[Personnel: Last_Name='ESRL/PSD DATA INQUIRIES']
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NCEP Daily Global Analyses Entry ID: noaa_cdc052 |
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Summary
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Abstract:
NCEP prepares a twice-daily global analysis at 2.5 degrees resolution on pressure levels as a product of their operational forecast system. The original data set as stored at the National Center for Atmospheric Research (NCAR) starts in July 1976 and is being updated continuously at NCAR. We make a subset of this data available beginning in 1979. We also make available selected monthly mean datasets that go back in time (for the northern hemisphere). As part of a research project supported by the National Science Foundation, the NCEP data has been processed by NCAR into a convenient format for climatological studies. Some quality control and error-checking are done at this time. CDC has processed the twice-daily data by linearly interpolating to fill in missing values and then creating a daily average from the twice daily data. The data set provided is the (00Z + 12Z)/2. (i.e., analyzed) data. In the analysis process, the observations are interpolated to a grid. Because (1) large parts of the world (and many levels) have no observations and (2) the data are not taken at one time (data is included if it is within 6 hours of the forecast time), a model forecast is used to help with the interpolation. Therefore, technically speaking, the data provided is an analyzed data set, which is a blend of observational and model data. These analyses are then INITIALIZED. NOAAServer Codes: [POL 90 -90 180 -180] ; nodateline preview obtain Purpose: Scientific research. |
Related URL
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Link:
GET DATA
Description: Obtain this data set via HTML. Link: GET DATA Description: Obtain this data set via FTP. |
Geographic Coverage
| N: 90.0 | S: -90.0 | E: 180.0 | W: -180.0 |
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Data Set Citation
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Dataset Originator/Creator:
NOAA-CIRES Climate Diagnostics Center
Dataset Title: NCEP Daily Global Analyses Dataset Release Date: 2001-11-07 Dataset Release Place: Boulder, CO Dataset Publisher: NOAA-CIRES Climate Diagnostics Center Online Resource: http://www.cdc.noaa.gov/data/gridded/data.ncep.html |
Temporal Coverage
| Start Date: 1979-01-01 |
| Stop Date: 2001-11-07 |
Location Keywords
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GEOGRAPHIC REGION
> GLOBAL
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Science Keywords
| ATMOSPHERE >ALTITUDE >GEOPOTENTIAL HEIGHT [Definition] |
| ATMOSPHERE >ATMOSPHERIC PRESSURE >SEA LEVEL PRESSURE [Definition] |
| ATMOSPHERE >ATMOSPHERIC PRESSURE >SURFACE PRESSURE [Definition] |
| ATMOSPHERE >ATMOSPHERIC PRESSURE >ATMOSPHERIC PRESSURE MEASUREMENTS >TROPOPAUSE PRESSURE [Definition] |
| ATMOSPHERE >ATMOSPHERIC TEMPERATURE >AIR TEMPERATURE [Definition] |
| ATMOSPHERE >ATMOSPHERIC TEMPERATURE >AIR TEMPERATURE >TROPOPAUSE TEMPERATURE [Definition] |
| ATMOSPHERE >ATMOSPHERIC TEMPERATURE >POTENTIAL TEMPERATURE >SURFACE POTENTIAL TEMPERATURE [Definition] |
| ATMOSPHERE >ATMOSPHERIC WATER VAPOR >HUMIDITY >RELATIVE HUMIDITY [Definition] |
| ATMOSPHERE >ATMOSPHERIC WATER VAPOR >PRECIPITABLE WATER >PRECIPITABLE WATER CONTENT [Definition] |
| ATMOSPHERE >ATMOSPHERIC WATER VAPOR >WATER VAPOR [Definition] |
ISO Topic Category
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CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
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Access Constraints
| None. |
Use Constraints
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None. Acknowledgement of CDC would appreciated in products derived from these data. |
Keywords
| NCEP [POL 90.00 -90.00 180 -180] |
| Station pressure |
| u-wind |
| v-wind |
Data Set Progress
| COMPLETE |
Data Center
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Climate Analysis Branch, Physical Sciences Division, Earth System Research Laboratory, OAR, NOAA, U.S. Department of Commerce
[Information]
Data Center URL: http://www.esrl.noaa.gov/psd/psd1/ Dataset ID: CDC052
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Personnel
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ESRL/PSD DATA INQUIRIES Role: TECHNICAL CONTACT Role: DIF AUTHOR Email: esrl.psd.data at noaa.gov |
Creation and Review Dates
DIF Creation Date:
2002-03-25
Last DIF Revision Date:
2009-07-15
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