WINTER MAINTENANCE TS ABOUT YOU lt. Here, The Gritting Company looks at what to expect from your gritting service.
has disappeared and is something that gardeners in particular need to be aware of.
Hoar frost Hoar frost is composed of tiny ice crystals and is formed by the same process as dew, but when the temperature of the surface is below freezing point. The ‘feathery’ variety of hoar frost forms when the surface temperature reaches freezing point before dew begins to form on it.
A ‘white’ frost, composed of more globular ice, occurs when the dew forms first, then subsequently freezes. The presence of fog tends to prevent the formation of hoar frost as it reduces the potential for radiational cooling of surfaces.
A noteworthy point to remember is when you see a weather report on TV or your mobile the temperature you are given will be an air temperature which is always warmer than the ground temperature. When the temperature of the ground drops below 0°C (32°F), it freezes. However, the ground temperature can be different from the temperature of the air above it. Layers deep within the ground may be colder or warmer than layers near the surface of the ground. The
forecast used for winter maintenance cover should always be based on surface temperatures.
Weather patterns here in the UK are becoming less predictable and are now punctuated with more severe weather events – ‘Beast from the East’, heatwaves, severe rain and flooding. This has resulted in some of the coldest winter months since records began in 1910; and current forecasting predictions are that it will continue this way for the foreseeable future.
At The Gritting Company, our expansive fleet of winter maintenance vehicles are strategically located at over 73 depots throughout the UK, giving a truly full national coverage. The vehicles carry around 10 tonnes of salt each, enough to cover their full route and giving the ability to spread extra salt in adverse weather. No site is too large or small for us, and with a 20,000-tonne stockpile of reserve salt (BS 3247 - certified for its quality), we never run out. Furthermore, to prevent unplanned breakdowns and interruptions, we own and proactively maintain our own fleet.
www.gritting.co.uk
www.tomorrowsfm.com
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