| 词条 | Great Dun Fell |
| 释义 |
| name = Great Dun Fell | photo = Great_dun_fell.jpg | photo_caption = | elevation_m = 848 | elevation_ref = | prominence_m = 76 | prominence_ref = | parent_peak = Cross Fell | listing = Hewitt, Nuttall | location = Cumbria, England | range = Pennines | coordinates = | grid_ref_UK = NY710321 | topo = OS Landranger 91 | type = | first_ascent = | easiest_route = }} At a height of 848 metres (2,782 feet), Great Dun Fell is the second-highest mountain in England's Pennines, lying two miles south along the watershed from Cross Fell, its higher neighbour. Together with its smaller twin, Little Dun Fell, which reaches 842 metres (2762 feet),[1] it forms a stepping-stone for the Pennine Way on its long climb up from Dufton. Radar stationAt the summit there is a radar station that is operated by National Air Traffic Services and is a key part of the Air Traffic Control system for Northern England and Southern Scotland. A radome containing Primary Surveillance radar (PSR) and Secondary Surveillance Radar (SSR) antennas, various towers and fencing crown the summit. Alfred Wainwright abhorred the old radio station (removed in the 1980s) in his book Pennine Way Companion.{{fact|date=January 2018}} The construction of the radar station led to the repaving of a tarred road to the summit, which became Britain's highest road. This road is marked as private from just above the village of Knock, and not open to public motor vehicles. However, it is a bridleway until shortly before the radar station, so it is open to walkers, cyclists and horseriders.[2] Great Dun Fell Field StationThe University of Manchester formerly had a permanent meteorological observatory at the Great Dunn Fell site. It has hosted a number of field experiments doing research into clouds and their interactions with pollution. As the summit is in cloud for two thirds of the year it is an ideal location for this type of research. The university still has the option to use the site for short-term measurement periods.[3] HushingThere are the remains of hushing gulleys on the slopes of the mountain, created during lead mining of the industrial revolution. ClimateGreat Dun Fell is a tundra climate, with a July mean just below {{convert|10|C|F}}. Winters are extremely mild for a tundra climate, with daytime temperatures most often staying above freezing. The Met Office station publishes only temperature and frost averages. Considering Great Dun Fell’s climate status, the fact that night-time lows average {{convert|1.7|C|F}}[4] over the course of the year is rather remarkable and a testament to the influence of the waters surrounding the British Isles, which keep summit temperatures relatively low even in summer. {{Weather box|location = Great Dun Fell 847m asl, 1981–2010 |metric first = Yes |single line = Yes | Jan high C = 1.5 | Feb high C = 0.8 | Mar high C = 2.2 | Apr high C = 4.2 | May high C = 7.9 | Jun high C = 10.5 | Jul high C = 12.4 | Aug high C = 12.1 | Sep high C = 9.7 | Oct high C = 6.6 | Nov high C = 3.8 | Dec high C = 1.9 |year high C = 6.2 | Jan low C = -2.6 | Feb low C = -2.9 | Mar low C = -1.9 | Apr low C = -0.4 | May low C = 2.3 | Jun low C = 5.1 | Jul low C = 7.3 | Aug low C = 7.3 | Sep low C = 5.2 | Oct low C = 2.6 | Nov low C = -0.1 | Dec low C = -2.3 |year low C = 1.7 |source 1 = Met Office[5] }} References1. ^{{cite web | url = http://www.hill-bagging.co.uk/mountaindetails.php?rf=2709| title = Little Dun Fell | publisher = Hill Bagging | accessdate = 26 July 2016}} 2. ^{{cite book|first=Rob|last=Ainsley|title=50 Quirky Bike Rides|publisher=Eye Books|year=2008|page=187|url=http://www.bike99.com/44.html}} 3. ^{{cite web | url = http://www.cas.manchester.ac.uk/restools/fieldstations/greatdunfell/ | title = Great Dun Fell Field Station | publisher = University of Manchester Centre for Atmospheric Science | accessdate = 19 July 2014}} 4. ^{{cite web|url=http://www.metoffice.gov.uk/public/weather/climate/gcwr04zvq|title=Great Dun Fell 2 climate|publisher=Met Office|accessdate=5 August 2015}} 5. ^{{cite web| url =http://www.metoffice.gov.uk/public/weather/climate/gcwr04zvq | title = Great Dun Fell 2 climate| accessdate =5 August 2015|publisher = Met Office}} External links
4 : Hewitts of England|Mountains and hills of the Pennines|Mountains and hills of Cumbria|Nuttalls |
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