Philip E. Dennison
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View article: Kernel density change: A new bitemporal lidar metric for directly mapping wildland fire fuel consumption
Kernel density change: A new bitemporal lidar metric for directly mapping wildland fire fuel consumption Open
Biomass consumed in fires has direct ties to the carbon cycle and atmospheric emissions. Though pre- and post-fire aboveground fuel biomass can be estimated using ground measurements, scaling of fuel load and consumption estimates requires…
View article: Geolces: Geospatial Support for Evaluating Wildland Firefighter Lookouts, Communications, Escape Routes, and Safety Zones
Geolces: Geospatial Support for Evaluating Wildland Firefighter Lookouts, Communications, Escape Routes, and Safety Zones Open
View article: A singular, broadly-applicable model for estimating on- and off-path walking travel rates using airborne lidar data
A singular, broadly-applicable model for estimating on- and off-path walking travel rates using airborne lidar data Open
Accurate prediction of walking travel rates is central to wide-ranging applications, including modeling historical travel networks, simulating evacuation from hazards, evaluating military ground troop movements, and assessing risk to wildl…
View article: Visibility-informed mapping of potential firefighter lookout locations using maximum entropy modelling
Visibility-informed mapping of potential firefighter lookout locations using maximum entropy modelling Open
Background Situational awareness is an essential component of wildland firefighter safety. In the US, crew lookouts provide situational awareness by proxy from ground-level locations with visibility of both fire and crew members. Aims To u…
View article: Wildland Firefighter Estimated Ground Evacuation Time Modeling to Support Risk-Informed Decision-Making
Wildland Firefighter Estimated Ground Evacuation Time Modeling to Support Risk-Informed Decision-Making Open
Wildland firefighters often work in remote settings with multiple hazards that can cause life-threatening injuries. Prompt access to medical care is key to reducing injury consequences. For the last decade, a spatial model of wildland fire…
View article: Ecological and climatic transferability of airborne lidar-driven aboveground biomass models in Piñon-Juniper woodlands
Ecological and climatic transferability of airborne lidar-driven aboveground biomass models in Piñon-Juniper woodlands Open
Piñon-juniper (PJ) woodlands are an expansive and dynamic dryland ecosystem in the US that encompass a wide range of spatial, temporal, and ecological diversity. The dynamism of PJ woodland extent and abundance over space and time is attri…
View article: Globe-LFMC 2.0, an enhanced and updated dataset for live fuel moisture content research
Globe-LFMC 2.0, an enhanced and updated dataset for live fuel moisture content research Open
View article: Kernel Density Change: A New Bitemporal Lidar Metric for Directly Mapping Wildland Fire Fuel Consumption
Kernel Density Change: A New Bitemporal Lidar Metric for Directly Mapping Wildland Fire Fuel Consumption Open
View article: Modeling Wildland Firefighters’ Assessments of Structure Defensibility
Modeling Wildland Firefighters’ Assessments of Structure Defensibility Open
In wildland–urban interface areas, firefighters balance wildfire suppression and structure protection. These tasks are often performed under resource limitations, especially when many structures are at risk. To address this problem, wildla…
View article: Attribution of individual methane and carbon dioxide emission sources using EMIT observations from space
Attribution of individual methane and carbon dioxide emission sources using EMIT observations from space Open
Carbon dioxide and methane emissions are the two primary anthropogenic climate-forcing agents and an important source of uncertainty in the global carbon budget. Uncertainties are further magnified when emissions occur at fine spatial scal…
View article: Lookup Tables and Code for "Impact of Scene-Specific Enhancement Spectra on Matched Filter Greenhouse Gas Retrievals from Imaging Spectroscopy"
Lookup Tables and Code for "Impact of Scene-Specific Enhancement Spectra on Matched Filter Greenhouse Gas Retrievals from Imaging Spectroscopy" Open
Lookup Tables and Code for "Impact of Scene-Specific Enhancement Spectra on Matched Filter Greenhouse Gas Retrievals from Imaging Spectroscopy" The original dataset link is broken, so I uploaded it here for personal use.
