< ISS020-E-29216 >
| NASA Photo ID | ISS020-E-29216 |
| Focal Length | 400mm |
| Date taken | 2009.08.06 |
| Time taken | 21:57:52 GMT |
Resolutions offered for this image:
1000 x 663 pixels 540 x 358 pixels 720 x 480 pixels 4256 x 2913 pixels 640 x 438 pixels
1000 x 663 pixels 540 x 358 pixels 720 x 480 pixels 4256 x 2913 pixels 640 x 438 pixels
Spacecraft nadir point: 49.7° N, 126.7° W
Photo center point: 51.5° N, 125.9° W
Photo center point by machine learning:
Photo center point: 51.5° N, 125.9° W
Photo center point by machine learning:
Nadir to Photo Center: North
Spacecraft Altitude: 187 nautical miles (346km)
Country or Geographic Name: | CANADA-BC |
Features: | HA-ILTZUK ICEFIELD, SILVERTHRONE GLACIER, KLINAKLINI GLACIER |
| Features Found Using Machine Learning: | |
Cloud Cover Percentage: | 10 (1-10)% |
Sun Elevation Angle: | 53° |
Sun Azimuth: | 215° |
Camera: | Nikon D3 Electronic Still Camera |
Focal Length: | 400mm |
Camera Tilt: | 32 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 | 663 pixels | No | Yes | Earth From Space collection | Download Image |
| 540 pixels | 358 pixels | Yes | Yes | Earth From Space collection | Download Image |
| 720 pixels | 480 pixels | Yes | Yes | NASA's Earth Observatory web site | Download Image |
| 4256 pixels | 2913 pixels | No | No | Download Image | |
| 640 pixels | 438 pixels | No | No | Download Image |
Download Packaged File
Download a Google Earth KML for this Image
View photo footprint information
No GeoTIFF is available for this photo.Image Caption: Heiltskuk Icefield, British Columbia, Canada
The Heiltskuk (also written Ha-Iltzuk) Icefield covers an area of approximately 3,600 square kilometers (1,389 square miles) in the southern Coast Mountains of British Columbia. This detailed astronaut photograph illustrates the icefield--mostly covered by snow across the upper mountain slopes--and two major valley glaciers that extend from it. Valley glaciers are large masses of slowly flowing ice and entrained debris that move downhill, carving out wide U-shaped valleys in the process. The locations of former valley glaciers can frequently be identified by the presence of these U-shaped valleys on a now glacier-free landscape.
The two largest valley glaciers in the image, Silverthrone Glacier and Klinaklini Glacier, both flow towards Knight Inlet to the south (not shown). Several moraines--accumulations of rock and soil debris along the edges and surface of a glacier--are drawn out into long, dark lines by the flowing ice, and they extend along the length of both glaciers. The confluence of the two glaciers at image center illustrates how a moraine located along the side of a glacier can become a medial moraine, in the center of the joined ice mass. Smaller valley glaciers are visible near Mount Silverthrone.
The Heiltskuk (also written Ha-Iltzuk) Icefield covers an area of approximately 3,600 square kilometers (1,389 square miles) in the southern Coast Mountains of British Columbia. This detailed astronaut photograph illustrates the icefield--mostly covered by snow across the upper mountain slopes--and two major valley glaciers that extend from it. Valley glaciers are large masses of slowly flowing ice and entrained debris that move downhill, carving out wide U-shaped valleys in the process. The locations of former valley glaciers can frequently be identified by the presence of these U-shaped valleys on a now glacier-free landscape.
The two largest valley glaciers in the image, Silverthrone Glacier and Klinaklini Glacier, both flow towards Knight Inlet to the south (not shown). Several moraines--accumulations of rock and soil debris along the edges and surface of a glacier--are drawn out into long, dark lines by the flowing ice, and they extend along the length of both glaciers. The confluence of the two glaciers at image center illustrates how a moraine located along the side of a glacier can become a medial moraine, in the center of the joined ice mass. Smaller valley glaciers are visible near Mount Silverthrone.
