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. In recent years, with the rapid development of the Jiaozhou Bay area of Qingdao, the influence of human activities on the coastline of Jiaozhou Bay is becoming more and more serious. Based on the high resolution remote sensing image data of 10 periods from 2001 to 2017 in the Jiaozhou Bay area, and combined with the data of on-the-spot survey and expert knowledge, this paper have completed the interpretation and extraction of coastline data of each year, and analyzed the distribution, size, rate of change, and trend of the increase and decrease of the coastal area of Jiaozhou Bay in different time periods, combined with the economic construction and the marine hydrodynamic environment of the region to analyze the reasons for the change of the coastline of Jiaozhou Bay. The results show that the increase and reduction of the coastal area of Jiaozhou Bay was mainly affected by human activities such as sea reclamation and marine aquaculture, resulting in a gradual change in the rate of increase and decrease with human development. For coastal advance part,2001–2013, the average increase rate on the coastal area of Jiaozhou Bay was 2.30 km2/a, showing a trend of rapid growth, 2013–2017 the average increase rate of 0.53 km2/a, and the growth rate slowed down. For coastal retreat part, 2001–2013, the average decrease rate was 2.58 × 10−3 km2/a. 2013–2014, the decrease rate reached a peak value of 1.11 km2/a. 2014–2017, the average decrease rate was 0.14 km2/a. The decrease rate shows a trend of increasing first and then slowing down.

the international archives of the photogrammetry, remote sensing and spatial information sciences/international archives of the photogrammetry, remote sensing and spatial information sciences

STUDY ON THE COASTLINE CHANGE OF JIAOZHOU BAY BASED ON HIGH RESOLUTION REMOTE SENSING IMAGE