This is the 11079th most frequent Korean word.
기단은
"기단은" means "air mass is" or refers to an "air mass" in context.
In this sentence, '기단은' refers to 'the air mass' as the subject of the sentence, focusing on its formation.
기단은 어떻게 생성되나요?
How is the air mass formed?
In this example, '기단은' again serves as the subject, emphasizing the seasonal influence of air masses over a geographical region.
겨울철 기단은 한반도를 덮습니다.
Winter air masses cover the Korean Peninsula.
Here, '기단은' is used to introduce the concept of air masses as a crucial aspect of atmospheric studies.