GCIP/EOP Surface: Precipitation NCEP/EMC 4KM Gridded Data (GRIB) Radar Est. w/bias removal UBR -2001
Publisher: EOL Data Support  [contact email: eol-datahelp AT ucar.edu]  [web page]
Project: GCIP > GEWEX Continental-Scale International Project
Project: GCIP/EAOP-99: GCIP Large Scale Area-East EAOP-99
Project: GCIP/EOP: GCIP Enhanced Observing Period
Project: GCIP/ESOP-97: GCIP Large Scale Area-North Central ESOP-97
Project: GCIP/ESOP-98: GCIP Large Scale Area-North Central ESOP-98
Project: GCIP/LSA-NW 00: GCIP Large Scale Area-North West EAOP-00
Project: GCIP/LSA-NW 99: GCIP Large Scale Area-North West EAOP-99
Project: GCIP/NESOB-97: ARM/GCIP Near-Surface Observation Data Set - 1997
Project: Operational: Operational Datasets
Project: SGP97 > Southern Great Plains 1997 Hydrology Experiment
Project: SGP99: Southern Great Plains 1999 Hydrology Experiment
Project: UMRBPP > Upper Missouri River Basin Pilot Project
Summary: This dataset contains the National Centers for Environmental Prediction (NCEP) Environmental Modeling Center (EMC) 4 KM GRIB radar estimate after bias removal (UBR) data. A prototype, real-time, hourly, multi-sensor National Preciptation Analysis (NPA) has been developed at NCEP in cooperation with the Office of Hydrology (OH). This analysis merges two data sources that are currently being collected in real-time by OH and NCEP. Hourly digital precipitation (HDP) radar estimates are created by the WSR-88D Radar Product Generator on a 131 X 131 4-km grid centered over each radar site. Data analysis routines, including a bias correction of the radar estimates using rain gage data, have been adapted by NCEP on a national 4-km grid from algorithms developed by OH and executed regionally at NWS River Forecast Centers (RFC). This dataset only contains the NCEP 4 KM GRIB Data hourly, 6-hourly, and daily radar estimate after bias removal. 6-hourly data are generally available at 00Z, 06Z, 12Z, and 18Z. Daily data are generally available at 12Z. Depending on the time period selected, all three datasets may or may not be available. Other NCEP 4 KM GRIB Data including gage-only analysis, multi-sensor analysis (gage and unbiased radar), radar estimate (no bias removal), and gage-only analysis using 24h accumulated (RFC) data are available as independent datasets. Depending on the time period selected, all five types may or may not be available. Please see GCIP/EOP: Surface NCEP Ancillary Catalogue of Available GCIP Precipitation Data (NCEP/EMC). The format of the files is GRIB. The files are compressed using the UNIX compress command and uncompress must be used before decoding. This dataset is provided as is and was not quality controlled by UCAR/JOSS.
Related Link: Documentation: katz_stage4_readme.txt
Related Link: EOL Data Archive website for dataset GCIP/EOP Surface: Precipitation NCEP/EMC 4KM Gridded Data (GRIB) Radar Est. w/bias removal UBR -2001 (21.052), containing more information and data download access
Related Link: Related project: GCIP/EAOP-98
Related Link: Related project: GCIP/EAOP-99
Related Link: Related project: GCIP/EOP
Related Link: Related project: GCIP/ESOP-97
Related Link: Related project: GCIP/ESOP-98
Related Link: Related project: GCIP/LSA-NW 00
Related Link: Related project: GCIP/LSA-NW 99
Related Link: Related project: GCIP/NESOB-97
Related Link: Related project: Operational
Related Link: Related project: SGP97
Related Link: Related project: SGP99
Related Link: Related project: UMRBPP
 
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Dataset-level access
Codiac access: order, subset, change formats; pickup data by FTP [WebForm]
Nested Collections
companion: NCEP/EMC U.S. Precipitation Ancillary Station List
companion: GCIP/EOP Surface: Precipitation NCEP/EMC Ancillary Catalog of Available GCIP Precipitation Data-2001
supercedes: GCIP/EOP Surface: Precipitation NCEP/EMC 4 KM Gridded Dataset (GRIB)