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CCS-361: Redefinition of migration time maps #367

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Merged
merged 6 commits into from
Sep 25, 2025
Merged

CCS-361: Redefinition of migration time maps #367

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bf0c53d
Explore new migration time property
jorgesicachanr Sep 1, 2025
088af05
Fix migration time maps
jorgesicachanr Sep 11, 2025
555010a
Minor fix
jorgesicachanr Sep 17, 2025
3326580
Fix typo
jorgesicachanr Sep 17, 2025
9015127
Fix in migration map definition
jorgesicachanr Sep 24, 2025
7d65fcb
Fix in migration map definition
jorgesicachanr Sep 24, 2025
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11 changes: 6 additions & 5 deletions src/ccs_scripts/aggregate/_migration_time.py
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Original file line number Diff line number Diff line change
Expand Up @@ -13,8 +13,8 @@ def generate_migration_time_property(
) -> xtgeo.GridProperty:
"""
Calculates a 3D grid property reflecting the migration time. Migration time is
defined as the first time step at which the property value exceeds the provided
`lower_threshold`.
defined as the first time step at which the property value exceeds its initial
condition
"""
# Calculate time since simulation start
times = [datetime.datetime.strptime(_prop.date, "%Y%m%d") for _prop in co2_props]
Expand All @@ -24,10 +24,11 @@ def generate_migration_time_property(
t_prop = co2_props[0].copy(newname=MIGRATION_TIME_PNAME + "_" + prop_name)
t_prop.values[~t_prop.values.mask] = np.inf
for co2, dt in zip(
co2_props,
time_since_start,
co2_props[1:],
time_since_start[1:],
):
above_threshold = co2.values > co2_threshold
diff_prop = co2.values - co2_props[0].values
above_threshold = diff_prop > co2_threshold
t_prop.values[above_threshold] = np.minimum(t_prop.values[above_threshold], dt)
# Mask inf values
if not isinstance(t_prop.values.mask, np.ndarray):
Expand Down