한국심해연구해역에서 수온약층 변화에 따른 무기영양염(질소, 인)의 연변화 특성
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Title
- 한국심해연구해역에서 수온약층 변화에 따른 무기영양염(질소, 인)의 연변화 특성
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Alternative Title
- Annual variations of inorganic nitrogen and phosphorus in association with thermocline at KODOS area in the northeast Equatorial Pacific
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Author(s)
- 손승규; 김경홍; 손주원; 김기현
- KIOST Author(s)
- Son, Seung Kyu(손승규); Kim, Kyeong Hong(김경홍)
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Alternative Author(s)
- 손승규; 김경홍; 손주원; 김기현
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Publication Year
- 2002-11-23
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Abstract
- Annual variations of inorganic nitrogen (nitrate+nitrite) and phosphorus (phosphate) in association with thermocline were investigated in the upper 200 m of the water column at Korea Deep Ocean Study (KODOS) area from 1995 to 2001 in the northeast equatorial Pacific. Global climatic disturbances such as El Ni o and La Ni a, should have affected KODOS area during the study period. In 1995∼97 and 2000∼2001, a thermocline where temperatures rapidly decrease with depth, was formed at 50∼70 m water depth. Nutrient depleting areas, specially for nitrate+nitrite and phosphate, or oligotrophic regions were extended down to approximately 50 m depth, which coincided with the surface mixed layer depth. However, in 1998 and 1999, a very fluctuating thermocline was observed at 30∼100 m water depth. In the photic zone (up to 100m depth), depth integrated nitrogen and phosphorus values ranged from 1.04 to 20.27 gN/m2 and from 0.71 to 3.69 gP/m2, respectively. As a result of changes in the water column structures, nutrient concentrations also showed fluctuation parallel to the changes of thermocline in the study area.
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/32375
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Bibliographic Citation
- 한국해양환경공학회 2002년도 추계학술대회 논문집, 2002
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Publisher
- 한국해양환경공학회
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Type
- Conference
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Language
- Korean
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