Estuarine Exchange Flow Quantified with Isohaline Coordinates: Contrasting Long and Short Estuaries
Estuarine Exchange Flow Quantified with Isohaline Coordinates: Contrasting Long and Short Estuaries
复制标题
用等盐线坐标量化河口交换流量：对比长河口和短河口
DOI：
10.1175/jpo-d-11-086.1
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发表时间：
2012
影响因子：
3.5
通讯作者：
J. Lerczak
中科院分区：
文献类型：
--
作者：
Shih;W. Geyer;D. Ralston;J. Lerczak
摘要采用等盐坐标分析方法，利用经过验证的数值模型，比较了两条河口--长哈德逊河和短梅里马克河的交换流量。等盐线分析平均通量在盐度空间，而不是在物理空间，产生的等盐线交换流，结合潮下和潮汐通量，并精确地满足努森关系。等盐线分析可以一致地应用于潮下和潮汐为主的河口。在哈德逊，等盐交换流与欧拉分析的结果相似，传统的河口理论可以用来量化盐输运的基础上与斜压压力梯度的标度。在梅里马克，等盐交换量远大于欧拉量，表明潮汐盐通量占主导地位。交换流量不与斜压压力梯度成比例，而是与潮气量通量成比例。T...
AbstractIsohaline coordinate analysis is used to compare the exchange flow in two contrasting estuaries, the long (with respect to tidal excursion) Hudson River and the short Merrimack River, using validated numerical models. The isohaline analysis averages fluxes in salinity space rather than in physical space, yielding the isohaline exchange flow that incorporates both subtidal and tidal fluxes and precisely satisfies the Knudsen relation. The isohaline analysis can be consistently applied to both subtidally and tidally dominated estuaries. In the Hudson, the isohaline exchange flow is similar to results from the Eulerian analysis, and the conventional estuarine theory can be used to quantify the salt transport based on scaling with the baroclinic pressure gradient. In the Merrimack, the isohaline exchange flow is much larger than the Eulerian quantity, indicating the dominance of tidal salt flux. The exchange flow does not scale with the baroclinic pressure gradient but rather with tidal volume flux. T...
影响因子：
3.5
作者：
Lerczak JA;Geyer WR;Ralston DK
通讯作者：
Ralston DK