Search Results - "Kotsakis, Alexander"

Observing Severe Drought Influences on Ozone Air Pollution in California by Demetillo, Mary Angelique G, Anderson, Jaime F, Geddes, Jeffrey A, Yang, Xi, Najacht, Emily Y, Herrera, Solianna A, Kabasares, Kyle M, Kotsakis, Alexander E, Lerdau, Manuel T, Pusede, Sally E

“…Drought conditions affect ozone air quality, potentially altering multiple terms in the O3 mass balance equation. Here, we present a multiyear observational…”
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Traffic, transport, and vegetation drive VOC concentrations in a major urban area in Texas by Shrestha, Sujan, Yoon, Subin, Erickson, Matthew H., Guo, Fangzhou, Mehra, Manisha, Bui, Alexander A.T., Schulze, Benjamin C., Kotsakis, Alexander, Daube, Conner, Herndon, Scott C., Yacovitch, Tara I., Alvarez, Sergio, Flynn, James H., Griffin, Robert J., Cobb, George P., Usenko, Sascha, Sheesley, Rebecca J.

“…The population of Texas has increased rapidly in the past decade. The San Antonio Field Study (SAFS) was designed to investigate ozone (O3) production and…”
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Advancing Atmospheric Thermodynamic Sounding from Space using Hyperspectral Microwave Measurements by Gambacorta, Antonia, Piepmeier, Jeffrey, Stephen, Mark, Santanello, Joseph, Blaisdell, John, Moradi, Isaac, McCarty, William, Rosenberg, Robert, Kotsakis, Alexander, MacKinnon, James, Gambini, Fabrizio, Mohammed, Priscilla, Kroodsma, Rachael, Adams, Ian, Racette, Paul

“…We present a comprehensive sensitivity analysis and geophysical retrieval product demonstration to assess the enhanced information content in atmospheric…”
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Two Air Quality Regimes in Total Column NO2 over the Gulf of Mexico in May 2019: Shipboard and Satellite Views by Thompson, Anne M, Kollonige, Debra E, Stauffer, Ryan M, Kotsakis, Alexander E, Abuhassan, Nader, Lamsal, Lok N, Swap, Robert J, Blake, Donald R, Townsend-Small, Amy, Wecht, Holli D

“…The Satellite Coastal and Oceanic Atmospheric Pollution Experiment (SCOAPE) cruise in the Gulf of Mexico was conducted in May 2019 by NASA and the Bureau of…”
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The characterization of fine particulate matter downwind of Houston: Using integrated factor analysis to identify anthropogenic and natural sources by Sadeghi, Bavand, Choi, Yunsoo, Yoon, Subin, Flynn, James, Kotsakis, Alexander, Lee, Sojin

“…The interpretation of large air pollution datasets involves a great deal of complexity. To gain a better understanding of the complicated relationships and…”
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Characterization of Regional Wind Patterns Using Self-Organizing Maps: Impact on Dallas–Fort Worth Long-Term Ozone Trends by Kotsakis, Alexander, Choi, Yunsoo, Souri, Amir H., Jeon, Wonbae, Flynn, James

“…This study analyzes wind patterns in the Dallas–Fort Worth (DFW) area to gain a clearer understanding of meteorological patterns that have historically led to…”
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A 15-year climatology of wind pattern impacts on surface ozone in Houston, Texas by Souri, Amir Hossein, Choi, Yunsoo, Li, Xiangshang, Kotsakis, Alexander, Jiang, Xun

“…Houston is recognized for its large petrochemical industrial facilities providing abundant radicals for tropospheric ozone formation. Fortunately, maximum…”
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Ozone production by corona discharges during a convective event in DISCOVER-AQ Houston by Kotsakis, Alexander, Morris, Gary A., Lefer, Barry, Jeon, Wonbae, Roy, Anirban, Minschwaner, Ken, Thompson, Anne M., Choi, Yunsoo

“…An ozonesonde launched near electrically active convection in Houston, TX on 5 September 2013 during the NASA DISCOVER-AQ project measured a large enhancement…”
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Sensitivity of total column NO2 at a marine site within the Chesapeake Bay during OWLETS-2 by Kotsakis, Alexander, Sullivan, John T., Hanisco, Thomas F., Swap, Robert J., Caicedo, Vanessa, Berkoff, Timothy A., Gronoff, Guillaume, Loughner, Christopher P., Ren, Xinrong, Luke, Winston T., Kelley, Paul, Stratton, Phillip R., Delgado, Ruben, Abuhassan, Nader, Shalaby, Lena, Santos, Fernando C., Dreessen, Joel

“…In coastal environments like the Chesapeake Bay, the presence of the sea/bay breeze circulation can contribute to poor air quality and makes modeling the…”
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On the effect of upwind emission controls on ozone in Sequoia National Park by Buysse, Claire E, Munyan, Jessica A, Bailey, Clara A, Kotsakis, Alexander, Sagona, Jessica A, Esperanza, Annie, Pusede, Sally E

