His research combines theoretical analysis, high-resolution numerical modelling, and large-scale international field experiments to investigate complex environmental flows across a wide range of spatial and temporal scales. As Principal Investigator of major campaigns including MATERHORN, PERDIGÃO, CASPER, ASIRI, MISO-BOB, IFFExO, C-FOG, and FATIMA, he has advanced understanding of microscale mountain winds, nocturnal boundary layers, monsoon variability, coastal fog, and atmospheric dispersion. His scientific contributions encompass more than 350 archival journal papers published across approximately sixty international journals, complemented by his editorship of the two-volume Handbook of Environmental Fluid Dynamics (CRC Press, 2013). With an h-index of 40 and more than 6,000 citations, his work has influenced both fundamental fluid mechanics and practical approaches to environmental prediction. The five selected publications below—covering complex-terrain flows in the PERDIGÃO experiment (Bulletin of the American Meteorological Society, 2019), turbulent mixing in colliding gravity currents (Journal of Fluid Mechanics, 2018), green and cool roofs for urban heat-island mitigation (Environmental Research Letters, 2016), internal waves and hydrodynamic instabilities in the Bay of Bengal (Journal of Geophysical Research: Oceans, 2016), and flow, turbulence, and dispersion in urban environments (Bulletin of the American Meteorological Society, 2015)—reflect a career dedicated to advancing environmental fluid dynamics while translating fundamental science into applications in wind energy, air quality, urban resilience, and climate adaptation.