Establishment of a ground surface temperature map for climate change response on the basis of Landsat 8 OLI satellite images

Branch of Hanoi University of Natural Resources and Environment in Thanh Hoa province, Vietnam

^* Corresponding author: ttson.ph@hunre.edu.vn

Abstract

In recent years, in Vietnam, there have been studies using the thermal infrared channel to estimate the surface temperature value, studies using Plank's formula to estimate the surface temperature value from the thermal infrared channel without using the surface emissivity, using the emissivity as a common constant for coating objects [1 – 4]. In the area of Bim Son town – Thanh Hoa province – Vietnam, along with the process of urbanization as well as socio-economic development, the quality of the urban environment, surface coverage by plants and use activities have been greatly affected, especially the limestone mining for cement of one of the largest cement plants in the country (Bim Son cement plant) has had a significant impact on the temperature of the area. The monitoring results have not provided an overview of the temperature background of the whole area of Bim Son town in the period of 2017-2023 in order to assess the change in the temperature background of the region, thereby providing solutions to respond to climate change. The article uses Landsat 8 OLI satellite images to establish a surface heat map for the assessment of climate change for the area of Bim Son – Thanh Hoa, thereby making more general assessments for other areas in Vietnam. The experimental results were compared and evaluated to show the relevance of the data as well as the image processing process.