Particle Size Distribution Slope Changes along the Yellow River Delta Observed from Sentinel 3A/B OLCI Images

doi:10.3390/rs16060938

	Particle Size Distribution Slope Changes along the Yellow River Delta Observed from Sentinel 3A/B OLCI Images
	Jin, Song 1; Zou, Tao1 ; Xing, Qianguo1 ; Zheng, Xiangyang 1; Fagherazzi, Sergio 2
发表期刊	REMOTE SENSING
	2024-03-01
卷号	16 期号:6 页码:18
关键词	remote sensing particle size distribution slope Yellow River Delta Sentinel-3A/B OLCI environmental factor
DOI	10.3390/rs16060938
通讯作者	Xing, Qianguo([email protected])
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.
资助机构	National Natural Science Foundation of China
收录类别	SCI
语种	英语
关键词[WOS]	INHERENT OPTICAL-PROPERTIES ; BOHAI SEA ; SPECTRAL ATTENUATION ; REFLECTANCE SPECTRA ; PARTICULATE MATTER ; SUSPENDED SEDIMENT ; OCEAN REFLECTANCE ; MARINE PARTICLES ; LIGHT-SCATTERING ; VARIABILITY
研究领域[WOS]	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:001193419000001
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/36159
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带信息集成与战略规划研究中心
通讯作者	Xing, Qianguo
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 2.Boston Univ, Dept Earth & Environm, Boston, MA 02215 USA
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]. REMOTE SENSING,2024,16(6):18.
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),18.
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):18.