Michael Wehner
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View article: The Role of Wind‐Moisture Characteristics in Shaping Atmospheric River Flood Hazards
The Role of Wind‐Moisture Characteristics in Shaping Atmospheric River Flood Hazards Open
Atmospheric rivers (ARs) are key drivers of extreme precipitation in the Western U.S. Using regionally downscaled thermodynamic global warming (TGW) simulations, we examine how ARs with varying wind and moisture characteristics respond to …
View article: Assessing the performance of solar radiation management geoengineering simulations
Assessing the performance of solar radiation management geoengineering simulations Open
Offsetting the global warming caused by anthropogenic increases in atmospheric greenhouse gases by deliberate injection of aerosols into the stratosphere is the most studied of solar radiation management geoengineering schemes. The long-te…
View article: Simulating Hurricane Katrina in the Simple Cloud‐Resolving E3SM Atmosphere Model v1
Simulating Hurricane Katrina in the Simple Cloud‐Resolving E3SM Atmosphere Model v1 Open
Climate models are important tools for advancing understanding and prediction of tropical cyclones (TCs). Traditional global climate models, however, do not have the ability to properly simulate TC intensity due to their coarse horizontal …
View article: Snow-eater heatwaves of the western United States
Snow-eater heatwaves of the western United States Open
Abrupt snowmelt, triggered by rain-on-snow events or ``snow-eater heatwaves'', can cause flooding, accelerate snow drought, and impact water availability. Yet the characteristics (e.g., area, duration, and frequency), impacts, and trends o…
View article: Comment on egusphere-2024-4086
Comment on egusphere-2024-4086 Open
View article: Performance Evaluation of Weather@home2 Simulations over West African Region
Performance Evaluation of Weather@home2 Simulations over West African Region Open
Weather and climate forecasting, using climate models, have become essential tools and life-savers in the West African region; in spite of the fact that climate models do not fully comply with attributes of forecast qualities—RASAP: reliab…
View article: Data-driven upper bounds and event attribution for unprecedented heatwaves
Data-driven upper bounds and event attribution for unprecedented heatwaves Open
The last decade has seen numerous record-shattering heatwaves in all corners of the globe. In the aftermath of these devastating events, there is interest in identifying worst-case thresholds or upper bounds that quantify just how hot temp…
View article: Performance Evaluation of Weather@home2 Simulations over West African Region
Performance Evaluation of Weather@home2 Simulations over West African Region Open
Weather and climate forecasting is extremely important for improving the socio-economic well-being of the West African region. It safe-guards the region from weather and climate related disasters. Hence, utilization of products from climat…
View article: Granger causal inference for climate change attribution
Granger causal inference for climate change attribution Open
Climate change detection and attribution (D&A) is concerned with determining the extent to which anthropogenic activities have influenced specific aspects of the global climate system. D&A fits within the broader field of causal inference,…
View article: Data-driven upper bounds and event attribution for unprecedented heatwaves
Data-driven upper bounds and event attribution for unprecedented heatwaves Open
The last decade has seen numerous record-shattering heatwaves in all corners of the globe. In the aftermath of these devastating events, there is interest in identifying worst-case thresholds or upper bounds that quantify just how hot temp…
View article: Weather effects on the lifecycle of U.S. Department of Defense equipment replacement (WELDER)
Weather effects on the lifecycle of U.S. Department of Defense equipment replacement (WELDER) Open
Extreme weather has a direct and significant impact on buildings and infrastructure, resulting in billions of dollars of damage each year. This problem continues to grow as climate patterns change and buildings are exposed to new and diffe…
View article: Systematic and objective evaluation of Earth system models: PCMDI Metrics Package (PMP) version 3
Systematic and objective evaluation of Earth system models: PCMDI Metrics Package (PMP) version 3 Open
Systematic, routine, and comprehensive evaluation of Earth system models (ESMs) facilitates benchmarking improvement across model generations and identifying the strengths and weaknesses of different model configurations. By gauging the co…
View article: Global Precipitation Experiment—A New World Climate Research Programme Lighthouse Activity
Global Precipitation Experiment—A New World Climate Research Programme Lighthouse Activity Open
The future state of the global water cycle and the prediction of freshwater availability for humans around the world remain among the challenges of climate research and are relevant to several United Nations Sustainable Development Goals. …
View article: On the uncertainty of long-period return values of extreme daily precipitation
On the uncertainty of long-period return values of extreme daily precipitation Open
Methods for calculating return values of extreme precipitation and their uncertainty are compared using daily precipitation rates over the Western U.S. and Southwestern Canada from a large ensemble of climate model simulations. The roles o…
View article: Statistically impossible temperatures.
