Monitoring Land Surface Temperature in the Karajae Watershed as an influential ecosystem for Pare-Pare City
Chairil A, Munajat Nursaputra, Yunus Furqan Ramdani

Forestry, Hasanuddin University

Abstract

Temperature is one of the environmental factors for monitoring the condition of an area. In general, monitoring is only done in urban areas without looking at the surrounding conditions. Even though temperature is influenced by several factors, starting from geographical location, position to the sun, altitude, and biophysical conditions such as land. Land cover is also a very dynamic factor as well as its influence on temperature changes. This study looks at changes in land surface temperature in the Karajae watershed area as ecosystems that affect Pare-Pare City or vice versa. This study uses a remote sensing method in the form of multi-temporal Landsat Imagery data. The condition image shows changes in land cover using the on-screen method, and soil surface temperature using a single-channel algorithm. Land cover change becomes the basis for future land cover using the cellular automata (CA) method, and also characterizes the soil surface temperature with a normalized fractional vegetation cover relationship. The results show high ground surface temperatures in coastal areas and also a lot of human activity as a downstream area compared to upstream areas where activity is reduced and there is still a lot of vegetation. In the last decade, the increase in ground surface temperature has covered all watershed areas. In the future, it is estimated that the land surface temperature will continue to increase, but not as much as in the last decade. It should be noted that there is a significant increase in ground surface temperature in areas where there is an increase in community activity.

Keywords: Land Surface Temperature, land cover, Karajae Watershed, Pare-Pare City

Topic: Topik C: Ecological risk and natural disaster