气候变化领域集成服务门户(CCPortal): Particle Size Distribution Slope Changes along the Yellow River Delta Observed from Sentinel 3A/B OLCI Images

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DOI	10.3390/rs16060938
	Particle Size Distribution Slope Changes along the Yellow River Delta Observed from Sentinel 3A/B OLCI Images
	Jin, Song; Zou, Tao; Xing, Qianguo; Zheng, Xiangyang; Fagherazzi, Sergio
发表日期	2024
EISSN	2072-4292
起始页码	16
结束页码	6
卷号	16 期号:6
英文摘要	Quantitative estimates of particle size in estuaries and shelf areas are important to understand ocean ecology and biogeochemistry. Particle size can be characterized qualitatively from satellite observations of ocean color. As a typical marginal sea, the Yellow River Delta (YRD) with the Bohai Sea experiences a complex hydrodynamic environment. Here, we attempt to quantify the particle size distribution (PSD) slope (xi) based on its relationship with the particle backscattering exponent from Sentinel-3A/B OLCI. The PSD slope, xi displays temporal and spatial variability in the YRD with the Bohai Sea. Its value varies between 3 and 4, and typically exceeds 5 in offshore areas. The lowest value of xi occurs in the winter, indicating the presence of fine inorganic particles in the water, while high values are attained in the spring, when phytoplankton blooms increase the particle size. xi decreases near the river mouth because of the large sediment-laden discharge debouching into the sea. We detected a slight increase in xi when turbid waters were present in the period 2016-2022. Environmental factors, such as sea surface temperature, sea surface wave height, and wind, may control particle size and xi in the long term. Inorganic suspended particle matter is derived along the YRD using the magnitude of xi. The mean inorganic suspended particle matter area in winter approaches 23,900 km(2) when xi < 4.6. This study thoroughly characterizes variations in xi in the YRD with the Bohai Sea and clarifies the contributions of driving factors from human activities and climate change.
英文关键词	remote sensing; particle size distribution slope; Yellow River Delta; Sentinel-3A/B OLCI; environmental factor
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:001193419000001
来源期刊	REMOTE SENSING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/300828
作者单位	Chinese Academy of Sciences; Yantai Institute of Coastal Zone Research, CAS; Boston University
推荐引用方式 GB/T 7714	Jin, Song,Zou, Tao,Xing, Qianguo,et al. Particle Size Distribution Slope Changes along the Yellow River Delta Observed from Sentinel 3A/B OLCI Images[J],2024,16(6).
APA	Jin, Song,Zou, Tao,Xing, Qianguo,Zheng, Xiangyang,&Fagherazzi, Sergio.(2024).Particle Size Distribution Slope Changes along the Yellow River Delta Observed from Sentinel 3A/B OLCI Images.REMOTE SENSING,16(6).
MLA	Jin, Song,et al."Particle Size Distribution Slope Changes along the Yellow River Delta Observed from Sentinel 3A/B OLCI Images".REMOTE SENSING 16.6(2024).