fixed a bug in calculation of result statistics

Author: pat-schmitt

agile1d/core/inversion.py

@@ -3,6 +3,7 @@
 import shutil
 import warnings
 import time
+import copy
 
 # External libs
 from agile1d.core.dynamics import run_model_and_get_model_values
@@ -475,10 +476,10 @@ def get_adaptive_upper_ice_thickness_limit(fl, additional_ice_thickness=100,
 
 def save_past_evolution_to_disk(gdir, data_logger):
     # recreate initial flowline
-    fl_final = data_logger.flowlines[-1]
+    fl_final = copy.deepcopy(data_logger.flowlines[-1])
     # set to initial ice thickness distribution, this already includes a
     # potential spinup
-    fl_final.surface_h = data_logger.sfc_h_start[-1]
+    fl_final.surface_h = copy.deepcopy(data_logger.sfc_h_start[-1])
     # convert flowline to torch flowline
     fl_final = MixedBedFlowline(
         line=fl_final.line, dx=fl_final.dx, map_dx=fl_final.map_dx,

agile1d/sandbox/calculate_statistics.py

@@ -1,5 +1,6 @@
 import os
 import pickle
+import copy
 import numpy as np
 import xarray as xr
 from oggm import utils, cfg
@@ -112,8 +113,8 @@ def calculate_result_statistics(gdir, data_logger, print_statistic=False):
     ds.attrs['controls_stats'] = controls_stats
 
     # how well do we match the past glacier state -----------------------------
-    fls_start_mdl = data_logger.flowlines[-1]
-    sfc_h_start = data_logger.sfc_h_start[-1]
+    fls_start_mdl = copy.deepcopy(data_logger.flowlines[-1])
+    sfc_h_start = copy.deepcopy(data_logger.sfc_h_start[-1])
     fls_start_mdl.surface_h = sfc_h_start
     fls_start_true = gdir.read_pickle('model_flowlines',
                                       filesuffix='_creation_spinup')[0]
@@ -162,7 +163,7 @@ def get_volume(fl):
     ds.attrs['past_evol_stats'] = past_evol_stats
 
     # how well do we match today's glacier state ------------------------------
-    fls_end_mdl = data_logger.flowlines[-1]
+    fls_end_mdl = copy.deepcopy(data_logger.flowlines[-1])
     fls_end_true = gdir.read_pickle('model_flowlines',
                                     filesuffix='_agile_true_end')[0]