Quantitative Precipitation Estimates and Observations: How Good are they for Robust Hydrologic Modeling and Design?

Abstract:

Accurate measurements of precipitation that characterize its spatial and temporal variability in a region are quintessential for the success of hydrologic modeling and design. Point measurements (i.e., rain gage observations) often plagued with systematic and random errors while lacking spatial coverage are questionable inputs to hydrologic design procedures and inadequate for distributed hydrologic modeling applications. Multi-sensor source-based quantitative precipitation estimates (QPEs) developed as gridded datasets/products are increasingly being used by hydrological modeling and design communities. This talk will focus on QPEs developed using weather-surveillance radar (WSR) using rain gage information as ground truth and will address issues related to the generation of radar-based precipitation estimates, Improvements in QPEs, bias analysis, and correction methods. The utility and validity of these QPEs for hydrologic modeling, design, and hydrosystems management will be discussed.

Speaker's bio:

Ramesh Teegavarapu, Ph.D., P.E. (Dr. T.) is a professor in the civil, environmental, and geomatics engineering department, at Florida Atlantic University, USA. He is also the director of Hydrosystems Research Laboratory (HRL). He Is a Fulbright Scholar and Specialist and recipient of several national and international awards. He serves on the editorial board of multiple international peer-reviewed journals. His current research interests are climate variability and change, hydrometeorology, spatial precipitation analysis, hydroanalytics, water, and environmental systems modeling. Dr. T. has published over one hundred and fifty technical articles in high-impact journals and conference proceedings and authored over forty book chapters and is an author, co-editor, sole-editor of nine books from multiple reputed international publishers. He serves on multiple national and international technical committees related to water and climate change. Dr. T. has presented over one hundred and eighty research talks including several invited and plenary and keynote talks around the globe.