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An investigation of multisensor precipitation estimates (MPE) and operational use of MPE at the Middle Atlantic River Forecast Center (MARFC)
  • Published Date:
    2005
Filetype[PDF - 306.28 KB]


Details:
  • Personal Authors:
  • Corporate Authors:
    United States, National Weather Service,
  • Series:
    Eastern Region technical attachment (National Weather Service (U.S.)) ; no. 2005-03
  • Document Type:
  • Description:
    "There were three main reasons the Middle Atlantic River Forecast Center (MARFC) decided not to implement the Multisensor Precipitation Estimate (MPE) program into daily operations as soon as it was made available. First, MARFC has a relatively dense precipitation gage network, approximately one hourly gage per 139 square miles. Second, the hydrologic model used at MARFC was calibrated using gage-only MAP values as opposed to radar and gage derived mean areal precipitation values or MAPXs. Finally, there was a concern about the validity of MPE data and the potential discontinuities between the MAPs and MAPXs. However, MPE is available for operational use and is being used for Quantitative Precipitation Forecast (QPF) verification and by external users on a daily basis. Therefore, MARFC recognized the need to begin an investigation in order to evaluate workload issues, the quality of the data being provided, and the validity of using this data in operational hydrologic forecasting. A variety of analyses occurred: MPE data was quality controlled during the workload assessment, MPE data was obtained and analyzed by grid point and area values, and MAPX (radar and gage derived mean areal precipitation values) data was tested within the hydrologic model used at MARFC. The results of this study has led to some operational use of MPE and identified the need for further investigation concerning its use in operational hydrologic models"--Abstract.

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