[Tagging] how to tag a salt flat

[Warin]

On 30/09/2015 8:28 PM, Martin Koppenhoefer wrote:
>
> sent from a phone
>
>> Am 30.09.2015 um 12:03 schrieb Warin <61sundowner at gmail.com>:
>>
>> Local conditions...
>>
>> A 5 day week is also not 'typical', yet there are places that have 5 day weeks, places with 2 seasons per year and other places with 5 seasons in a year.
>> And those would be regarded as 'typical' values for a week or seasons in a year.
>>
>> What is 'typical' in one part of the globe does not mean all other parts of the globe have the same condition
>
> there's a huge difference between a week or a month and a year or a day, the latter have an astronomical definition (and are indeed the same on all other parts of the globe

I assume you are taking of a calendar that is used to define the year?
The calendar in common use (Gregorian) is not as good as one used in at least one area of the globe ..
the Persian calendar is a much better match to the astronomical 'year'.

Then there is the Julian Day calendar .. no weeks, months nor years here ... just a single (now large) number...

As for a day being the same on all parts of the globe?
The old definition of a day was from sunrise to sunset. Monasteries typically ran this way, and most farmers still do.
Those are different durations if your latitude is different... and yes they varied seasonally too..

> ). A season is a part of a year, regardless how many of them there are.

Well if you want to have lake Eyre 'qualify' for the tag 'intermittent'
then I could say it 'typically' gets water once per year ... when the 'Queensland rains' fall (assuming they do)
of course the water might only be 5 mm deep and only in the northern part of the lake (the lowest part).
And then it might only be there for a week.
And then there are the years when the water does not get even that far. Bit dry for those years.

But if you want to see Lake Eyre full .. 'typically' that is once every 10 years or so...
So to me a full cycle of Lake Eyre in all its 'seasons' would be 'typically' 10 years.