View article: Lookup Tables and Code for "Impact of Scene-Specific Enhancement Spectra on Matched Filter Greenhouse Gas Retrievals from Imaging Spectroscopy"
Lookup Tables and Code for "Impact of Scene-Specific Enhancement Spectra on Matched Filter Greenhouse Gas Retrievals from Imaging Spectroscopy" Open
Lookup Tables and Code for "Impact of Scene-Specific Enhancement Spectra on Matched Filter Greenhouse Gas Retrievals from Imaging Spectroscopy" The original dataset link is broken, so I uploaded it here for personal use.
View article: The impacts of climate change, energy policy and traditional ecological practices on future firewood availability for Diné (Navajo) People
The impacts of climate change, energy policy and traditional ecological practices on future firewood availability for Diné (Navajo) People Open
Local-scale human–environment relationships are fundamental to energy sovereignty, and in many contexts, Indigenous ecological knowledge (IEK) is integral to such relationships. For example, Tribal leaders in southwestern USA identify fire…
View article: Firewood ABM Experiment data from The impacts of climate change, energy policy and traditional ecological practices on future firewood availability for Diné (Navajo) People
Firewood ABM Experiment data from The impacts of climate change, energy policy and traditional ecological practices on future firewood availability for Diné (Navajo) People Open
A data table containing outputs from the ABM experiment. All data needed to produce results reported in the paper is contained here.
View article: Firewood ABM from The impacts of climate change, energy policy and traditional ecological practices on future firewood availability for Diné (Navajo) People
Firewood ABM from The impacts of climate change, energy policy and traditional ecological practices on future firewood availability for Diné (Navajo) People Open
Netlogo file containing code to run the ABM.
View article: Supplementary figures and code from The impacts of climate change, energy policy and traditional ecological practices on future firewood availability for Diné (Navajo) People
Supplementary figures and code from The impacts of climate change, energy policy and traditional ecological practices on future firewood availability for Diné (Navajo) People Open
A knitted R Markdown document that provides code to generate the final summary figure in the paper as well as two supplementary figures.
View article: Optimizing Landsat Next Shortwave Infrared Bands for Crop Residue Characterization
Optimizing Landsat Next Shortwave Infrared Bands for Crop Residue Characterization Open
This study focused on optimizing the placement of shortwave infrared (SWIR) bands for pixel-level estimation of fractional crop residue cover (fR) for the upcoming Landsat Next mission. We applied an iterative wavelength shift approach to …
View article: Using Geographic Information to Analyze Wildland Firefighter Situational Awareness: Impacts of Spatial Resolution on Visibility Assessment
Using Geographic Information to Analyze Wildland Firefighter Situational Awareness: Impacts of Spatial Resolution on Visibility Assessment Open
Wildland firefighters must be able to maintain situational awareness to ensure their safety. Crew members, including lookouts and crew building handlines, rely on visibility to assess risk and communicate changing conditions. Geographic in…
View article: Quantifying methane emissions from the global scale down to point sources using satellite observations of atmospheric methane
Quantifying methane emissions from the global scale down to point sources using satellite observations of atmospheric methane Open
We review the capability of current and scheduled satellite observations of atmospheric methane in the shortwave infrared (SWIR) to quantify methane emissions from the global scale down to point sources. We cover retrieval methods, precisi…
View article: Tradeoffs between UAS Spatial Resolution and Accuracy for Deep Learning Semantic Segmentation Applied to Wetland Vegetation Species Mapping
Tradeoffs between UAS Spatial Resolution and Accuracy for Deep Learning Semantic Segmentation Applied to Wetland Vegetation Species Mapping Open
