File:Al Jawf, Libya.jpg
Al_Jawf,_Libya.jpg (720 × 480 pixels, file size: 185 KB, MIME type: image/jpeg)
Captions
DescriptionAl Jawf, Libya.jpg |
English: Astronauts aboard the International Space Station used an 1150 mm lens to capture this photograph of a variety of agricultural patterns near an oasis in eastern Libya. This area is one of the most remote places in Africa, more than 900 kilometers (560 miles) from the nearest major city. The cluster of buildings, roads, and small farming operations near the top of the photo is the town of Al Jawf.
Each farming pattern in the image is related to different irrigation methods. The honeycombs in the center are what remains of the first planned farming method in the Libyan Desert, implemented around 1970. The large circles (about 1 kilometer wide) of center-pivot irrigation systems (lower left) replaced the honeycombs in order to conserve water. The grid system (upper left) is perhaps one of the oldest known to planned agriculture, but it is still used alongside the more modern patterns. (This wider view shows the full extent of the oasis.) Near Al Jawf, the oasis is covered in lush green gardens and palm trees that survive due to pumping from the largest known fossil water aquifer in the world: the Nubian Sandstone Aquifer. More than 20,000 years ago, the Saharan landscape was wet, and heavy rainfall continuously refilled the aquifer. Today the region receives less than 0.1 inches of rain a year, making this aquifer a non-renewable resource. An agreement was recently hashed out between Libya and the UN Food and Agriculture Organization to improve food security in the region by developing the country’s agriculture industry. This means the use of fossil water will continue, and the agricultural patterns we see today are likely to survive for years to come. |
||||||
Date | |||||||
Source | http://earthobservatory.nasa.gov/IOTD/view.php?id=89341&src=eoa-iotd | ||||||
Author | Astronaut photo, International Space Station Program | ||||||
Permission (Reusing this file) |
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 15:20, 10 January 2017 | 720 × 480 (185 KB) | Tillman (talk | contribs) | {{Information |Description ={{en|1=Astronauts aboard the International Space Station used an 1150 mm lens to capture this photograph of a variety of agricultural patterns near an oasis in eastern Libya. This area is one of the most remote places in... |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
File usage on other wikis
The following other wikis use this file:
- Usage on ar.wikipedia.org
- Usage on be.wikipedia.org
- Usage on ca.wikipedia.org
- Usage on ceb.wikipedia.org
- Usage on el.wikipedia.org
- Usage on en.wikipedia.org
- Usage on eo.wikipedia.org
- Usage on es.wikipedia.org
- Usage on fr.wikipedia.org
- Usage on he.wikipedia.org
- Usage on it.wikipedia.org
- Usage on ka.wikipedia.org
- Usage on ko.wikipedia.org
- Usage on pl.wikipedia.org
- Usage on pt.wikipedia.org
- Usage on ru.wikipedia.org
- Usage on sh.wikipedia.org
- Usage on sr.wikipedia.org
- Usage on ur.wikipedia.org
- Usage on vi.wikipedia.org
- Usage on vo.wikipedia.org
- Usage on www.wikidata.org
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.
Unique ID of original document | C7441BDD5FE3618E5788DAC6869265AC |
---|---|
Software used | NIKON D4 Ver.N.10 |
IIM version | 2 |