Okavango Delta, Botswana (NASA, International Space Station, 06/06/14)

Okavango inland delta in northern Botswana is featured in this image photographed by an Expedition 40 crew member on the International Space Station. The great Okavango delta in the Kalahari Desert is illuminated in the sun's reflection point in this panorama. Using this sun glint technique, crew members can image fine detail of water bodies. Here the bright line of the Okavango River shows the annual summer flood advancing from the well-watered Angolan Highlands (upper margin) to the delta. Then the flood water slowly seeps across the 150 kilometer-long delta, supplying forests and wetlands, finally reaching the fault-bounded lower margin of the delta in the middle of winter. Most of the water of this large river is used up by the forests, or evaporates in the dry air. Only two percent of the river's water actually exits the delta. The wetland supports high biodiversity in the middle of the otherwise semiarid Kalahari Desert, and is now one of the most famous tourist sites in Africa. This view also shows the small quantity of water in the Boteti River. Okavango water only reaches the dry lake floors (lower right) in the wettest years. Part of one of the station's solar arrays is visible at right.

Image credit: NASA

Original image:
www.flickr.com/photos/nasa2explore/14579798639/in/set-721...

More about space station research:
www.nasa.gov/mission_pages/station/research/index.html

Crew Earth Observations on Flickr:
www.flickr.com/photos/nasamarshall/sets/72157621443555137/

________________________________
These official NASA photographs are being made available for publication by news organizations and/or for personal use printing by the subject(s) of the photographs. The photographs may not be used in materials, advertisements, products, or promotions that in any way suggest approval or endorsement by NASA. All Images used must be credited. For information on usage rights please visit: www.nasa.gov/audience/formedia/features/MP_Photo_Guidelin...

Some rights reserved

Taken on: June 6, 2014

Tags:

Crew Earth Observations

CEO

Earth from space

station research

NASA

Okavango Delta

Botswana

Kalahari Desert

Okavango River

Africa

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Sets appears in: • International Space Station Research • Views from the International Space Station

Camera: Nikon D3S, f/22.0, 1/320 sec, 42mm, ISO 400 (more info) (hide info)

Camera:	Nikon D3S
Lens:	28.0-70.0 mm f/2.8
Aperture:	f/22.0
Exposure Time:	0.003 sec (1/320)
Focal Length:	42mm
ISO:	400
Exposure Bias:	0 EV
Flash:	No Flash
Exposure Program:	Aperture-priority AE
Exposure Mode:	Auto
Metering Mode:	Multi-segment
White Balance:	Auto
Gain Control:	Low gain up
Sharpness:	Hard
Color Space:	sRGB
Software:	Adobe Photoshop CS6 (Windows)
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