Manchester - Geography

Geography

At 53°28′0″N 2°14′0″W / 53.466667°N 2.233333°W / 53.466667; -2.233333, 160 miles (257 km) northwest of London, Manchester lies in a bowl-shaped land area bordered to the north and east by the Pennines, a mountain chain that runs the length of northern England, and to the south by the Cheshire Plain. The city centre is on the east bank of the River Irwell, near its confluences with the Rivers Medlock and Irk, and is relatively low-lying, being between 115 to 138 feet (35 to 42 metres) above sea level. The River Mersey flows through the south of Manchester. Much of the inner city, especially in the south, is flat, offering extensive views from many highrise buildings in the city of the foothills and moors of the Pennines, which can often be capped with snow in the winter months. Manchester's geographic features were highly influential in its early development as the world's first industrial city. These features are its climate, its proximity to a seaport at Liverpool, the availability of water power from its rivers, and its nearby coal reserves.

The name Manchester, though officially applied only to the metropolitan district of Greater Manchester, has been applied to other, wider divisions of land, particularly across much of the Greater Manchester county and urban area. The "Manchester City Zone", "Manchester post town" and the "Manchester Congestion Charge" are all examples of this.

For purposes of the Office for National Statistics, Manchester forms the most populous settlement within the Greater Manchester Urban Area, the United Kingdom's third largest conurbation. There is a mixture of high-density urban and suburban locations in Manchester. The largest open space in the city, at around 260 hectares (642 acres), is Heaton Park. Manchester is contiguous on all sides with several large settlements, except for a small section along its southern boundary with Cheshire. The M60 and M56 motorways pass through the south of Manchester, through Northenden and Wythenshawe respectively. Heavy rail lines enter the city from all directions, the principal destination being Manchester Piccadilly station.

Manchester experiences a temperate maritime climate, like much of the British Isles, with warm summers and cold winters. There is regular but generally light precipitation throughout the year. The city's average annual rainfall is 806.6 millimetres (31.76 in) compared to the UK average of 1,125.0 millimetres (44.29 in), and its mean rain days are 140.4 per annum, compared to the UK average of 154.4. Manchester however has a relatively high humidity level, which optimised the textile manufacturing (with low thread breakage) which took place there. Snowfalls are not common in the city, due to the urban warming effect. However, the Pennine and Rossendale Forest hills that surround the city to its east and north receive more snow and roads leading out of the city can be closed due to snow. notably the A62 road via Oldham and Standedge, the A57 (Snake Pass) towards Sheffield, and the M62 over Saddleworth Moor.