Speed up process custom data

OGGM · Sep 6, 2022 · c3b9dce · c3b9dce
1 parent 57ff957
commit c3b9dce
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/oggm/core/climate.py b/oggm/core/climate.py
@@ -83,6 +83,11 @@ def process_custom_climate_data(gdir, y0=None, y1=None,
     fpath = cfg.PATHS['climate_file']
     nc_ts = salem.GeoNetcdf(fpath)
 
+    # Avoid reading all data
+    nc_ts.set_subset(((gdir.cenlon, gdir.cenlat),
+                      (gdir.cenlon, gdir.cenlat)),
+                     margin=2)  # 2 is to be sure - also on small files
+
     # set temporal subset for the ts data (hydro years)
     sm = cfg.PARAMS['hydro_month_' + gdir.hemisphere]
     em = sm - 1 if (sm > 1) else 12