Inorganic nutrient distributions in association with thermocline at KOMO station in the northeast equatorial Pacific Ocean during 1995-2002 SCOPUS KCI

Title
Inorganic nutrient distributions in association with thermocline at KOMO station in the northeast equatorial Pacific Ocean during 1995-2002
Author(s)
Son, S.-K.; Son, J.-W.; Kim, K.-H.; Kang, J.-H.; Chi, S.-B.; Yoo, C.M.; Park, C.-K.; Kim, W.-S.
KIOST Author(s)
Son, Seung Kyu(손승규)Kim, Kyeong Hong(김경홍)Kang, Jung Hoon(강정훈)Chi, Sang Bum(지상범)Yoo, Chan Min(유찬민)
Publication Year
2004
Abstract
Annual variations of inorganic nutrients such as nitrate(+nitrite), phosphate and silicate in association with thermocline were investigated in the upper 200 m of the water column at KODES Long-term Monitoring (KOMO) station in the northeast equatorial Pacific from 1995 to 2002. Global climatic disturbances such as El Niño and La Niña, should have affected KODES area during the study period. In 1995-97 and 2000-2002, a thermocline where temperatures rapidly decrease with depth, was formed at 50-70 m water depth. Nutrient depletion, specially for nitrate and phosphate, was extended down to approximately 50 m depth, which coincided with the surface mixed layer depth. In 1998 and 1999, however a very fluctuating thermocline was observed at 20-100 m water depth. In the photic zone (up to 100 m depth), depth integration of nitrate, phosphate and silicate ranged from 2.02 to 23.14 gN/m2, from 0.87 to 4.05 gP/m2 and from 35.67 to 176.21 gSi/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.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5347
DOI
10.4217/OPR.2004.26.2.377
Bibliographic Citation
Ocean and Polar Research, v.26, no.2, pp.377 - 384, 2004
Publisher
Korea Ocean Research and Development Institute
Subject
annual variation; inorganic matter; nutrient dynamics; thermocline; water column; Pacific Ocean; Pacific Ocean (Equatorial)
Keywords
KOMO; Nutrient; Pacific; Thermocline
Type
Article
Language
Korean
Document Type
Article
Publisher
Korea Ocean Research and Development Institute
Related Researcher
Research Interests

deep sea mineral resources,deep sea sediments,심해저 광물자원,심해저 퇴적물,심해 환경

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