BROWSE

Related Scientist

CCP's photo.

CCP
기후물리 연구단
more info

ITEM VIEW & DOWNLOAD

Stable Carbon Isotopes Suggest Large Terrestrial Carbon Inputs to the Global Ocean

Cited 0 time in webofscience Cited 0 time in scopus
25 Viewed 0 Downloaded
Title
Stable Carbon Isotopes Suggest Large Terrestrial Carbon Inputs to the Global Ocean
Author(s)
Eun Young Kwon; Tim DeVries; Eric D. Galbraith; Jeomshik Hwang; Guebuem Kim; Axel Timmermann
Publication Date
2021-04
Journal
Global Biogeochemical Cycles, v.35, no.4
Publisher
Blackwell Publishing Ltd
Abstract
© 2021. The Authors.The transport of carbon from land to ocean, via rivers, groundwater, and aerosols, is an important component of the global carbon cycle that must be known to accurately assess anthropogenic CO2 storage on land and in the ocean. Current global carbon cycle budgets have adopted terrestrial carbon inputs to the ocean ranging from 0.5 GtC/yr to 0.9 GtC/yr, derived mainly from estimates of riverine fluxes. However, these budgets ignore the terrestrial carbon inputs from coastal ecosystems and through submarine groundwater discharge (collectively referred to as coastal margin inputs in this study) due to difficulties in making global assessments. Using a numerical model and globally distributed ocean observations of stable carbon isotopes, we estimate terrestrial carbon inputs to the ocean at 1.4 ± 0.5 GtC/yr, with 95% of the coastal margin inputs (0.8 ± 0.5 GtC/yr) occurring in the Pacific and Indian Oceans. This terrestrial carbon flux is largely balanced by an efflux to the atmosphere of 1.2 ± 0.5 GtC/yr, 40% of which occurs in poorly monitored coastal regions and may have been overlooked in previous observation-based global estimates. Our results suggest more dynamic cycling of carbon in the land-ocean transition zone than previously thought, and that rivers may not be the only important pathway for terrestrial carbon to the ocean.
URI
https://pr.ibs.re.kr/handle/8788114/9923
DOI
10.1029/2020GB006684
ISSN
0886-6236
Appears in Collections:
Center for Climate Physics(기후물리 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse