Surface Mixed Layer Profile of Physical and Biogeochemical Variables in the Subpolar North-West and -East Atlantic Ocean: A Data-Model Comparison Study

• 作者: Adebusayo E. Adedapo Francis E. Asuquo Nsikak U. Benson Oladele O. Osibanjo Usoro M. Etesin
• 来源期刊: 海洋科学期刊(英文)
• 学科: 地球科学
• 关键词: Mixed Layer PROFILE PCO2 OCEAN Circulation MODEL MODEL Validation North ATLANTIC OCEAN
• 年，卷（期）: 2015,（1）
• 页码范围: 33-44
• 页数: 12页
• 分类号: P4

摘要

This paper presents a study of physical and biogeochemical variables using numerical model and mixed layer oceanographic data from a 2 - 3 year?in situmeasurements in the Northwestern and Northeastern sites of the Atlantic Ocean. Model outputs are presented and indicated that very good estimates may be obtained. The outputs showed considerable agreement in reproducing seasonal distributions of?pCO2,?pCO2-T,?pCO2-nonT, mixed layer temperature, and chlorophyll-a?in both winter and summer, and therefore provide useful physical and theoretical understanding of their biogeochemistry. The model?pCO2indicated a distinct temporal variability with seasonal changes coinciding with the change in sea surface temperature. It also provides an agreement that there is a strong seasonal cycle of mixed layer parameters filliped by nonthermal and physical factors. As an outgrowth of this work, the?pCO2?model outputs affirm the North Atlantic Ocean capacity as an important oceanographic sink for anthropogenic carbon dioxide.