Seasonal and Diurnal Characteristics of Land Surface Temperature and Major Explanatory Factors in Harris County, Texas

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dc.contributor.author Liu, Weibo
dc.contributor.author Feddema, Johannes
dc.contributor.author Hu, Leiqiu
dc.contributor.author Zung, Ashley
dc.contributor.author Brunsell, Nathaniel
dc.date.accessioned 2019-03-13T05:26:37Z
dc.date.available 2019-03-13T05:26:37Z
dc.date.copyright 2017 en_US
dc.date.issued 2017
dc.identifier.citation Liu, W.; Feddema, J.; Hu, L.; Zung, A.; & Brunsell, N. (2017). Seasonal and diurnal characteristics of land surface temperature and major explanatory factors in Harris County, Texas. Sustainability, 9(12), article 2324. DOI: 10.3390/su9122324 en_US
dc.identifier.uri https://doi.org/10.3390/su9122324
dc.identifier.uri http://hdl.handle.net/1828/10649
dc.description.abstract The effects of biophysical and meteorological factors on land surface temperature (LST) have been well studied in previous research. However, less attention has been paid to examine how building materials influence the magnitude of LST within an urban environment. This study investigates the interaction of biophysical and building wall materials to influence LST in Harris County, Texas, USA using multiple stepwise linear regression analyses and neighborhood analysis. Working at 1 km grid resolution, LST data is related to impervious surface fraction, albedo, distance to water bodies, and seven major wall types. Ten years of aggregated MODIS (Moderate Resolution Imaging Spectroradiometer) daily LST products were used to calculate the mean LST in January and August for daytime and nighttime conditions. Harris County 2010 parcel level building property data were used to create composition characteristics of the building wall types. Our results demonstrate that both biophysical and building wall characteristics significantly influence the spatiotemporal variations of LST. However, biophysical factors are the dominant explaining factors compared to building wall materials. Impervious surface fraction is the most significant variable to explain the variation of LST, and has positive effects on LST. In contrast, high albedo materials and the presence of open water bodies significantly affect LST and are good candidate variables to mitigate the heat island effect. Furthermore, the building wall variables all increase LST for both daytime and nighttime, but different wall materials have various effects on LST. Brick/veneer and frame/concrete block are the two dominant wall types in Harris County and tend to generate higher LST. These results demonstrate how building materials, in combination with biophysical factors, can be used to mitigate neighborhood-scale LST. This methodology works reasonably well for Houston, but is likely to be more effective in higher density urban settings. en_US
dc.description.sponsorship We acknowledge support from NASA ROSES grant #09-IDS09-34, System for Integrated Modeling of Metropolitan Extreme Heat Risk (SIMMER), the National Center for Atmospheric Research, and the University of Kansas. We would also like to thank the two anonymous reviewers and editors for providing valuable comments and suggestions which helped improve the manuscript greatly. en_US
dc.language.iso en en_US
dc.publisher Sustainability en_US
dc.subject urban heat island en_US
dc.subject land surface temperature en_US
dc.subject impervious surface fraction en_US
dc.subject albedo en_US
dc.subject building wall characteristics en_US
dc.title Seasonal and Diurnal Characteristics of Land Surface Temperature and Major Explanatory Factors in Harris County, Texas en_US
dc.type Article en_US
dc.description.scholarlevel Faculty en_US
dc.description.reviewstatus Reviewed en_US

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