EOL Seminar Series: Joshua Soderholm

Outcomes of the Coastal Convective Interactions Experiment and new horizons with the Australian radar network

Abstract: This seminar will present two topics from the Australian observational meteorology research space.

(1) The densely populated coastal regions of eastern Australia contains diverse physical settings that add considerable uncertainty for convection nowcasting, which currently relies primarily upon the analysis of broad-scale meteorology (e.g., synoptic boundaries and air masses). The Coastal Convective Interactions Experiment (CCIE) was coordinated to address these challenges with a focus upon the South East Queensland region of Australia. Major outcomes are presented, including (i) analysis of thunderstorm hotspots drivers using an 18 year radar-derived climatology, and (ii) the critical near surface and boundary layer processes which favour the development of severe convective storms in marginal synoptic environments.

(2) Weather radar is a fundamental remote sensing tool, however, limitations in data access/standards and ongoing changes in technology presents considerable challenges (and opportunities) for the Australia community. Regarding accessibility, a proposed open-access solution for hosting the Australian operational radar archive using modern data standard is presented, drawing upon the success of the NEXRAD dataset. The database architecture, integration with the research community and applications for historical and real-time radar-based services are discussed. Alongside the 2017 arrival of operational dual-pol to the Australian Bureau of Meteorology radar network, the University of Queensland will be coordinating the calibration and verification of radar-based severe hail and wind detection algorithms. This will include both a multi-season field campaign in the South East Queensland region using mobile dual-pol radar, hail disdrometers and mobile wind towers, and a community science initiative to promote hail reporting. Outcomes will be applied to hazard nowcasting and to improving radar-derived hazard climatologies.

Bio: Joshua Soderholm a PhD Graduate from the University of Queensland, Australia and Australian Bureau of Meteorology. His dissertation explored the climatological and meteorological aspects of sea breeze interactions with warm-season thunderstorms in South East Queensland, Australia. As part of the PhD project, Joshua established the UQ-XPOL mobile radar was established and has seen several successful deployments across Australia for both convective and bushfire research. In addition, Joshua has also worked on radar applications for the energy distribution and insurance sectors and is a keen collaborator across operational, industry and amateur meteorology groups.

Building:

Room Number: 
1022 - Large Auditorium

Type of event:

Will this event be webcast to the public by NCAR|UCAR?: 
Announcement Timing: 
August 16, 2017 to August 22, 2017
Calendar Timing: 
Tuesday, August 22, 2017 - 3:30pm to 4:30pm