Search Results - "Bedka, Kristopher M."

In situ and space‐based observations of the Kelud volcanic plume: The persistence of ash in the lower stratosphere by Vernier, Jean‐Paul, Fairlie, T. Duncan, Deshler, Terry, Natarajan, Murali, Knepp, Travis, Foster, Katie, Wienhold, Frank G., Bedka, Kristopher M., Thomason, Larry, Trepte, Charles

“…Volcanic eruptions are important causes of natural variability in the climate system at all time scales. Assessments of the climate impact of volcanic…”
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Extreme Altitudes of Stratospheric Hydration by Midlatitude Convection Observed During the DCOTSS Field Campaign by Homeyer, Cameron R., Smith, Jessica B., Bedka, Kristopher M., Bowman, Kenneth P., Wilmouth, David M., Ueyama, Rei, Dean‐Day, Jonathan M., St. Clair, Jason M., Hannun, Reem, Hare, Jennifer, Pandey, Apoorva, Sayres, David S., Hanisco, Thomas F., Gordon, Andrea E., Tinney, Emily N.

“…Water vapor's contribution to Earth's radiative forcing is most sensitive to changes in its lower stratosphere concentration. One recognized pathway for rapid…”
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Identifying the Uncertainty in Determining Satellite-Derived Atmospheric Motion Vector Height Attribution by Velden, Christopher S., Bedka, Kristopher M.

“…This study investigates the assignment of pressure heights to satellite-derived atmospheric motion vectors (AMVs), commonly known as cloud-drift and water…”
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Validation of Satellite-Based Objective Overshooting Cloud-Top Detection Methods Using CloudSat Cloud Profiling Radar Observations by BEDKA, Kristopher M, DWORAK, Richard, BRUNNER, Jason, FELTZ, Wayne

“…Abstract Two satellite infrared-based overshooting convective cloud-top (OT) detection methods have recently been described in the literature: 1) the 11- μ m…”
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Nowcasting Convective Storm Initiation Using Satellite-Based Box-Averaged Cloud-Top Cooling and Cloud-Type Trends by Sieglaff, Justin M., Cronce, Lee M., Feltz, Wayne F., Bedka, Kristopher M., Pavolonis, Michael J., Heidinger, Andrew K.

“…Short-term (0–1 h) convective storm nowcasting remains a problem for operational weather forecasting, and convective storms pose a significant monetary sink…”
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Convective cloud identification and classification in daytime satellite imagery using standard deviation limited adaptive clustering by Berendes, Todd A., Mecikalski, John R., MacKenzie Jr, Wayne M., Bedka, Kristopher M., Nair, U. S.

“…This paper describes a statistical clustering approach toward the classification of cloud types within meteorological satellite imagery, specifically, visible…”
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A Probabilistic Multispectral Pattern Recognition Method for Detection of Overshooting Cloud Tops Using Passive Satellite Imager Observations by Bedka, Kristopher M., Khlopenkov, Konstantin

“…Deep convective updrafts often penetrate through the surrounding cirrus anvil and into the lower stratosphere. Cross-tropopause transport of ice, water vapor,…”
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Overshooting cloud top detections using MSG SEVIRI Infrared brightness temperatures and their relationship to severe weather over Europe by Bedka, Kristopher M.

“…This purposes of this paper are to: 1) demonstrate an objective overshooting top (OT) detection method using Meteosat Second Generation (MSG) Spinning Enhanced…”
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Comparisons of Satellite-Derived Atmospheric Motion Vectors, Rawinsondes, and NOAA Wind Profiler Observations by Bedka, Kristopher M., Velden, Christopher S., Petersen, Ralph A., Feltz, Wayne F., Mecikalski, John R.

“…Geostationary satellite-derived atmospheric motion vectors (AMVs) have been used over several decades in a wide variety of meteorological applications. The…”
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A Long-Term Overshooting Convective Cloud-Top Detection Database over Australia Derived from MTSAT Japanese Advanced Meteorological Imager Observations by Bedka, Kristopher M., Allen, John T., Punge, Heinz Jurgen, Kunz, Michael, Simanovic, Denis

“…A 10-yr geostationary (GEO) overshooting cloud-top (OT) detection database using Multifunction Transport Satellite (MTSAT) Japanese Advanced Meteorological…”
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Global Cloud Detection for CERES Edition 4 Using Terra and Aqua MODIS Data by Trepte, Qing Z., Bedka, Kristopher M., Chee, Thad L., Minnis, Patrick, Sun-Mack, Szedung, Yost, Christopher R., Chen, Yan, Jin, Zhonghai, Hong, Gang, Chang, Fu-Lung, Smith, William L.

