< ISS041-E-55798 >
| NASA Photo ID | ISS041-E-55798 |
| Focal Length | 145mm |
| Date taken | 2014.10.02 |
| Time taken | 23:11:52 GMT |
Resolutions offered for this image:
1000 x 623 pixels 540 x 336 pixels 2128 x 1416 pixels 720 x 720 pixels 4256 x 2832 pixels 640 x 426 pixels
1000 x 623 pixels 540 x 336 pixels 2128 x 1416 pixels 720 x 720 pixels 4256 x 2832 pixels 640 x 426 pixels
Spacecraft nadir point: 37.3° S, 142.6° E
Photo center point: 35.8° S, 140.7° E
Photo center point by machine learning: 35.81° S, 140.81° E
Photo center point: 35.8° S, 140.7° E
Photo center point by machine learning: 35.81° S, 140.81° E
Nadir to Photo Center: Northwest
Spacecraft Altitude: 226 nautical miles (419km)
Country or Geographic Name: | AUSTRALIA-SA |
Features: | FIRE SCARS, DUNES, AGR. |
| Features Found Using Machine Learning: | |
Cloud Cover Percentage: | 10 (1-10)% |
Sun Elevation Angle: | 36° |
Sun Azimuth: | 64° |
Camera: | Nikon D3S Electronic Still Camera |
Focal Length: | 145mm |
Camera Tilt: | 33 degrees |
Format: | 4256E: 4256 x 2832 pixel CMOS sensor, 36.0mm x 23.9mm, total pixels: 12.87 million, Nikon FX format |
Film Exposure: | |
| Additional Information | |
| Width | Height | Annotated | Cropped | Purpose | Links |
|---|---|---|---|---|---|
| 1000 pixels | 623 pixels | No | Yes | Earth From Space collection | Download Image |
| 540 pixels | 336 pixels | Yes | Yes | Earth From Space collection | Download Image |
| 2128 pixels | 1416 pixels | No | No | NASA's Earth Observatory web site | Download Image |
| 720 pixels | 720 pixels | Yes | Yes | NASA's Earth Observatory web site | Download Image |
| 4256 pixels | 2832 pixels | No | No | Download Image | |
| 640 pixels | 426 pixels | No | No | Download Image |
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No GeoTIFF is available for this photo.Image Caption: Fire scar and dune shapes, southeastern Australia
This astronaut image taken from the International Space Station the irregular light-toned area of a fire scar. Recent fires have burned away a vegetation cover of desert scrub to reveal a sheet of white dune sand. The fire scars taper towards the north, indicating that winds from the south (top of the image)took the fires away from start points on the agricultural fence line.
At least five fire episodes can be identified by their feather-like shapes.
Fire scars are often the most arresting and dominant patterns seen from aircraft and spacecraft when flying over semi-arid regions. Google Earth images of the same area (extreme southeast corner of the state of South Australia) show quite different fire-scar patterns from different years. Fires often start at or near the agricultural area--representing rural population centers. Population and fire hazard tend to go together in semi-arid areas.
Close-spaced parallel lines within the white area show the curved forms of dozens of barchans dunes (horn-shaped dunes that point downwind). The dune forms show that they were formed by the dominant easterly winds (from the left side of the image)--in contrast to the southerly winds responsible for the burn scars. Subtle dune shapes can be recognized in other parts of the image--curved dune outlines underlie the dark scrub vegetation, catching the early morning sun in this view.
This astronaut image taken from the International Space Station the irregular light-toned area of a fire scar. Recent fires have burned away a vegetation cover of desert scrub to reveal a sheet of white dune sand. The fire scars taper towards the north, indicating that winds from the south (top of the image)took the fires away from start points on the agricultural fence line.
At least five fire episodes can be identified by their feather-like shapes.
Fire scars are often the most arresting and dominant patterns seen from aircraft and spacecraft when flying over semi-arid regions. Google Earth images of the same area (extreme southeast corner of the state of South Australia) show quite different fire-scar patterns from different years. Fires often start at or near the agricultural area--representing rural population centers. Population and fire hazard tend to go together in semi-arid areas.
Close-spaced parallel lines within the white area show the curved forms of dozens of barchans dunes (horn-shaped dunes that point downwind). The dune forms show that they were formed by the dominant easterly winds (from the left side of the image)--in contrast to the southerly winds responsible for the burn scars. Subtle dune shapes can be recognized in other parts of the image--curved dune outlines underlie the dark scrub vegetation, catching the early morning sun in this view.