“…Ozone (O3) air pollution in Sequoia National Park (SNP) is among the worst of any national park in the US. SNP is located on the western slope of the Sierra…”
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Development and testing of a novel sulfur dioxide sonde by Yoon, Subin, Kotsakis, Alexander, Alvarez, Sergio L, Spychala, Mark G, Klovenski, Elizabeth, Walter, Paul, Morris, Gary, Corrales, Ernesto, Alan, Alfredo, Diaz, Jorge A, Flynn, James H

“…A novel technique has been developed to measure sulfur dioxide (SO2) using a modification of the existing electrochemical concentration cell (ECC) ozonesonde…”
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Neighborhood-Level Nitrogen Dioxide Inequalities Contribute to Surface Ozone Variability in Houston, Texas by Dressel, Isabella M, Zhang, Sixuan, Demetillo, Mary Angelique G, Yu, Shan, Fields, Kimberly, Judd, Laura M, Nowlan, Caroline R, Sun, Kang, Kotsakis, Alexander, Turner, Alexander J, Pusede, Sally E

“…In Houston, Texas, nitrogen dioxide (NO ) air pollution disproportionately affects Black, Latinx, and Asian communities, and high ozone (O ) days are frequent…”
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Effect of polyoxymethylene (POM-H Delrin) off-gassing within the Pandora head sensor on direct-sun and multi-axis formaldehyde column measurements in 2016–2019 by Spinei, Elena, Tiefengraber, Martin, Müller, Moritz, Gebetsberger, Manuel, Cede, Alexander, Valin, Luke, Szykman, James, Whitehill, Andrew, Kotsakis, Alexander, Santos, Fernando, Abbuhasan, Nader, Zhao, Xiaoyi, Fioletov, Vitali, Lee, Sum Chi, Swap, Robert

“…Analysis of formaldehyde measurements by the Pandora spectrometer systems between 2016 and 2019 suggested that there was a temperature-dependent process inside…”
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Two Air Quality Regimes in Total Column NO 2 Over the Gulf of Mexico in May 2019: Shipboard and Satellite Views by Thompson, Anne M., Kollonige, Debra E., Stauffer, Ryan M., Kotsakis, Alexander E., Abuhassan, Nader, Lamsal, Lok N., Swap, Robert J., Blake, Donald R., Townsend‐Small, Amy, Wecht, Holli D.

“…Abstract The Satellite Coastal and Oceanic Atmospheric Pollution Experiment (SCOAPE) cruise in the Gulf of Mexico was conducted in May 2019 by NASA and the…”
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Investigating the Impacts of Meteorology and Long-Range Transport on Near Surface and Free Tropospheric Ozone over Texas by Kotsakis, Alexander Ernst

“…Ozone produced photochemically in the atmosphere is important from a regulatory and health standpoint. Efficient control technologies and strategies for ozone…”
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The West-Coast Hyperspectral Microwave Sensor Intensive Experiment (WHYMSIE) by Gambacorta, Antonia, Kotsakis, Alexander, Kroodsma, Rachael, Nowottnick, Ed, Serbin, Shawn, Nehrir, Amin, McLinden, Matt, MacKinnon, James, Zhou, Yaping, Shahroudi, Narges, Nicholls, Stephen, Rosenberg, Robert, Blaisdell, John, Swap, Robert

“…We present an overview of the 2024 West-Coast Hyperspectral Microwave Sensor Intensive Experiment (WHyMSIE). WHyMSIE is a joint NASA-NOAA multi-sensor airborne…”
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Hyperspectral Microwave Measurement Demonstrations of Improved Thermodynamic Sounding from Space by Kotsakis, Alexander, Gambacorta, Antonia, MacKinnon, James, Piepmeier, Jeffrey, Kroodsma, Rachael, Santanello, Joseph, Blumberg, Greg, Blaisdell, John, Moradi, Isaac, Adams, Ian

“…Characterizing the complex three-dimensional (3D) thermodynamic structure of the Planetary Boundary Layer (PBL) from a global perspective remains a challenge…”
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Deep Neural Networks For Evaluating Future Satellite-Based Hyperspectral Microwave Sensor Designs by MacKinnon, James, Gambacorta, Antonia, Piepmeier, Jeffrey, Stephen, Mark, Kroodsma, Rachael, Santanello, Joseph, Blumberg, Greg, Blaisdell, John, Moradi, Isaac, Gong, Jie, Kotsakis, Alexander, Adams, Ian

“…We have developed a process for evaluating future satellite-based hyperspectral microwave sensor designs using deep neural networks (DNN). Our approach…”
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Advancing Earth's Planetary Boundary Layer Sounding from Space Using Hyperspectral Microwave Measurements by Gambacorta, Antonia, Piepmeier, Jeffrey, Santanello, Joseph, Stephen, Mark, Moradi, Isaac, Kroodsma, Rachael, Blaisdell, John, Kotsakis, Alexander, Rosenberg, Robert, MacKinnon, James, Nowottnick, Edward, Kacenelenbogen, Meloe, Kenneth, Christian, Gong, Jie, Gambini, Fabrizio, Mohammed, Priscilla, Racette, Paul, Adams, Ian

“…We present a comprehensive Earth Planetary Boundary Layer temperature and water vapor retrieval improvement demonstration by the use of hyperspectral microwave…”
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