Seasonal variations in the aragonite saturation state in the upper open-ocean waters of the North Pacific Ocean

被引：2

作者：

Kim, Tae-Wook ^{[1
]}

Park, Geun-Ha ^{[2
]}

Kim, Dongseon ^{[1
]}

Lee, Kitack ^{[3
]}

Feely, Richard A. ^{[4
]}

Millero, Frank J. ^{[5
]}

机构：

[1] Korea Inst Ocean Sci & Technol, Marine Chem & Geochem Div, Ansan, South Korea

[2] Korea Inst Ocean Sci & Technol, East Sea Res Inst, Uljin, South Korea

[3] Pohang Univ Sci & Technol, Sch Environm Sci & Engn, Pohang, South Korea

[4] NOAA, Pacific Marine Environm Lab, Seattle, WA 98115 USA

[5] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Miami, FL 33149 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2015年 / 42卷 / 11期

基金：

美国国家科学基金会; 美国海洋和大气管理局; 新加坡国家研究基金会;

关键词：

North Pacific Ocean; aragonite saturation state; ocean acidification; fossil fuel CO2; mutiple linear regression; CALIFORNIA CURRENT SYSTEM; EASTERN TROPICAL PACIFIC; TOTAL INORGANIC CARBON; DISSOCIATION-CONSTANTS; ANTHROPOGENIC CO2; SURFACE OCEAN; ACIDIFICATION; SEAWATER; ACID; VARIABILITY;

D O I：

10.1002/2015GL063602

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Seasonal variability of the aragonite saturation state ((AR)) in the upper (50m and 100m depths) North Pacific Ocean (NPO) was investigated using multiple linear regression (MLR). The MLR algorithm derived from a high-quality carbon data set accurately predicted the (AR) of evaluation data sets (three time series stations and P02 section) with acceptable uncertainty (<0.1(AR)). The algorithm was combined with seasonal climatology data, and the estimated (AR) varied in the range of 0.4-0.6 in the midlatitude western NPO, with the largest variation found for the tropical eastern NPO. These marked variations were largely controlled by seasonal changes in vertical mixing and thermocline depth, both of which determine the degree of entrainment of CO2-rich corrosive waters from deeper depths. Our MLR-based subsurface (AR) climatology is complementary to surface climatology based on pCO(2) measurements.

引用

页码：4498 / 4506

页数：9

共 46 条

[1] Robust empirical relationships for estimating the carbonate system in the southern California Current System and application to CalCOFI hydrographic cruise data (2005-2011) [J].