표 1과 같이 일반적인 산술 평균법보다 정확하다고 알려진 Thiessen 방법을 이용하여 관측소별 지배 면적을 산정하고 면적 가중치를 도출하였다.
As shown in Table 1, the dominant area for each station was calculated and the area weight was determined using the Thiessen method, which is known to be more accurate than the general arithmetic mean method.