DOI: 10.1002/grl.50342
论文题名: A new constraint on global air-sea CO2 fluxes using bottle carbon data
作者: Sasse T.P. ; McNeil B.I. ; Abramowitz G.
刊名: Geophysical Research Letters
ISSN: 0094-9154
EISSN: 1944-8885
出版年: 2013
卷: 40, 期: 8 起始页码: 1594
结束页码: 1599
语种: 英语
英文关键词: Biogeochemistry
; Ocean carbon uptake
; Oceanography
Scopus关键词: Carbon uptake
; Flux distributions
; Hydrographic data
; Measurements of
; Northern Hemispheres
; Ocean surfaces
; Partial pressure of co
; Southern Hemisphere
; Biogeochemistry
; Bottles
; Climatology
; Digital storage
; Oceanography
; Carbon dioxide
; air-sea interaction
; carbon dioxide
; carbon flux
; climate change
; data acquisition
; global climate
; polar region
; Southern Hemisphere
英文摘要: We develop a new observationally derived monthly ocean surface climatology for the partial pressure of CO2 (pCO2) that allows an independent data-based constraint on contemporary air-sea CO2 fluxes. Our approach uses a neural network, trained on ~17,800 bottle-derived measurements of pCO2, to diagnose monthly pCO2 levels from standard ocean hydrographic data. Although the pattern of contemporary air-sea CO2 fluxes is generally consistent with the independent underway pCO2 data network, we find a strong shift in the magnitude of oceanic sources and sinks of CO2. In particular, we find a contemporary Southern Hemisphere oceanic CO2 uptake of 0.93 PgC/year, driven by a prominent CO2 sink in the subpolar region (25°S-60°S), that is five times the magnitude of the Northern Hemisphere oceanic sink (0.18 PgC/year). Globally, our results suggest a net open-ocean CO2 sink of 1.55 ± 0.32 PgC/year for the nominal year of 2000. Key Points New data-based approach to diagnose monthly surface ocean p CO2 distributions Independent constraint on global air-sea CO2 flux distribution and magnitude Southern Hemisphere carbon uptake is five times the magnitude of the Northern Hemisphere. ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84877947896&doi=10.1002%2fgrl.50342&partnerID=40&md5=e6503f6c76fcf624b34fabaffcba9113
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6418
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Climate Change Research Centre, Faculty of Science, University of New South Wales, Sydney, NSW 2052, Australia
Recommended Citation:
Sasse T.P.,McNeil B.I.,Abramowitz G.. A new constraint on global air-sea CO2 fluxes using bottle carbon data[J]. Geophysical Research Letters,2013-01-01,40(8).