Diolch Ann
Hysbysfwrdd i'w roi ar draethau yw'r gwaith - gan y Cyngor Cefn Gwlad
a nifer o sefydliadau eraill. Roeddwn i wedi meddwl am "tonnau
ymchwyddo", "tonnau arllwys" a "tonnau ?? dympio?
Diolch yn fawr
Siān
There are three types of Waves...
Surging waves never actually break. Look out for this type of wave,
as they can easily knock people off their feet and drag them back out
to sea - especially when
standing on rocks, the shoreline or harbour walls etc.
Spilling waves appear when the top of the wave tumbles down the front
of the wave. These types of wave are generally the safest for
swimming in.
Dumping waves break with great force and in shallow water. These
dangerous waves usually occur at low tide, when the sand banks are
shallow and there is
less water for the wave to break into. Avoid the sea when you see
dumping waves.
On 22 Mawrth 2007, at 10:55, Ann Corkett wrote:
> Ydy'r darn dan sylw ym maes natur, ac os felly a oes diffiniadau
> penodol i'r termau? Pan oedd Bruce yn creu enwau rhai cynefinoedd
> morol i'r CCW, defnyddiodd "ymchwydd" ar gyfer "surge" a "dan
> ymchwydd tonnau" ar gyfer "wave-surged", felly byddai'n well peidio
> a mynd yn groes i hynny. Mi hola i o ynghylch y gweddill, ond
> byddai'n help cael gwybod beth ydynt.
>
> Ann
> ----- Original Message ----- From: "Sian Roberts"
> <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, March 22, 2007 12:01 AM
> Subject: enwau tonnau
>
>
> Oes rhywun yn gwybod a oes enwau Cymraeg ar y mathau hyn o donnau?
>
> Surging waves
> Spilling waves
> Dumping waves
>
>
> Diolch
> Siān
>
>
> --
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> 21/03/2007 07:52
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