ERA40 Model Resolution Gridded Upper Air Forecast Fields on Pressure Surfaces from ECMWF
Entry ID: NCAR_DS121.1

[ Update this Record ]

Summary
Abstract: This dataset contains ECMWF ERA40 model forecasts of geopotential, temperature, wind and moisture variables on 23 constant pressure surfaces for the period September, 1957 to August, 2002. The forecasts extend out to 36 hours beginning from the 00 and 12 UTC analyses and out to 6 hours beginning with the 06 and 18 UTC analyses. All variables, except moisture, are archived at global T159 spectral resolution in spherical harmonics, while the moisture is archived on a reduced N80 gaussian grid with an approximate horizontal resolution of 125 kilometers. The anlaysis fields have been archived in ds117.1 [http://rda.ucar.edu/datasets/ds117.1]. The ECMWF ERA40 project is a global atmospheric analysis of many conventional observations and satellite data streams for the period September,1957- August,2002. There are numerous data products that are separated into dataset series based on resolution, vertical coordinate reference, and possible research applications. Descriptions of the series organization and direct links to information about all ERA40 products are available [http://rda.ucar.edu/cgi-bin/joey/era40sum.pl?ds=ds121.1] The ERA-Interim data from ECMWF is an update to the ERA-40 project. The ERA-Interim data starts in 1989 and has a higher horizontal resolution (T255, N128 nominally 0.703125 degrees) than the ERA-40 data (T159, N80 nominally 1.125 degrees). ERA-Interim is based on a more current model than ERA-40 and uses 4-D VAR (as apposed to 3-D VAR in ERA-40). ECMWF will continue to run the ERA-Interim model in near real time thru at least 2010, and possibly longer. This data is available in ds627.0 [http://rda.ucar.edu/datasets/ds627.0].

Related URL
Link: VIEW RELATED INFORMATION


Link: VIEW RELATED INFORMATION
Description: ECMWF's ERA web site


Geographic Coverage
 N: 89.141 S: -89.141  E: 180.0  W: -180.0

Data Set Citation
Dataset Originator/Creator: UCAR/NCAR/CISL/DSS > Data Support Section, Computational and Information Systems Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research
Dataset Title: ERA40 Model Resolution Gridded Upper Air Forecast Fields on Pressure Surfaces from ECMWF
Dataset Publisher: UCAR/NCAR/CISL/DSS > Data Support Section, Computational and Information Systems Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research
Online Resource: http://rda.ucar.edu/datasets/ds121.1/


Temporal Coverage
Start Date: 1957-09-01
Stop Date: 2002-09-02


Data Resolution
Latitude Resolution: 1.125 degrees
Longitude Resolution: 1.121 degrees


Science Keywords
ATMOSPHERE >AIR QUALITY >TROPOSPHERIC OZONE    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >AIR TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC WATER VAPOR >HUMIDITY    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >CONVERGENCE/DIVERGENCE    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >VERTICAL WIND MOTION    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >VORTICITY    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE


Project
ESIP >Earth Science Information Partners Program    [Information]
ERA40 >ECMWF ERA40 Reanalysis Project    [Information]


Access Constraints
We are allowed to distribute this data to US scientists, scientists visiting US organizations, and Canadian scientists affiliated with UCAR member organizations only.


Use Constraints
The data can be used for non-commercial research only.


Keywords
ERA40DAS > ERA40 Data Assimilation System


Data Set Progress
COMPLETE


Data Center
Research Data Archive, Computational and Information Systems Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research    [Information]
Data Center URL: http://rda.ucar.edu/
Dataset ID: 121.1

Data Center Personnel
Name: RDA HELP DESK
Phone: (303)-497-1231
Fax: (303)-497-1291
Email: dssweb at ucar.edu
Contact Address:
National Center for Atmospheric Research
CISL/DSS
P.O. Box 3000
City: Boulder
Province or State: CO
Postal Code: 80307
Country: U.S.A.



Distribution
Distribution_Size: 4.346 Tbytes

Distribution_Format: GRIB1 > GRIdded Binary form, Edition 1


Personnel
JOEY COMEAUX
Role: TECHNICAL CONTACT
Phone: (303)-497-1256
Fax: (303)-497-1291
Email: joey at ucar.edu
Contact Address:
National Center for Atmospheric Research
CISL/DSS
P.O. Box 3000
City: Boulder
Province or State: CO
Postal Code: 80307
Country: U.S.A.


BOB DATTORE
Role: DIF AUTHOR
Phone: (303)-497-1825
Fax: (303)-497-1291
Email: dattore at ucar.edu
Contact Address:
National Center for Atmospheric Research
CISL/DSS
P.O. Box 3000
City: Boulder
Province or State: CO
Postal Code: 80307
Country: U.S.A.



Creation and Review Dates
Last DIF Revision Date: 2013-05-23

[ Update this Record ]


Link to Web Site