File:A Day in the Life- USGS Topographers at Work running a level line in the Alabama Hills near Mt. Whitney, California in 1984.jpg
![File:A Day in the Life- USGS Topographers at Work running a level line in the Alabama Hills near Mt. Whitney, California in 1984.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/9/9e/A_Day_in_the_Life-_USGS_Topographers_at_Work_running_a_level_line_in_the_Alabama_Hills_near_Mt._Whitney%2C_California_in_1984.jpg/766px-A_Day_in_the_Life-_USGS_Topographers_at_Work_running_a_level_line_in_the_Alabama_Hills_near_Mt._Whitney%2C_California_in_1984.jpg?20220119015644)
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Summary
editDescriptionA Day in the Life- USGS Topographers at Work running a level line in the Alabama Hills near Mt. Whitney, California in 1984.jpg |
English: Today for #tbt we find a USGS topographer running a level line in the Alabama Hills near Mt. Whitney, California. The picture was taken in 1984.
Leveling is a surveying operation in which heights of objects and points are determined relative to a specified datum. In order for USGS maps to be an accurate representation of the real world, cartographers must know the position (latitude, longitude and height) of a selection of features that can be found on the map. For a fact sheet on our Map Accuracy Standards, please see: pubs.usgs.gov/fs/1999/0171/report.pdf |
Date | |
Source | https://www.flickr.com/photos/27784370@N05/26126873036/ |
Author | U.S. Geological Survey |
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This image was originally posted to Flickr by U.S. Geological Survey at https://flickr.com/photos/27784370@N05/26126873036. It was reviewed on 19 January 2022 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
19 January 2022
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current | 01:56, 19 January 2022 | ![]() | 2,666 × 2,086 (2.2 MB) | Ooligan (talk | contribs) | Uploaded a work by U.S. Geological Survey from https://www.flickr.com/photos/27784370@N05/26126873036/ with UploadWizard |
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Width | 2,962 px |
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Height | 2,317 px |
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Compression scheme | Uncompressed |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS2 Windows |
File change date and time | 15:26, 20 November 2009 |
Color space | Uncalibrated |
Image width | 2,962 px |
Image height | 2,317 px |
Date and time of digitizing | 07:26, 20 November 2009 |
Date metadata was last modified | 07:26, 20 November 2009 |
IIM version | 2 |