Earth Imaging Journal: Remote Sensing, Satellite Images, Satellite Imagery
Breaking News
Venezuela’s Lake Maracaibo Wins Lightning Crown
Using data from the Lightning Imaging Sensor (LIS) onboard...
Mobile Mapping App Capturing Bat Data in Africa
The Defense Threat Reduction Agency (DTRA), in conjunction with...
With Velodyne LiDAR Sensor Out Front, Real Earth Wins Microsoft Competition for Localization
PITTSBURGH and MORGAN HILL, Calif. - Real Earth, the...
Launch of US Subsidiary by Professional Drone World Leader Delair-Tech
AUVSI’s Xponential, New Orleans, May 2nd 2016: Delair-Tech, a...
AeroVironment Unveils Mantis i45 EO/IR Gimbal Payload for Puma AE, Delivering a Dramatic Leap in Small UAS Image Resolution and ISR Capability
NEW ORLEANS (XPONENTIAL 2016), MAY 2, 2016 – AeroVironment,...

June 12, 2012
Saudi Crops Flourish in the Desert

In this series of Landsat images, sensors detected light reflecting off Earth in the short wave-infrared, near-infrared and green portions of the electromagnetic spectrum. With this combination of wavelengths, new vegetation appears bright green while dry vegetation or fallow fields appear rust colored. Dry, barren surfaces are pink and yellow.

Saudi Crops Flourish in the Desert

Over the past three decades, Saudi Arabia has been drilling for a resource more precious than oil. Engineers and farmers have tapped hidden reserves of water to grow grains, fruits and vegetables in the desert.

The series of false-color images at left show the evolution of agricultural operations in the Wadi As-Sirhan Basin, as viewed by satellites in 1991, 2000 and 2012. The images were captured by similar sensors—the Thematic Mapper and Enhanced Thematic Mapper Plus—on three different Landsat satellites (4, 5 and 7). For scale, the agricultural fields in the images are about 1 kilometer (0.62 miles) across and use center-pivot irrigation.

The thirsty plants that rise out of the Arabian desertare quenched by water that dates back to the last Ice Age. In a more temperate past about 20,000 years ago, this “fossil” water filled aquifers that now are buried deep under the sand seas and limestone formations.   

 

Comments are closed.