Statistically impossible temperatures. Open
The 2021 heatwave in the Pacific Northwest of the United States and Canada was unusual in many regards. In particular, not only was the event deemed impossible prior to the human interference in the climate system, standard out-of-sample n…
View article: A modal/thermodynamic attribution analysis suggests that climate change is making La Niña and El Niño events stronger, longer and more energetic
A modal/thermodynamic attribution analysis suggests that climate change is making La Niña and El Niño events stronger, longer and more energetic Open
As the science of climate attribution continues to gain importance, we should remember that this discipline reaches back to the 1920s, when catastrophic droughts motivated research into the Southern Oscillation (Walker and Bliss 1932). Cli…
View article: Anticipating How Rain-on-Snow Events Will Change through the 21st Century: Lessons from the 1997 New Year’s Flood Event
Anticipating How Rain-on-Snow Events Will Change through the 21st Century: Lessons from the 1997 New Year’s Flood Event Open
The California-Nevada 1997 New Year’s flood was an atmospheric river (AR)-driven rain-on-snow (RoS) event and remains the costliest in their history. The joint occurrence of saturated soils, rainfall, and snowmelt generated inundation thro…
View article: Anthropogenic aerosols mask increases in US rainfall by greenhouse gases
Anthropogenic aerosols mask increases in US rainfall by greenhouse gases Open
View article: The growing inadequacy of an open-ended Saffir–Simpson hurricane wind scale in a warming world
The growing inadequacy of an open-ended Saffir–Simpson hurricane wind scale in a warming world Open
Global warming increases available sensible and latent heat energy, increasing the thermodynamic potential wind intensity of tropical cyclones (TCs). Supported by theory, observations, and modeling, this causes a shift in mean TC intensity…
View article: Comment on “Five Decades of Observed Daily Precipitation Reveal Longer and More Variable Drought Events Across Much of the Western United States”
Comment on “Five Decades of Observed Daily Precipitation Reveal Longer and More Variable Drought Events Across Much of the Western United States” Open
Changes in precipitation patterns with climate change could have important impacts on human and natural systems. Zhang et al. (2021, https://doi.org/10.1029/2020gl092293 ) report trends in daily precipitation patterns over the last five de…
View article: Weather Effects on the Lifecycle of U.S. Department of Defense Equipment Replacement (Welder)
Weather Effects on the Lifecycle of U.S. Department of Defense Equipment Replacement (Welder) Open
View article: Climate Change and Federal Aid Disbursements After Hurricane Harvey: An Extreme Event Attribution Analysis
Climate Change and Federal Aid Disbursements After Hurricane Harvey: An Extreme Event Attribution Analysis Open
View article: Comment on egusphere-2023-2720
Comment on egusphere-2023-2720 Open
Abstract. Systematic, routine, and comprehensive evaluation of Earth System Models (ESMs) facilitates benchmarking improvement across model generations and identifying the strengths and weaknesses of different model config…
View article: Review of: "Can artificial jellyfish be the next pragmatic autonomous self-deployable actuator?"
Review of: "Can artificial jellyfish be the next pragmatic autonomous self-deployable actuator?" Open
Upon being asked to review the work, this reviewer was anticipating a research article on a novel jellyfish inspired device.It was surprising, however, to find that this work primarily concerned reviewing the work of another
View article: Explosive Legged Robotic Hopping: Energy Accumulation and Power Amplification via Pneumatic Augmentation
Explosive Legged Robotic Hopping: Energy Accumulation and Power Amplification via Pneumatic Augmentation Open
We present a novel pneumatic augmentation to traditional electric motor-actuated legged robot to increase intermittent power density to perform infrequent explosive hopping behaviors. The pneumatic system is composed of a pneumatic pump, a…
View article: Comment on egusphere-2023-2720
Comment on egusphere-2023-2720 Open
Abstract. Systematic, routine, and comprehensive evaluation of Earth System Models (ESMs) facilitates benchmarking improvement across model generations and identifying the strengths and weaknesses of different model config…
View article: Supplementary material to "Objective Evaluation of Earth System Models: PCMDI Metrics Package (PMP) version 3"
Supplementary material to "Objective Evaluation of Earth System Models: PCMDI Metrics Package (PMP) version 3" Open
View article: Objective Evaluation of Earth System Models: PCMDI Metrics Package (PMP) version 3
Objective Evaluation of Earth System Models: PCMDI Metrics Package (PMP) version 3 Open
Systematic, routine, and comprehensive evaluation of Earth System Models (ESMs) facilitates benchmarking improvement across model generations and identifying the strengths and weaknesses of different model configurations. By gauging the co…
View article: The Influence of Climate Change on Flooding and Social Inequalities from Remnants of Hurricane Ida
The Influence of Climate Change on Flooding and Social Inequalities from Remnants of Hurricane Ida Open
Previous research has demonstrated that tropical cyclone-related precipitation and flooding have been increased by anthropogenic global warming. Our work aims to quantify the contribution of climate change to the deadly flooding from the r…
View article: Climate Change Signal in Atlantic Tropical Cyclones Today and Near Future
Climate Change Signal in Atlantic Tropical Cyclones Today and Near Future Open
This manuscript discusses the challenges in detecting and attributing recently observed trends in the Atlantic tropical cyclone (TC) and the epistemic uncertainty we face in assessing future risk. We use synthetic storms downscaled from fi…