CISL RDA: ds131.1 Home Page

Forgot Password? Register Now Help

UCAR > NCAR > CISL

Go to Dataset:

Home

ds131.1 Home Page ^Help

NOAA-CIRES Twentieth Century Global Reanalysis Version II

The Twentieth Century Reanalysis Project, supported by the Earth System Research Laboratory Physical Sciences Division from NOAA and the University of Colorado CIRES/Climate Diagnostics Center, is an effort to produce a global reanalysis dataset spanning a portion of the nineteenth century and the entire twentieth century, assimilating only surface observations of synoptic pressure, monthly sea surface temperature and sea ice distribution. Products include 6-hourly ensemble mean and spread analysis fields on a 2x2 degree global lat/lon grid, and 3 and 6-hourly ensemble mean and spread forecast (first guess) fields on a global Gaussian T-62 grid. Fields are accessible in yearly time series (1 file/parameter) and monthly synoptic time (all parameters/synoptic hour) files. Ensemble grids, spectral coefficients, and other information will available by offline request in the future.

NOTE: All Version II data are now available for online access.

The Twentieth Century Reanalysis Project used resources of the National Energy Research Scientific Computing Center and of the Oak Ridge Leadership Computing Facility at Oak Ridge National Laboratory, which are supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 and Contract No. DE-AC05-00OR22725, respectively.

More information is available.

PERIODS:

1869-11-01 00:00 +0000 to 2010-12-31 21:00 +0000 (Entire dataset)

Period details by subset

Period details by subset:
1869-11-01 00:00 +0000 to 2010-12-31 18:00 +0000 (Monthly Synoptic Analysis Fields (2x2 degree Lat/Lon))
1869-11-01 00:00 +0000 to 2010-12-31 18:00 +0000 (Monthly Synoptic First Guess Forecast Fields (Gaussian T-62))
1869-11-01 00:00 +0000 to 2010-12-31 18:00 +0000 (Yearly Time Series Analysis Fields (2x2 degree Lat/Lon))
1869-11-01 00:00 +0000 to 2010-12-31 21:00 +0000 (Yearly Time Series First Guess Forecast Fields (Gaussian T-62))

UPDATES:

Irregularly

USAGE:

RELEASE POLICY: Please use the citations listed below (See Publications section below) in any submitted publications using this dataset.

Additionally, papers using the Twentieth Century Reanalysis Project dataset are requested to include the following text in their acknowledgments:

Support for the Twentieth Century Reanalysis Project dataset is provided by the U.S. Department of Energy, Office of Science Innovative and Novel Computational Impact on Theory and Experiment (DOE INCITE) program, and Office of Biological and Environmental Research (BER), and by the National Oceanic and Atmospheric Administration Climate Program Office.

VARIABLES:

Air Temperature	Albedo	Cloud Amount/Frequency	Cloud Base Pressure
Cloud Liquid Water/Ice	Cloud Top Pressure	Convection	Evaporation
Evapotranspiration	Geopotential Height	Gravity Wave	Heat Flux
Humidity	Ice Depth/Thickness	Ice Extent	Land Cover
Longwave Radiation	Maximum/Minimum Temperature	Planetary Boundary Layer Height	Potential Temperature
Precipitable Water	Precipitation Rate	Runoff	Sea Level Pressure
Sea Surface Temperature	Shortwave Radiation	Skin Temperature	Snow Cover
Snow Depth	Snow Water Equivalent	Soil Moisture/Water Content	Surface Air Temperature
Surface Pressure	Surface Roughness	Surface Winds	Tropopause
Tropospheric Ozone	Upper Level Winds	Vegetation Cover	Vegetation Species
Vertical Wind Motion

GRIB parameter table: HTML | XML

LEVELS:

See the detailed metadata for level information

TYPES:

Grid

COVERAGE:

Longitude Range: Westernmost=180W Easternmost=180E
Latitude Range: Southernmost=90S Northernmost=90N

Detailed coverage information

Detailed coverage information:
1.875° x ~1.904° from 0E to 358.125E and 88.542N to 88.542S (192 x 94 Gaussian Longitude/Latitude) (/DSS/ds131.1/timeseries/sflxgrbfg/sflxgrbfg_sprd_2009_WEASD_sfc.grib)
1.875° x ~1.904° from 0E to 358.125E and 88.542N to 88.542S (192 x 94 Gaussian Longitude/Latitude) (Monthly Synoptic First Guess Forecast Fields (Gaussian T-62))
1.875° x ~1.904° from 0E to 358.125E and 88.542N to 88.542S (192 x 94 Gaussian Longitude/Latitude) (Yearly Time Series First Guess Forecast Fields (Gaussian T-62))
2° x 2°, 0E to 358E and 90N to 90S (180 x 91 Longitude/Latitude) (/DSS/ds131.1/timeseries/sflxgrbfg/sflxgrbfg_sprd_2009_WEASD_sfc.grib)
2° x 2°, 0E to 358E and 90N to 90S (180 x 91 Longitude/Latitude) (Monthly Synoptic Analysis Fields (2x2 degree Lat/Lon))
2° x 2°, 0E to 358E and 90N to 90S (180 x 91 Longitude/Latitude) (Yearly Time Series Analysis Fields (2x2 degree Lat/Lon))

