AOSC Seminar by Dr. Veljko Petković, 9/5/2024
AOSC Seminar
Veljko Petković
ESSIC
Title
Emulating Passive Microwave Satellite Products: Information Content and Uncertainties
Abstract
The ability to continuously monitor Earth systems is critical to understanding and predicting our weather and climate. To achieve this goal over land, we confidently rely on ground-based observations. Over oceans, however, measurements are rarely possible without using satellite sensors. More than half a century into their development, satellite instrumentation and retrievals offer indispensable products to modern meteorology and research. Yet, user and science communities still lack desired information on the atmosphere and its underlying processes. This talk will explore the possibility of using the existing broadly available spatiotemporally “continuous” satellite products, such as geostationary InfraRed (IR) radiances, to replicate the information typically offered by sparse low-earth-orbit passive microwave sensor observations. Using nothing but the GOES-R series Advanced Baseline Imager (ABI) IR bands on input, we predict (emulate) otherwise unavailable PMW brightness temperatures at frequencies and accuracy suitable for operational use in precipitationrelated applications. A machine learning approach for delivering quantitative traceable uncertainty estimates will be discussed.
Bio
After receiving his PhD. in Atmospheric Science from Colorado State University in 2017, Veljko Petković joined the Earth System Science Interdisciplinary Center at University of Maryland, College Park. As a Assoc. Res. Sci., Dr. Petković leads a small group that studies application of satellite remote sensing in Hydrometeorology. The group actively explores development, implementation, and validation of passive microwave satellite retrievals, data fusion, understanding of uncertainty sources, and maximizing the utilization of remote sensing information content in precipitation-related applications.
Contact
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AOSC Seminar
Pre-seminar refreshment: N/A
Seminar: 3:30-4:30pm, Room: ATL 2400(only when in-person)
Meet-the-Speaker: 4:30-5:00pm, Room: ATL 3400(only when in-person) [For AOSC Students only]
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