diff --git a/modules/aeolus/aeolus_amv.py b/modules/aeolus/aeolus_amv.py
index 82a639021d09122a5065b86b6f0121579a181502..9081d1f0caaa8c67b7561c3f6e092eb71f665542 100644
--- a/modules/aeolus/aeolus_amv.py
+++ b/modules/aeolus/aeolus_amv.py
@@ -64,12 +64,13 @@ def get_amvs(amv_ds, timestamp, filepath=None):
     return param_nd
 
 
+# For each raob position in raob_dct, find all AMVs in time/space window
 # raob_dict: (lat,lon) -> profiles
 # raob_time: nominal time
 # amv_ds: AMV data source
 # time_window: (minutes)
 # filepath (RAOB)
-# return dict: raob -> tuple (amv_lon, amv_lat, elem, line, amv_pres, amv_spd, amv_dir)
+# return dict: raob (lat, lon) -> tuple (amv_lon, amv_lat, elem, line, amv_pres, amv_spd, amv_dir)
 def match_amvs_to_raobs(raob_dict, raob_time, amv_ds, time_window=10, filepath=None):
     nav = amv_ds.get_navigation()
     amv_params = amv_ds.get_parameters()