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Chwefror 2014

Bwrw glaw yn sobor iawn...

Postiwyd gan Catalena Angele ar 21 Chwefror 2014
Map y Swyddfa Dywydd yn dangos glawiad yn y DU yn Ionawr 2014.

On’d oedd mis Ionawr yn wlyb a gwyntog gyfeillion y gwanwyn? Dwi’n si┼Ár ei bod hi wedi bwrw bob dydd! Ond faint o law welson ni, o’i gymharu â’r cyfartaledd?

Mae Gwyddonwyr Tywydd y Swyddfa Dywydd wedi creu’r map yma o’r DU i ddangos faint o law a ddisgynnodd ym mis Ionawr. Gallwch chi gael golwg fanylach drwy ddilyn y ddolen.

Sut wnaethon nhw gyfrifo’r cyfartaledd glawiad? Mae Gwyddonwyr y Swyddfa Dywydd wedi bod yn cadw cofnodion tywydd am amser maith! Dyma nhw’n canfod cyfanswm y glawiad yn Ionawr am 30 mlynedd (rhwng 1981 a 2010) cyn rhannu â 30 i weld cyfartaledd blynyddol y glawiad.

Allwch chi weld y ddau liw glas tywyll? Disgynnodd rhwng dwy a thair gwaith yn fwy o law na’r cyfartaledd yn yr ardaloedd yma yn ystod mis Ionawr? Allwch chi weld yr ardaloedd du yn ne Lloegr a dwyrain yr Alban? Roedd y glawiad yn yr ardaloedd yma dros dair gwaith yn fwy na’r cyfartaledd yn ystod mis Ionawr!

Cyngor craff i ddefnyddio’r map:

  • Mae 100% o’r cyfartaledd yn golygu ei bod hi wedi glawio yr un faint â’r cyfartaledd.
  • Mae 200% o’r cyfartaledd yn golygu ei bod hi wedi glawio ddwywaith cymaint â’r cyfartaledd.

Allwch chi ganfod eich cartref ar y map? Beth yw lliw y map yn eich ardal chi? faint o law ddisgynnodd yn lleol? Oedd mwy neu llai o law na’r cyfartaledd? Efallai y gall eich athro eich helpu i ateb y cwestiynau yma!

Eich cwestiynau, fy atebion:

Gladestry C.I.W. School: Our school was closed on Thursday because of a power cut so our head teacher recorded the results that day. Prof P: We done to your head teacher! I am very glad your head teacher is helping you with your investigation.

St Mellons Church in Wales Primary School: Hello Professor Plant. It has been so windy this week that our thermometer has blown off the wall and broken. We have been using the car thermometer. L, J and L-b. Prof P: Hello L, J and L-b at St Mellons School! I am very sorry to hear that your thermometer is broken, I will email your teacher and arrange to send you a new one. Well done for your quick thinking in using the car thermometer.

Bleasdale CE Primary School: It is very cold and wet. Prof P: I agree Bleasdale School!

Ysgol Gynradd Dolgellau: Yn anffodus mae ein thermometr wedi torri ar ol cael ei chwythu gan y gwynt mawr yn ystod yr wythnos. Athro’r Ardd: Trueni mawr i glywed hyn Ysgol Gynradd Dolgellau. Bydda i’n e-bostio eich athro i drefnu anfon thermomedr newydd atoch chi.

Manor Road Primary School (Lancashire): on Wednesday there was a red weather warning but luckily the plants stayed in place. Prof P: I’m very happy to hear that your plants are okay!

Stanford in the Vale Primary School: It is very rainy here but we are not flooded. Prof P: I am very glad to hear that Stanford! What colour is the rainfall map is your area?

Burscough Bridge Methodist School: The heavy gales have caused the rainfall measurements to be unreadable as the measuring vessel was continually disrupted and blown over. Prof P: Gosh it must have been very stormy. Thanks for letting me know, keep up the good work!

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Athro'r Ardd

Blodau cyntaf Cymru a Lloegr!

Postiwyd gan Catalena Angele ar 14 Chwefror 2014
Mae crocysau sy'n tyfu yn y ddaear ger Amgueddfa Genedlaethol Caerdydd yn blodeuo'n barod.
Cennin Pedr yn tyfu yn y ddaear ger Amgueddfa Genedlaethol Caerdydd. Mae nhw'n llawer talach na'r cennin Pedr sydd gyda fi mewn potiau!

