Accession Number:

ADA586038

Title:

Determining the Impact of Meteorological Assimilation Data Ingest System (MADIS) Observations on Weather Research and Forecasting (WRF) Forecasts Utilizing National Center for Atmospheric Research's (NCAR's) Forecast Sensitivity to Observations Software Package

Descriptive Note:

Final rept. Oct 2012-Sept 2013

Corporate Author:

ARMY RESEARCH LAB WHITE SANDS MISSILE RANGE NM COMPUTATIONAL AND INFORMATION SCIENCES DIRECTORATE/BATTLEFIELD ENVIRONMENT DIV

Personal Author(s):

Report Date:

2013-10-01

Pagination or Media Count:

34.0

Abstract:

The National Center for Atmospheric Research s NCAR s Forecast Sensitivity to Observations software is employed to determine the impact of both surface and upper-air observations on Weather Research and Forecasting WRF forecasts during early February 2012. Scripts were engineered to execute both the WRF Preprocessing System and WRF code modules in order to generate 12- and 24-h forecasts. These forecasts served as input for the generation of a regional background error BE covariance tuned to the timeframe and region of interest, the southwestern U.S. This new BE covariance was used in a sensitivity study to determine the impact of observations on the WRF forecast. Observation types included surface observations such as mesonet, meteorological terminal aviation routine weather report METAR, and ship reports while the upper-air observations included profiler, balloon soundings, satellite, and pilot reports.

Subject Categories:

  • Meteorology
  • Economics and Cost Analysis

Distribution Statement:

APPROVED FOR PUBLIC RELEASE