气候变化领域集成服务门户(CCPortal): Assessing the Impact of Various Controlling Factors on Chlorophyll Concentration in the Arabian Sea Using Remotely Sensed Observations

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DOI	10.1007/s41208-024-00676-4
	Assessing the Impact of Various Controlling Factors on Chlorophyll Concentration in the Arabian Sea Using Remotely Sensed Observations
	Budakoti, Sachin; Pallavi, Padmanav; Horam, Chanthingla
发表日期	2024
ISSN	0212-5919
EISSN	2366-1674
英文摘要	Present work examines a long-term trend (2003-2020) of the chlorophyll-a concentration and impact of various controlling factors on it in the Arabian Sea using robust non-parametric Man Kendall analysis, two-way ANOVA statistical test, and two-stage least square regression technique. Climatological means and interannual variations of chlorophyll-a (Chl_a) concentration and other controlling factors viz. Sea surface temperature (SST), Aerosol optical depth (AOD) and sea surface wind (SSW) have been analysed. From the seasonal variation of Chl_a and AOD it is observe that the highest Chl_a (1.4 mg/m3) is observed during July, August, September and October, and the highest AOD (0.8) is observed during June, July, August and September over the Arabian Sea. There was a two-month delay in the peak concentration of Chl_a/AOD, SSW; however, one month delay is observed in the peak concentration of Chl_a/SST in the Arabian Sea. A long-term trend of Chl_a concentration and SSW shows a decreasing trend, whereas SST and AOD show an increasing trend in the Arabian Sea. From ANOVA and two-stage least square regression it is observed that SST plays a significant role in influencing the decreasing trend of Chl_a in comparison to the other two controlling factors (AOD and SSW). A rise of 1% in SST results into a decrease of 0.138 percentage point in Chl_a concentration that is statistically significant at 1% significance level. The present work helps to understand the impact of various controlling factors on the ocean's primary productivity and the effect of climate change on the marine ecosystem.
英文关键词	ANOVA; Arabian Sea; Chlorophyll-a; Man Kendall; Primary productivity
语种	英语
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Marine & Freshwater Biology ; Oceanography
WOS记录号	WOS:001184326600002
来源期刊	THALASSAS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/290346
作者单位	Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Bombay
推荐引用方式 GB/T 7714	Budakoti, Sachin,Pallavi, Padmanav,Horam, Chanthingla. Assessing the Impact of Various Controlling Factors on Chlorophyll Concentration in the Arabian Sea Using Remotely Sensed Observations[J],2024.
APA	Budakoti, Sachin,Pallavi, Padmanav,&Horam, Chanthingla.(2024).Assessing the Impact of Various Controlling Factors on Chlorophyll Concentration in the Arabian Sea Using Remotely Sensed Observations.THALASSAS.
MLA	Budakoti, Sachin,et al."Assessing the Impact of Various Controlling Factors on Chlorophyll Concentration in the Arabian Sea Using Remotely Sensed Observations".THALASSAS (2024).