File:Corps fights invasive weeds.jpg
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DescriptionCorps fights invasive weeds.jpg |
English: Sacramento District park ranger, Jacqui Zink, cleans a weed barrier from Martis Creek Lake in Truckee, Calif., during a removal, cleaning and replacement project May 19, 2012. The gas-permeable barriers kill invasive plants by blocking sunlight, but don't disturb other plant and animal species. The U.S. Army Corps of Engineers and Tahoe Divers Conservancy have teamed up to sustainably eradicate invasive milfoil at the lake, managed by the Corps’ Sacramento District. Pressure washer judges
(U.S. Army photo by John Prettyman/Released) |
Date | |
Source | https://www.flickr.com/photos/sacramentodistrict/7302485514/ |
Author | U.S. Army Corps of Engineers Sacramento District |
Licensing edit
Public domainPublic domainfalsefalse |
This image or file is a work of a U.S. Army Corps of Engineers soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.
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current | 13:54, 21 June 2016 | 4,928 × 3,264 (7.61 MB) | Joannwaddis (talk | contribs) | User created page with UploadWizard |
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D5100 |
Exposure time | 1/800 sec (0.00125) |
F-number | f/5.6 |
ISO speed rating | 400 |
Date and time of data generation | 11:02, 19 May 2012 |
Lens focal length | 36 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Ver.1.00 |
File change date and time | 11:02, 19 May 2012 |
Y and C positioning | Co-sited |
Exposure Program | Aperture priority |
Exif version | 2.3 |
Date and time of digitizing | 11:02, 19 May 2012 |
Meaning of each component |
|
Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 4.7 APEX (f/5.1) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 80 |
DateTimeOriginal subseconds | 80 |
DateTimeDigitized subseconds | 80 |
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 | 54 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS tag version | 2.3.0.0 |