Search Results - "Posselt, Derek J."

Record-setting algal bloom in Lake Erie caused by agricultural and meteorological trends consistent with expected future conditions by Michalak, Anna M., Anderson, Eric J., Beletsky, Dmitry, Boland, Steven, Bosch, Nathan S., Bridgeman, Thomas B., Chaffin, Justin D., Cho, Kyunghwa, Confesor, Rem, Daloğlu, Irem, DePinto, Joseph V., Evans, Mary Anne, Fahnenstiel, Gary L., He, Lingli, Ho, Jeff C., Jenkins, Liza, Johengen, Thomas H., Kuo, Kevin C., LaPorte, Elizabeth, Liu, Xiaojian, McWilliams, Michael R., Moore, Michael R., Posselt, Derek J., Richards, R. Peter, Scavia, Donald, Steiner, Allison L., Verhamme, Ed, Wright, David M., Zagorski, Melissa A.

“…In 2011, Lake Erie experienced the largest harmful algal bloom in its recorded history, with a peak intensity over three times greater than any previously…”
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Confronting the Challenge of Modeling Cloud and Precipitation Microphysics by Morrison, Hugh, Lier‐Walqui, Marcus, Fridlind, Ann M., Grabowski, Wojciech W., Harrington, Jerry Y., Hoose, Corinna, Korolev, Alexei, Kumjian, Matthew R., Milbrandt, Jason A., Pawlowska, Hanna, Posselt, Derek J., Prat, Olivier P., Reimel, Karly J., Shima, Shin‐Ichiro, Diedenhoven, Bastiaan, Xue, Lulin

“…In the atmosphere, microphysics refers to the microscale processes that affect cloud and precipitation particles and is a key linkage among the various…”
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NEW OCEAN WINDS SATELLITE MISSION TO PROBE HURRICANES AND TROPICAL CONVECTION by Ruf, Christopher S., Atlas, Robert, Chang, Paul S., Clarizia, Maria Paola, Garrison, James L., Gleason, Scott, Katzberg, Stephen J., Jelenak, Zorana, Johnson, Joel T., Majumdar, Sharanya J., O’brien, Andrew, Posselt, Derek J., Ridley, Aaron J., Rose, Randall J., Zavorotny, Valery U.

“…The Cyclone Global Navigation Satellite System (CYGNSS) is a new NASA earth science mission scheduled to be launched in 2016 that focuses on tropical cyclones…”
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Using global Bayesian optimization in ensemble data assimilation: parameter estimation, tuning localization and inflation, or all of the above by Lunderman, Spencer, Morzfeld, Matthias, Posselt, Derek J.

“…Global Bayesian optimization (GBO) is a derivative-free optimization method that is used widely in the tech-industry to optimize objective functions that are…”
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CYGNSS Surface Heat Flux Product Development by Crespo, Juan, Posselt, Derek, Asharaf, Shakeel

“…Ocean surface heat fluxes play a significant role in the genesis and evolution of various marine-based atmospheric phenomena, from the synoptic scale down to…”
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MCMC-Based Assessment of the Error Characteristics of a Surface-Based Combined Radar–Passive Microwave Cloud Property Retrieval by Posselt, Derek J., Mace, Gerald G.

“…Collocated active and passive remote sensing measurements collected at U.S. Department of Energy Atmospheric Radiation Measurement Program sites enable…”
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A Distributed Small Satellite Approach for Measuring Convective Transports in the Earth's Atmosphere by Stephens, Graeme L., Peral, Eva, van den Heever, Susan C., Haddad, Ziad S., Posselt, Derek J., Storer, Rachel L., Grant, Leah D., Sy, Ousmane O., Rao, T. Narayana, Tanelli, Simone

“…The recent successful space-borne demonstration of a miniaturized CubeSat precipitation radar is highlighted. The low cost of such a radar, together with the…”
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Ground-Based High Spectral Resolution Lidar Observation of Aerosol Vertical Distribution in the Summertime Southeast United States by Reid, Jeffrey S., Kuehen, Ralph E., Holz, Robert E., Eloranta, Edwin W., Kaku, Kathleen C., Kuang, Shi, Newchurch, Michael J., Thompson, Anne M., Trepte, Charles R., Zhang, Jianglong, Atwood, Samuel A., Hand, Jenny L., Holben, Brent N., Minnis, Patrick, Posselt, Derek J.

