A5079215159- Disaster Management and Resilience
- Flood Risk Assessment and Management
- Climate Change and Health Impacts
- Tropical and Extratropical Cyclones Research
- Infrastructure Resilience and Vulnerability Analysis
- Climate Change Communication and Perception
- Wind and Air Flow Studies
- Advanced Aircraft Design and Technologies
- Urban Heat Island Mitigation
- Vehicle emissions and performance
- Environmental Education and Sustainability
- Photovoltaic System Optimization Techniques
- Solar Radiation and Photovoltaics
- Atmospheric and Environmental Gas Dynamics
- Climate Change Policy and Economics
- Air Traffic Management and Optimization
- Urban Green Space and Health
- Sustainability and Climate Change Governance
- Coastal and Marine Dynamics
- Air Quality and Health Impacts
- Carbon Dioxide Capture Technologies
- Climate change impacts on agriculture
- Social Acceptance of Renewable Energy
- Innovative Teaching Methods
- Public Relations and Crisis Communication
Carnegie Mellon University
2011-2021
RAND Corporation
2017-2021
California Institute of Technology
2019
Okinawa Institute of Science and Technology Graduate University
2018
University of Toronto
2018
American Institute of Aeronautics and Astronautics
2007
Massachusetts Institute of Technology
2007
With increasing evidence of global warming, many cities have focused attention on response plans to address their populations' vulnerabilities. Despite expected increased frequency and intensity heat waves, the health impacts such events in urban areas can be minimized with careful policy economic investments. We focus Pittsburgh, Pennsylvania ask two questions. First, what are top factors contributing vulnerability how do these characteristics manifest geospatially throughout Pittsburgh?...
Climate change poses new and unique challenges that threaten lives livelihoods. Given the increasing risks looming uncertainty of climate change, attention has been directed towards adaptation, or strategies enable humanity to persist thrive through best it can. Though is a global problem often discussed at national scale, urban areas are increasingly seen as having distinct role, distinctive motivation capacity, for adaptation. The 12 articles in this special issue explore ways...
Summary In the ongoing debate about climate benefits of fuel switching from coal to natural gas for power generation, metrics used model impacts may be important. this article, we evaluate life cycle greenhouse emissions and in new, advanced plants using a broad set available order test robustness results. Climate included article are global warming potential, temperature change technology cumulative radiative forcing. We also Model Assessment Greenhouse‐gas Induced Change (MAGICC)...
We examine the potential for geographic smoothing of solar photovoltaic (PV) electricity generation using 13 months observed power production from utility-scale plants in Gujarat, India. To our knowledge, this is first published analysis PV actual data at high time resolution plants. use correlation and Fourier transform estimates spectral density (PSD) to characterize variability operating as a function scale. Most show spectrum that linear log–log domain frequencies f, ranging (slopes...
Daytime surface UHI (SUHI) and the factors influencing it across highly populated cities in India United States (US) were evaluated. Urban-rural mean land temperature (LST) differences (ΔTS) calculated correlated with vegetation built-up densities, quantified using Normalized Difference Vegetation Index (NDVI) Based Built-Up (IBI) respectively. The results from US show a conventional SUHI phenomenon, LST decrease increasing decreasing surfaces. However, India, despite existing urban areas...
We investigate tropical cyclone wind and storm surge damage reduction for five areas along the Miami-Dade County coastline either by hardening buildings or hypothetical application of wind-wave pumps to modify storms. calculate height speed as functions return period sea surface temperature pumps. then estimate costs economic losses with FEMA HAZUS-MH MR3 model census data on property at risk. All experience more damages short periods, long periods. The which dominating hazard component...
Predictions of climate change can significantly affect the optimization measures reducing long-term risk for assets exposed to extreme events. Although a single model be represented by Markov stochastic process and directly integrated into sequential decision-making procedure, under epistemic uncertainty about is computationally more challenging. Decision makers have define not only set models with corresponding probabilities, but also whether how they will learn likelihood these during...
Carbon capture and sequestration (CCS) may be a key technology for achieving large CO2 emission reductions. Relative to "normal" CCS, "flexible" CCS retrofits include solvent storage that allows the generator temporarily reduce parasitic load increase generator's net efficiency, capacity, ramp rate. Due this flexibility, flexible generators provide system benefits normal do not, which could make an economic reduction strategy. Here, we estimate system-level cost effectiveness of reducing...
Abstract Extreme heat events can lead to increased risk of heat-related deaths. Furthermore, urban areas are often hotter than their rural surroundings, exacerbating waves. Unfortunately, validation is difficult; our knowledge, most validations, even if they control for temperatures, really only validate a social vulnerability index instead index. Here we investigate how construct and given uncertainty ranges in data the city Rio de Janeiro. First, compare excess deaths certain types...
Recent dramatic increases in damages caused by tropical cyclones (TCs) and improved understanding of TC physics have led DHS to fund research on intentional hurricane modification. We present a decision analytic assessment whether it is potentially cost-effective attempt lower the wind speed TCs approaching South Florida reducing sea surface temperatures with wind-wave pumps. Using historical data hurricanes Florida, we develop prior probabilities how storms might evolve. The effects...
We examined the geographic smoothing of solar photovoltaic generation from 15 utility-scale plants in California, Nevada, and Arizona 19 commercial building installations California. This is first comparison building-mounted PV examination this region. Our research questions were (1) how does rooftop compare to that utility scale PV?, (2) found for same western US as India?, (3) wind? By examining power output these generators frequency domain, we quantified obtained by combining...
Abstract Natural hazard mitigation is a recent field in name only. For decades various professionals have been practicing mitigation: for example, emergency managers working with architects and city planners to update building codes disaster-resistant construction, civil engineers local officials design flood-resistant urban drainage systems, foresters state enact more effective prescribed burning practices. Yet most often, natural has taken place as isolated activities scattered within the...