The 41st International Conference on Radar Meteorology (41RADAR), sponsored by the AMS and organized by the AMS Committee on Radar Meteorology, will be held 25-29 August 2025 in Toronto, Ontario, Canada and Online. Basic hotel and travel information will appear on the AMS website soon. The full conference program, registration, and general information will appear on the AMS web site (http://www.ametsoc.org) by June 2025.
Meeting Theme: Weather Knows No Boundaries
Meeting Sub-theme: Research-Development-Operations-Services
Oral and poster presentations are solicited on all topics related to radar meteorology. We particularly encourage submissions that (i) address specific scientific questions that can be answered using radar remote sensing; (ii) are innovative and novel in nature, including the use of new techniques/methods; and (iii) provide specific, focused, and detailed methodologies rather than general overviews of a topic.
Presentations on the following scientific themes are solicited:
Airborne and Spaceborne Radar: Single or multi-sensor analyses using radar systems aboard airborne platforms or current/future Earth-orbiting satellites from both scientific and commercial missions; emerging airborne/spaceborne instrument and technology demonstration radar concepts.
Artificial Intelligence in Radar Meteorology: Theoretical, model- and/or data-centric AI in radar meteorology; AI and machine learning advancements exemplified through weather radar applications; novel uncertainty quantification and eXplainable AI (XAI) techniques; submissions should have a clear emphasis on novel AI/ML methods.
Emerging Technology and Phased Arrays: Advances in radar hardware; phased array technology and array processing; radar networks; passive radar; solid-state radar; new technology integration for field campaigns; other innovative radar applications.
Microphysical Studies with Radar: Microphysical retrievals and inferences using dual-polarization and multi-frequency radars, including profiling and scanning radar and multi-instrumental approaches; algorithm development including hydrometeor classification and verification; linking of radar-inferred microphysics to theory and/or model parameterizations.
QPE and Hydrology: Use of polarimetric, scanning, and vertically pointing radar in QPE for both liquid and non-liquid precipitation; multi-frequency and multi-sensor (radar, lidar/gauge/disdrometer/microwave link) approaches to rain and snow estimation; radar-based precipitation phase algorithms.
Radar in Operational Meteorology: Studies that aim to improve/modernize, or utilize operational radar including new radar technologies; operational radar calibration; algorithms and products; data exchange and formats; open-source software; impacts of operational radar on weather forecasting; radar-based climatologies.
Severe Storms and Mesoscale Meteorology: Radar-based studies of deep convection, tornadoes, severe winds and hail, tropical cyclones, snowstorms, mesoscale convective systems, boundary layer meteorology, etc., including dual/multi-Doppler, polarimetric, and integrated radar-instrument analyses; results from field campaigns also are encouraged.
Signal/Data Processing Techniques for Radar: Novel sampling/scanning strategies; waveform design; calibration; techniques to improve the quality, coverage, and spatiotemporal resolution of radar data; algorithms used for quality assessment/control and multi-sensor fusion.
Use of Radar Data for Numerical Weather Prediction and Analysis: Radar data assimilation; improved cloud/precipitation process understanding; use of profiler, lidar, and satellite borne-radar data; ensemble prediction and validation; numerical parameterization/representation; placement/scan strategies for supplemental radars; data quality control; objective analysis.
Community-Driven Topics:
Advancement of Weather Radar Technologies in Developing and Emerging Countries: This session aims to visualize the work that has been conducted to advance the radar field in developing and emerging countries where weather radars are either already installed, or plan to be installed. Work from South and Central America, the Caribbean, Africa, and Asia is encouraged, but also any other location where radars have started to be used is also welcome.
Open Radar Science: Toolkits, Applications, Data, Education and Outreach, Capacity Building, and Best Practices: Open Radar Science (https://openradarscience.org/) is a community platform for free and open-source weather radar software. Topics include tool kits, applications, open radar data sets, education and outreach, capacity building, and best practices.
Radar Meteorology Education: Teaching innovations; scholarship of teaching and learning (SoTL) studies; active learning demonstrations; teaching strategies for classical and novel radar architectures; educational deployments of radar technology; computing and software infrastructure (particularly open-source); radar meteorology course materials.
Weather Radar Applications for Wildfires: This topic includes studies of radar signatures of wildfire ash plumes, the application of weather radar to understand wildfire dynamics, detect wind change and pyro-convection, testing fire models and nowcasting wildfire properties.
Submissions from current students and early career scientists are strongly encouraged, and selections for both oral and poster presentations will include a broad range of career stages. Monetary awards will be given for the best oral and poster presentations by student presenters at 41RADAR, including the Spiros G. Geotis Prize for the best overall student presentation. Registrants should indicate their eligibility for student awards when submitting their abstracts. More information on funding opportunities for student participation will be made available soon in a separate announcement. Special sessions and events are being planned with a focus on student and early career involvement within the field of radar meteorology.
Please submit your abstract electronically online by the deadline date of 3 April 2025. An abstract fee of $120 (payable by credit card or purchase order) is required at the time of submission. Please note that some abstracts may not be accepted, depending on program constraints, relevance, and merit of subject matter. In such cases the abstract fee will be refunded. Authors may indicate their preference for an oral or poster presentation during abstract submission; those authors presenting more than one paper should clearly indicate which they prefer for a possible oral presentation. Oral presentation slots are limited; thus, authors may request only one oral submission, but are welcome to present multiple posters. Authors of accepted presentations will be notified via email by late May 2025. Authors may submit an extended abstract (at no extra cost) electronically prior to the start of the conference and extended abstracts will also be accepted through electronic submission through 23 September 2025. Instructions for formatting extended abstracts (PDF format, up to 10 MB in size) will be posted on the AMS web site. All abstracts, extended abstracts, and presentations will be available on the AMS web site at no additional cost.
For additional information please contact either of the program chairs: Daniel Michelson, [email protected], Environment and Climate Change Canada, 4905 Dufferin Street, Toronto, ON, M3H 5T4, Canada; or David Sills, [email protected], Director, Northern Tornadoes Project, Canadian Severe Storms Laboratory, Department of Civil and Environmental Engineering, Western University – London, ON, Canada N6A 5B9; or Julian C. Brimelow, [email protected], Director, Northern Hail Project, Canadian Severe Storms Laboratory, Department of Civil and Environmental Engineering, Western University – London, ON, Canada N6A 5B9.