Spatiotemporal pattern and long-term trend of global surface urban heat islands characterized by dynamic urban-extent method and MODIS data

2022 ◽  
Vol 183 ◽  
pp. 321-335
Author(s):  
Menglin Si ◽  
Zhao-Liang Li ◽  
Françoise Nerry ◽  
Bo-Hui Tang ◽  
Pei Leng ◽  
...  
Keyword(s):  
Urban Heat Islands ◽  
Spatiotemporal Pattern ◽  
Term Trend ◽  
Heat Islands ◽  
Modis Data ◽  
Urban Heat ◽  
Urban Extent ◽  
Global Surface ◽  
Long Term Trend

Characterization of Combined Effects of Urban Built-Up and Vegetated Areas on Long-Term Urban Heat Islands in Beijing

2019 ◽  
Vol 45 (5) ◽  
pp. 634-649
Author(s):  
Chengming Ye ◽  
Rui Chen ◽  
Yao Li ◽  
Tianqiang Liu ◽  
Keli Diao ◽  
...  
Keyword(s):  
Urban Heat Islands ◽  
Combined Effects ◽  
Heat Islands ◽  
Urban Heat

scholarly journals TEMPORAL AND SPATIAL ANALYSIS OF URBAN HEAT ISLAND USING LANDSAT SATELLITE DATA: TWO INDIAN CASE STUDIES

2018 ◽  
Vol IV-5 ◽  
pp. 71-78
Author(s):  
K. Dutta ◽  
D. Basu ◽  
S. Agrawal
Keyword(s):  
Land Cover ◽  
Rural Areas ◽  
Land Surface ◽  
Thermal Environment ◽  
Smart Cities ◽  
Vegetation Indices ◽  
Urban Heat Islands ◽  
Spatiotemporal Pattern ◽  
Heat Islands ◽  
Urban Heat

<p><strong>Abstract.</strong> Urban environment is examined through time series Landsat TM (Thematic Mapper) and OLI/TIRS (Operational Land Imager &amp;amp; Thermal Infrared Sensor) sensor images. A continuous surface of Land Surface Temperature (LST) can be extracted from Landsat thermal bands. Similarly different band combinations and ratios will give spatial pattern of land cover categories. Among these, building and vegetation indices are used to characterize the spatiotemporal pattern of elevated temperature zones in cities. This excess heat concentration creates thermal hotspots which are known as Urban Heat Islands (UHI). Parameters of land cover are then related to LST to detect the influence of urbanization on intensity and extent of heat islands, by pixel based quantitative analysis. This paper focuses on two megacities of India and their surrounding districts for identifying the critical UHI areas. The purpose of this paper is to create a database for reconstruction in old cities and planning of new smart cities. Results suggest that urban sprawl and substitution of rural areas with impervious surface plays significant role in microclimate, causing formation of new thermal hotspots. The analysis of urban thermal environment and its dynamics is to provide a scientific basis for future strategy building.</p>

scholarly journals Thermal seasons in Warsaw during the period 1961-2013

2014 ◽  
Vol 18 (4) ◽  
pp. 41-46 ◽  
Author(s):  
Grzegorz Majewski ◽  
Wiesława Przewoźniczuk
Keyword(s):  
Life Sciences ◽  
Measurement Data ◽  
Meteorological Station ◽  
Urban Heat Islands ◽  
Positive Trend ◽  
Climatic Region ◽  
Heat Islands ◽  
Air Temperatures ◽  
Urban Heat

Abstract This study determines the approximate duration of the thermal seasons in Warsaw, and investigates their long-term variability. The measurement data come from the Ursynów meteorological station at the Warsaw University of Life Sciences (WULS) (λE 21°02’52’’, φN 52°09’38’’, 102.5 m a.s.l.), situated in the south of Warsaw, and comprise mean diurnal air temperatures for the years 1961-2013. In order to identify thermal seasons, the method of five-day rolling averages was applied, which revealed a substantial year-by-year variability. The achieved results were close to those found by other methods for stations situated within the same climatic region. Over the analysed period, winters and springs have become shorter, whereas the other two seasons have become longer. Nevertheless, the positive trend was only statistically significant for thermal summers. The increasing length of the thermal summer in Warsaw Ursynów may be due to the influence of urban heat islands in built-up areas.

NAEP Trends: Main NAEP vs. Long-Term Trend

2010 ◽  
Author(s):  
Albert E. Beaton ◽  
James R. Chromy
Keyword(s):  
Term Trend ◽  
Long Term Trend

scholarly journals Participatory Air Quality and Urban Heat Islands Monitoring System

2021 ◽  
Vol 70 ◽  
pp. 1-14
Author(s):  
Mohamed Anis Fekih ◽  
Walid Bechkit ◽  
Herve Rivano ◽  
Manoel Dahan ◽  
Florent Renard ◽  
...  
Keyword(s):  
Air Quality ◽  
Monitoring System ◽  
Urban Heat Islands ◽  
Heat Islands ◽  
Urban Heat
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