Search Results - "Nair, Udaysankar"

Quantifying O3 Impacts in Urban Areas Due to Wildfires Using a Generalized Additive Model by Gong, Xi, Kaulfus, Aaron, Nair, Udaysankar, Jaffe, Daniel A

“…Wildfires emit O3 precursors but there are large variations in emissions, plume heights, and photochemical processing. These factors make it challenging to…”
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Detection of transverse cirrus bands in satellite imagery using deep learning by Miller, Jeffrey, Nair, Udaysankar, Ramachandran, Rahul, Maskey, Manil

“…We demonstrate the viability of using a convolutional neural network (CNN) for facial recognition of meteorological phenomena in satellite imagery. Transfer…”
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Land use/land cover changes and climate: modeling analysis and observational evidence by Pielke Sr, Roger A., Pitman, Andy, Niyogi, Dev, Mahmood, Rezaul, McAlpine, Clive, Hossain, Faisal, Goldewijk, Kees Klein, Nair, Udaysankar, Betts, Richard, Fall, Souleymane, Reichstein, Markus, Kabat, Pavel, de Noblet, Nathalie

“…This article summarizes the changes in landscape structure because of human land management over the last several centuries, and using observed and modeled…”
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Influence of Land Cover and Soil Moisture based Brown Ocean Effect on an Extreme Rainfall Event from a Louisiana Gulf Coast Tropical System by Nair, Udaysankar S, Rappin, Eric, Foshee, Emily, Smith, Warren, Sr, Roger A Pielke, Mahmood, Rezaul, Case, Jonathan L, Blankenship, Clay B, Shepherd, Marshall, Santanello, Joseph A, Niyogi, Dev

“…Extreme flooding over southern Louisiana in mid-August of 2016 resulted from an unusual tropical low that formed and intensified over land. We used numerical…”
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Thunderstorms Increase Mercury Wet Deposition by Holmes, Christopher D, Krishnamurthy, Nishanth P, Caffrey, Jane M, Landing, William M, Edgerton, Eric S, Knapp, Kenneth R, Nair, Udaysankar S

“…Mercury (Hg) wet deposition, transfer from the atmosphere to Earth’s surface by precipitation, in the United States is highest in locations and seasons with…”
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Impacts of land use-land cover change on climate and future research priorities by Mahmood, Rezaul, Pielke, Roger A. Sr, Hubbard, Kenneth G, Niyogi, Dev, Bonan, Gordon, Lawrence, Peter, McNider, Richard, McAlpine, Clive, Etter, Andres, Gameda, Samuel, Qian, Budong, Carleton, Andrew, Beltran-Przekurat, Adriana, Chase, Thomas, Quintanar, Arturo I, Adegoke, Jimmy O, Vezhapparambu, Sajith, Conner, Glen, Asefi, Salvi, Sertel, Elif, Legates, David R, Wu, Yuling, Hale, Robert, Frauenfeld, Oliver W, Watts, Anthony, Shepherd, Marshall, Mitra, Chandana, Anantharaj, Valentine G, Fall, Souleymane, Lund, Robert, Trevino, Anna, Blanken, Peter, Du, Jinyang

“…[...] we also need strategies that will help us to detect and overcome these biases and thus lead to an improved understanding of the role of land use forcing…”
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Synergy of Urban Heat, Pollution, and Social Vulnerability in One of America's Most Rapidly Growing Cities: Houston, We Have a Problem by Blackford, Andrew, Cowan, Trent, Nair, Udaysankar, Phillips, Christopher, Kaulfus, Aaron, Freitag, Brian

“…During the first two decades of the twenty‐first century, we analyze the expansion of urban land cover, urban heat island (UHI), and urban pollution island…”
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Diurnal and seasonal variation of mercury species at coastal-suburban, urban, and rural sites in the southeastern United States by Nair, Udaysankar S., Wu, Yuling, Walters, Justin, Jansen, John, Edgerton, Eric S.

“…Observations for the 2005–2008 time period from three Southeastern Aerosol Research and Characterization (SEARCH) air quality monitoring sites are examined for…”
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The role of land use change on the development and evolution of the west coast trough, convective clouds, and precipitation in southwest Australia by Nair, Udaysankar S., Wu, Y., Kala, J., Lyons, T. J., Pielke Sr, R. A., Hacker, J. M.

