Lost Hills #3253

#3253 Lost Hills by JVPD
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.

Photo Credit: NASA/JPL [0003-0701-0712-0256] by 0003

Similar Images:

#3573 Great Wall of China From Space by JVPD
#19245 Photo of the Artificial Palm Island, Palm Jumeirah, on the Persian Gulf in Dubai by JVPD
#25455 Stock Photo of a Vetical Cropped Image of the State of Florida as Seen From Space by JVPD
#2898 Pulau Kimaam, West Papua by JVPD
#26949 Stock Photography of a Map of the Contiguous United States of America and the Great Lakes by JVPD
#35500 Geography Stock Photo Of The Strait Of Magellan, Chile As Seen From Space by JVPD
#2882 Bosporus Strait and Istanbul, Turkey by JVPD
#2685 Picture of World Globes - Three Views of Earth by JVPD
#3343 Cape Cod From Space by JVPD
#3619 Cape Cod From Space by JVPD
#3298 Mexicali, Calexico by JVPD
#3323 Liquefaction Effects, Bhuj Earthquake by JVPD
#3239 Republic of Fiji by JVPD
#3626 Boston From Space by JVPD
More Geography Photos


california, geography, jpl, lost hills, lost hills oil field, map, maps, nasa, oil field, oil fields, san joaquin valley, subsidence map, subsidence maps