ISS035-E-25019
| NASA Photo ID | ISS035-E-25019 |
| Focal Length | 400mm |
| Date taken | 2013.04.20 |
| Time taken | 15:12:17 GMT |
Resolutions offered for this image:
1000 x 665 pixels 540 x 359 pixels 1440 x 960 pixels 720 x 480 pixels 4256 x 2832 pixels 640 x 426 pixels
1000 x 665 pixels 540 x 359 pixels 1440 x 960 pixels 720 x 480 pixels 4256 x 2832 pixels 640 x 426 pixels
Cloud masks available for this image:
Spacecraft nadir point: 28.4° S, 68.2° W
Photo center point: 27.5° S, 68.7° W
Photo center point by machine learning:
Photo center point: 27.5° S, 68.7° W
Photo center point by machine learning:
Nadir to Photo Center: Northwest
Spacecraft Altitude: 226 nautical miles (419km)
Country or Geographic Name: | ARGENTINA |
Features: | LAGUNA VERDE CATAMARCA, SALT DEPOSITS, LAGUNA NEGRA, RIDGES |
| Features Found Using Machine Learning: | |
Cloud Cover Percentage: | 10 (1-10)% |
Sun Elevation Angle: | 46° |
Sun Azimuth: | 28° |
Camera: | Nikon D3S Electronic Still Camera |
Focal Length: | 400mm |
Camera Tilt: | 15 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 | 665 pixels | No | Yes | Earth From Space collection | Download Image |
| 540 pixels | 359 pixels | Yes | Yes | Earth From Space collection | Download Image |
| 1440 pixels | 960 pixels | No | Yes | NASA's Earth Observatory web site | Download Image |
| 720 pixels | 480 pixels | Yes | No | NASA's Earth Observatory web site | Download Image |
| 4256 pixels | 2832 pixels | No | No | Download Image | |
| 640 pixels | 426 pixels | No | No | Download Image |
Download Packaged File
Download a Google Earth KML for this Image
View photo footprint information
Download a GeoTIFF for this photo
Image Caption: Laguna Verde, Andes Mts., Argentina
This striking and detailed astronaut photograph from the International Space Station shows water of different color within subbasins of the Laguna (lake) Verde in the high Andes of northwest Argentina. The lake floor as a local low point lies at 4095 m (13,438 feet) above sea level, whereas the peak of the local volcano west of the lake (not shown) reaches over 3000 meters higher (6818 m, 22,368 feet). Laguna Verde (58 km wide, 36 km long) often appears green, giving rise to its formal name.
This image shows the turquoise tint in the central subbasin (image center), with a yellow to black tinge to water in the southern subbasin at image left (also known locally as Laguna Negro). The northernmost basin at image right appears quite black, and the large gray zone comprising much of the rest of Laguna Verde is likely a combination of shallow water, only inches deep, and sunglint reflecting off the water surface. The reason for the color differences lays in the fact the many different families of salt-loving organisms occupy hypersaline lakes such as Laguna Verde. These appear as different colors - often bright -- depending on the salinities and temperatures of each water body or subbasin.
The rest of the lake floor is dry and appears white from the build-up of thick salt deposits. Parallel lines around the southern subbasin (Laguna Negro) indicate prior shorelines of this shrinking water body - evaporation removes water but leaves ephemeral shorelines marked with white salt.
This striking and detailed astronaut photograph from the International Space Station shows water of different color within subbasins of the Laguna (lake) Verde in the high Andes of northwest Argentina. The lake floor as a local low point lies at 4095 m (13,438 feet) above sea level, whereas the peak of the local volcano west of the lake (not shown) reaches over 3000 meters higher (6818 m, 22,368 feet). Laguna Verde (58 km wide, 36 km long) often appears green, giving rise to its formal name.
This image shows the turquoise tint in the central subbasin (image center), with a yellow to black tinge to water in the southern subbasin at image left (also known locally as Laguna Negro). The northernmost basin at image right appears quite black, and the large gray zone comprising much of the rest of Laguna Verde is likely a combination of shallow water, only inches deep, and sunglint reflecting off the water surface. The reason for the color differences lays in the fact the many different families of salt-loving organisms occupy hypersaline lakes such as Laguna Verde. These appear as different colors - often bright -- depending on the salinities and temperatures of each water body or subbasin.
The rest of the lake floor is dry and appears white from the build-up of thick salt deposits. Parallel lines around the southern subbasin (Laguna Negro) indicate prior shorelines of this shrinking water body - evaporation removes water but leaves ephemeral shorelines marked with white salt.
