DOI: 10.1016/j.jag.2016.01.012
Scopus记录号: 2-s2.0-85016149067
论文题名: Temporal analysis of remotely sensed turbidity in a coastal archipelago
作者: Suominen T ; , Tolvanen H
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2016
卷: 49 起始页码: 188
结束页码: 199
语种: 英语
英文关键词: Archipelago
; Coast
; Ocean colour
; Remote sensing
; Temporal averaging
; The Baltic Sea
; Time series
; Turbidity
Scopus关键词: archipelago
; coastal zone
; data set
; MERIS
; ocean color
; remote sensing
; temporal analysis
; time series analysis
; turbidity
; Atlantic Ocean
; Baltic Sea
英文摘要: A topographically fragmental archipelago with dynamic waters set the preconditions for assessing coherent remotely sensed information. We generated a turbidity dataset for an archipelago coast in the Baltic Sea from MERIS data (FSG L1b), using CoastColour L1P, L2R and L2W processors. We excluded land and mixed pixels by masking the imagery with accurate (1:10 000) shoreline data. Using temporal linear averaging (TLA), we produced satellite-imagery datasets applicable to temporal composites for the summer seasons of three years. The turbidity assessments and temporally averaged data were compared to in situ observations obtained with coastal monitoring programs. The ability of TLA to estimate missing pixel values was further assessed by cross-validation with the leave-one-out method. The correspondence between L2W turbidity and in situ observations was good (r = 0.89), and even after applying TLA the correspondence remained acceptable (r = 0.78). The datasets revealed spatially divergent temporal water characteristics, which may be relevant to the management, design of monitoring and habitat models. Monitoring observations may be spatially biased if the temporal succession of water properties is not taken into account in coastal areas with anisotropic dispersion of waters and asynchronous annual cycles. Accordingly, areas of varying turbidity may offer a different habitat for aquatic biota than areas of static turbidity, even though they may appear similar if water properties are measured for short annual periods. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80076
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Geography and Geology, University of Turku, Turku, Finland
Recommended Citation:
Suominen T,, Tolvanen H. Temporal analysis of remotely sensed turbidity in a coastal archipelago[J]. International Journal of Applied Earth Observation and Geoinformation,2016-01-01,49