SOURCES:

DOC/NOAA/ESRL

Earth System Research Laboratory, NOAA, U.S. Department of Commerce

PUBLICATIONS:

Compo, G.P., J.S. Whitaker, P.D. Sardeshmukh, N. Matsui, R.J. Allan, X. Yin,B.E. Gleason, R.S. Vose, G. Rutledge, P. Bessemoulin, S. Bronnimann, M. Brunet, R.I. Crouthamel, A.N. Grant, P.Y. Groisman, P.D. Jones, M.C. Kruk, A.C. Kruger, G.J. Marshall, M. Maugeri, H.Y. Mok, O. Nordli, T.F. Ross, R.M. Trigo, X.L. Wang, S.D. Woodruff, S.J. Worley, 2010: The Twentieth Century Reanalysis Project. Quarterly J. Roy. Met. Soc., Submitted, Submitted.

G.P. Compo, J.S. Whitaker, and P.D. Sardeshmukh, 2008: The 20th Century Reanalysis Project. Proceedings of the Proceedings of the Third WCRP International Conference on Reanalysis, 28 January - 1 February 2008, WCRP, The University of Tokyo Japan..

Compo,G.P., J.S. Whitaker, and P.D. Sardeshmukh, 2006: Feasibility of a 100 year reanalysis using only surface pressure data. Bull. Amer. Met. Soc., 87, 175-190.

Whitaker, J.S., G.P.Compo, X. Wei, and T.M. Hamill, 2004: Reanalysis without radiosondes using ensemble data assimilation. Mon. Wea. Rev., 132, 1190-1200.

Recommended acknowledgement for this dataset:
"The data for this study are from the Research Data Archive (RDA) which is maintained by the Computational and Information Systems Laboratory (CISL) at the National Center for Atmospheric Research (NCAR). NCAR is sponsored by the National Science Foundation (NSF). The original data are available from the RDA (http://dss.ucar.edu) in dataset number ds131.1."

VOLUME:

13.40 TBytes (Entire dataset)

Volume details by subset

Volume details by subset:
Yearly Time Series Analysis Fields (2x2 degree Lat/Lon): 1.77 TBytes
Yearly Time Series First Guess Forecast Fields (Gaussian T-62): 1.60 TBytes
Monthly Synoptic Analysis Fields (2x2 degree Lat/Lon): 1.77 TBytes
Monthly Synoptic First Guess Forecast Fields (Gaussian T-62): 1.68 TBytes
Hxens files: 199.87 GBytes
Prepbufrobs_assim files: 73.60 GBytes
High priority data tarfiles: 6.31 TBytes

DATA FORMATS:

WMO GRIB1

RELATED DATASETS:

ds090.0 - NCEP/NCAR Global Reanalysis Products, 1948-continuing
ds091.0 - NCEP/DOE Reanalysis II
ds115.0 - ECMWF Re-analysis Level III-B Global Surface Analyses, 1979Jan-1993Dec
ds124.0 - ERA40 T85 6-hourly Surface Analysis and Surface Forecast Fields, created at NCAR
ds126.0 - ERA40 T85 Monthly Mean Surface Analysis and Surface Forecast Fields, created at NCAR
ds131.0 - NOAA-CIRES Twentieth Century Global Reanalysis Version I (1908-1958)
ds132.0 - International Surface Pressure Databank (ISPDv2) 1768 to 2010
ds608.0 - NCEP North American Regional Reanalysis (NARR)
ds625.0 - Japanese 25-year Reanalysis Project
ds627.0 - ERA-Interim Project

MORE DETAILS:

View more details for this dataset, including dataset citation, data contributors, and other detailed metadata

CONTACT:

For assistance with this dataset, please contact Doug Schuster (303-497-1216) .

DATA ACCESS:

Click the

tab here or in the navigation bar at the top of the page.

COMMUNITY:

(0) comments about this dataset from other users in the community
Sign in to add your comment

The Research Data Archive is managed by the Data Support Section of the Computational and Information Systems Laboratory at the National Center for Atmospheric Research in Boulder, Colorado. NCAR is sponsored by the National Science Foundation.

Follow us:

RSS

Facebook

Twitter