“…Land clearing for agricultural purposes in southwest Australia has created a landscape where a 750 km rabbit‐proof fence separates 13 million hectares of…”
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Impact of land use on Costa Rican tropical montane cloud forests: Sensitivity of orographic cloud formation to deforestation in the plains by Ray, Deepak K., Nair, Udaysankar S., Lawton, Robert O., Welch, Ronald M., Pielke Sr, Roger A.

“…The current study provides new insights into the coupling of land use in lowland and premontane regions (i.e., regions below 1000 m) and orographic cloud…”
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Sensitivity of nocturnal boundary layer temperature to tropospheric aerosol surface radiative forcing under clear-sky conditions by Nair, Udaysankar S., McNider, Richard, Patadia, Falguni, Christopher, Sundar A., Fuller, Kirk

“…Since the middle of the last century, global surface air temperature exhibits an increasing trend, with nocturnal temperatures increasing at a much higher…”
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Large-eddy simulations of surface influences on planetary boundary layer development in southwest Western Australia by Kala, Jatin, Lyons, Tom J., Nair, Udaysankar S., Wu, Yuling

“…Observations from near‐simultaneous atmospheric soundings released over contrasting land surfaces in the southwest of Western Australia during December 2005…”
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Roles of atmospheric and land surface data in dynamic regional downscaling by Ray, Deepak K., Pielke Sr, Roger A., Nair, Udaysankar S., Niyogi, Dev

“…In studies dealing with the impact of land use changes on atmospheric processes, a key methodological step is the validation of simulated current conditions…”
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Observational estimates of radiative forcing due to land use change in southwest Australia by Nair, Udaysankar S., Ray, Deepak K., Wang, Jun, Christopher, Sundar A., Lyons, Tom J., Welch, Ronald M., Pielke Sr, R. A.

“…Radiative forcing associated with land use change is largely derived from global circulation models (GCM), and the accuracy of these estimates depends on the…”
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Comparison of satellite‐derived TOA shortwave clear‐sky fluxes to estimates from GCM simulations constrained by satellite observations of land surface characteristics by Anantharaj, Valentine G., Nair, Udaysankar S., Lawrence, Peter, Chase, Thomas N., Christopher, Sundar, Jones, Thomas

“…Clear‐sky, upwelling shortwave flux at the top of the atmosphere $\left(S_{\rm {TOA}}^{\uparrow}\right)$, simulated using the atmospheric and land model…”
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Importance of land use versus atmospheric information verified from cloud simulations from a frontier region in Costa Rica by Ray, Deepak K., Pielke Sr, Roger A., Nair, Udaysankar S., Welch, Ronald M., Lawton, Robert O.

“…Land‐use/land‐cover (LULC) change has been recognized as a key component in global climate change, and numerous climate modeling studies at regional to global…”
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Validation of a Simple Steady-State Forecast of Minimum Nocturnal Temperatures by Kala, Jatin, Lyons, Tom J., Foster, Ian J., Nair, Udaysankar S.

“…A two-layer steady-state resistance model is compared with routine meteorological data collected from the Western Australian wheat belt during 2000–06. Major…”
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Biogeography of Tropical Montane Cloud Forests. Part II: Mapping of Orographic Cloud Immersion by Nair, Udaysankar S., Asefi, Salvi, Welch, Ronald M., Ray, D. K., Lawton, Robert O., Manoharan, Vani Starry, Mulligan, Mark, Sever, Tom L., Irwin, Daniel, Pounds, J. Alan

“…This study details two unique methods to quantify cloud-immersion statistics for tropical montane cloud forests (TMCFs). The first technique uses a new…”
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Dry season clouds and rainfall in northern Central America: Implications for the Mesoamerican Biological Corridor by Ray, Deepak K., Welch, Ronald M., Lawton, Robert O., Nair, Udaysankar S.

“…The proposed Mesoamerican Biological Corridor (MBC) is an ambitious effort to stem the erosion of biodiversity in one of the world's biologically richest…”
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Impact of Land Surface Heterogeneity on Mesoscale Atmospheric Dispersion by Wu, Yuling, Nair, Udaysankar S, Pielke, Roger A. Sr, McNider, Richard T, Christopher, Sundar A, Anantharaj, Valentine G

“…Prior numerical modelling studies show that atmospheric dispersion is sensitive to surface heterogeneities, but past studies do not consider the impact of a…”
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