Archive for December, 2010

December 2010 was coldest since 1890

December 31st, 2010
photo

The Met Office has just announced that December 2010 was the coldest December since 1890 based on the Central England Temperature (CET) dataset which started in 1659, the longest such set of figures in the world. The month was also the coldest individual calendar month since February 1986, with temperatures dropping as low as -21.1C in Altnaharra in Sutherland, Scotland. There were 10 nights in December 2010 when the temperature fell below -18C somewhere in the UK. Northern Ireland also saw its lowest ever recorded temperature -18C at Castlederg, County Tyrone on 20th December.

Update from the BBC Met blog: Met Office provisional figures show that December 2010 with a mean CET temperature of -0.7C was the second coldest since records began in 1659, beaten only by December 1890 which had a mean of -0.8C.

2010 was also the coldest year since 1986.

According to the Met Office blog

“Remarkably, at a time when global warming remains a very high profile issue around the world, the 2010 UK CET figure is around the levels recorded from the years 1659 to 1758 – and well below the median figure for the whole series which runs from 1659 to 2009. For the UK at least, the climate in the last few years far from warming, has been very definitely cooling. This could be yet more anecdotal evidence that the prolonged solar minima which started around 2007 continues to influence the UK’s climate.

Above photo of Armathwaite in the Lake District by Rich Fraser on Flickr.

Cleaner rivers in the UK

December 31st, 2010

Otters, water voles and fish are all benefitting from the improved quality of the UK’s waterways, now described as the cleanest since the industrial revolution.  Since almost disappearing from the wild in the 1970s, otters are thriving, particularly in the south west of England, Cumbria and Northumberland.  The population of water voles, highly precarious  in the 1990s, is also beginning to recover.   The good results of stricter pollution controls and extensive conservation work are set to continue in the new year with the introduction of new European water quality directives.  Guardian

Polar bears reach Britain?

December 29th, 2010

I thought this article by Michael McCarthy in The Indepedent was amusing:

“Reports of polar bears travelling to Britain made the news earlier this year. The RSPB suggested that one had been washed up still alive on the Hebridean island of Mull – the story was an April Fool. The second report came in September when Naomi Lloyd, a presenter of ITV’s West Country breakfast bulletin, excitedly informed viewers that a polar bear had been washed up dead at the Cornish seaside town of Bude. The animal turned out to be a cow, which had been bleached white by the seawater.”

See also: Polar bear washes up on Scotland’s Isle of Mull

polar bear mull

Ice floes in Morecambe Bay

December 29th, 2010

http://www.metcheck.com/DATA/ARCHIVE/GALLERY/24259.jpg

Remarkable photo of ice floes in Morecambe Bay last week. By Rain Lady on Metcheck. It reminds me of a post last year on Estuary ice in Wales.

How oak galls are made

December 26th, 2010

6-minute video by David Attenborough on the weird and wonderful life cycle of the knopper gall wasp (Andricus quercuscalicis.) as it provokes an oak tree to produce a gall in which the wasp can lay its eggs safely inside. From the BBC’s ‘Life in the Undergrowth’. The knopper gall wasp is just one of 70 gall wasps which can afflict a single British oak, though many have only a negligible effect on the tree.

From Wikipedia

  • Knopper galls develop as a chemically induced distortion of growing acorns on Pedunculate Oak (Quercus robur (L.)) trees, caused by gall wasps which lay eggs within buds using their ovipositor. The gall thus produced can greatly reduce the fecundity of the oak host, making the gall a potentially more serious threat than those which develop upon leaves, buds, stems, etc. The Turkey Oak (Quercus cerris (L.)) introduced into Britain in 1735 is required for the completion of the life cycle of the gall
  • The word knopper derives from the German word ‘knoppe’ meaning a kind of felt cap or helmet worn during the 17th-century; also a small rounded protuberance, often decorative, such as a stud, a tassel or a knob

Are severe winters becoming the norm in Britain?

December 22nd, 2010

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Hampstead Heath, December 2010 by Marcus Fallon

It’s the third hard winter in a row, following two decades of relatively mild weather. Should the government invest in new technology to reduce the impact of severe winters? How many snow ploughs should the country have?

