Make sec_per_month more accurate

cbegeman · cbegeman · commit 5ac7568edc6c · 2024-03-05T09:39:22.000-06:00
diff --git a/mpas_analysis/shared/constants/constants.py b/mpas_analysis/shared/constants/constants.py
@@ -53,7 +53,7 @@
 sec_per_year = sec_per_day * 365.
 
 # seconds per month (approximate)
-sec_per_month = sec_per_day * 30.
+sec_per_month = sec_per_day * 365. / 12.
 
 # Tapering coefficient for calculating spectral degrees of freedom
 tapcoef = 1.055111111111111
