Existem vários métodos para proceder ao lançamento e utilização da bóia de patamar;
Eventualmente poderá não ter aprendido realmente como a utilizar correctamente,
ou apenas de uma forma.
Cada individuo tem as suas apetências e nada como aprender qual das formas é a mais
indicada para si.
SMB : Surface Marker Buoy - "Marcador de Superfície"
Porque é importante?
- Caso saia longe do local onde iniciou o mergulho, para ser facilmente localizado(a)
- Para sinalizar à superfície alguma emergência que ocorreu no fundo
- Na eventualidade da embarcação se afastar para recuperar um mergulhador poderá tê-lo(a) sempre à vista.
- Quando o tempo muda, as vagas crescem, o vento aumenta
inesperadamente, a utlização destas bóias poderá ser a diferença entre
ser rapidamente recuperado(a) pela embarcação de apoio, ou, permanecer à
deriva.
Diversos casos pelo mundo inteiro referem mergulhadores perdidos à deriva,
não pretenda ser mais um!
Exemplos:
When the news hit late last year that 11 liveaboard divers in the Red Sea
had lost contact with their boat and drifted in open water for more
than 13 hours, it sent shivers down the spines of most divers. Many of
us found ourselves asking how we would have coped in the same situation.
More importantly, how likely was it that this would happen to us? News
bulletins took a sensational angle, announcing sternly that the waters
were infested with ‘man-eating sharks’. Back to reality, and we know
that the primary threats to the divers were the swell, the current, the
cold, the lack of drinking water and sunstroke. Thankfully, the divers
were all found alive, although a few were suffering from hypothermia and
sunstroke.
While it’s rare for divers to be lost, especially for such an extreme length of time, it does happen. In the UK in 2004 there were 29 cases of lost or adrift divers recorded in the 2004 Diving Incident Report, the year before the figure was 55.
In most of these reported cases, divers adrift were recovered within
two hours either by rescue services or their dive boat. But divers can
be faced with a lot in two hours: hypothermia, dehydration, high swells,
severe weather conditions and panic, for starters. And it doesn’t
matter how warm the air temperature is. At the height of summer last
year Milford Haven Coastguard had to airlift three divers to hospital
after they developed hypothermia when drifting for only two hours.
Survival
depends upon a lot of factors, but it is estimated that in UK waters
when wearing a drysuit and with water temperatures between 10 and 15ºC
you would expect to survive up to eight hours.
in:
http://www.divemagazine.co.uk/skills/general-skills/1911-lost-at-sea.html
