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NOAA/AVHRR 자료에 의한 동북아시아해역 표층해수온의 시공간분석
민승환,김대현,윤홍주,Min, Seung-Hwan,Kim, Dae-Hyun,Yoon, Hong-Joo 한국정보통신학회 2010 한국정보통신학회논문지 Vol.14 No.12
1985~2009년 동안 동북아시아해역 해수면온도의 시 공간변화특성을 연구하였는데, 먼저 기상청 부이 8곳의 자료와 위성 자료를 비교하였다. 제곱평균오차와 편차는 얕은 연안으로 갈수록 증가하였다. 연구해역은 일본기상청에서 나눈 방식에 따라 7해역으로 구분하고, NOAA/AVHRR 자료를 사용하여 조화분해를 수행하여 각 해역의 중점을 비교 분석하였다. 평균해수표면온도는 $8{\sim}26^{\circ}C$의 변화를 보였고, 연진폭은 $7{\sim}24^{\circ}C$까지 변하였다. 그리고 연위상은 7월말에서 8월말까지로 나타났다. 각 해역의 교차상관계수는 표면수온, 연진폭, 연위상이 각각 0.57~0.85, -0.04~0.81, 그리고 0.35~0.80으로 나타났다. To study the spatial and temporal variations of sea surface temperature(SST) in the Northeast Asia sea during the period of 1985 to 2009. At first, the buoy data from Korea Meteorological Administration(KMA) and the satellite data have been matched up eight points. The root mean square error and the bias were increased towards the coastal shallow region. The study area which is divided 7 regions from Japan Meteorological Agency(JMA). We analyzed NOAA/AVHRR data by harmonic analysis which is comparison and analysis the center of the each regions. The mean SST varied between $8^{\circ}C$ to $26.0^{\circ}C$. The annual amplitude varied between $7^{\circ}C$ to $24^{\circ}C$. And the annual phase varied between end of July to end of August. Cross-correlation coefficients of mean SST, annual amplitude, and annual phase varied 0.57 to 0.85, -0.04 to 0.81 and 0.35 to 0.80 at all study area, respectively.
민승환 ( Seung Hwan Min ),서영상 ( Young Sang Suh ),박종우 ( Jong Woo Park ),황재동 ( Jae Dong Hwang ) 한국지리정보학회 2013 한국지리정보학회지 Vol.16 No.4
We investigated the occurrence of red tide, harmful algal blooms(HABs), at the end of 14th century until the beginning of 19th century recorded in the Annals of the Joseon Dynasty, which are the authentic and encyclopedic annual records of the Joseon Dynasty of Korea. In total, 81 cases of HABs are recorded in the annals for which authors draw a table and maps. The number of HABs occurrence at each sea is as follows: 68 times at the South Sea; 50 times at the East Sea; and 23 times at the Yellow Sea. A region hit by red tide most frequently was Gyeongsang-do Province (over 80 times), which borders on both the South Sea and the East Sea. HABs written in the annals follow two distinctive occurrence patterns. The first pattern shows red tide started at Gangwon-do Province in March, spread north to Hamgyeongnam-do Province in April, and moved further north to Hamgyeongbuk-do Province in May and June. On the other hand, the second pattern shows red tide occurred in Gyeongsangnam-do Province in August and then expanded north to Gyeongsangbuk-do Province in September. HABs generally happened from March to September, culminating in August. Paralytic shellfish poisoning incidents involving human deaths were reported in Jinhae, Geoje and Tongyeong, occurring February to June. Fish mortality increased throughout Gyeongsang-do Province from July to September. HABs occurred on an extensive scale from 1394 to 1451 and again from 1654 to 1706. HABs also occurred on a lesser scale from 1493 to 1534 and again from 1588 to 1609. In general, vast HABs occurred in odd years (1399, 1403, 1413 and 1681).