DOI: 10.1002/2017JG004063
Scopus记录号: 2-s2.0-85043985949
论文题名: No Correlation Between Atmospheric Dust and Surface Ocean Chlorophyll-a in the Oligotrophic Gulf of Aqaba, Northern Red Sea
作者: Torfstein A. ; Kienast S.S.
刊名: Journal of Geophysical Research: Biogeosciences
ISSN: 21698953
出版年: 2018
卷: 123, 期: 2 起始页码: 391
结束页码: 405
语种: 英语
英文关键词: Atmospheric dust
; Chlorophyll-a
; Oligotrophic oceans
; Primary production
; Red Sea
; Time series
英文摘要: High-resolution records of daily surface chlorophyll-a (chl-a) concentrations and hourly atmospheric dust concentrations in the Gulf of Aqaba, northern Red Sea, are compared between 2012 and 2016 in order to examine the interplay between atmospheric dust input and surface productivity in this subtropic, nutrient-poor marine ecosystem. Given that lags of days to weeks may occur between the dust input and phytoplankton response, and because of potential biases associated with differences in the sampling resolution, temporal offsets of 1–10 days between the dust and chl-a are examined using smoothing windows between 3 and 31 days. The results suggest that there is no significant positive (or negative) correlation between dust and chl-a surface concentrations, even when allowing for temporal offsets between the two records. This observation pertains to the seasonal as well as the daily time scale (i.e., abrupt dust storms). It is concluded that the role of atmospheric dust as a control on productivity in the Gulf of Aqaba and possibly other oligotrophic regions may have been previously overestimated. ©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/114560
Appears in Collections: 气候减缓与适应
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作者单位: The Fredy & Nadine Herrmann Institute of Earth Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel; The Interuniversity Institute for Marine Sciences, Eilat, Israel; Department of Oceanography, Dalhousie University, Halifax, NS, Canada
Recommended Citation:
Torfstein A.,Kienast S.S.. No Correlation Between Atmospheric Dust and Surface Ocean Chlorophyll-a in the Oligotrophic Gulf of Aqaba, Northern Red Sea[J]. Journal of Geophysical Research: Biogeosciences,2018-01-01,123(2)