DOI: 10.1029/2017JG004281
Scopus记录号: 2-s2.0-85046816661
论文题名: Revisiting the Estimate of the North Sea Air-Sea Flux of CO2 in 2001/2002: The Dominant Role of Different Wind Data Products
作者: Meyer M. ; Pätsch J. ; Geyer B. ; Thomas H.
刊名: Journal of Geophysical Research: Biogeosciences
ISSN: 21698953
出版年: 2018
卷: 123, 期: 5 起始页码: 1511
结束页码: 1525
语种: 英语
英文关键词: CO2 air-sea flux
; new coastal wind product
; North Sea
Scopus关键词: air-sea interaction
; annual cycle
; carbon dioxide
; climate modeling
; computer simulation
; estimation method
; regional climate
; seasonal variation
; shelf sea
; Atlantic Ocean
; Belgium
; German Bight
; Germany
; Helgoland
; North Frisian Islands
; North Sea
; North Sea
; Schleswig-Holstein
英文摘要: For the North Sea, a semienclosed shelf sea in the northeastern North Atlantic, the seasonal and annual CO2 air-sea fluxes (ASF) had been estimated for 2001 and 2002 in earlier work. The underlying observations, ΔpCO2, salinity, and temperature had been combined with 6-hourly wind data derived from ERA40 reanalysis. In order to assess the impact of different wind data products on the computation of CO2 ASF, we compared ERA40 wind data with coastDat data derived from the nonhydrostatic regional climate model COSMO-CLM. From the four observational months September, November, February, and May all but the May data show higher wind speeds for coastDat than for ERA40, especially off the Norwegian, UK, and continental coasts. Largest differences occur in the northern offshore areas. The comparison with observed wind data supports this feature generally: At Helgoland, an island in the German Bight, and at the Belgium pile “Westhinder” the ERA40 data underestimate both, the coastDat data and the observations. Wind observations for two Norwegian North Sea platforms were available: At the northern station “Troll” off the Norwegian coast the coastDat data overestimate the observations in winter. At “Ekofisk” in the central North Sea the ERA40 data fit the observations well, while the coastDat data slightly overestimate the observational data in all months but in May. The corresponding CO2 ASF estimates show strongest deviations off the Norwegian coast. Using different bulk formulas for determining the net annual ASF resulted in differences due to different wind products of up to 34%. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114034
Appears in Collections: 气候减缓与适应
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作者单位: Institute of Oceanography, University of Hamburg, Hamburg, Germany; Institute of Coastal Research, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany; Department of Oceanography, Dalhousie University, Halifax, NS, Canada
Recommended Citation:
Meyer M.,Pätsch J.,Geyer B.,et al. Revisiting the Estimate of the North Sea Air-Sea Flux of CO2 in 2001/2002: The Dominant Role of Different Wind Data Products[J]. Journal of Geophysical Research: Biogeosciences,2018-01-01,123(5)