This system comprises of an Automatic Weather Observation System (AWOS), a Low Atmospheric Wind Profiler and a Sunshine Recorder
. IAAMS records very high accuracy meteorological data which could be used for various other purposes in climate studies and weather/ atmosphere modelling besides its direct use in aviation.
It is measured with a sunshine recorder
and data from meteorological stations has Alor Setar Kedah at 6.9 sunshine hours' daily average, and Bayan Lepas Penang 7.0 hours .
To initiate the observatory's research program in the 1880s and '90s, Abbott Lawrence Rotch purchased stalwart devices, including a Campbell-Stokes Sunshine Recorder
. Over the span of a century this recorder dutifully emblazoned a unique history of Western Hemisphere solar irradiation on specially calibrated cards.
Bright sunshine hours are recorded by Campbell-Stokes type sunshine recorder
. In this instrument the solar energy is concentrated by a special lens and it detects the sunshine if the energy of the beam is high enough to burn a special dark paper card.
"We had a sunshine recorder
on the school roof and pupils had to go up there everyday to check it.
where H: amount of global radiation; [H.sub.c]: global radiation under a real atmosphere in completely clear days; k: empirical constant, determined by Angstrom as k= 0,25 from Stockholm data; n: number of hours measured by a sunshine recorder
; and N: maximum possible number of hours of sunshine.
CAMPBELL-STOKES RECORDER (a meteorological device for measuring the duration of sunshine, also called a sunshine recorder
; Chambers's Science and Technology Dictionary)
Worcester's own weather man Paul Damari checks his 'sunshine recorder
' instrument in his back garden.
It was inspired by a device called the sunshine recorder
, which records the amount of sunlight on a given day by focusing the rays through a glass sphere onto specially treated paper.
One such instrument is the Campbell-Stokes sunshine recorder
Paul Damari, one of the Midlands' top weather experts, checks the sunshine recorder
in his back garden in Worcester.
On a track like Sunshine Recorder
, this band simultaneously visit the old masters while rewriting the blueprint.