iOS-App “MyGeoTutor-World”

References to the images used in the app:

World icon made by Vectors Market from www.flaticon.com

Cities

Tokio
Bild von Pierre Blaché auf Pixabay

Dehli
View from the top of the Jama Masjid Minaret New Delhi, 9 September 2005 (original upload date), Olivier David assumed (based on copyright claims)
CC BY-SA 3.0
Source

Mumbai
Bild von Simon Steinberger auf Pixabay

Shanghai
Bild von Yanping Jiang auf Pixabay

Sao Paulo
Bild von Joel santana Joelfotos auf Pixabay

Seoul
Bild von cmmellow auf Pixabay

Mexico City
Skyline CDMX 2016, 11 March 2016, 17:01:59, Eneas De Troya from Mexico City, México
CC BY 2.0
Source

Cairo
Bild von Simon Matzinger auf Pixabay

Beijing
Bild von 立 重立 auf Pixabay

Dhaka
Bild von Mohammad Rahmatullah auf Pixabay

Osaka
Bild von Dong Chan KIM auf Pixabay

Rivers

Nile
Bild von Remon Samuel auf Pixabay

Amazonas
Bild von michael vite auf Pixabay

Yangtze
Bild von stanbalik auf Pixabay

Mississippi/Missouri
Bild von Yinan Chen auf Pixabay

Jenissei
Bild von Nastja2015 auf Pixabay

Yellow River
Yellow River, 22 July 2012
CC BY-SA 3.0

Ob
River Ob near Barnaul (Altai Krai, Russia). 3 August 2007, Ondřej Žváček
CC BY 2.5
Source

Rio de la Plata
NASA astronaut photograph of the Río de la Plata estuary looking west-east, the picture does not show a north and south view. Actually the right is the south and the bottom of the picture is the west. Note Greater Buenos Aires on the right side of the picture, and Montevideo on the left side (near the mouth of the Santa Lucía. To the east of Greater Buenos Aires, a smaller conurbation is visible, including La Plata (a few kilometers inland) and the Berisso-Ensenada area (near the river). Water on the river is brown because of sediments carried from the Paraná and Uruguay rivers. The color turns blue when approaching the South Atlantic Ocean. The exact location of the color change (which also implies a change from fresh to salt water) depends on winds and currents.
17 March 2003, Earth Sciences and Image Analysis Laboratory, NASA Johnson Space Center
public domain
Source

Congo
Sunrise on the Congo river, between the CR and the DRC, near Mossaka. Taken from boat. 28 April 2009, Bsm15
CC BY-SA 3.0
Source

Amur River
CC BY-SA 3.0
Source

Lakes

Caspian See
Bild von WikiImages auf Pixabay

Lake Superior
Bild von csbonawitz auf Pixabay

Lake Victoria
Landsat 7 Image of Lake Victoria. Source: NASA World Wind, NASA
public domain

Lake Huron
Lake Huron Shoreline in the Bruce Peninsula Shari Chambers, 15 February 2006 (original upload date)
public domain
Source

Lake Michigan
Lake Michigan – Landsat Satellite Photo, 28 September 2006
public domain
Source

Lake Tanganyika
STS51G-034-0012 Lake Tanganyika, Tanzania, Zaire, and Zambia June 1985
This east-looking, high-oblique photograph features Lake Tanganyika—the second deepest freshwater lake in the world with a maximum depth of 4710 feet (1436 meters) and the longest lake in the world, stretching 410 miles (660 kilometers) north to south. Its width varies between 10 and 45 miles (16 and 72 kilometers). The lake, bordered on either side by steep slopes, fills a long narrow trough in the western arm of Africa’s Great Rift Valley and supports a thriving fishing industry. The lake basin, a landform in which a block of the Earth’s crust dropped down between blocks that rise on either side, began to form nearly 25 million years ago as part of the Great Rift Valley. On the lake’s west shore is Tanganyika’s sole outlet, the Lukuga River, which is a tributary of the Zaire River (northwest portion of photograph). The Zaire River flows westward and empties into the Atlantic Ocean. Other features in the photograph are shallow, silt-laden Lake Rukwa to the east of the lake and the extreme northern tip of Lake Nyasa near the southeast horizon. 18 June 1985, NASA
public domain
Source

