COMPARISON OF VALUATION RESULT OF ECOSYSTEM SERVICES DEPENDING ON THE SPATIAL RESOLUTION OF IMAGERY: USING KOMPSAT-3 AND LANDSAT 8 SATELLITE IMAGERY

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Research areas:
Year:
2017
Type of Publication:
Article
Keywords:
Ecosystem service value, satellite imagery, dependency of resolution, KOMPSAT-3, Landsat 8
Authors:
Jiyoon Moon, Youn-soo Kim
Abstract:
Despite the continuing effort to estimate the value of function and services of the ecosystem, most of the studies have used low and medium resolution satellite imagery such as MODIS or Landsat. It means that the studies to measure the ecosystem service value using VHR(Very High Resolution) satellite imagery have not been performed much, while the source of available VHR imagery is increasing. Furthermore, it is a lack of study to compare and demonstrate the impact of spatial scale of ecosystem service valuation using VHR and low-medium resolution satellite imagery.There is a previous study which evaluates the scale dependency of ecosystem service value using satellite imagery with different ground resolution, however, it seems hard to use VHR imagery because NOAA-AVHRR and Landsat TM imagery were used in this paper. In addition, it was limited to find the common characteristics or correlation as they did not use temporally accumulated dataset, and the result was shown that there is no specific relationship or dependency according to the difference of resolution when they perform the analysis over the mainland of USA.Thus, the aim of this study is to compare and evaluate the difference of ecosystem service value using KOMPSAT-3 (0.7m GSD) and Landsat 8 (15m GSD) imagery over Sejong City, the new administrative capital of S. Korea. Total 6 scenes (3 scenes for each satellite) will be used for this study, which were collected during spring (March ~ May) in every year from 2014 to 2016. As the multi-temporal images over the same study area will be used to compare the result, it is also expected to find any correlation or common trend depending on the difference of resolution.
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