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沿着韩国南海岸的卫星衍生水质指标的时空结构

Hae-Cheol Kim¹, Seunghyun Son², Chun Ok Jo³

¹SAIC at NOAA/NWS/NCEP/EMC, College Park, MD, USA.

Environment international

|July 10, 2023

概括

这项研究分析了9年的海面温度 (SST),a (Chl-a) 和总悬浮固体 (TSS) 数据. 研究结果揭示了朝鲜南海岸沿线这些关键的海洋学变量中明显的季节性模式和空间变化.

科学领域:

海洋科学海洋科学
海洋学海洋学海洋学
遥感是一种远程传感.

背景情况:

海洋表面温度 (SST),a (Chl-a) 和悬浮固体总量 (TSS) 是海洋学条件的关键指标.
了解它们的时间和空间动态对于沿海生态系统管理至关重要.
卫星遥感提供了有价值的数据,用于在大面积上监测这些参数.

研究的目的:

分析SST,Chl-a和TSS数据的9年时间序列结构.
调查这些变量的季节性和空间异质性沿着韩国南海岸 (KSC).
为了确定SST,Chl-a和TSS之间的关系和相位滞后.

主要方法:

利用来自可见红外成像放射仪套件 (VIIRS) 的9年时间序列数据.
分析了海面温度 (SST),叶绿素a (Chl-a) 和悬浮固体总量 (TSS) 的数据.
应用时间序列分析以确定季节性,空间模式和阶段关系.

主要成果:

在KSC中观察到SST,Chl-a和TSS的强烈季节性.
SST与Chl-a相一致,但与TSS相差六个月.
在Chl-a和TSS之间存在显著的反向光谱功率和六个月的相位滞后.
发现了空间异质性,Chl-a受当地水文和土地利用的影响,TSS受潮和地形的影响.

结论:

SST,Chl-a和TSS的独特季节性和空间模式是由海洋生物地球化学和物理海洋学过程的组合驱动的.
-a季节性与受到SST影响的初级生产保持一致,而TSS变异与物理混合和分层有关.
在Chl-a和TSS中,东向西的梯度突出显示了当地环境因素和人类活动对沿海生态系统的影响.

关键词:

叶绿素a 是一种跨光谱分析跨光谱分析主要组件分析主要组件分析海洋表面温度海洋表面温度总悬浮固体总量悬浮固体总量第七章七十七章七十七章

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