“…The Clouds and Earth's Radiant Energy System (CERES) has been monitoring clouds and radiation since 2000 using algorithms developed before 2002 for CERES…”
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Evaluating the Ability of Remote Sensing Observations to Identify Significantly Severe and Potentially Tornadic Storms by Sandmæl, Thea N., Homeyer, Cameron R., Bedka, Kristopher M., Apke, Jason M., Mecikalski, John R., Khlopenkov, Konstantin

“…Remote sensing observations, especially those from ground-based radars, have been used extensively to discriminate between severe and nonsevere storms. Recent…”
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Fragmentation increases wind disturbance impacts on forest structure and carbon stocks in a western Amazonian landscape by Schwartz, Naomi B., Uriarte, María, DeFries, Ruth, Bedka, Kristopher M., Fernandes, Katia, Gutiérrez-Vélez, Victor, Pinedo-Vasquez, Miguel A.

“…Tropical second-growth forests could help mitigate climate change, but the degree to which their carbon potential is achieved will depend on exposure to…”
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Distribution of cross-tropopause convection within the Asian monsoon region from May through October 2017 by Clapp, Corey E, Smith, Jessica B, Bedka, Kristopher M, Anderson, James G

“…We constructed a database of cross-tropopause convection in the Asian monsoon region for the months of May through October of 2017 using overshooting tops…”
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A Method for Calculating the Height of Overshooting Convective Cloud Tops Using Satellite-Based IR Imager and CloudSat Cloud Profiling Radar Observations by Griffin, Sarah M., Bedka, Kristopher M., Velden, Christopher S.

“…Assigning accurate heights to convective cloud tops that penetrate into the upper troposphere–lower stratosphere (UTLS) region using infrared (IR) satellite…”
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Characterizing hail-prone environments using convection-permitting reanalysis and overshooting top detections over south-central Europe by Giordani, Antonio, Kunz, Michael, Bedka, Kristopher M, Punge, Heinz Jürgen, Paccagnella, Tiziana, Pavan, Valentina, Cerenzia, Ines M. L, Di Sabatino, Silvana

“…The challenges associated with reliably observing and simulating hazardous hailstorms call for new approaches that combine information from different available…”
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Characteristics of hail hazard in South Africa based on satellite detection of convective storms by Punge, Heinz Jürgen, Bedka, Kristopher M, Kunz, Michael, Bang, Sarah D, Itterly, Kyle F

“…Accurate estimates of hail risk to exposed assets, such as crops, infrastructure, and vehicles, are required for both insurance pricing and preventive…”
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Airborne lidar observations of wind, water vapor, and aerosol profiles during the NASA Aeolus calibration and validation (Cal/Val) test flight campaign by Bedka, Kristopher M, Nehrir, Amin R, Kavaya, Michael, Barton-Grimley, Rory, Beaubien, Mark, Carroll, Brian, Collins, James, Cooney, John, Emmitt, G. David, Greco, Steven, Kooi, Susan, Lee, Tsengdar, Liu, Zhaoyan, Rodier, Sharon, Skofronick-Jackson, Gail

“…Lidars are uniquely capable of collecting high-precision and high spatiotemporal resolution observations that have been used for atmospheric process studies…”
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Severe thunderstorms with large hail across Germany in June 2019 by Wilhelm, Jannik, Mohr, Susanna, Punge, Heinz Jürgen, Mühr, Bernhard, Schmidberger, Manuel, Daniell, James E., Bedka, Kristopher M., Kunz, Michael

“…From 10 to 12 June 2019, severe thunderstorms affected large parts of Germany. Hail larger than golf ball size caused considerable damage, especially in the…”
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Enhanced stratospheric water vapor over the summertime continental United States and the role of overshooting convection by Herman, Robert L, Ray, Eric A, Rosenlof, Karen H, Bedka, Kristopher M, Schwartz, Michael J, Read, William G, Troy, Robert F, Chin, Keith, Christensen, Lance E, Fu, Dejian, Stachnik, Robert A, Bui, T. Paul, Dean-Day, Jonathan M

“…The NASA ER-2 aircraft sampled the lower stratosphere over North America during the field mission for the NASA Studies of Emissions and Atmospheric…”
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