Earth from Space - Image Information


LOCATION Direction Photo #: ISS028-E-35137 Date: Aug. 2011
Geographic Region: USA-CALIFORNIA
Feature: OWENS LAKE,HALOPHILIC BACTERIA,KEELER,OLANCHA,LONE PINE


IMAGE
 
Owens Lake, California

Note: This caption refers to the image versions labeled "NASA's Earth Observatory web site".

This astronaut photograph highlights the mostly dry bed of Owens Lake, located in the Owens River Valley between the Inyo Mountains and the Sierra Nevada. Shallow groundwater, springs, and seeps support minor wetlands and a central brine pool. Two bright red areas along the margins of the brine pool indicate the presence of halophilic, or salt-loving organisms known as archaeans. Grey and white materials within the lake bed are exposed lakebed sediments and salt crusts. The towns of Olancha and Lone Pine are indicated by the presence of green vegetation indicating a more constant availability of water.

The present-day Owens Lake was part of a much larger lake and river system that existed during the Pleistocene Epoch (~ 3 million to ~12,000 years ago) along the current northeastern border of California with Nevada. Meltwater from alpine glaciers in the Sierra Nevada filled the regional valleys of the Basin and Range to form several glacial lakes that were ancestral to the now-dry lakebeds (or playas) of Owens, Searles Lake, and China Lake.

While Searles and China Lakes dried out due to regional changes to a hotter and drier climate over thousands of years, Owens Lake became desiccated largely due to the diversion of Owens River water in the early 20th century to serve the needs of the City of Los Angeles, CA located 266 kilometers to the south. Following complete desiccation of the lakebed in 1926, significant amounts of windblown dust were produced - indeed, the term "Keeler fog" was coined by residents of the now largely abandoned town on the eastern side of Owens Lake due to the dust.

In addition to adverse health effects on local residents, dust from Owens Lake has been linked to visibility reduction in nearby national parks, forests, and wilderness areas. Recently, efforts to control dust evolution from the lakebed have been undertaken by the City of Los Angeles.


Images: All Available Images Low-Resolution 248k
Mission: ISS028  
Roll - Frame: E - 35137
Geographical Name: USA-CALIFORNIA  
Features: OWENS LAKE,HALOPHILIC BACTERIA,KEELER,OLANCHA,LONE PINE  
Center Lat x Lon: 36.4N x 118W
Film Exposure:   N=Normal exposure, U=Under exposed, O=Over exposed, F=out of Focus
Percentage of Cloud Cover-CLDP: 10
 
Camera:: N2
 
Camera Tilt: 10   LO=Low Oblique, HO=High Oblique, NV=Near Vertical
Camera Focal Length: 200  
 
Nadir to Photo Center Direction: S   The direction from the nadir to the center point, N=North, S=South, E=East, W=West
Stereo?:   Y=Yes there is an adjacent picture of the same area, N=No there isn't
Orbit Number: 3780  
 
Date: 20110830   YYYYMMDD
Time: 212137   GMT HHMMSS
Nadir Lat: 37.0N  
Latitude of suborbital point of spacecraft
Nadir Lon: 117.9W  
Longitude of suborbital point of spacecraft
Sun Azimuth: 221   Clockwise angle in degrees from north to the sun measured at the nadir point
Space Craft Altitude: 205   nautical miles
Sun Elevation: 55   Angle in degrees between the horizon and the sun, measured at the nadir point
Land Views: BASIN, RANGE, VALLEY  
Water Views: LAKE, RIVER  
Atmosphere Views: DUST, FOG  
Man Made Views:  
City Views: LOS ANGELES  

Photo is not associated with any sequences


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