File:The Normal Overflow down the Spillway, Weston Turville Reservoir - geograph.org.uk - 1259450.jpg
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The_Normal_Overflow_down_the_Spillway,_Weston_Turville_Reservoir_-_geograph.org.uk_-_1259450.jpg (640 × 480 pixels, file size: 186 KB, MIME type: image/jpeg)
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[edit]DescriptionThe Normal Overflow down the Spillway, Weston Turville Reservoir - geograph.org.uk - 1259450.jpg |
English: The Normal Overflow down the Spillway, Weston Turville Reservoir. This fixed sized slot in the spillway 1259441 allows water to flow out freely under low flow conditions, up to a fixed maximum. If the water flow into the reservoir exceeds this rate (for instance after very heavy rain) the water back up in the reservoir, minimising the danger of flooding downstream. If the water continues to arrive faster than it exits eventually the water will top the rim of the spillway - preventing the water level from rising to a point where it might threaten the integrity of the earth dam.
For further information see 1259380 |
Date | |
Source | From geograph.org.uk |
Author | Chris Reynolds |
Attribution (required by the license) InfoField | Chris Reynolds / The Normal Overflow down the Spillway, Weston Turville Reservoir / |
InfoField | Chris Reynolds / The Normal Overflow down the Spillway, Weston Turville Reservoir |
Camera location | 51° 46′ 47″ N, 0° 45′ 20″ W | View this and other nearby images on: OpenStreetMap | 51.779780; -0.755500 |
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Object location | 51° 46′ 47″ N, 0° 45′ 20″ W | View this and other nearby images on: OpenStreetMap | 51.779780; -0.755500 |
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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 Chris Reynolds and is licensed for reuse under the Creative Commons Attribution-ShareAlike 2.0 license.
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This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
Attribution: Chris Reynolds
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 21:23, 26 February 2011 | 640 × 480 (186 KB) | GeographBot (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=The Normal Overflow down the Spillway, Weston Turville Reservoir This fixed sized slot in the spillway 1259441 allows water to flow out freely under low flow conditions, up to a fixed maximum. I |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot A580 |
Exposure time | 1/160 sec (0.00625) |
F-number | f/2.6 |
ISO speed rating | 80 |
Date and time of data generation | 09:58, 16 April 2009 |
Lens focal length | 5.8 mm |
File change date and time | 09:58, 16 April 2009 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 09:58, 16 April 2009 |
Image compression mode | 5 |
APEX shutter speed | 7.3125 |
APEX aperture | 2.75 |
APEX exposure bias | 0 |
Maximum land aperture | 2.75 APEX (f/2.59) |
Metering mode | Pattern |
Flash | Flash did not fire, auto mode |
Color space | sRGB |
Focal plane X resolution | 11,520 |
Focal plane Y resolution | 11,502.958579882 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |