Results 21 to 30 of about 186 (143)

Parameterizing building effects on airflows within the urban canopy layer for high‐resolution models using a nudging approach

Quarterly Journal of the Royal Meteorological Society, Volume 149, Issue 755, Page 2617-2633, July 2023 Part B., 2023
In this study, a new multilayer urban canopy parameterization for high‐resolution (∼1 km) atmospheric models using the nudging approach to represent the impacts of urban canopies on airflow is presented. Results show that the parameterization developed can simulate aerodynamic effects induced within the canopy by obstacles well, in terms of reduction ...
Ge Cheng, K. Heinke Schlünzen, David Grawe, Vivien Voss, Marcus Thatcher, Peter Rayner   +5 more
wiley   +1 more source

Mapping Local Climate Zones for a Worldwide Database of the Form and Function of Cities

ISPRS International Journal of Geo-Information, 2015
Progress in urban climate science is severely restricted by the lack of useful information that describes aspects of the form and function of cities at a detailed spatial resolution.
Benjamin Bechtel, Paul J. Alexander, Jürgen Böhner, Jason Ching, Olaf Conrad, Johannes Feddema, Gerald Mills, Linda See, Iain Stewart   +8 more
doaj   +1 more source

Assessing heat exposure to extreme temperatures in urban areas using the Local Climate Zone classification [PDF]

Natural Hazards and Earth System Sciences, 2021
Trends of extreme-temperature episodes in cities are increasing (in frequency, magnitude and duration) due to regional climate change in interaction with urban effects.
J. Gilabert, J. Gilabert, J. Gilabert, A. Deluca, D. Lauwaet, J. Ballester, J. Corbera, M. C. Llasat   +7 more
doaj   +1 more source

A Method to Improve Land Use Representation for Weather Simulations Based on High‐Resolution Data Sets—Application to Corine Land Cover Data in the WRF Model

Earth and Space Science, Volume 10, Issue 2, February 2023., 2023
Abstract Land cover (LC) data incorporation, for weather modeling purposes, highlights many problems. The straightforward Single Level Mode (SLM) aggregation is not adapted for high‐resolution LC maps, with a high number of classes, because it could generate false classifications.
M. de Bode, T. Hedde, P. Roubin, P. Durand   +3 more
wiley   +1 more source

Developing Comprehensive Local Climate Zone Land Use Datasets for Advanced High-Resolution Urban Climate and Environmental Modeling

Remote Sensing, 2023
The Local Climate Zone (LCZ) classification scheme is a vital method of building a category dataset for high-resolution urban land. For the development of urban meteorology, air pollution and related disciplines, the high-resolution classification data ...
Yongwei Wang, Danmeng Zhao, Qian Ma
doaj   +1 more source

Gaps in toxic industrial chemical model systems: Improvements and changes over past 10 years

Process Safety Progress, Volume 41, Issue 1, Page 151-166, March 2022., 2022
Abstract To assess the hazards of the releases of toxic industrial chemicals (TICs) to the atmosphere, comprehensive model systems are often used, which begin with the scenario definition and end with an estimate of health risk. In 2008 and 2010, the US Department of Homeland Security and Defense Threat Reduction Agency sponsored reports that ...
Steven Hanna, Thomas Mazzola, Joseph Chang, Thomas Spicer, Simon Gant, Rachel Batt   +5 more
wiley   +1 more source

Estimating Heat‐Related Exposures and Urban Heat Island Impacts: A Case Study for the 2012 Chicago Heatwave

GeoHealth, Volume 6, Issue 1, January 2022., 2022
Abstract Accelerated urbanization increases both the frequency and intensity of heatwaves (HW) and urban heat islands (UHIs). An extreme HW event occurred in 2012 summer that caused temperatures of more than 40°C in Chicago, Illinois, USA, which is a highly urbanized city impacted by UHIs.
Kaiyu Chen, Andrew J. Newman, Mengjiao Huang, Colton Coon, Lyndsey A. Darrow, Matthew J. Strickland, Heather A. Holmes   +6 more
wiley   +1 more source

Mapping Local Climate Zones in Lausanne (Switzerland) with Sentinel-2 and PRISMA imagery: comparison of classification performance using different band combinations and building height data

International Journal of Digital Earth, 2023
The Local Climate Zone (LCZ) concept has emerged as a valuable classification system for climate-related studies. The World Urban Database and Access Portal Tools (WUDAPT) protocol provides a framework for generating a LCZ segmentation which relies on ...
Alberto Vavassori, Gregory Giuliani, Maria Antonia Brovelli   +2 more
doaj   +1 more source

Sentinel-Based Adaptation of the Local Climate Zones Framework to a South African Context

Remote Sensing, 2022
The LCZ framework has become a widely applied approach to study urban climate. The standard LCZ typology is highly specific when applied to western urban areas but generic in some African cities.
Tshilidzi Manyanya, Janne Teerlinck, Ben Somers, Bruno Verbist, Nthaduleni Nethengwe   +4 more
doaj   +1 more source

The Human Influence Experiment (Part 2): Guidelines for Improved Mapping of Local Climate Zones Using a Supervised Classification

Urban Science, 2019
Since 2012, Local Climate Zones (LCZ) have been used for numerous studies related to urban environment. In 2015, this use amplified because a method to map urban areas in LCZs was introduced by the World Urban Database and Access Portal Tools (WUDAPT ...
Marie-leen Verdonck, Matthias Demuzere, Benjamin Bechtel, Christoph Beck, Oscar Brousse, Arjan Droste, Daniel Fenner, François Leconte, Frieke Van Coillie   +8 more
doaj   +1 more source