• Cross-Cultural Studies
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• v.47
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• pp.53-76
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• 2017

This paper is a study on the tasks to be carried out by Tsushima clan who invited the envoy -the 38th Munwihaeng- from Korea in 1747, and the process and results. This envoy sent out for the purpose of congratulating Tokugawa, Yoshimune's retirement and Tsushima lord's return home, and also negotiate about Korean Diplomatic Envoys to Japan coming in the future. In late 1745, Yoshimune retired, and Ieshige inherited the position of Shogun. Then in 1746 the Edo Shogunate ordered the Tsushima clan to invite the Korean Diplomatic Envoy to Edo between April and May two years after. To the Korean Diplomatic Envoy's invitation, many stages were necessary. In additon, Korea insisted on following the precedent in exchange with Japan. This time, throne of this new Shogun occurred due to retirement of the former Shogun. In the last 100 years, the history that the former Shogun died and the new Shogun reigned continued. For that reason, Korea had no record of sending letters and gifts to the old Shogun who retired. Because there was no precedent, Korea was unable to smoothly respond to Japan's request. This paper considers the negotiation process with Korea and the Tsushima clan, makes a prestige of the shogunate, in order to be recognized from the shogunate.

• Korean Journal of Remote Sensing
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• v.39 no.6_3
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• pp.1747-1761
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• 2023

Wetlands, defined as lands periodically inundated or exposed during the year, are crucial for sustaining biodiversity and filtering environmental pollutants. The importance of mapping and monitoring their topographical changes is therefore paramount. This study focuses on the topographical variations at the Incheon River estuary wetland post-restoration, noting a lack of adequate prior measurements. Using a multi-temporal Sentinel-1 dataset from October 2014 to March 2023, we mapped long-term variations in water bodies and detected topographical change anomalies using a pixel-frequency approach. Our analysis, based on 196 Sentinel-1 acquisitions from an ascending orbit, revealed significant topography changes. Since 2020, employing the pixel-frequency technique, we observed area increases of +0.0195, 0.0016, 0.0075, and 0.0163 km² in water level sections at depths of 2-3 m, 1-2 m, 0-1 m, and less than 0 m, respectively. These findings underscore the effectiveness of the wetland restoration efforts in the area.