DOI: 10.1111/gcb.13152
论文题名: Observing climate change trends in ocean biogeochemistry: When and where
作者: Henson S.A. ; Beaulieu C. ; Lampitt R.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2016
卷: 22, 期: 4 起始页码: 1561
结束页码: 1571
语种: 英语
英文关键词: Attribution
; Carbon export
; Chlorophyll concentration
; Fixed point observatories
; Monitoring
; Nitrate
; Small phytoplankton
; Sustained observations
Scopus关键词: biogeochemistry
; chlorophyll
; climate change
; marine ecosystem
; monitoring
; nitrate
; phytoplankton
; trend analysis
; chlorophyll
; nitric acid derivative
; oxygen
; sea water
; chemistry
; climate change
; ecosystem
; pH
; sea
; temperature
; theoretical model
; Chlorophyll
; Climate Change
; Ecosystem
; Hydrogen-Ion Concentration
; Models, Theoretical
; Nitrates
; Oceans and Seas
; Oxygen
; Seawater
; Temperature
英文摘要: Understanding the influence of anthropogenic forcing on the marine biosphere is a high priority. Climate change-driven trends need to be accurately assessed and detected in a timely manner. As part of the effort towards detection of long-term trends, a network of ocean observatories and time series stations provide high quality data for a number of key parameters, such as pH, oxygen concentration or primary production (PP). Here, we use an ensemble of global coupled climate models to assess the temporal and spatial scales over which observations of eight biogeochemically relevant variables must be made to robustly detect a long-term trend. We find that, as a global average, continuous time series are required for between 14 (pH) and 32 (PP) years to distinguish a climate change trend from natural variability. Regional differences are extensive, with low latitudes and the Arctic generally needing shorter time series (<~30 years) to detect trends than other areas. In addition, we quantify the 'footprint' of existing and planned time series stations, that is the area over which a station is representative of a broader region. Footprints are generally largest for pH and sea surface temperature, but nevertheless the existing network of observatories only represents 9-15% of the global ocean surface. Our results present a quantitative framework for assessing the adequacy of current and future ocean observing networks for detection and monitoring of climate change-driven responses in the marine ecosystem. © 2016 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61443
Appears in Collections: 影响、适应和脆弱性
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作者单位: National Oceanography Centre, European Way, Southampton, United Kingdom; Ocean and Earth Sciences, University of Southampton, European Way, Southampton, United Kingdom
Recommended Citation:
Henson S.A.,Beaulieu C.,Lampitt R.. Observing climate change trends in ocean biogeochemistry: When and where[J]. Global Change Biology,2016-01-01,22(4)