Image Envision Home     Stock Images     Download Media     Cart     FAQs    
All     3d     Clipart     Illustrations     Historical     Objects     Photochromes     Photomontages     Photos  
TERMS OF USE: This free image can only be used for non-commercial, personal website use only. THIS IMAGE CANNOT BE used in galleries, downloaded to your computer, posted on sites for others to use, manipulated, downsized, or upsized. If you are confused about the terms of use or have any questions then contact us before using the image.

Free Picture: Lost Hills

Free Picture of Lost Hills

Image URL  
Forum BB  

This figure shows a comparison of interferograms from four different years mapping the rapid ground subsidence over the Lost Hills oil field in California. Lost Hills is located about 60 km (40 miles) northwest of Bakersfield in the San Joaquin Valley. The oil field is about 1.5 km (1 mile) wide and 6 km (3.5 miles) long. Each interferogram was created using pairs of images taken by synthetic aperture radar that have been combined to measure surface deformation or changes that may have occurred in the time between when data for the two images were taken. The images were collected by the European Space Agency's Remote Sensing satellites (ERS-1 and ERS-2) in two months of each year shown (1995, 1996, 1998 and 1999) and were combined to produce these image maps of the apparent surface deformation, or changes. The interferometric measurements that show the changes, primarily vertical subsidence of the surface, are rendered in color with purple indicating no motion and the brightest red showing rapid subsidence. The white areas are where the radar measurements could not be obtained, mostly in the agricultural fields around the oil fields where plant growth or plowing altered the radar properties of the surface. These radar data show that parts of the oil field were subsiding unusually rapidly, more than 3 centimeters (1.2 inches) a month, in 1995 and 1996. They also reveal that while the ground subsidence rate decreased in the center part of the oil field, it increased in the northern part between 1995 and 1996 and 1998 and 1999. Subsidence maps like these combined with records of oil and water extraction and injection will help scientist understand how the rocks within an oil field are behaving, leading to improvements in oil field operations.

california, geography, jpl, lost hills, lost hills oil field, map, maps, oil field, oil fields, san joaquin valley, subsidence map, subsidence maps, nasa,  free photography,  free photo,  free photos,  free picture,  free pictures,  free image,  free images

Similar Free geography Pictures
Manhattan From Space
Rocky Mountains, Montana
Barstow, California From Space
Baikal Lake, Russia
Nile River Delta, Egypt
Honolulu, Oahu, Hawaii
Boston From Space
Washington DC From Space
Canberra, Australia
Munich, Germany
Egypt Sand Dunes
String of Impact Craters

Privacy       Contact       About       Image Collections       Artist Login
Copyright © 2005-2013 Image Envision LLC   All Rights Reserved       Additional resources: Clipart, Logos