Importance of sea ice permeability
Witryna11 kwi 2024 · 1 Introduction. Antarctic sea ice plays a significant role in the global climate system (e.g., Christie et al., 2024; Fogwill et al., 2024; Ohshima et al., 2013; Riihelä et al., 2024) and local ecosystem (e.g., Massom & Stammerjohn, 2010).Compared with the striking decline of Arctic sea ice in the past 40 years (Meier … Witrynaand biological importance of sea ice is largely derived from its porous composite structure [Thomas and Dieckmann, 2003; Weeks and Ackley, 1986]. Pivotal to …
Importance of sea ice permeability
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Witryna14 sty 2011 · Sea ice that retains more salt will also retain more of the dissolved constituents of the source water, from carbon dioxide and other greenhouse gases to iron and other nutrients essential to primary production . Their retention, alteration, and eventual release determine the biogeochemical imprint of sea ice on the surface … Witryna11 kwi 2024 · Arctic sea ice is an important temporal sink and means of transport for microplastic. Article. ... We measured the permeability of sea ice in both field and laboratory experiments. In the field ...
WitrynaEPS in ice (9) and the importance of sea ice in a global context. Earlier, we suggested that the presence of EPS, which dominate (9, 15) the millimolar amounts of organic carbon measured in sea ice (16), may modify pore space or interfere with salt expulsion from growing ice, leading to higher ice porosities and salinities (9, 10). WitrynaDepending on the ice permeability (determined by temperature, salinity and gas content), this brine can drain from the ice, taking other sea ice constituents with it. Thus, ... Evidence is mounting that sea ice is also important for regulating, and possibly driving, chemical exchanges be-tween the ocean and atmosphere in polar regions …
Witryna13 kwi 2024 · One of the main results is that the permeability of sea ice and average interdendritic spacing of ice crystals in the two-phase layer increase as the noise … WitrynaFor older sea ice containing wider secondary brine channels, for granular sea ice, as well as for the full thickness bulk permeability, other thresholds may apply. 1 Introduction Sea ice is a porous medium that covers, on average, 5 to 7 percent of the earth’s oceans. To understand the role of sea ice in the
Witryna15 lut 2024 · The Gulf of Mexico is a widely explored and producing region for offshore oil and gas resources, with significant submarine methane hydrates. Estimates of hydrate saturation and distribution rely on drilling expeditions and seismic surveys that tend to provide either large-scale estimates or highly localized well data. In this study, hydrate …
WitrynaDespite the importance of sea-ice permeability in controlling mass and heat fluxes through the ice cover, few measurements of ice permeability (as a function of … dailymotion bon voyage season 3Witryna15 mar 2024 · sea ice, frozen seawater in the Arctic Ocean and its adjacent seas as far south as China and Japan and in the Southern Ocean and its adjacent seas surrounding Antarctica. Most sea ice … dailymotion bonanza season 5Witrynaof sea ice is essential for sustaining life in this extreme environment (2,3). Furthermore, through its control of the presence and nature of liquid water at the ice surface, k(φ) is … dailymotion borutoWitryna7 maj 2024 · The permeability of sea ice can strongly affect the dissipation of wave energy into the ice pack. Sea-ice permeability is known to be impacted by the brine volume fraction and the blockage of flow pathways by the freezing of infiltrating lower salinity water. Here we investigate another process impacting sea-ice permeability, … dailymotion boruto 280Witryna8 wrz 2024 · The permeability also affects the transport of particulate and dissolved matter through the ice, which influences nutrient supply to biological sea-ice … dailymotion boruto 286Witrynabudget, ice cores, ice thickness, landfast/shorefast ice, permeability, remote sensing, sampling 40 design, sea ice biota, ship-based observations, snow cover, solar radiation, thermal/electrical ... 120 has brought increasing recognition of the importance of sea ice as a social-environmental system, i.e., interconnected geophysical features ... dailymotion bottom breakWitryna28 cze 2006 · Abstract. In a field study in the Arctic, ejection of dense, saline plumes was observed 1 m below warm land-fast first-year sea ice, under conditions where the heat balance at the ice-ocean ... dailymotion boruto 255