Newyddion gwych gyfeillion y gwanwyn, mae’r cofnodion blodau cyntaf wedi cyrraedd!

Ysgol Gynradd North Road, Carnforth yn Swydd Gaerhirfryn, oedd yr ysgol gyntaf i anfon eu cofnodion ata i. Agorodd eu crocws cyntaf ar 4 Chwefror.

Ysgol Gynradd Wirfoddol Reoledig Raglan yn sir Fynwy, oedd yr ysgol gyntaf yng Nghymru i anfon eu cofnodion blodau. Agorodd eu crocws cyntaf ar 7 Chwefror.

Da iawn i’r ddwy ysgol am anfon eu cofnodion ata i!

Mae Ysgol Gynradd yr Archesgob Hutton yn Lloegr hefyd wedi sylwi bod y crocysau a blanon nhw yn y ddaear yn dechrau tyfu. Bydd planhigion yn y ddaear yn aml yn blodeuo’n gynt na phlanhigion mewn potiau. Oes unrhyw un arall wedi sylwi ar hyn?

Mae’r cofnodion blodau wedi cyrraedd yn llawer cynt na’r llynedd. 1 Mawrth oedd dyddiad blodeuo cynharaf y crocysau y llynedd. Beth yw’r rheswm am hyn?

Wrth edrych ar ganlyniadau Project Bylbiau’r Gwanwyn dros y blynyddoedd, gallwn ni weld bod y dyddiadau blodeuo yn gynt gan fo glawiad yn uwch, y tymheredd yn uwch a mwy o oriau o heulwen. Meddyliwch pa dywydd ydych chi wedi ei brofi yn ddiweddar? Fydd y tywydd eleni yn helpu eich blodau i dyfu ys gwn i?

Eich cwestiynau, fy atebion:

Ysgol Terrig: Our bulbs are now growing above the soil. Prof P: Fantastic new Ysgol Terrig, hopefully it won’t be long until you start to see flowers.

Glyncollen Primary School: we are very exited because are bulbs are going to open soon. next week we are going to measure them. Prof P: Great investigating Glyncollen, have fun with your measuring.

Manor Road Primary School (Lancashire): It rained a lot and it was very cold and windy. It has not been minus yet. Prof P: I haven’t recorded a minus temperature in Cardiff either.

Stanford in the Vale Primary School: We have had alot of rain recently but the bulbs continue to grow bigger and bigger. Prof P: It certainly has been very very rainy, I hope you haven’t had any flooding.

Greyfriars RC Primary School: Me and D. are watering the plants really well. We enjoyed it alot. D: I am really enjoying the bulbs. My one is called xdox and pop. It was supposed to be xbox and pop. Thank you enjoyed this week. Prof P: What funny names for your plants! Very imaginative.

Freuchie Primary School: The children were really excited on Monday 27th January when they realised that 40mm of water had been collected over the weekend! Prof P: Wow - that really is a lot of rain!

Woodplumpton St. Anne's Primary School: We are very excited because the first shoots are beginning to appear. It has been very wet but so far the temperature has not dropped below zero. We wonder if this is unusual. Prof P: Great question Woodplumpton! I have had a look back over our weather data for previous years and it looks like this is not that unusual. The average daytime temperature for the month has only dropped below zero once in the 8 years we have been running the Spring Bulbs investigation. This was in December 2011 when there was heavy snow. I do think it has been less cold this January than in previous years. I look forward to receiving the weather data from all the schools so I can compare all the data in my Spring Bulbs Report!

Newport Primary School: Horrible wet weather most of the week. Prof P: The trouble with the rain is that it gets in the way of playtime doesn’t it?

Manor Road Primary School (Lancashire): The weather has been cold, wet and windy this week. We have spotted our first shoots peeping through in our pots though. Prof P: It seems like your bulbs don’t mind the wet weather too much.

Chatelherault Primary School: Bad news some people have been pulling out our bulbs but some are growing. And we have had a lot of rain and sun. Prof P: Oh no! I’m sorry to hear that someone has disturbed your bulbs. I hope that the ones that are left will be okay. Sun and rain are the perfect combination to make them grow!

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Athro'r Ardd