File:ISS-052-E-045462 (Lake Khuvsgul) lrg.jpg
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[edit]DescriptionISS-052-E-045462 (Lake Khuvsgul) lrg.jpg |
English: An astronaut on the International Space Station captured this photograph of the southern tip of Lake Khuvsgul (also known as Lake Hovsgol or Hovsgol Nuur) in north central Mongolia. Referred to as the “younger sister” of Lake Baikal, Khuvsgul is approximately 137 kilometers (85 miles) long and is the largest fresh water lake in Mongolia by volume. (Note that north is to the lower right in this image.)
Several rivers and streams flow down from higher elevations (including the Sayan Mountains) and into Lake Khuvsgul. The Egiin River is the only outflow, ultimately carrying water to Lake Baikal through the Selenga River. Together, the two lakes hold more than 20 percent of Earth’s fresh surface water. The different shades of blue indicate different water depths—the deeper the blue, the deeper the water. Boreal forests (also referred to as taiga) cover the mountain slopes, while several streams cut through the forest and flow into the lake. Hatgal, a village with less than 4,000 inhabitants, sits on the lake shore and makes up most of the population in Khuvsgul Province. The lake and its surroundings are part of 11,803 square kilometers (4,557 square miles) of protected land designated as Lake Hovsgol National Park.Deutsch: Ein Astronaut auf der Internationalen Raumstation nahm diese Photographie der Südspitze des Chöwsgöl Nuur (auch Chöwsgölsee) im nördlichen Zentrum der Mongolei auf. Der auch als “jüngere Schwester” des Baikalsee bezeichnete See ist etwa 137 km lang und dem Volumen nach der größte Süßwassersee in der Mongolei. (Hinweis: Norden ist auf dieser Aufnahme in der rechten unteren Ecke.)
Mehrere Flüsse und andere Fließgewässer münden von den Hochlandregionen (darunter sind die Sayanberge) in den See. Der Egiin Gol ist der einzige Abfluss des Sees; er führt das Wasser schließlich über die Selenga zum Baikalsee. Die beiden See beinhalten zusammen mehr als 20 Prozent des gesamten auf der Erdoberfläche vorhandenen Süßwassers. Die verschiedenen Blauschattierungen verdeutlichen unterschiedliche Wassertiefen – je tiefer der Blauton, desto tiefer ist das Wasser. Boreale Wälder (gemeinhin Taiga genannt) bedecken die Berghänge, während verschiedene Wasserläufe die Wälder durchschneiden und münden in den See. Khatgal, ein Dorf mit weniger als 4000 Einwohnern, liegt am Ufer des Sees und stellt den größten Teil der gleichnamigen Provinz. Der See und seine Umgebung gehören zu einem 11.803 Quadratkilometer großen Nationalpark, dem Chöwsgöl-Nuur-Nationalpark. |
Date | |
Source | https://earthobservatory.nasa.gov/IOTD/view.php?id=91443 |
Author | Astronaut photograph ISS052-E-45462 was acquired on August 12, 2017, with a Nikon D4 digital camera using an 1150 millimeter lens, and is provided by the ISS Crew Earth Observations Facility and the Earth Science and Remote Sensing Unit, Johnson Space Center. The image was taken by a member of the Expedition 52 crew. The image has been cropped and enhanced to improve contrast, and lens artifacts have been removed. The International Space Station Program supports the laboratory as part of the ISS National Lab to help astronauts take pictures of Earth that will be of the greatest value to scientists and the public, and to make those images freely available on the Internet. Additional images taken by astronauts and cosmonauts can be viewed at the NASA/JSC Gateway to Astronaut Photography of Earth. Caption by Andi Hollier, Texas State University, Hx5, JETS Contract at NASA-JSC. |
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ![]() |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:15, 23 December 2017 | ![]() | 4,928 × 3,280 (3.27 MB) | Matthiasb (talk | contribs) | {{Information |Description ={{en|1=An astronaut on the International Space Station captured this photograph of the southern tip of Lake Khuvsgul (also known as Lake Hovsgol or Hovsgol Nuur) in north central Mongolia. Referred to as the “younger si... |
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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 D4 |
Exposure time | 1/500 sec (0.002) |
F-number | f/9 |
ISO speed rating | 320 |
Date and time of data generation | 09:04, 12 August 2017 |
Lens focal length | 1,150 mm |
User comments | NASA 2071145 83.7F |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CC 2017 (Macintosh) |
File change date and time | 13:41, 15 December 2017 |
Exposure Program | Aperture priority |
Exif version | 2.21 |
Date and time of digitizing | 09:04, 12 August 2017 |
APEX shutter speed | 8.965784 |
APEX aperture | 6.33985 |
APEX exposure bias | −0.66666666666667 |
Maximum land aperture | 6 APEX (f/8) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 90 |
DateTimeOriginal subseconds | 90 |
DateTimeDigitized subseconds | 90 |
Color space | sRGB |
Focal plane X resolution | 1,368.888885498 |
Focal plane Y resolution | 1,368.888885498 |
Focal plane resolution unit | 3 |
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 | 1,150 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 2071145 |
Lens used | 800.0 mm f/5.6 |
Rating (out of 5) | 0 |
Date metadata was last modified | 08:41, 15 December 2017 |
Unique ID of original document | 52F26BE8537D420F10D62C6450EAF36B |