commit b8512897d8f7150b437612cea3af1caf268372d1
parent a780843ee4b1e0efde747c64359d4b2e0f7ba5ba
Author: Anders Damsgaard <anders@adamsgaard.dk>
Date: Tue, 9 Jul 2019 14:28:01 +0200
Add more parameter values to table
Diffstat:
2 files changed, 31 insertions(+), 15 deletions(-)
diff --git a/continuum-granular-manuscript1.tex b/continuum-granular-manuscript1.tex
@@ -157,29 +157,36 @@ These values are constrained from experiments on glass beads \citep{Damsgaard201
For the first experiment with variable water pressure, we apply a water-pressure forcing amplitude of 50 kPa that modulates effective stress at the top around 100 kPa (Fig.~\ref{fig:stick_slip}).
\begin{table}[htbp]
- \begin{tabular}{llllll}
+ {\scriptsize
+ \begin{tabular}{lllllll}
\toprule
- Parameter & Symbol & Units & Storglaci\"aren & WIS & Two Rivers \\
+ Parameter & Symbol & Units & DEM particles & Storglaci\"aren & WIS & Two Rivers \\
\midrule
- Friction coefficient & $\mu_\text{s}$ & -- & $0.494_\text{a}$ & 0.443$_\text{b}$ & $0.321_\text{a}$ \\
- Cohesion & $C$ & kPa & $5.0_\text{a}$ & 3.0$_\text{b}$ & $14_\text{a}$ \\
- Representative grain size & $d$ & m & $1.0\times10^{-3}$ & $1.0\times10^{-3}$ & $1.0\times10^{-3}$ \\
- Hydraulic permeability & $k$ & m$^2$ & $1.3\times10^{-14}_\text{c}$ & $4.9\times10^{-17}_\text{d}$ & $1.3\times10^{-17}_\text{?}$ \\
- Nonlocal amplitude & $A$ & -- & $0.40_\text{e}$ & $0.40_\text{e}$ & $0.40_\text{e}$ \\
- Non-linear rate dependence beyond yield & $b$ & -- & $0.9377_\text{f}$ & $0.9377_\text{f}$ & $0.9377_\text{f}$ \\
+ Friction coefficient & $\mu_\text{s}$ & -- & $0.404_\text{a}$ & $0.494_\text{b}$ & 0.443$_\text{c}$ & $0.321_\text{b}$ \\
+ Cohesion & $C$ & kPa & $0_\text{a}$ & $5.0_\text{b}$ & 3.0$_\text{c}$ & $14_\text{b}$ \\
+ Representative grain size & $d$ & m & $0.04$ & $1.0\times10^{-3}$ & $1.0\times10^{-3}$ & $1.0\times10^{-3}$ \\
+ Hydraulic permeability & $k$ & m$^2$ & $2.0\times10^{-17}_\text{d}$ & $1.3\times10^{-14}_\text{e}$ & $4.9\times10^{-17}_\text{f}$ & $1.3\times10^{-17}_\text{?}$ \\
+ Nonlocal amplitude & $A$ & -- & $0.40_\text{a}$ & $0.40_\text{a}$ & $0.40_\text{a}$ & $0.40_\text{a}$ \\
+ Nonlinear rate dependence beyond yield & $b$ & -- & $0.9377_\text{g}$ & $0.9377_\text{g}$ & $0.9377_\text{g}$ & $0.9377_\text{g}$ \\
+ 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 & $\phi$ & -- & $0.25_\text{a}$ & $0.22_\text{h}$ & $0.35_\text{?}$ & $0.37_\text{h}$ \\
\bottomrule
\end{tabular}
+ }
\caption{\label{tab:params}%
- Material parameters for experiments emulating the subglacial till under the mountain glacier Storgl\"aciaren, Sweden. \citep[e.g.][]{Iverson1995, Hooke1997, Iverson1998},
+ Material parameters for experiments 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:
- a: \citet{Iverson1998},
- b: \citet{Tulaczyk2000},
- c: \citet{Iverson1994},
- d: \citet{Leeman2016},
- e: \citet{Damsgaard2013},
- f: \citet{Henann2016},
+ a: \citet{Damsgaard2013},
+ b: \citet{Iverson1998},
+ c: \citet{Tulaczyk2000},
+ d: \citet{Damsgaard2015},
+ e: \citet{Iverson1994},
+ f: \citet{Leeman2016},
+ g: \citet{Henann2016},
+ h: \citet{Iverson1997},
}
\end{table}
@@ -202,6 +209,15 @@ For the first experiment with variable water pressure, we apply a water-pressure
\begin{figure}[htbp]
\begin{center}
+ \includegraphics[width=7.5cm]{experiments/damsgaard2013-fig8.pdf}\\
+ %\includegraphics[width=7.5cm]{experiments/fig3.pdf}
+ \caption{\label{fig:strain_distribution}%
+ }
+ \end{center}
+\end{figure}
+
+\begin{figure}[htbp]
+ \begin{center}
\includegraphics[width=7.5cm]{experiments/fig2.pdf}
\caption{\label{fig:till_simulation}%
Steady-state strain distribution with no water-pressure variations with different till properties.
diff --git a/experiments/damsgaard2013-fig8.pdf b/experiments/damsgaard2013-fig8.pdf
Binary files differ.
