HRD Seminar – Dr. Jon Poterjoy, HRD/NRC – Post-Doc Fellow – 30 March 2017

Dr. Poterjoy presented a seminar on “Progress and Lessons Learned During a Six-Month Collaboration with NOAA NSSL on Convective-Scale Data Assimilation". ABSTRACT The nonlinear evolution of model forecast errors in convective weather regimes presents a major obstacle for predicting severe weather events. Ensemble forecasts provide an effective means of characterizing this uncertainty, which is a crucial step …

105th Anniversary of the SS Koombana disaster

On 20 March, 1912, the passenger, cargo, and mail-carrying ship SS Koombana encountered a tropical cyclone off Western Australia, killing 74 passengers and 76 crew members. Most of the tale is known from the captain of the SS Bullarra that survived the disaster.  Despite a falling barometer and a strong northeasterly wind, the Koombana departed Port Hedland …

New and Improved SFMR data set

The technique to process data from the Stepped Frequency Microwave Radiometer (SFMR), which observes surface wind speeds and rain rates within tropical cyclones, was upgraded prior to the 2015 hurricane season on all NOAA and Air Force Reserve Command hurricane reconnaissance aircraft. The processing method improves the observations across all wind speeds and rain rates. Brad …

HRD Monthly Science Meeting of March 2017

March’s science meeting consisted of 2 presentations: Lisa Bucci: P3DWL Observation Verification Jonathan Poterjoy: Getting the Most Out of Your Models and Observations: A Short Introduction to My Work All the presentations are available on the anonymous ftp site at: ftp://ftp.aoml.noaa.gov/hrd/pub/blog/meetings/2017/Science/HRD_SciMeet_20170309.zip