commit 414d1a4886ac2bbc93a0d5858a8aa096706f61bb
parent 6740f63f44df336759255cd24686db86c0434d37
Author: Anders Damsgaard <anders@adamsgaard.dk>
Date: Thu, 21 Nov 2019 13:52:14 +0100
Update table with parameter values
Diffstat:
2 files changed, 28 insertions(+), 22 deletions(-)
diff --git a/BIBnew.bib b/BIBnew.bib
@@ -9196,3 +9196,16 @@ Winton and A. T. Wittenberg and F. Zeng and R. Zhang and J. P. Dunne},
title = {Characteristics of the bed of the Lower Columbia Glacier, Alaska},
journal = {J. Geophys. Res.: Solid Earth}
}
+https://doi.org/10.1680/geot.1996.46.2.197
+
+@article{Tika1996,
+ doi = {10.1680/geot.1996.46.2.197},
+ year = 1996,
+ publisher = {Thomas Telford Ltd.},
+ volume = {46},
+ number = {2},
+ pages = {197--233},
+ author = {T. E. Tika and P. R. Vaughan and L. J. L. J. Lemos},
+ title = {Fast shearing of pre-existing shear zones in soil},
+ journal = {G{\'{e}}otechnique}
+}
diff --git a/continuum-granular-manuscript1.tex b/continuum-granular-manuscript1.tex
@@ -315,35 +315,27 @@ A rate-controlled setup is the opposite end member, where changes in bed frictio
\begin{table*}[htbp]
{\scriptsize
- \begin{tabular}{llllllll}
+ \begin{tabular}{llllll}
\toprule
- Parameter & Symbol & Units & DEM particles & Caesar Till & Storglaci\"aren & Two Rivers & WIS \\
+ Parameter & Symbol & Units & DEM particles & Idealized till \\
\midrule
- Friction coefficient & $\mu_\text{s}$ & -- & $0.404_\text{a}$ & $0.532_\text{}$ & $0.494_\text{b}$ & $0.321_\text{b}$ & 0.443$_\text{c}$ \\
- Cohesion & $C$ & kPa & $0_\text{a}$ & $-6.5_\text{}$ & $5.0_\text{b}$ & $14_\text{b}$ & 3.0$_\text{c}$ \\
- Representative grain size & $d$ & m & $0.04$ & -- & $1.0\times10^{-3}$ & $1.0\times10^{-3}$ & $1.0\times10^{-3}$ \\
- Hydraulic permeability & $k$ & m$^2$ & $2.0\times10^{-17}_\text{d}$ & -- & $1.3\times10^{-14}_\text{e}$ & $1.3\times10^{-17}_\text{?}$ & $4.9\times10^{-17}_\text{f}$ \\
- Nonlocal amplitude & $A$ & -- & $0.40_\text{a}$ & -- & $0.40_\text{a}$ & $0.40_\text{a}$ & $0.40_\text{a}$ \\
- Nonlinear rate dependence & $b$ & -- & $0.9377_\text{g}$ & -- & $0.9377_\text{g}$ & $0.9377_\text{g}$ & $0.9377_\text{g}$ \\
- Grain material density & $\rho_\text{s}$ & kg m$^{-3}$ & $2.6\times10^3_\text{a}$ & -- & $2.6\times10^3_\text{g}$ & $2.6\times10^3_\text{g}$ & $2.6\times10^3_\text{g}$ \\
- Porosity & $\phi$ & -- & $0.25_\text{a}$ & -- & $0.22_\text{h}$ & $0.37_\text{h}$ & $0.35_\text{?}$ \\
+ Friction coefficient & $\mu_\text{s}$ & -- & $0.404_\text{a}$ & $0.40$ \\
+ Cohesion & $C$ & kPa & $0_\text{a}$ & $0$ \\
+ Representative grain size & $d$ & m & $0.04$ & $1.0\times10^{-3}$ \\
+ Hydraulic permeability & $k$ & m$^2$ & $2\times10^{-17}_\text{b}$ & $2\times10^{-17}$ \\
+ Nonlocal amplitude & $A$ & -- & $0.50$ & $0.40_\text{c}$ \\
+ Nonlinear rate dependence & $b$ & -- & $0.022$ & $0.94_\text{c}$ \\
+ Grain material density & $\rho_\text{s}$ & kg m$^{-3}$ & $2.6\times10^3_\text{a}$ & $2.6\times10^3$ \\
+ Porosity & $\phi$ & -- & $0.25_\text{a}$ & $0.25$ \\
\bottomrule
\end{tabular}
}
\caption{\label{tab:params}%
- Material parameters for model simulations emulating discrete element method (DEM) particles \citep[e.g.,][]{Damsgaard2013},
- the subglacial till under the mountain glacier Storgl\"aciaren, Sweden. \citep[e.g.,][]{Iverson1995, Hooke1997, Iverson1998},
- the West Antarctic Ice Sheet (WIS) till at the Upstream B site \citep[e.g.,][]{Engelhardt1998, Tulaczyk2000, Leeman2016},
- and the Two Rivers till of the Lake Michigan Lobe of the Laurentide palaeo-ice sheet \citep[e.g.,][]{Clark1994, Iverson1998}.
- The parameter values originate from the following references:
+ Material parameters for model simulations emulating discrete element method (DEM) particles \citep[e.g.,][]{Damsgaard2013}, and two idealized tills with varying grain size distribution.
+ Parameter values from the literature are used where marked with a reference symbol:
a: \citet{Damsgaard2013},
- b: \citet{Iverson1998},
- c: \citet{Tulaczyk2000},
- d: \citet{Damsgaard2015},
- e: \citet{Iverson1994},
- f: \citet{Leeman2016},
- g: \citet{Henann2016},
- h: \citet{Iverson1997}.
+ b: \citet{Damsgaard2015},
+ c: \citet{Henann2016}.
}
\end{table*}
@@ -354,6 +346,7 @@ A rate-controlled setup is the opposite end member, where changes in bed frictio
\begin{center}
\includegraphics[width=7.5cm]{experiments/fig-rate_dependence.pdf}
\caption{\label{fig:rate_dependence}%
+ \nocite{Tika1996}
\textbf{a:}
Rate dependence in till friction from laboratory experiments \citep[after][]{Iverson2010}.
\textbf{b:}