“…As part of the Southeast United States-based Studies of Emissions and Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys (SEAC4RS), and…”
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Quantitative Sensitivity Analysis of Physical Parameterizations for Cases of Deep Convection in the NASA GEOS-5 by Posselt, Derek J., Fryxell, Bruce, Molod, Andrea, Williams, Brian

“…Parameterization of processes that occur on length scales too small to resolve on a computational grid is a major source of uncertainty in global climate…”
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Bayesian Retrievals of Vertically Resolved Cloud Particle Size Distribution Properties by Posselt, Derek J., Kessler, James, Mace, Gerald G.

“…Retrievals of liquid cloud properties from remote sensing observations by necessity assume sufficient information is contained in the measurements, and in the…”
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Aerosol Optical Depth Distribution in Extratropical Cyclones over the Northern Hemisphere Oceans by Naud, Catherine M., Posselt, Derek J., van den Heever, Susan C.

“…Using Moderate Resolution Imaging Spectroradiometer and an extratropical cyclone database,the climatological distribution of aerosol optical depth (AOD) in…”
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Changes in the Interaction between Tropical Convection, Radiation, and the Large-Scale Circulation in a Warming Environment by Posselt, Derek J., van den Heever, Susan, Stephens, Graeme, Igel, Matthew R.

“…This paper explores the response of the tropical hydrologic cycle to surface warming through the lens of large-domain cloud-system-resolving model experiments…”
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Aerosol Meteorology of the Maritime Continent for the 2012 7SEAS Southwest Monsoon Intensive Study - Part 1: Regional-scale Phenomena by Reid, Jeffrey S., Xian, Peng, Holben, Brent N., Hyer, Edward J., Reid, Elizabeth A., Salinas, Santo V., Zhang, Jianglong, Campbell, James R., Chew, Boon Ning, Holz, Robert E., Kuciauskas, Arunas P., Lagrosas, Nofel, Posselt, Derek J., Sampson, Charles R., Walker, Annette L., Welton, E. Judd, Zhang, Chidong

“…The largest 7 Southeast Asian Studies (7SEAS) operation period within the Maritime Continent (MC) occurred in the August-September 2012 biomass burning season…”
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Observed Covariations of Aerosol Optical Depth and Cloud Cover in Extratropical Cyclones by Naud, Catherine M., Posselt, Derek J., Heever, Susan C.

“…Using NASA Moderate Resolution Imaging Spectroradiometer aerosol optical depth and total cloud cover retrievals, CloudSat‐CALIPSO cloud profiles, and a…”
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Impact of Rain on Retrieved Warm Cloud Properties Using Visible and Near-Infrared Reflectances Using Markov Chain Monte Carlo Techniques by Xu, Zhuocan, Mace, Gerald G., Posselt, Derek J.

“…Estimates of cloud droplet effective radius (<inline-formula> <tex-math notation="LaTeX">r_{\mathrm {e}} </tex-math></inline-formula>) and optical thickness…”
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An examination of extratropical cyclone response to changes in baroclinicity and temperature in an idealized environment by Tierney, Gregory, Posselt, Derek J., Booth, James F.

“…The dynamics and precipitation in extratropical cyclones (ETCs) are known to be sensitive to changes in the cyclone environment, with increases in bulk water…”
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Assessing Synergistic Radar and Radiometer Retrievals of Ice Cloud Microphysics for the Atmosphere Observing System (AOS) Architecture by Liu, Yuli, Mace, Gerald G., Posselt, Derek J.

“…After exploring numerous observing system designs, the NASA aerosols, clouds, convection, and precipitation (ACCP) study team arrived at the top candidate…”
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Impact of Parameterized Physical Processes on Simulated Tropical Cyclone Characteristics in the Community Atmosphere Model by He, Fei, Posselt, Derek J.

“…This study advances the understanding of how parameterized physical processes affect the development of tropical cyclones (TCs) in the Community Atmosphere…”
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A CloudSat–CALIPSO view of cloud and precipitation in the occluded quadrants of extratropical cyclones by Naud, Catherine M., Ghosh, Poushali, Martin, Jonathan E., Elsaesser, Gregory S., Posselt, Derek J.

“…Using 10 years of satellite‐borne radar and lidar observations coupled with a novel method for automated occlusion identification, composite transects of cloud…”
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On the Relationship between CYGNSS Surface Heat Fluxes and the Life Cycle of Low-Latitude Ocean Extratropical Cyclones by Naud, Catherine M., Crespo, Juan A., Posselt, Derek J.

“…Surface latent and sensible heat fluxes are important for extratropical cyclone evolution and intensification. Because extratropical cyclone genesis often…”
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