ERA40 Monthly Mean Model Resolution Gridded Upper Air Analysis on Model Levels from ECMWF
Entry ID: NCAR_DS119.2

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Summary
Abstract: The ECMWF Re-Analysis (ERA40) is a global atmospheric analysis of many conventional observations and satellite data streams for the period Sept,1957- Aug,2002. There are numerous data products that are separated into dataset series' based on resolution, vertical coordinate reference, and likely 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=ds118.1]. This dataset contains monthly means for 9 variables on the original 60 model levels, as well as surface geopotential and log of surface pressure. Variables are archived at T159 spectral resolution in spherical harmonics or the reduced n80 gaussian grid with a resolution of approximately 125 kilometers. All variables are output 4x a day for the entire period. Monthly means have been computed for each analysis hour as well as a daily mean. 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 Monthly Mean Model Resolution Gridded Upper Air Analysis on Model Levels 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/ds119.2/


Temporal Coverage
Start Date: 1957-09-01
Stop Date: 2002-08-31


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


Science Keywords
ATMOSPHERE >AIR QUALITY >TROPOSPHERIC OZONE    [Definition]
ATMOSPHERE >ALTITUDE >GEOPOTENTIAL HEIGHT    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >SURFACE PRESSURE    [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]
ATMOSPHERE >CLOUDS >CLOUD PROPERTIES >CLOUD FREQUENCY    [Definition]
ATMOSPHERE >CLOUDS >CLOUD MICROPHYSICS >CLOUD LIQUID WATER/ICE    [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: 119.2

Data Center Personnel
Name: RDA HELP DESK
Phone: (303)-497-1231
Fax: (303)-497-1291
Email: dss-info at mailman.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: 87.048 Gbytes

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

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