Normalized Method for Land Surface Temperature Monitoring on Coastal Reclaimed Areas

The temporal analysis of land surface temperature (LST) has generally been studied using data from the same season, as temperature varies greatly over time. However, the cloud cover in thermal remotely sensed images and the coarse resolution of passive sensor system significantly limits data availab...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2019-11, Vol.19 (22), p.4836
Main Authors: Mohamadi, Bahaa, Chen, Shuisen, Balz, Timo, Gulshad, Khansa, McClure, Stephen C
Format: Article
Language:English
Subjects:
Autumn
Cloud cover
coastal environment
Coastal zone
Coasts
Economic development
Heat
Land cover
land reclamation
Land surface temperature
land surface temperature (lst)
Monitoring
pearl river estuary
Remote sensing
Remote sensors
Seasonal variations
Seasons
Time series
Urban areas
Urban heat islands
urban heat islands (uhi)
Urbanization
Water temperature
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Summary:The temporal analysis of land surface temperature (LST) has generally been studied using data from the same season, as temperature varies greatly over time. However, the cloud cover in thermal remotely sensed images and the coarse resolution of passive sensor system significantly limits data availability of same season for comparative temporal analysis in many parts of the world. To address this problem, we propose a new method for temporal monitoring of surface temperature based on LST normalization (LSTn); deploying the average open water temperature to normalize LST when monitoring temporal change in the surface temperature of newly coastal reclaimed areas. This method was applied in the Lingding Bay area, Guangdong Province, Southern China. Original LST and LSTn values were calculated for years 1987, 1997, 2007, and 2017. In contrast to the original LST, results show that LSTn can reduce seasonal variability when monitoring temporal change in surface temperatures. Additionally, LSTn revealed pronounced differences between the temperature of impervious surfaces and other land cover types. This method offers more robust detection of surface urban heat islands than original LST in newly developed coastal areas.
ISSN:1424-8220
1424-8220
DOI:10.3390/s19224836