期刊
ATMOSPHERE-OCEAN
卷 53, 期 3, 页码 332-350出版社
CMOS-SCMO
DOI: 10.1080/07055900.2015.1049112
关键词
open ocean; numerical; modelling; biogeochemistry; climate processes
资金
- Merit Allocation Scheme on the National Computational Infrastructure facility at the Australia National University
- Australian Research Council's Future Fellowship programme [FT100100443]
- University of New South Wales through a University International Postgraduate Award
- ARC Centre of Excellence for Climate Science
- Directorate For Geosciences [1416700] Funding Source: National Science Foundation
- Division Of Ocean Sciences [1204204] Funding Source: National Science Foundation
Marine calcifiers as a plankton functional type (PFT) are a crucial part of the global carbon cycle, being responsible for much of the carbon export to the deep ocean entering via biological pathways. Deep ocean carbon export through calcifiers is controlled by physiological, ecological, and biogeochemical factors. This paper describes the implementation of a calcifying phytoplankton PFT in the University of Victoria Earth System Climate Model, version 2.9 (UVic ESCM), and mechanistic improvements to the representation of model carbon export (a full calcite tracer, carbonate chemistry dependent calcite dissolution rates, and a ballasting scheme). An iterative method for stabilizing and tuning the biogeochemistry is furthermore described. The UVic ESCM now fills a niche in Earth system modelling that was previously unoccupied in that it is relatively inexpensive to run, yet resolves the complete Earth system carbon cycle including prognostic calcium carbonate and a separate phytoplankton calcifier PFT. The model is now well suited to testing feedbacks between the carbonate and carbon cycles and the climate system as transient simulations. The modifications described improve the UVic ESCM's mechanistic realism without compromising performance with respect to observed carbon and nutrient fluxes. Primary production, export production, particulate organic carbon, and calcite fluxes all fall within independently observed estimates.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据