Studies of hydrophysical processes during monitoring of the anthropogenic impact on coastal basins using the example of Mamala Bay of Oahu Island in Hawaii

Environmental Properties of Coastal Waters in Mamala Bay, Oahu, Hawaii, at the Future Site of a Seawater Air Conditioning Outfall

“…Vertical displacements up to 200 m have been observed near the Kaena Ridge location (Nash et al, 2006). The tidal variability in temperature and other parameters observed in this study is comparable to values in the literature (Petrenko et al, 2000;Eich et al, 2004;Bondur et al, 2007), and corresponds to vertical displacements of isotherms of 80-90 m ( Figure 5). The bathymetric steering of currents in the channel may amplify this variability near the benthos.…”

“…In deployment one, water depth ranged from 144.16-144.96 m. In deployment two, depth ranged from 139.98-140.90 m. Tides in this region are mixed semidiurnal with maximum amplitude of approximately 0.9 m (Bondur et al, 2007). The cross-shore currents described previously advected pulses of cooler, denser water upslope, which drove tidal variability in parameters associated with density.…”

Generation of inertia-gravity waves on the island shelf

“…Complex investigations of the anthropogenic impact caused by deep wastewater discharges on eco systems of the coastal water area were carried out at the Hawaii shelf in the basin of Mamala Bay (Oahu Island, United States) during several years (2002)(2003)(2004) [3][4][5][6][7]. In the course of those experiments, current charac teristics were measured for a long time using ADP bot tom acoustic Doppler current profilers (three rays) and marine water temperature profilers using moored thermistor strings [2][3][4].…”

“…Anomalous characteristics of iner tial oscillations were observed-an unusual shape of hodographs with frequently occurring cases of left rotation of inertial currents and significant changes in the oscillation period. These anomalies are related to currents in the regions, strong and inhomogeneous in space and time; the currents are described in [3][4][5][6] and, briefly, in Section 1. Section 2 is devoted to an analysis of experimental data; Section 3 is devoted to a discussion of results concerning the causes of IGW excitation in 2003 and 2004, when the measurements were carried out.…”

Comprehensive Ground-Space Monitoring of Anthropogenic Impact on Russian Black Sea Coastal Water Areas

“…The most important feature of those studies was the revealed effect of generation and propagation of short-period internal waves causing surface wave modulation, which had been registered by satellite imagery [1,9]. This was proved during the large-scale modeling in a hydrodynamic basin [10], as well as during various satellite and sea truth data processing [2,4,8]. In the framework of this effort, the abovementioned research has been continued and further developed, including due to the development of new methods and technologies, and application of the created research prototype of a ground-space monitoring system.…”