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http://dx.doi.org/10.7780/kjrs.2017.33.2.12

Analysis of net radiative changes and correlation with albedo over Antarctica  

Seo, Minji (Division of Earth Environmental System Science (Major of Spatial Information Engineering), Pukyong National University)
Lee, Kyeong-sang (Division of Earth Environmental System Science (Major of Spatial Information Engineering), Pukyong National University)
Choi, Sungwon (Division of Earth Environmental System Science (Major of Spatial Information Engineering), Pukyong National University)
Lee, Darae (Division of Earth Environmental System Science (Major of Spatial Information Engineering), Pukyong National University)
Kim, Honghee (Division of Earth Environmental System Science (Major of Spatial Information Engineering), Pukyong National University)
Kwon, Chaeyoung (Division of Earth Environmental System Science (Major of Spatial Information Engineering), Pukyong National University)
Jin, Donghyun (Division of Earth Environmental System Science (Major of Spatial Information Engineering), Pukyong National University)
Lee, Eunkyung (Division of Earth Environmental System Science (Major of Spatial Information Engineering), Pukyong National University)
Han, Kyung-Soo (Division of Earth Environmental System Science (Major of Spatial Information Engineering), Pukyong National University)
Publication Information
Korean Journal of Remote Sensing / v.33, no.2, 2017 , pp. 249-255 More about this Journal
Abstract
Antarctica isimportant area in order to understand climate change. In addition, this area is complex region where indicate warming and cooling trend according to previous studies. Therefore, it is necessary to understand the long-term variability of Antarctic energy budget. Net radiation, one of energy budget factor, is affected by albedo, and albedo cause negative radiative forcing. It is necessary to analyze a relationship between albedo and net radiation in order to analyze relationship between two factors in Antarctic climate changes and ice-albedo feedback. In thisstudy, we calculated net radiation using satellite data and performed an analysis of long-term variability of net radiation over Antarctica. In addition we analyzed correlation between albedo. As a results, net radiation indicates a negative value in land and positive value in ocean during study periods. As an annual changes, oceanic trend indicates an opposed to albedo. Time series pattern of net radiation is symmetrical with albedo. Correlation between the two factors indicate a negative correlation of -0.73 in the land and -0.32 in the ocean.
Keywords
Antarctica; Net radiation; Albedo; Energy budget;
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