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Verify earliest available initialization year from dynamical spinup #179

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Merged
btobers merged 1 commit into from
Jan 29, 2026
Merged

Verify earliest available initialization year from dynamical spinup #179

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9 changes: 8 additions & 1 deletion pygem/bin/run/run_calibration.py
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,7 @@
import pandas as pd
import sklearn.model_selection
import torch
import xarray as xr
from scipy import stats
from scipy.optimize import minimize

Expand Down Expand Up @@ -891,9 +892,15 @@ def run(list_packed_vars):

# optionally adjust ref_startyear based on earliest available elevation calibration data (must be <= 2000)
if args.spinup:
args.ref_startyear = min(
min_ref_startyear = min(
2000, *(int(date[:4]) for pair in gdir.elev_change_1d['dates'] for date in pair)
)
# check if min_ref_startyear in spinup flowlines
with xr.open_dataset(
gdir.get_filepath('model_geometry', filesuffix='_dynamic_spinup_pygem_mb')
) as ds:
min_spinup_yr = int(ds.time.values.min())
args.ref_startyear = max(min_ref_startyear, min_spinup_yr)
# adjust dates table and climate data
mask = gdir.dates_table['year'] >= args.ref_startyear
gdir.dates_table = gdir.dates_table.loc[mask].reset_index(drop=True)
Expand Down