Recent advances in image classification of fine spatial resolution imagery from unoccupied aircraft systems (UASs) have allowed for mapping vegetation based on both multispectral reflectance and fine textural details. Convolutional neural …
View article: Quantifying methane emissions from the global scale down to point sources using satellite observations of atmospheric methane
Quantifying methane emissions from the global scale down to point sources using satellite observations of atmospheric methane Open
We review the capability of current and scheduled satellite observations of atmospheric methane in the shortwave infrared (SWIR) to quantify methane emissions from the global scale down to point sources. We cover retrieval methods, precisi…
View article: Measurements from inside a Thunderstorm Driven by Wildfire: The 2019 FIREX-AQ Field Experiment
Measurements from inside a Thunderstorm Driven by Wildfire: The 2019 FIREX-AQ Field Experiment Open
The 2019 Fire Influence on Regional to Global Environments and Air Quality (FIREX-AQ) field experiment obtained a diverse set of in situ and remotely sensed measurements before and during a pyrocumulonimbus (pyroCb) event over the Williams…
View article: Assessing Potential Safety Zone Suitability Using a New Online Mapping Tool
Assessing Potential Safety Zone Suitability Using a New Online Mapping Tool Open
Safety zones (SZs) are critical tools that can be used by wildland firefighters to avoid injury or fatality when engaging a fire. Effective SZs provide safe separation distance (SSD) from surrounding flames, ensuring that a fire’s heat can…
View article: Assessing Potential Safety Zone Suitability using the Safe Separation Distance Evaluator (SSDE)
Assessing Potential Safety Zone Suitability using the Safe Separation Distance Evaluator (SSDE) Open
Safety zones are fundamental tools that can be used by wildland firefighters to avoid injury or fatality when engaging in wildland fire operations. The National Wildfire Coordinating Group (NWCG) recommends that a safety zone be defined as…
View article: Convolutional Neural Networks for Detection of Point Source Methane Plumes in Airborne Imaging Spectrometer Data
Convolutional Neural Networks for Detection of Point Source Methane Plumes in Airborne Imaging Spectrometer Data Open
Earth and Space Science Open Archive PosterOpen AccessYou are viewing the latest version by default [v1]Convolutional Neural Networks for Detection of Point Source Methane Plumes in Airborne Imaging Spectrometer DataAuthorsKellyO'NeilliDPa…
View article: Evaluation of SWIR Crop Residue Bands for the Landsat Next Mission
Evaluation of SWIR Crop Residue Bands for the Landsat Next Mission Open
This research reports the findings of a Landsat Next expert review panel that evaluated the use of narrow shortwave infrared (SWIR) reflectance bands to measure ligno-cellulose absorption features centered near 2100 and 2300 nm, with the o…
View article: Impact of scene-specific enhancement spectra on matched filter greenhouse gas retrievals from imaging spectroscopy
Impact of scene-specific enhancement spectra on matched filter greenhouse gas retrievals from imaging spectroscopy Open
View article: Intermittency of Large Methane Emitters in the Permian Basin
Intermittency of Large Methane Emitters in the Permian Basin Open
The Permian Basin is the largest and fastest growing oil and gas (O&G) producing region in the United States. We conducted an extensive airborne campaign across the majority of the Permian in September–November, 2019 with imaging spectrome…
View article: Quantifying Global Power Plant Carbon Dioxide Emissions With Imaging Spectroscopy
Quantifying Global Power Plant Carbon Dioxide Emissions With Imaging Spectroscopy Open
Anthropogenic carbon dioxide (CO 2 ) emissions dominate uncertainties in the global carbon budget. Global inventories, such as the National Greenhouse Gas Inventories, have latencies of 12–24 months and may not keep pace with rapidly chang…
View article: Transient methane emissions in the Permian Basin
Transient methane emissions in the Permian Basin Open
<p>The Permian Basin is the largest and fastest growing oil and gas (O&G) producing region in the United States. Methane (CH4), a powerful greenhouse gas, is emitted from both routine and abnormal or avoidable operating condition…