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tCalculate flux for supraglacial creep experiments - sphere - GPU-based 3D disc… |
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git clone git://src.adamsgaard.dk/sphere |
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--- |
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commit 497a00115fb29356886ae81684f62e6f80d021eb |
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parent 4250795968a1883585822f0eae9d1c2060cf91f9 |
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Author: Anders Damsgaard <[email protected]> |
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Date: Thu, 21 Nov 2019 11:19:01 +0100 |
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Calculate flux for supraglacial creep experiments |
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Diffstat: |
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M python/supraglacial-plots.py | 35 ++++++++++++++++++++++++-----… |
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1 file changed, 27 insertions(+), 8 deletions(-) |
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diff --git a/python/supraglacial-plots.py b/python/supraglacial-plots.py |
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t@@ -1,7 +1,7 @@ |
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#!/usr/bin/env python |
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import sphere |
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-import numpy |
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+import numpy as np |
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import matplotlib |
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matplotlib.rcParams.update({'font.size': 12}) |
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import matplotlib.pyplot as plt |
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t@@ -12,7 +12,11 @@ slope_angle_values = [5.0, 10.0, 15.0, 20.0] |
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scatter_color = '#666666' |
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scatter_alpha = 0.6 |
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+dp_dz_vals = np.empty(len(dpdz_values)*len(slope_angle_values)) |
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+slope_angles = np.empty_like(dp_dz_vals) |
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+fluxes = np.empty_like(dp_dz_vals) |
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+j = 0 |
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for dpdz in dpdz_values: |
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outfiles = '' |
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for slope_angle in slope_angle_values: |
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t@@ -28,15 +32,15 @@ for dpdz in dpdz_values: |
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title = 'slope = ' + str(slope_angle) + '$^\circ$, ' + \ |
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'$dp/dz$ = -' + str(dpdz) + ' Pa/m' |
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- z = numpy.zeros(20) |
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- v_x_space_avg = numpy.empty_like(z) |
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- xsum_space_avg = numpy.empty_like(z) |
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- dz = numpy.max(sim.x[:,2])/len(z) |
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+ z = np.zeros(20) |
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+ v_x_space_avg = np.empty_like(z) |
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+ xsum_space_avg = np.empty_like(z) |
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+ dz = np.max(sim.x[:,2])/len(z) |
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for i in range(len(z)): |
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z[i] = i*dz + 0.5*dz |
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- I = numpy.nonzero((sim.x[:,2] >= i*dz) & (sim.x[:,2] < (i+1)*dz)) |
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- v_x_space_avg[i] = numpy.mean(sim.vel[I,0]) |
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- xsum_space_avg[i] = numpy.mean(sim.xyzsum[I,0]) |
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+ I = np.nonzero((sim.x[:,2] >= i*dz) & (sim.x[:,2] < (i+1)*dz)) |
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+ v_x_space_avg[i] = np.mean(sim.vel[I,0]) |
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+ xsum_space_avg[i] = np.mean(sim.xyzsum[I,0]) |
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plt.plot(sim.vel[:,0], sim.x[:,2], '.', |
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color=scatter_color, alpha=scatter_alpha) |
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t@@ -61,7 +65,22 @@ for dpdz in dpdz_values: |
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plt.close() |
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outfiles += sim.id() + '-avg_vel.png ' |
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+ dp_dz_vals[j] = dpdz |
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+ slope_angles[j] = slope_angle |
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+ fluxes[j] = np.trapz(xsum_space_avg/sim.time_current, dx=dz) |
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+ j += 1 |
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+ |
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subprocess.call('montage ' + outfiles + |
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'-geometry +0+0 ' + |
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'supraglacial-avg_vel-dpdz_' + str(dpdz) + '.png ', |
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shell=True) |
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+ |
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+for dpdz in dpdz_values: |
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+ I = np.nonzero(dp_dz_vals == dpdz) |
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+ plt.semilogy(slope_angles[I[0]], fluxes[I[0]], '+-', label='$dp/dz$ = ' + … |
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+ |
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+plt.legend() |
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+plt.xlabel('Slope [$^\circ$]') |
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+plt.ylabel('Specific sediment flux [m/s]') |
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+plt.savefig('supraglacial_flux.png') |
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+plt.savefig('supraglacial_flux.pdf') |
