In message , Bernard Burton
writes

snip



One of the essentials of taking making weather recordings is to be able to
compare these with those made at other locations. When making any scientific
measurement, it is essential that the conditions are standardised is as far
as is possible, else the values produced will be of little if any value, and
could be misleading or lead to an incorrect conclusions by anyone attempting
to use them. For making weather observations, the conditions for the
exposure of instruments and their type is carefully laid down so that
meaningful comparisons both temporal and spatial can be made. I would advise
anyone, before setting up a weather station, to ascertain if the standard
conditions can be met at the location available and with the equipment
envisaged. If not, it would be advisable to consider whether a weather
station is actually a worthwhile investment.


--
Bernard Burton
Wokingham, Berkshire, UK.


It all depends on what the recordings are to be used for. There are
plenty of reasons why someone might want to record conditions in, for
example, their garden even if they cannot achieve anything like a
"standard" exposure. Frost occurs whether or not the exposure is
standard. If you measure rainfall in the middle of your garden, that's
probably quite indicative of what the garden receives irrespective of
the exposure.

Norman.
(delete "thisbit" twice to e-mail)
--
Norman Lynagh Weather Consultancy
Chalfont St Giles 85m a.s.l.
England