File:Cold War - Nuclear attack information (50705149568).jpg
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Summary
[edit]DescriptionCold War - Nuclear attack information (50705149568).jpg |
The Royal Observer Corps (ROC) was a civil defence organisation operating in the United Kingdom between 29 October 1925 and 31 December 1995. During the Cold War the ROC was tasked to provide primary data on the position and magnitude of any atomic weapons that detonated in the UK during any attack. During an emergency hundreds of small underground "Posts" all over the country would gather the information needed and pass the information to larger control bunkers. As that information was received the data would be written on these boards by "Post Display plotters" every few minutes and the boards rotated so that others in the control room would be aware of the developing situation. Most of the ROC staff at Posts and Group/Sector controls were volunteers, working with scientists and ROC officers. During the 1980's I was often a Post Display Plotter at the Sector control in Dundee, during exercises. This example is at the ROC Group Control bunker at York, which is owned by English Heritage and who provide tours daily (subject to Covid restrictions in 2020-1) |
Date | |
Source | Cold War - Nuclear attack information |
Author | Mike McBey |
Camera location | 53° 57′ 24.71″ N, 1° 07′ 00.24″ W ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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Licensing
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This image was originally posted to Flickr by M McBey at https://flickr.com/photos/158652122@N02/50705149568. It was reviewed on 15 February 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
15 February 2021
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current | 14:26, 15 February 2021 | ![]() | 3,859 × 2,300 (1.59 MB) | Matlin (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D300S |
Exposure time | 1/10 sec (0.1) |
F-number | f/5.6 |
ISO speed rating | 800 |
Date and time of data generation | 11:34, 29 August 2019 |
Lens focal length | 22 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Ver.1.00 |
File change date and time | 13:48, 11 December 2020 |
Y and C positioning | Co-sited |
Exposure Program | Aperture priority |
Exif version | 2.21 |
Date and time of digitizing | 11:34, 29 August 2019 |
Meaning of each component |
|
Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 4 APEX (f/4) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 38 |
DateTimeOriginal subseconds | 38 |
DateTimeDigitized subseconds | 38 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 33 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS tag version | 0.0.2.2 |