File:A pumping station - geograph.org.uk - 1098838.jpg
A_pumping_station_-_geograph.org.uk_-_1098838.jpg (640 × 480 pixels, file size: 151 KB, MIME type: image/jpeg)
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Summary edit
DescriptionA pumping station - geograph.org.uk - 1098838.jpg |
English: A pumping station Beside track doubling as a public footpath. It starts by the staithe in West Somerton and links with Horsey Road further to the northeast. Footprints in the soft ground indicate that this area is grazed by cattle during the summer; in late December the pasture was empty of livestock.
In the 13th century most of the marsh pastures in the Broads could only be grazed during the summer months, when the area was not flooded. It was during this time that sea levels were rising and flooding became more frequent. As a consequence, dykes were dug and embankments built in order to protect the grazing marshes. When this was no longer sufficient, wind-powered drainage mills were built, which pumped water from the marshes into dykes and from there into the rivers. Grazing in the marshes became more extensive from the mid-18th century onwards - the drained marshes contain lots of nutrients and the grazing is very lush. By the 19th century many of the wind-powered mills were supplemented by steam-powered pumps and during the first half of the 20th century diesel-powered pumps started to replace wind-powered drainage. Diesel pumps are much more efficient than wind drainage pumps and as it got drier, the surrounding peaty soil shrank, resulting in areas that are lower than the water level in the river and lower even than sea level. Today the marshes are drained by pumps which are electricity-powered. |
Date | |
Source | From geograph.org.uk |
Author | Evelyn Simak |
Attribution (required by the license) InfoField | Evelyn Simak / A pumping station / |
InfoField | Evelyn Simak / A pumping station |
Camera location | 52° 43′ 52″ N, 1° 38′ 17″ E | View this and other nearby images on: OpenStreetMap | 52.730990; 1.638000 |
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Object location | 52° 43′ 53″ N, 1° 38′ 19″ E | View this and other nearby images on: OpenStreetMap | 52.731330; 1.638500 |
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Licensing edit
This image was taken from the Geograph project collection. See this photograph's page on the Geograph website for the photographer's contact details. The copyright on this image is owned by Evelyn Simak and is licensed for reuse under the Creative Commons Attribution-ShareAlike 2.0 license.
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current | 13:22, 24 February 2011 | 640 × 480 (151 KB) | GeographBot (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=A pumping station Beside track doubling as a public footpath. It starts by the staithe in West Somerton and links with Horsey Road further to the northeast. Footprints in the soft ground indicate t |
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Metadata
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot S3 IS |
Exposure time | 1/500 sec (0.002) |
F-number | f/4 |
Date and time of data generation | 12:31, 30 December 2008 |
Lens focal length | 6 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
File change date and time | 18:52, 30 December 2008 |
Y and C positioning | Centered |
Software used | Adobe Photoshop CS Windows |
Exif version | 2.2 |
Date and time of digitizing | 12:31, 30 December 2008 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 8.96875 |
APEX aperture | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 2.875 APEX (f/2.71) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression, red-eye reduction mode |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 10,097.777777778 |
Focal plane Y resolution | 10,082.840236686 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
Supported Flashpix version | 1 |
Image width | 640 px |
Image height | 480 px |
Date metadata was last modified | 18:52, 30 December 2008 |