搜索结果: 1-9 共查到“理学 permeable sediments”相关记录9条 . 查询时间(0.25 秒)
Kilo Nalu:Physical/Biogeochemical Dynamics Above and Within Permeable Sediments
Kilo Nalu Physical/Biogeochemical Dynamics Permeable Sediments
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2015/7/22
The Kilo Nalu Nearshore Reef Observatory is a cabled physical-biogeochemical ocean observing system along the south coast of Oahu, Hawaii. Real-time observations began with the deployment of a range o...
The effect of groundwater advection on salinity in pore waters of permeable sediments
groundwater advection salinity in pore waters permeable sediments
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2014/4/18
Measurements of the upward advection and pore-water profiles of salinitywere made at three coastal settings(the Venice Lagoon, Italy; Jamaica Bay, New York; and Mattituck, New York). Coincident measur...
Denitrification in shallow, sublittoral Gulf of Mexico permeable sediments
Denitrification in shallow sublittoral Gulf Mexico permeable sediments
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2014/4/16
We examined nitrogen cycling over a 1-yr period in shallow, sandy sediments at two contrasting sites near a barrier island in the northeastern Gulf of Mexico, and we provide here the direct determinat...
Rates of carbonate dissolution in permeable sediments estimated from pore-water profiles: The role of sea grasses
carbonate dissolution permeable sediments estimated pore-water profiles sea grasses
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2014/4/21
In this study we estimate sediment carbonate dissolution rates for sandy sea grass sediments on the Bahamas Bank using an inverse pore-water advection/diffusion/reaction model constrained by field obs...
Quantifying biologically and physically induced flow and tracer dynamics in permeable sediments
biologically and physically induced flow tracer dynamics permeable sediments
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2010/1/14
Insight in the biogeochemistry and ecology of sandy sediments crucially depends on a quantitative description of pore water flow and the associated transport of various solutes and particles. We show ...
Bioturbation and bioirrigation extend the open exchange regions in permeable sediments
Bioturbation bioirrigation extend exchange regions
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2014/4/22
Large-scale experimental exclusion of lugworms (Arenicola marina) from 400 m2
intertidal fine sand revealed
significant effects of their bioturbation and bioirrigation on sediment characteristics, b...
Bioirrigation in permeable sediments: Advective pore-water transport induced by burrow ventilation
permeable sediments Advective pore-water transport induced
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2014/4/23
The physical mechanism that drives bioirrigation is strongly dependent on the permeability of the sediment. We
advance two mechanisms, each described by a corresponding microenvironment model. In mud...
Wave tank study of particulate organic matter degradation in permeable sediments
Wave tank permeable sediments
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2014/5/4
We used a wave tank to study the influence of pore-water flow and diffusive transport on the degradation of labile particular organic matter (POM: Ulva lactuca pieces) embedded in permeable sediment. ...
Oxygen dynamics in permeable sediments with wave-driven pore water exchange
Oxygen dynamics permeable sediments wave-driven pore water exchange
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2014/5/14
The effects of advective pore water exchange driven by shallow water waves on the oxygen distribution in a permeable (k = 3.3 x 10-12 to 4.9 x 10-11 m2) natural sediment were studied with a planar oxy...