搜索结果: 1-15 共查到“理学 Diffusivity”相关记录18条 . 查询时间(0.108 秒)
Evaluation of soil thermal diffusivity algorithms at two equatorial sites in West Africa
Thermal diffusivity Soil temperature Soil moisture content West Africa
2015/8/18
This study presents comparisons between six algorithms used in the calculation of apparent thermal diffusivity (Kh) of the topsoil during measurement campaigns conducted at two equatorial sites. It fu...
Three‐dimensional earthquake sequence simulations with evolving temperature and pore pressure due to shear heating: Effect of heterogeneous hydraulic diffusivity
Three‐dimensional earthquake sequence simulations evolving temperature pore pressure due to shear heating:heterogeneous hydraulic diffusivity
2014/4/8
A new methodology for three‐dimensional (3‐D) simulations of earthquake sequences is presented that accounts not only for inertial effects during seismic events but also for shear‐induced temperature ...
Determination of Aquifer Diffusivity from Annual Fluctuations of Ground Water Levels
Aquifer Diffusivity Annual Fluctuations Ground Water Levels
2009/10/29
Annual fluctuations of ground water levels of an aquifer are described as a
consequence of water recharging periodically over a part of the aquifer. These
areas can be depicted by drawing maps showi...
On the Diffusivity of Turbulent Flow.
Vertical Eddy Diffusivity of Waters in the Baltic Sea
Vertical Eddy Diffusivity Waters Baltic Sea
2009/6/18
Vertical Eddy Diffusivity of Waters in the Baltic Sea
On the Sensitivity of Thermocline Depth and Meridional Heat Transport to Vertical Diffusivity in OGCMS
Thermocline Depth ocean general circulation models Vertical Diffusivity Meridional Heat Transport
2008/12/10
Aimed at a further understanding of the role of vertical diffusivity in determining the vertical structure of the thermocline circulation and meridional heat transport in ocean general circulation mod...
Turbulent vertical diffusivity in the sub-tropical stratosphere
Turbulent vertical diffusivity sub-tropical stratosphere
2008/10/29
Vertical (cross-isentropic) mixing is produced by small-scale turbulent processes which are still poorly understood and paramaterized in numerical models. In this work we provide estimates of local eq...
Deep Pacific Circulation Controlled by Vertical Diffusivity at the Lower Thermocline Depths
Deep Pacific Circulation Controlled Vertical Diffusivity Lower Thermocline Depths
2008/7/3
Deep Pacific circulation is investigated by using a World Ocean model with depth-dependent vertical diffusivity. Vertical diffusivity estimated from observations, 0.1 × 10−4 m2 s−1 for the...
Diapycnal Diffusivity Inferred from Scalar Microstructure Measurements near the New England Shelf/Slope Front
Diapycnal Diffusivity Scalar Microstructure Measurements New England Shelf
2008/6/30
Conductivity microstructure was used to estimate the diapycnal thermal eddy diffusivity KT near the New England shelf/slope front in early August 1997. Two datasets were collected with a towed vehicle...
Comparison of Thermally Driven Circulations from a Depth-Coordinate Model and an Isopycnal-Layer Model. Part I: Scaling-Law Sensitivity to Vertical Diffusivity
Thermally Driven Circulations Depth-Coordinate Model Isopycnal-Layer Model Scaling-Law Sensitivity
2008/6/30
Two different types of numerical ocean circulation models are used in a classical idealized problem, the thermally induced circulation in an ocean basin bounded by two meridians to the east and west a...
Inversion of Upper Ocean Temperature Time Series for Entrainment, Advection, and Diffusivity
Upper Ocean Temperature Time Series Entrainment Advection Diffusivity
2008/6/26
An inversion technique for estimating the terms of the oceanic near-surface heat transport is extended to include the vertical heat flux at the bottom of the surface mixed layer. The mixed-layer heat ...
Ballast, sinking velocity, and apparent diffusivity within marine snow and zooplankton fecal pellets: Implications for substrate turnover by attached bacteria
Ballas sinking velocity apparent diffusivity
2014/4/21
We analyzed size-specific dry mass, sinking velocity, and apparent diffusivity in field-sampled marine snow,
laboratory-made aggregates formed by diatoms or coccolithophorids, and small and large zoo...
Soil atmosphere exchange of carbonyl sulfide (COS) regulated by diffusivity depending on water-filled pore space
Soil atmosphere exchange carbonyl sulfide (COS) water-filled pore space
2010/1/15
The exchange of carbonyl sulfide (COS) between soil and the atmosphere was investigated for three arable soils from Germany, China and Finland and one forest soil from Siberia for parameterization in ...
REMARKS ON DIFFUSIVITY VERSUS ABSORPTION THROUGH THE BOUNDARY
Diffusivity nonlinear boundary conditio
2007/8/7
0 on \overline{\Omega}, there exist positive constants C and K which depend only on |u_0|_{L^\infty} such that u(x, t) \leq C exp(m^{-1}k\alpha t).
Direct measurement of diffusivity within diatom aggregates containing transparent exopolymer particles
Direct measurement of diffusivity diatom aggregates transparent exopolymer particles
2014/4/22
We present the first direct measurements of apparent diffusivity within diatom aggregates using a diffusivity microsensor. Transparent exopolymer particles (TEP) and aggregate dry mass (TEP and cells)...