Lake Baikal
13 June 2014, 07:38, Max Dawncat
CC BY 2.0
Source

Lake Great Bear
Great Bear Lake, NASA
public domain
Source

Lake Malawi
Lake Malawi in Africa, photographed by astronauts aboard the Space Shuttle.
Original image courtesy of the Image Analysis Laboratory, NASA Johnson Space Center (eol.jsc.nasa.gov). Image ID: STS061-75-48. Image cropped, sharpened and gamma-corrected.

This low-oblique, southeast-looking photograph shows Lake Malawi, one of many elongated lakes that form part of the Great Rift Valley of east Africa. The lake, bounded by steep mountains on all sides except the southern end, is approximately 360 miles (580 kilometers) long, averages 25 miles (40 kilometers) in width, and has a maximum depth of 2316 feet (706 meters). Lake Malawi is drained at the south end by the Shire River, which eventually empties into the Zambezi River. The lake and its steep-sloped shoreline were created by faulting that caused a thrust upward as the valley floor subsided between the slopes. The darker area along the northwest coast of the lake is the Nyika Plateau, which has several elevations more than 8000 feet (2440 meters) above sea level. Landlocked Malawi extends along the entire west coast of the lake. The large Luangwa River basin is visible as it drains to the southwest. Immediately west of the Luangwa River Valley stand the northeast-southwest-trending Muchinga Mountains with their dark ridgeline and maximum elevations reaching 6000 feet (1830 meters) above sea level. Northwest of this mountain range, drainage is to the north and west into the much larger Zaire (Congo) River watershed.

Taken on 3 December 1993, 09:49:31 UTC, NASA
public domain
Source

Great Slave Lake
Great Slave Lake in Canada’s Northwest Territories
These true- and false-color images of central Canada show the Great Slave Lake in the Northwest Territories (top) and Lake Athabasca to the southeast. Lake Athabasca straddles the border between Alberta (west) and Saskatchewan (east). A fire (red dot) is burning in Alberta, and the snow capped Rocky Mountains cut through southwest Alberta at bottom left. In the false-color image, vegetation is green, water is dark blue, and ice (or snow) is light blue. (Captions added by Kayoty)
9 June 2012, Jacques Descloitres, MODIS Land Rapid Response Team, NASA/GSFC
public domain
Source

Mountains

Mount Everest
Bild von Simon Steinberger auf Pixabay

K2
Nordseite des K2 von China aus gesehen,1986, Kuno Lechner
CC BY-SA 3.0
Source

Kangchenjunga
Kangchenjunga, 8586 m seen from Gangtok, Mountain on the border between Nepal and Sikkim, August 2004, Siegmund Stiehler
CC BY-SA 3.0
Source

Makalu
Closeup Makalu. The west-pillar is clearly visilble. Makalu II (Kangchungtse) on the left. In the foreground on the right is Hongku Chuli, a sixthousander on the ridge between Baruntse and Chamlang. 25 October 2011, 12:08:26, Craig Taylor
CC BY-SA 2.0
Source

Lhotse
Bild von 5350755 auf Pixabay

Cho Oyu
Cho Oyu, view from Gokyo, Uwe Gille 15:15, 26 Apr 2005 (UTC)
CC BY-SA 3.0
Source

dhaulagiri
Bild von Nepal Pyramids auf Pixabay

Manaslu
Sunrise, Manaslu, Nepal, Himalaya, 15 October 2006, 05:58, Ben Tubby
CC BY-SA 2.0
Source

Nanga Parbat
Nanga Parbat from the air: Diamir (west) face. In the background left of Nanga Parbat some peaks of the Karakorams: Saltoro Kangri, K6, Sherpi Kangri(?) and Ghent (the snow-covered double-summit) (right to left), 23 October 2005, Guilhem Vellut
CC-BY-SA-2.0
Source

Annapurna
Annapurna I. from about 4500 m, 1982, Wolfgang Beyer
CC BY-SA 3.0
Source

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