ISS042-E-244403
| NASA Photo ID | ISS042-E-244403 |
| Focal Length | 32mm |
| Date taken | 2015.02.12 |
| Time taken | 13:27:53 GMT |
Resolutions offered for this image:
1000 x 666 pixels 540 x 360 pixels 2464 x 1640 pixels 720 x 480 pixels 4928 x 3280 pixels 640 x 426 pixels
1000 x 666 pixels 540 x 360 pixels 2464 x 1640 pixels 720 x 480 pixels 4928 x 3280 pixels 640 x 426 pixels
Spacecraft nadir point: 10.6° N, 10.7° E
Photo center point: 14.0° N, 16.0° E
Photo center point by machine learning:
Photo center point: 14.0° N, 16.0° E
Photo center point by machine learning:
Nadir to Photo Center: Northeast
Spacecraft Altitude: 215 nautical miles (398km)
Country or Geographic Name: | CHAD |
Features: | PAN- L. CHAD, DUST PLUME, BODELE DEPRESSION |
| Features Found Using Machine Learning: | PAN- |
Cloud Cover Percentage: | 10 (1-10)% |
Sun Elevation Angle: | 52° |
Sun Azimuth: | 231° |
Camera: | Nikon D4 Electronic Still Camera |
Focal Length: | 32mm |
Camera Tilt: | High Oblique |
Format: | 4928E: 4928 x 3280 pixel CMOS sensor, 36.0mm x 23.9mm, total pixels: 16.6 million, Nikon FX format |
Film Exposure: | |
| Additional Information | |
This photo is one of the photos used to create this time-lapse video:
| Width | Height | Annotated | Cropped | Purpose | Links |
|---|---|---|---|---|---|
| 1000 pixels | 666 pixels | No | No | Earth From Space collection | Download Image |
| 540 pixels | 360 pixels | Yes | No | Earth From Space collection | Download Image |
| 2464 pixels | 1640 pixels | No | No | NASA's Earth Observatory web site | Download Image |
| 720 pixels | 480 pixels | Yes | No | NASA's Earth Observatory web site | Download Image |
| 4928 pixels | 3280 pixels | No | No | Download Image | |
| 640 pixels | 426 pixels | No | No | Download Image |
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Image Caption: Lake Chad, and Saharan dust plume
This east-looking image, taken by astronauts aboard the International Space Station, shows landscapes of the arid Sahara (image left) and the darker vegetation of the wetter semi-arid tropical woodland known as the Sahel (image right). The dark green marshes of Lake Chad stand out in the foreground of this view. Even though it is more than 200 km long, Lake Chad is the small remnant of a vast lake that has repeatedly occupied most of the region in this view in the recent geological past. This lake basin have stretches from the foreground almost 1000 km to the foot of the Tibesti Mountains (image top left). The lowest slopes of the Tibesti show the remnants of great deltas.
The image also captures an active dust plume--partly obscured by the so-called Canada Arm of the Space Station. The dust rises from the white mud flats of the ancient lake bed (image top left). Lofted into the atmosphere by northeasterly winds, dust from this basin often reaches the Atlantic Ocean, thousands of km to the west. Occasionally this dust is even carried by weather systems as far as the Americas.
This east-looking image, taken by astronauts aboard the International Space Station, shows landscapes of the arid Sahara (image left) and the darker vegetation of the wetter semi-arid tropical woodland known as the Sahel (image right). The dark green marshes of Lake Chad stand out in the foreground of this view. Even though it is more than 200 km long, Lake Chad is the small remnant of a vast lake that has repeatedly occupied most of the region in this view in the recent geological past. This lake basin have stretches from the foreground almost 1000 km to the foot of the Tibesti Mountains (image top left). The lowest slopes of the Tibesti show the remnants of great deltas.
The image also captures an active dust plume--partly obscured by the so-called Canada Arm of the Space Station. The dust rises from the white mud flats of the ancient lake bed (image top left). Lofted into the atmosphere by northeasterly winds, dust from this basin often reaches the Atlantic Ocean, thousands of km to the west. Occasionally this dust is even carried by weather systems as far as the Americas.
