- echopype.qc.coerce_increasing_time(ds: xarray.core.dataset.Dataset, time_name: str = 'ping_time', win_len: int = 100) None #
Coerce a time coordinate so that it always flows forward. If coercion is necessary, the input ds will be directly modified.
a dataset for which the time coordinate needs to be corrected
name of the time coordinate to be corrected
length of the local window before the reversed timestamp within which the median pinging interval is used to infer the next ping time
- the input dataset but with specified time coordinate coerced to flow forward
This is to correct for problems sometimes observed in EK60/80 data where a time coordinate (
time1) would suddenly go backward for one ping, but then the rest of the pinging interval would remain undisturbed.