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Tro Dowroniethel
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An tro dowroniethel, po an tro dowr, yw deskrivans a wayans dowr ynter an ayrgylgh ha war hag yn-dann enep an nor. An re ma yw an chif argerdhow:
- der ethennans, dowr a dhe’n ayrgylgh dhyworth enep an tir po mor. Plansow a worr yn mes dowr dre’n argerdh treusanellans.
- ethen dowr a way gans an gwynsow, ha treylya dhe gomolennow gans gluthyans.
- kodhans a dhehwel dowr dhe enep an nor arta avel glaw, ergh po keser.
Quick Facts Klass, Rann a ...
Klass |
tro bewdhorkymygol ![]() |
---|---|
Rann a |
dowronieth ![]() |
Synsys ynno/i |
Ethennans, Gluthyans, fall of precipitation, omsidhlans, Res treustir, res dor ![]() |
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![An tro hidrologel](http://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/Tro_hidrologel.jpg/640px-Tro_hidrologel.jpg)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/d/da/Rain_over_Beinn_Eich%2C_Luss_Hills%2C_Scotland.jpg/640px-Rain_over_Beinn_Eich%2C_Luss_Hills%2C_Scotland.jpg)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Leaves_in_iran_%D8%A8%D8%B1%DA%AF_%DA%AF%D9%84%D9%87%D8%A7_%D9%88_%DA%AF%DB%8C%D8%A7%D9%87%D8%A7%D9%86_%D8%A7%DB%8C%D8%B1%D8%A7%D9%86%DB%8C_10.jpg/640px-Leaves_in_iran_%D8%A8%D8%B1%DA%AF_%DA%AF%D9%84%D9%87%D8%A7_%D9%88_%DA%AF%DB%8C%D8%A7%D9%87%D8%A7%D9%86_%D8%A7%DB%8C%D8%B1%D8%A7%D9%86%DB%8C_10.jpg)
Delyow plansow a yll lettya glaw rag hedhes an enep a-dhistowgh dre kontrawaytyans. Dowr a yll resek dhe’n enep awosa yn-nans garrow plansow, po devera a-dhistowgh dhe’n nor.
Gluthyans – komolennow ‘cumulus’
- Kontraweytyans
- Res treustir
- Res goles – Yma Clapham Beck ow tos dhe ves a Fow Ingleborough, Park Kenedhlek Nansow Konteth Evrek
An gweres a wari rann bosek ynwedh. Dowr a a-ji dhe’n gweres yn lent (omsidhlans). Tamm a dhowr dor a yn town dhe’n garrek avel downsidhlans, ha tamm anodho a dre’n gweres dhe’n avon avel res goles. Pan wrello nivel dowr dor drehedhes an enep, dowr a wra resek dresto, argerdh henwys res treustir.