| DOI: | 10.1016/j.marpolbul.2014.03.007
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| Scopus记录号: | 2-s2.0-84899937664
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| 论文题名: | Confidence rating for eutrophication assessments |
| 作者: | Brockmann U.H.; Topcu D.H.
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| 刊名: | Marine Pollution Bulletin
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| ISSN: | 0025-326X
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| EISSN: | 1879-3363
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| 出版年: | 2014
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| 卷: | 82, 期:2018-01-02 | | 起始页码: | 127
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| 结束页码: | 136
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| 语种: | 英语
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| 英文关键词: | Confidence rating
; Eutrophication assessments
; German Bight/North Sea
; Representativeness
; Total nitrogen
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| Scopus关键词: | Eutrophication
; Rating
; Eutrophication assessment
; German Bight
; Representative sampling
; Representativeness
; Space and time
; Statistical confidence
; Total nitrogen
; Vertical profile
; Sampling
; nitrogen
; assessment method
; concentration (composition)
; confidence interval
; eutrophication
; nitrogen
; vertical profile
; article
; coastal waters
; concentration (parameters)
; confidence interval
; environmental impact assessment
; eutrophication
; growing season
; hydrodynamics
; North Sea
; salinity
; seasonal variation
; spatiotemporal analysis
; environmental monitoring
; procedures
; Atlantic Ocean
; German Bight
; North Sea
; Environmental Monitoring
; Eutrophication
; North Sea
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| Scopus学科分类: | Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
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| 英文摘要: | Confidence of monitoring data is dependent on their variability and representativeness of sampling in space and time. Whereas variability can be assessed as statistical confidence limits, representative sampling is related to equidistant sampling, considering gradients or changing rates at sampling gaps. By the proposed method both aspects are combined, resulting in balanced results for examples of total nitrogen concentrations in the German Bight/North Sea. For assessing sampling representativeness surface areas, vertical profiles and time periods are divided into regular sections for which individually the representativeness is calculated. The sums correspond to the overall representativeness of sampling in the defined area/time period. Effects of not sampled sections are estimated along parallel rows by reducing their confidence, considering their distances to next sampled sections and the interrupted gradients/changing rates. Confidence rating of time sections is based on maximum differences of sampling rates at regular time steps and related means of concentrations. © 2014 Elsevier Ltd. |
| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/85521
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| Appears in Collections: | 过去全球变化的重建
全球变化的国际研究计划
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作者单位: | Hamburg University, Institute for Geology, Dept. Biogeochemistry and Marine Chemistry, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
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| Recommended Citation: | |
Brockmann U.H.,Topcu D.H.. Confidence rating for eutrophication assessments[J]. Marine Pollution Bulletin,2014-01-01,82(2018-01-02)
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