center (NCDC). These data sets were provided by the National Centers for Environmental Prediction (NCEP). Until recently, the meteorological community has had to use analyses that supported the real-time weather forecasting. These analyses are very inhomogeneous in time, as ... there have been big improvements in the data assimilation systems. This played havoc with climate monitoring, as these improvements often produced changes in the apparent climate. Even fundamental quantities such as the strength of the Hadley cell have changed over the years as a result of the changes in the data assimilation systems. NCEP and the National Center for Atmospheric Research (NCAR) are cooperating in a reanalysis project to produce a 50-year record of global analyses of atmospheric fields in support of the needs of the research and climate monitoring communities. The reanalysis uses a frozen state-of-the-art global data assimilation system, and a data base as complete as possible. The data assimilation and the model used are identical to the global system implemented operationally at NCEP on 11 January 1995, except that the horizontal resolution is T62 (about 210 km). The data base has been enhanced with many sources of observations not available in real time for operations, provided by different countries and organizations. The system has been designed with advanced quality control and monitoring components, and can produce one month of reanalysis per day on a CRAY YMP/8 supercomputer. The quality and utility of the re-analyses should be superior to the original NCEP analyses because - a state-of-the-art data assimilation is used - more observations are used - quality control has been improved - the model/data assimilation procedure will remain essentially unchanged during the project - many more fields are being saved (ex. potential vorticity on isentropic surfaces, diabatic heating) - global (some older analyses were hemispheric) - better vertical resolution (stratosphere) The individual data sets as archived at NCDC are DSI-6160 6 hour forecast of parameters of model based sigma levels DSI-6161 Parameters of the model based sigma levels DSI-6162 Surface and radiation parameters DSI-6163 Analyzed parameters on 11 potential (isentropic) pressure levels DSI-6164 Analyzed parameters at 17 standard pressure levels DSI-6165 6 hour forecast of the analyzed parameters at 17 standard pressure levels.

Purpose: To make a wide range of climatic data available to researchers and the public.

SUPPLEMENTAL INFORMATION: data set

CURRENTNESS REFERENCE: Ground Condition

Related URL

Link: VIEW EXTENDED METADATA

Description: View Source Metadata document from the Metadata Manager and Repository (NMMR).

Link: VIEW RELATED INFORMATION

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: 90.0

S: -90.0

E: 180.0

W: -180.0

Data Set Citation

Dataset Originator/Creator: National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce

Dataset Title: NCEP/NCAR Reanalysis Data Sets (DSI-6160 through DSI-6165)

Dataset Release Date: Unknown

Data Presentation Form: tabular digital data

Online Resource: http://www.ncdc.noaa.gov

Temporal Coverage

Start Date: 1948-01-01

Stop Date: 1998-12-31

Location Keywords

GEOGRAPHIC REGION > GLOBAL

Data Resolution

Latitude Resolution: 210 Km
Longitude Resolution: 210 km
Horizontal Resolution Range: 100 km - < 250 km or approximately 1 degree - < 2.5 degrees

Science Keywords

ATMOSPHERE > AEROSOLS

ATMOSPHERE > AIR QUALITY

ISO Topic Category

GEOSCIENTIFIC INFORMATION

Project

PAGES > Past Global Changes, IGBP

Ancillary Keywords

Sea Surface Temperature reconstruction

SST Reconstruction

Data Set Progress

COMPLETE

Originating Center

NOAA/NCDC

Data Center

World Data Center for Paleoclimatology, Boulder

Data Center URL: http://www.ncdc.noaa.gov/paleo/

Data Center Personnel
Name: WDC/PALEOCLIMATOLOGY, BOULDER Phone: +1 (303) 497-6160 Fax: +1 (303) 497-6513 Email: paleo at noaa.gov Contact Address: World Data Center for Paleoclimatology NOAA/NCDC Code E/GCx3 325 Broadway City: Boulder Province or State: CO Postal Code: 80303 Country: USA

Distribution

Distribution Media: ftp

Distribution Format: text

Fees: none

Personnel

PETER B. DEMENOCAL

Role: INVESTIGATOR

Contact Address:

Lamont Doherty Earth Observatory

City: Palisades

Province or State: NY

Country: USA

THOMAS P. GUILDERSON

Role: INVESTIGATOR

JOSEPH ORTIZ

Role: INVESTIGATOR

Contact Address:

LDEO

Province or State: Palisades

Postal Code: NY

Country: USA

MICHAEL SARNTHEIN

Role: INVESTIGATOR

Publications/References

deMenocal, P.B., J. Ortiz, T. Guilderson, and M. Sarnthein, 2000, Coherent
High- and Low-Latitude Climate Variability During the Holocene Warm Period,
Science, 288 (5474), 2198-2202.

Creation and Review Dates

DIF Creation Date: 2006-11-16

Last DIF Revision Date: 2006-11-22

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