한국심해연구해역에서 수온약층 변화에 따른 무기영양염(질소, 인)의 연변화 특성

Title
한국심해연구해역에서 수온약층 변화에 따른 무기영양염(질소, 인)의 연변화 특성
Alternative Title
Annual variations of inorganic nitrogen and phosphorus in association with thermocline at KODOS area in the northeast Equatorial Pacific
Author(s)
손승규; 김경홍; 손주원; 김기현
KIOST Author(s)
Son, Seung Kyu(손승규)Kim, Kyeong Hong(김경홍)
Publication Year
2002-11-23
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.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/32375
Bibliographic Citation
한국해양환경공학회 2002년도 추계학술대회 논문집, 2002
Publisher
한국해양환경공학회
Type
Conference
Language
Korean
Publisher
한국해양환경공학회
Related Researcher
Research Interests

Seawater Chemistry,Geochemistry,해수화학,지화학

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