File:Lac de Grand-Lieu2.jpg
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DescriptionLac de Grand-Lieu2.jpg |
Français : lac de Grand-Lieu vu du ciel ; Ce lac est situé à une dizaine de kilomètres au sud de la Loire. Il occupe une cuvette de faible dénivelé et profondeur. Il n'a donc qu'une faible hauteur d'eau (1.60m d'eau en moyenne en été, et environ 4m au max. en hiver). Sa superficie double en hiver (passant d'environ 35 km² en été à 65 km² en hiver), ce qui explique d'importantes spécificités écologiques. Le lac abrite notamment des forêts flottantes appelées levis, et il est écologiquement fortement inter-relié aux marais et prairies inondables périphériques, recouverts ou non suivant la saison.
English: lac de Grand-Lieu see from sky ; This lake is located in west of France, at about ten kilometers south of Loire. It occupies a basin of low altitude and low depth. It is therefore only low water level (1.60m of water on average in summer, and about 4m max. In winter). Its size doubles in winter (from about 35 sq km in summer to 65 sq km in winter), which explains important ecological characteristics. The lake supports floating forests locally called levis, and it is ecologically highly inter-connected to the near marshes |
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- 2008-07-31T14:00:55Z Pymouss 1600x1200 (683540 Bytes) {{Information |Description={{fr|Le lac de Grand-Lieu vu du ciel}} |Source=Own work |Date=2008-07-30 |Author=[[User:Pymouss44|Pymouss]] |Permission= |other_versions= }} [[Category:Saint-Philbert-de-Grand-Lieu]] [[Category:Lake
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current | 10:50, 17 August 2010 | ![]() | 1,362 × 680 (150 KB) | Lamiot (talk | contribs) | {{Information |Description={{fr|Le lac de Grand-Lieu vu du ciel}} |Source=*File:Lac_de_Grand-Lieu.jpg |Date=2010-08-17 10:49 (UTC) |Author=*File:Lac_de_Grand-Lieu.jpg: Pymouss *derivative work: ~~~ |Permission= |other_versio |
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Camera model | E2500 |
Exposure time | 5/309 sec (0.016181229773463) |
F-number | f/3.4 |
ISO speed rating | 100 |
Date and time of data generation | 21:24, 30 July 2008 |
Lens focal length | 8.9 mm |
Orientation | Normal |
Horizontal resolution | 345.948 dpi |
Vertical resolution | 345.948 dpi |
Software used | Adobe Photoshop CS2 Windows |
File change date and time | 12:48, 17 August 2010 |
Y and C positioning | Centered |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 21:24, 30 July 2008 |
Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 2.9 APEX (f/2.73) |
Metering mode | Pattern |
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Flash | Flash did not fire, compulsory flash suppression |
Color space | Uncalibrated |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
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Focal length in 35 mm film | 58 mm |
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Sharpness | Normal |
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