[All] FW: REMINDER: Earth Science Division Seminar: Today - Thurs, March 4th at 2pm - Advances in observing the wildfire environment: role of fire-atmosphere interactions on fire spread

Thu Mar 4 09:22:59 PST 2021

This is one of the SGG science seminars I thought a few of you might find interesting.
M

From: SGG-cs <sgg-cs-bounces at lists.nasa.gov> on behalf of "Nguyen, Helen C. (ARC-SGG)[Bay Area Environmental Research Institute] via SG-ALL via SG-cs via SGG-cs" <sgg-cs at lists.nasa.gov>
Reply-To: "Nguyen, Helen C. (ARC-SGG)[Bay Area Environmental Research Institute]" <helen.c.nguyen at nasa.gov>
Date: Thursday, March 4, 2021 at 9:00 AM
To: "sg-all at lists.nasa.gov" <sg-all at lists.nasa.gov>, "Hesse, Michael (ARC-S)" <michael.hesse at nasa.gov>, "Dodson, K. Estelle (ARC-S)" <estelle.dodson at nasa.gov>, "Bridges, Desireemoi R. (ARC-S)[WYLE LABS]" <desireemoi.r.bridges at nasa.gov>, "Perlongo, Kassandra M. (ARC-SG)[Bay Area Environmental Research Institute]" <kassandra.m.perlongo at nasa.gov>
Cc: "Nguyen, Helen C. (ARC-SGG)[Bay Area Environmental Research Institute] via SG-ALL via SG-cs" <sg-cs at lists.nasa.gov>, "Nguyen, Helen C. (ARC-SGG)[Bay Area Environmental Research Institute] via SG-ALL" <sg-all at lists.nasa.gov>
Subject: REMINDER: Earth Science Division Seminar: Today - Thurs, March 4th at 2pm - Advances in observing the wildfire environment: role of fire-atmosphere interactions on fire spread

NASA Ames Earth Science Division Seminar
Thursday, March 4th, 2PM PST
Virtual Seminar (WebEx info below)

Craig B. Clements
Wildfire Interdisciplinary Research Center
Department of Meteorology and Climate Science
San José State University

Advances in observing the wildfire environment: role of fire-atmosphere interactions on fire spread

Abstract:
Extreme fire behavior has been observed frequently during recent wildfires in the Western US, yet there is still limited understanding of the role of plume dynamics on fire spread.  The Rapid Deployments to Wildfires Experiment (RaDFIRE) was the first coordinated meteorological field campaign dedicated to observing fire-atmosphere interactions during large active wildfires to better understand extreme fire behavior. Using a rapidly deployable scanning Doppler lidar, airborne Doppler radar, and a suite of other instruments, the field campaign sampled 26 wildfires from 2013-2018 in California and Idaho. Access to wildfires was accomplished via team members training as wildland firefighters and through integration with wildland fire management agencies. Observations during RaDFIRE include convective plume entrainment processes and aircraft in-situ observations of a developing pyrocumulus with extreme updraft cores of 58 m s-1. A new mobile Ka-Band cloud radar has been deployed to four major wildland fires in 2019-20. These observations provide the highest resolution dual-pol measurements to date and will provide insight into the ash and debris associated with high-reflectivity cores within the plumes. While observations of active wildfires have shed light on processes associated with fire-atmosphere interactions, data collected from a small-scale and comprehensive field experiment (FireFlux2) provide context on the local processes responsible for fire spread that are difficult to observe when sampling large wildfires. These processes include the development of a region of surface low pressure that increases the fire-induced wind into the rear of the fire front causing acceleration of fire spread. Collectively, the RaDFIRE field campaign and FireFlux2 observations highlight the range of phenomena associated with fire-atmosphere interactions, especially plume dynamics, and will provide a valuable data set for the fire behavior modeling communities.

 Bio:
[../craig-photos/craig-clements-BW.jpg]

Dr. Craig Clements is a Professor of Meteorology at San José State University and Director of the Wildfire Interdisciplinary Research Center. He leads research on fire weather, extreme fire behavior, fire-atmosphere interactions, and conducting wildland fire field experiments. Dr. Clements has over 20 years of experience in meteorological field observations and teaches courses in Fire Weather, Wildfire Science, Mountain Meteorology, Climate Change, and Meteorological Instrumentation. He received his PhD in Geophysics from the University of Houston, his MS in Meteorology from the University of Utah, and a BS degree in Geography from the University of Nevada, Reno. In 2012, Dr. Clements received the National Science Foundation’s CAREER Award for his research on wildfire dynamics and fire weather. His current research focuses on obtaining meteorological measurements using state-of-the-art Mobile Atmospheric Profiling Systems such as Doppler Lidar and Radar at active wildfires in the western US and his research has been featured in PBS NOVA, Rolling Stone, The New York Times, Time, CNN, and Scientific American.

For questions and concerns, please contact Helen Nguyen (helen.c.nguyen at nasa.gov<mailto:helen.c.nguyen at nasa.gov>).

Earth Science Seminar Committee:
Charles Gatebe, Robert Chatfield, Jennifer Dungan, Matthew Johnson, Helen Nguyen, Kristina Pistone & Cindy Schmidt

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Thank You,

Helen Nguyen
Research Support Specialist
(650) 604-5489
Helen.c.nguyen at nasa.gov<mailto:Helen.c.nguyen at nasa.gov>

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