M. Bentley, Jinda Sae-Jung, S. Kaminski, Pavich Kesavawong
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Documenting the evolution and expansion of surface urban heat in the Bangkok Metropolitan Region, 2000–2019
ABSTRACT The evolution of land surface temperatures (LSTs) within the Bangkok Metropolitan Region (BMR) is examined with respect to patterns of urbanization from 2000 to 2019. Change detection as well as examinations of five periods within the 20 years yield insights into the spatial patterning of surface urban heat (SUH) within the BMR. Results suggest that the LSTs in portions of the BMR have increased more than 5°C during the 20-year period. The spatial distribution of SUH exhibits a pattern where high LSTs occur outward and primarily westward from the urban core along highways serving as development corridors and related regions of rapid urbanization. Nighttime LSTs have not increased as markedly as daytime; however, several noted “hotspots” have intensified over time and are located in districts along the southern seaboard. The greatest LST increase through the 20-year period is located in the northwest of the Bangkok urban core in Bang Kruai and Mueang Nonthaburi. A close investigation of this area indicates that the LST hotspots are co-located with rapid urban expansion into the area that has been facilitated by the destruction of orchards and other agriculture lands from a flood that occurred in 2011. The significant changes in land cover from orchards and agriculture to urban and built-up have led to the large increases in LSTs within the region.
期刊介绍:
Asian Geographer disseminates knowledge about geographical problems and issues focusing on Asia and the Pacific Rim. Papers dealing with other regions should have a linkage to Asia and the Pacific Rim. Original and timely articles dealing with any field of physical or human geographical inquiries and methodologies will be considered for publication. We welcome, for example, submissions on people-environment interactions, urban and regional development, transport and large infrastructure, migration, natural disasters and their management, environment and energy issues. While the focus of the journal is placed on original research articles, review papers as well as viewpoints and research notes under the category of “Asian Geography in Brief” are also considered. Review papers should critically and constructively analyse the current state of understanding on geographical and planning topics in Asia. The ‘Asian Geography in Brief’ section welcomes submissions of applied geographical and planning research about Asia. The section aims to showcase (1) the diverse geography and planning of Asia; and (2) the diverse geographical and planning research about Asia. The journal will also publish special issues on particular themes or areas. Book reviews can be included from time to time.