From eoas-seminar at lists.fsu.edu Mon May 11 09:48:45 2020 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 11 May 2020 13:48:45 +0000 Subject: [Eoas-seminar] GFDI/Department of Scientific Computing Graduate Student Seminar on Thursday, May 21st at 11:00AM via zoom id#920-1944-9214 In-Reply-To: References: , , Message-ID: &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& & GFDI and Department of Scientific Computing Seminar & &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& TITLE: A method of fuel characterization for fire behavior models and the influence of fuel heterogeneity on fire spread. SPEAKER: Mr. Daniel Rosales Giron MS Graduate Candidate Department of Scientific Computing & GFD Fire Dynamics Program Major Professor: Dr. Kevin Spee MAJOR PROFESSOR: Dr. Kevin Speer DATE & TIME: Thursday, May 21, at 11 AM Zoom Meeting ID: https://fsu.zoom.us/j/92019449214 Zoom id# 920-1944-9214 &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& & DEFENSE FOLLOWS THE SEMINAR & &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& Abstract: High spatial variability has been observed in simple fuelbeds (Keane et al.2012, Hiers et al. 2009) which accentuates the need to describe the actual fuel arrangement and composition of fuels in a prescribed or wildfire operation setting as opposed to abstract representations, regardless of model application and domain size.Working with high resolution 3D datasets, I will apply TLS scan information of highly instrumented burn plots in Pebble Hill and Eglin Air Force Base to create voxelized data arrays containing bulk density and fuel height for surface fuels <1m on a horizontal resolution of 0.5 m2. This will be coupled with a common method to populate the environment with trees described in Linn et al. (2005), where fuel is assigned to voxels depending on tree inputs including tree location, height, height to live crown, crown radius, and crown concavity. Starting at the resolution of the fire grid on QUIC-Fire (2m), fuels will be aggregated, and characteristics will be calculated with resolutions of 2, 4, 6, 8, 16, and 32 m, as well as using a single fuel characteristic for the entire plot. I will then use QUIC-Fire under a full range of wind and dead fuel moisture conditions common to prescribed and wildland fires to represent potential ranges of fire intensity, since it is possible that fuel resolution is only relevant for fire intensities under a particular threshold of wind speed, moisture content, or some combination of each. These thresholds will be investigated using a suite of different metrics that have been developed to fully describe the fire environment. Some of these include the bulk rate of spread (analogous to perimeter growth rate), the reduced area, and the normalized canopy consumption, as well as more traditional metrics such as surface fuel consumption and max downwind spread rate. Using QUIC-Fire in an ensemble fashion will allow us to calculate a margin of error that?s considered acceptable for every run, and sensitivity to the fuel heterogeneity can then be tested -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Fri May 15 16:07:36 2020 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 15 May 2020 16:07:36 -0400 Subject: [Eoas-seminar] Suggested speakers Message-ID: Colleagues, Our EOAS Colloquium in fall will take place online.? Please provide you suggestions for speakers to the Colloquium Committee including myself, Zhaohua Wu and Jeremy Owens. Since the presentations will be done remotely, this will be a good chance for us to bring in speakers from further locations that we otherwise might not be able to cover the costs for. Thanks Amy -- Amy Baco-Taylor, PhD Associate Professor Earth, Ocean, and Atmospheric Sciences Florida State University (850) 645-1547 abacotaylor at fsu.edu NOTE new mailing address: EOAS Building 1011 Academic Way Tallahassee, FL 32306 From eoas-seminar at lists.fsu.edu Wed May 20 14:33:34 2020 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Wed, 20 May 2020 18:33:34 +0000 Subject: [Eoas-seminar] **REMINDER**TOMORROW***THURS. at 11:00AM***Department of Scientific Computing Graduate Student Seminar on Thursday, May 21st at 11:00AM via zoom id#920-1944-9214 In-Reply-To: References: , , , Message-ID: *************REMINDER*************REMINDER*********TOMORROW at 11:00AM*************** &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& & GFDI and Department of Scientific Computing Seminar & &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& TITLE: A method of fuel characterization for fire behavior models and the influence of fuel heterogeneity on fire spread. SPEAKER: Mr. Daniel Rosales Giron MS Graduate Candidate Department of Scientific Computing & GFD Fire Dynamics Program Major Professor: Dr. Kevin Spee MAJOR PROFESSOR: Dr. Kevin Speer DATE & TIME: Thursday, May 21, at 11 AM Zoom Meeting ID: https://fsu.zoom.us/j/92019449214 Zoom id# 920-1944-9214 &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& & DEFENSE FOLLOWS THE SEMINAR & &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& Abstract: High spatial variability has been observed in simple fuelbeds (Keane et al.2012, Hiers et al. 2009) which accentuates the need to describe the actual fuel arrangement and composition of fuels in a prescribed or wildfire operation setting as opposed to abstract representations, regardless of model application and domain size.Working with high resolution 3D datasets, I will apply TLS scan information of highly instrumented burn plots in Pebble Hill and Eglin Air Force Base to create voxelized data arrays containing bulk density and fuel height for surface fuels <1m on a horizontal resolution of 0.5 m2. This will be coupled with a common method to populate the environment with trees described in Linn et al. (2005), where fuel is assigned to voxels depending on tree inputs including tree location, height, height to live crown, crown radius, and crown concavity. Starting at the resolution of the fire grid on QUIC-Fire (2m), fuels will be aggregated, and characteristics will be calculated with resolutions of 2, 4, 6, 8, 16, and 32 m, as well as using a single fuel characteristic for the entire plot. I will then use QUIC-Fire under a full range of wind and dead fuel moisture conditions common to prescribed and wildland fires to represent potential ranges of fire intensity, since it is possible that fuel resolution is only relevant for fire intensities under a particular threshold of wind speed, moisture content, or some combination of each. These thresholds will be investigated using a suite of different metrics that have been developed to fully describe the fire environment. Some of these include the bulk rate of spread (analogous to perimeter growth rate), the reduced area, and the normalized canopy consumption, as well as more traditional metrics such as surface fuel consumption and max downwind spread rate. Using QUIC-Fire in an ensemble fashion will allow us to calculate a margin of error that?s considered acceptable for every run, and sensitivity to the fuel heterogeneity can then be tested -------------- next part -------------- An HTML attachment was scrubbed... URL: