File:Vue de la rivière Créquoise à Hesmond aout 2017 03.jpg
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Summary
[edit]DescriptionVue de la rivière Créquoise à Hesmond aout 2017 03.jpg |
Français : Créquoise le 10 aout 2017 (affluent de la Canche, dans le Pas-de-Calais ; département 62, France) sur une section récemment aménagées avec la fédération départementale de pêche pour faciliter la circulation des poissons (migrateurs notamment) et pour la pratique de la pêche à la ligne (parcours fédéral de pêche à la mouche, no-kill juste en aval à Offin). Le cours d'eau est ici proche d'une route et plus ou moins artificialisé (village de Hesmond) mais il vient d'être "renaturé" et complexifié sur ce secteur et il est plus naturel en amont (propriétés privées).
Le fond de ce cours d'eau est localement (plus en amont) très colmaté par un biofilm bactérien (biominéralisation). Ce jour là l'eau est laiteuse et localement brûnâtre, plus turbide que sur d'autres affluents (période pluvieuse). Le niveau est assez bas (quelques dizaines de cm environ ici )English: Créquoise on August 10th 2017 (tributary of the Canche in the Pas-de-Calais department 62, France) on a section recently organized with the departmental federation of fisheries to facilitate fish circulation (migratory fishes in particular) and for the practice of Angling (federal fly-fishing course, no-kill just downstream to Offin). The watercourse here is near a road and more or less artificialised (village of Hesmond) but it has just been "renaturated" and complexified on this sector.
The bottom of this watercourse is locally (more upstream) very clogged by a bacterial biofilm (biomineralization). On this day the water is milky and locally brown, more turbid than on other tributaries (rainy season). The level is quite low (a few tens of cm about here) |
Date | |
Source | Own work |
Author | Lamiot |
Camera location | 50° 27′ 05.5″ N, 1° 57′ 03.11″ E ![]() ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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current | 17:47, 18 August 2017 | ![]() | 4,608 × 3,456 (3.84 MB) | Lamiot (talk | contribs) | User created page with UploadWizard |
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Metadata
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Camera manufacturer | NIKON CORPORATION |
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Camera model | COOLPIX W300 |
Exposure time | 1/200 sec (0.005) |
F-number | f/2.8 |
ISO speed rating | 125 |
Date and time of data generation | 16:09, 10 August 2017 |
Lens focal length | 4.3 mm |
Latitude | 50° 27′ 5.5″ N |
Longitude | 1° 57′ 3.11″ E |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | COOLPIX W300 V1.0 |
File change date and time | 16:09, 10 August 2017 |
Y and C positioning | Centered |
Exposure Program | Normal program |
Exif version | 2.31 |
Date and time of digitizing | 16:09, 10 August 2017 |
Meaning of each component |
|
Image compression mode | 2 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
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 | 0 |
Focal length in 35 mm film | 24 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS time (atomic clock) | 14:09 |
Satellites used for measurement | 14 |
Reference for direction of image | True direction |
Direction of image | 306.45 |
Geodetic survey data used | WGS84 |
GPS date | 10 August 2017 |
GPS tag version | 0.0.3.2 |