Journal of Geographical Sciences ›› 2021, Vol. 31 ›› Issue (3): 369-388.doi: 10.1007/s11442-021-1848-6

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Effect of shipping activity on warming trends in the Canadian Arctic

Mian Sabir HUSSAIN1(), Inhye HEO1, Sujeong IM2, Seungho LEE2,*()   

  1. 1. Climate Research Institute, Konkuk University, Seoul, Korea
    2. Department of Geography, Konkuk University, Seoul, Korea
  • Received:2020-05-16 Accepted:2020-09-08 Online:2021-03-25 Published:2021-05-25
  • Contact: Seungho LEE E-mail:konkuk.climate@gmail.com;leesh@konkuk.ac.kr
  • About author:Mian Sabir Hussain (1975–), PhD, specialized in monsoon rainfall and polar climate. E-mail: konkuk.climate@gmail.com
  • Supported by:
    Korea Polar Research Institute(PE19900);Ministry of Education of the Republic of Korea and National Research Foundation of Korea(NRF-2016S1A3A2924243)

Abstract:

This paper presents a detailed account of the effect of shipping activity on the increasing trends of air temperatures in the Canadian Arctic region for the period of 1980-2018. Increasing trend of temperature has gained significant attention with respect to shipping activities and sea ice area in the Canadian Arctic. Temperature, sea ice area and shipping traffic datasets were investigated, and simple linear regression analyses were conducted to predict the rate of change (per decade) of the average temperature, considering winter (January) and summer (July) seasons. The results indicate that temperature generally increased over the studied region. Significant warming trend was observed during July, with an increase of up to 1°C, for the Canadian Arctic region. Such increasing trend of temperature was observed during July from the lower to higher latitudes. The increase in temperature during July is speculated to increase the melting of ice. Results also show a decline in sea ice area has a significant positive effect on the shipping traffic, and the numbers of marine vessel continue to increase in the region. The increase in temperature causes the breaking of sea ice due to shipping activities over northern Arctic Canada.

Key words: shipping activity, increasing trend of temperature, sea ice area, Canadian Arctic