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RISObject-Based Verification of Precipitation Forecasts. Part II: Application to Convective Rain Systems
Publisher: American Meteorological Society
Abstract: The authors develop and apply an algorithm to define coherent areas of precipitation, emphasizing mesoscale convection, and compare properties of these areas with observations obtained from NCEP stage-IV precipitation ...
Object-Based Verification of Precipitation Forecasts. Part I: Methodology and Application to Mesoscale Rain Areas
Publisher: American Meteorological Society
Abstract: A recently developed method of defining rain areas for the purpose of verifying precipitation produced by numerical weather prediction models is described. Precipitation objects are defined in both forecasts and observations ...
Using Satellite Data to Reduce Spatial Extent of Diagnosed Icing
Publisher: American Meteorological Society
Abstract: Overprediction of the spatial extent of aircraft icing is a major problem in forecaster products based on numerical model output. Dependence on relative humidity fields, which are inherently broad and smooth, is the cause ...
Intercomparison of In-Flight Icing Algorithms. Part II: Statistical Verification Results
Publisher: American Meteorological Society
Abstract: Recent research to improve forecasts of in-flight icing conditions has involved the development of algorithms to apply to the output of numerical weather prediction models. The abilities of several of these algorithms to ...
The Method for Object-Based Diagnostic Evaluation (MODE) Applied to Numerical Forecasts from the 2005 NSSL/SPC Spring Program
Publisher: American Meteorological Society
Abstract: The authors use a procedure called the method for object-based diagnostic evaluation, commonly referred to as MODE, to compare forecasts made from two models representing separate cores of the Weather Research and Forecasting ...
Application of Object-Based Time-Domain Diagnostics for Tracking Precipitation Systems in Convection-Allowing Models
Publisher: American Meteorological Society
Abstract: eaningful verification and evaluation of convection-allowing models requires approaches that do not rely on point-to-point matches of forecast and observed fields. In this study, one such approach?a beta version of the ...
Multiyear Droughts and Pluvials over the Upper Colorado River Basin and Associated Circulations
Publisher: American Meteorological Society
Abstract: his study analyzes spatial and temporal characteristics of multiyear droughts and pluvials over the southwestern United States with a focus on the upper Colorado River basin. The study uses two multiscalar moisture indices: ...
Model-Evaluation Tools for Three-Dimensional Cloud Verification via Spaceborne Active Sensors
Publisher: American Meteorological Society
Abstract: louds pose many operational hazards to the aviation community in terms of ceilings and visibility, turbulence, and aircraft icing. Realistic descriptions of the three-dimensional (3D) distribution and temporal evolution ...
The Model Evaluation Tools (MET): More than a decade of community-supported forecast verification
Publisher: American Meteorological Society
Abstract: MET is a community-based package of state-of-the-art tools to evaluate predictions of weather, climate, and other phenomena, with capabilities to display and analyze verification results via the METplus system.Forecast ...