A5039626546- Urban Heat Island Mitigation
- Urban Green Space and Health
- Climate variability and models
- Land Use and Ecosystem Services
- Climate Change and Health Impacts
- Remote Sensing and Land Use
- Meteorological Phenomena and Simulations
- Atmospheric aerosols and clouds
- Hydrology and Watershed Management Studies
- Climate change and permafrost
- Atmospheric and Environmental Gas Dynamics
- Building Energy and Comfort Optimization
- Atmospheric chemistry and aerosols
- Plant Water Relations and Carbon Dynamics
- Wind and Air Flow Studies
- Cryospheric studies and observations
- Noise Effects and Management
- Air Quality Monitoring and Forecasting
- Air Quality and Health Impacts
- Aeolian processes and effects
- Impact of Light on Environment and Health
- Peatlands and Wetlands Ecology
- Remote Sensing in Agriculture
- Species Distribution and Climate Change
- COVID-19 impact on air quality
Pacific Northwest National Laboratory
2021-2025
Norwegian Institute for Nature Research
2024
Nanjing University
2021-2024
University of Illinois Urbana-Champaign
2024
Yale University
2018-2024
University of Delaware
2024
Sandia National Laboratories
2024
Battelle
2024
Goddard Space Flight Center
2023
Johns Hopkins University
2023
Abstract Urban heat stress poses a major risk to public health. Case studies of individual cities suggest that exposure, like other environmental stressors, may be unequally distributed across income groups. There is little evidence, however, as whether such disparities are pervasive. We combine surface urban island (SUHI) data, proxy for isolating the contribution additional exposure in built environments, with census tract-level demographic data answer these questions summer days, when...
Abstract A growing literature documents the effects of heat stress on premature mortality and other adverse health outcomes. Urban islands (UHI) can exacerbate these impacts in cities by amplifying exposure during day inhibiting body’s ability to recover at night. Since UHI intensity varies not only across, but also within cities, intra-city variation may lead differential impact urban different demographic groups. To examine impacts, we combine satellite observations with census data...
Satellites overestimate urban heat islands.
The European Space Agency’s Sentinel satellites have laid the foundation for global land use cover (LULC) mapping with unprecedented detail at 10 m resolution. We present a cross-comparison and accuracy assessment of Google’s Dynamic World (DW), ESA’s Cover (WC) Esri’s Land (Esri) products first time in order to inform adoption application these maps going forward. For year 2020, three LULC show strong spatial correspondence (i.e., near-equal area estimates) water, built area, trees crop...
Abstract Warming trends in cities are influenced both by large-scale climate processes and local-scale urbanization. However, little is known about how surface warming of global differ from those characterized weather observations the rural background. Here, through statistical analyses satellite land temperatures (2002 to 2021), we find that mean trend 0.50 ± 0.20 K·decade −1 (mean one S.D.) urban core 2000-plus city clusters worldwide, 29% greater than for On average, background change...
Abstract Surface temperature is often used to examine heat exposure in multi‐city studies and for informing urban mitigation efforts due scarcity of air measurements. Cities also have lower relative humidity, traditionally not accounted large‐scale observational risk assessments. Here, using crowdsourced measurements from over 40,000 weather stations ≈600 clusters Europe, we show the moderating effect this urbanization‐induced humidity reduction on outdoor stress during 2019 heatwave. We...
Abstract Higher temperatures in urban areas expose a large fraction of the human population to potentially dangerous heat stress. Green spaces are promoted worldwide as local and city‐scale cooling strategies but amount, type, functioning vegetation cities lack quantification their interaction with climate different settings remains matter debate. Here we use state‐of‐the‐art remote sensing data from 145 city clusters disentangle drivers surface islands (SUHI) intensity quantify urban‐rural...
Abstract The COVID-19 lockdowns drastically reduced human activity, emulating a controlled experiment on human–land–atmosphere coupling. Here, using fusion of satellite and reanalysis products, we examine this coupling through changes in the surface energy budget during lockdown (1 April to 15 May 2020) Indo-Gangetic Basin, one world’s most populated polluted regions. During lockdown, reduction (>10%) columnar air pollution compared five year baseline, expected increase incoming solar...
This study examined the impact of cool roofs, green and solar panel roofs on near-surface temperature cooling energy demand through regional modeling in Chicago metropolitan area (CMA). The new parameterization based model physics has recently been developed, updated, coupled to a multilayer building that is fully integrated with Weather Research Forecasting model. We evaluate performance against observation measurements show our capable being suited tool simulate heatwave event. Next, we...
The combined impact of urbanization-induced warming and drying on large-scale heat stress disparities remains unknown, with multicity studies using satellite-derived land surface temperature as a proxy for these disparities. Here, high-resolution urban-resolving numerical model simulations 2014–2018, we find pervasive in all-sky average maximum summertime air moist metrics across US cities, higher outdoor exposure poorer primarily non-white census tracts. Ninety-four percent the urban...
Abstract A comprehensive comparison of the trends and drivers global surface canopy urban heat islands (termed I s c trends, respectively) is critical for better designing mitigation strategies. However, such a remains largely absent. Using spatially continuous land temperatures air (2003–2020), here we find that magnitude mean trend (0.19 ± 0.006°C/decade, SE) 5,643 cities worldwide nearly six‐times corresponding (0.03 0.002°C/decade) during day, while former (0.06 0.004°C/decade) double...
Urbanization is usually ignored when estimating past changes in large-scale climate and for future projections since cities historically covered a small fraction of the Earth's surface. Here, by combining global land surface temperature observations with historical estimates urban area, we demonstrate that contribution to continental- regional-scale warming has become non-negligible, especially rapidly urbanizing regions countries Asia. Consequently, expected expansion over next century...
Abstract Excessive heat is a major and growing risk for urban residents. Here, we estimate the inequality in summertime heat-related mortality, morbidity, electricity consumption across 5723 US municipalities other places, housing 180 million people during 2020 census. On average, trees majority non-Hispanic white neighborhoods cool air by 0.19 ± 0.05 °C more than POC neighborhoods, leading annually to helping prevent 190 139 deaths, 30,131 10,406 doctors’ visits, 1.4 0.5 terawatt-hours...
Abstract Satellite‐based thermal infrared (TIR) land surface temperature (LST) is hindered by cloud cover and applicable solely under clear‐sky conditions for estimating urban heat island intensity (SUHII). Clear‐sky SUHII may not accurately represent all‐sky conditions, potentially introducing quantitative biases in assessing islands. However, the differences between SUHIIs their spatiotemporal variations are still poorly understood. Our analysis of over 600 global cities demonstrates that...
Improvements in high-resolution satellite remote sensing and computational advancements have sped up the development of global datasets that delineate urban land, crucial for understanding climate risks our increasingly urbanizing world. Here, we analyze land cover patterns across spatiotemporal scales from several such current-generation products. While all show a rapidly world, with nearly tripling between 1985 2015, there are substantial discrepancies area estimates among products...