How often should observations be made?
Having an accurate date for the different observations is very important. Because of that, it is best to write down the observation on the same day that it was made, rather than wait for the end of the week to write a summary.
While not every day may have an event that is noteworthy, the notes need not be very long and it is good to have regular daily observations, even if on some days the notes are very brief. For example, on a day in which no noteworthy events or changes take place, one might simply write something like “today no changes in the ice or weather were observed – the wind remains out of the South.”