인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
개인구독
소속 기관이 없으신 경우, 개인 정기구독을 하시면 저렴하게
논문을 무제한 열람 이용할 수 있어요.
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
In this study, the decadal variations of global dust storm events (DSEs) are studied based on two typical cases that occurred in East Asia in 2023 and in North America in 1934, respectively. We found that the periods with weak winter monsoon, varied jet stream, weakened Siberian High (SH) and strengthening atmospheric blocking corresponded to the high incidence of DSEs in East Asia. In recent years, activity of the East Asian DSEs is active again because of the mutual effect of these four systems. Due to the ecological engineering projects in China, the frequency of the DSEs is less than that in Mongolia, whereas in Mongolia, the land degradation causes the frequency of DSEs to increase significantly. In the Great Plains of the United States, high incidence of the DSEs mainly corresponded to periods with strong atmospheric blocking in North America. Since the 1860s, the Great Plains had been affected by destruction of vegetation and drought, with bare soil swept into the air by the strong winds, resulting in “Dust Bowl” in the 1930s. Under the warning of long-term strong DSEs, the U.S. government issued a series of policies to respond to the impact of DSEs, which improved the ecosystem of the Great Plains. As a result of the improved ecosystem and weaker blocking activities in the Great Plains in the 1950s, activity of the DSEs was significantly weaker than that in the 1930s.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.