Philip Eden, Vice President of the Royal Meteorological Society, explains that cold winters in Britain are caused by a weak jet stream and often come in batches.  If the jet stream meanders southwards, Spain gets the Atlantic depressions instead, leaving the UK exposed to winds from the north, which bring the snow and low temperatures. Long term records show that clusters of cold winters occur with relative frequency: looking back at the last 50 years, 1962-65, 1968-70, 1978-82, 1985-87, and, to a lesser extent, 1995-97.

His verdict: no need to panic and stock up on the snow ploughs just yet.

Winter birdsong

December 21st, 2010

A male robin

Rather nice downloadable MP3 by the National Trust and published here by the Guardian of songs by winter birds “to help conquer the gloom of the shortest day of the year”, beginning with the UK’s smallest bird, the goldcrest with “its very thin song”.

Coldest place in Britain’s second Big Freeze of 2010

December 21st, 2010

hampstead-heath-december-2010

The prolonged cold spell affecting the UK since the end of November reached a new low on the night of December 18, when the market town of Pershore in Worcestershire, on the banks of the River Avon, was at -19.5 degrees.

The photograph of Hampstead Heath was taken on December 18 by Marcus Fallon.

Lowest ever temperature recorded in Northern Ireland

December 21st, 2010

The lowest ever temperature was recorded in Northern Ireland this week, dropping to -18C at Castlederg, County Tyrone on 20th December 2010. The previous record for the country was -17.5 °C  on  1 January 1979  in Magherally (County Down).

See also: Record lowest temperatures in the UK

Cranes in frozen England

December 20th, 2010

Cranes forage in the frosty fog of Somerset in the second Big Freeze of 2010.  They have been freed in a secret location as part of the Great Crane Project, which aims to have these remarkable birds breeding in the UK again.  Photo from the Guardian’s Week in Wildlife gallery.

Poet climbs Scafell

December 18th, 2010

In August 1802, poet, scholar and journalist Samuel Taylor Coleridge set off on a tough 9-day walking and climbing tour of the Lake District, which would include Scafell, the second highest peak in England.  It’s interesting to see how he went equipped. For a walking stick he dismantled a broom, to the annoyance of his wife. His knapsack was made of a square of green oilskin, closed by string, and inside

. . . he carried a spare shirt, stockings, cravat, and night-cap (which seems to have been Coleridge’s equivalent of a sleeping bag), together with paper twists of tea and sugar, his Notebook, and half a dozen quills with a portable inkwell.”  – Early Visions by Richard Holmes

Coleridge is said to be the first “outsider” to climb Scafell and his descent is hailed as the first ever recreational rock climb.  It was a memorable piece of improvisation. Threatened by an approaching storm, he chose a way down, without any idea of what lay below.  He found himself descending a series of ledges, a kind of giant’s staircase, known today as Broad Stand. As the ledges grew further apart, he lowered himself over them and let himself drop.  The succession of jolts soon “put my whole Limbs in a Tremble, and  . . . I began to suspect that I ought not to go on . . ” Read the rest of this entry

Audio nature trails

December 12th, 2010

More and more nature reserves are providing audio trails for visitors. They were originally designed for the blind but there are increasingly used by other people. All are free and downloadable onto your Mp3 device.

Here are a few I’ve found, but most are produced by audiotrails.co.uk

BBC British butterfly documentary

December 12th, 2010

This new BBC documentary on British butterflies looks well worth watching More here from the BBC’s Natural World including lots of clips. The documentary looks at the fascinating lives of Britain’s butterflies filmed in exquisite detail and “is also a celebration of their enduring appeal to the British people, ” but the country’s butterflies are also seriously threatened, with three quarters are in decline. The below clip shows an orange tip butterfly emerging from its chrysalis. Read the rest of this entry

Moth quiz

December 12th, 2010

Damn this quiz from Suffolk moths is difficult, but very well designed. Strictly for experts.

Dartmour ponies fed to lions

December 12th, 2010

Sensationalist headline of the month goes to me. More on this story from the Guardian “Dartmoor ponies are now worth more dead than alive, and are being killed and fed to lions in the zoo. Sadly it may be the only way to save a habitat and an economy in crisis”