Posts Tagged: "Light Detection and Ranging"

Mount St. Helens sees increased seismic activity as anniversary of eruption nears

This year, May 18th will mark the 36th anniversary of the eruption of Mount St. Helens, an active stratovolcano situated in Washington State’s Skamania County and part of the Cascade Range of mountains. The upcoming anniversary looks like it’s shaping up to be a special one for this major volcano, which is no longer dormant. A recent weekly update on seismic activity measured at the Cascades Volcano Observatory (CVO), produced by the U.S. Geological Survey (USGS), reports a “continued pattern of slightly elevated seismicity” at Mount St. Helens. This seismic activity has been going on for about two months. More than 130 earthquakes ranging in depth from 1.2 miles to 4 miles have been detected in the region since March 13th by the Pacific Northwest Seismic Network (PNSN). Most of the earthquakes measure a magnitude of 0.5 or less but their frequency has been stunning, with as many as 40 earthquakes per week, which has led scientists to believe that the volcano may be recharging even if it won’t erupt any day soon.

How Autonomous Vehicles Work: The different shades of autonomy ranging up to a fully self-driving car

When considering what makes an autonomous vehicle truly autonomous, it’s important to note that there are different shades of autonomy leading up to the fully self-driving car. One of the organizations which maintains a rubric helping to define autonomous vehicles is the National Highway Traffic Safety Administration (NHTSA), which recognizes five different levels of autonomy for vehicles, starting with Level 0, the most basic tier in which the driver controls all operations, as is the case for conventional vehicles today. Level 1 function-specific automation is reached when a single control function is automated, such as when electronic stability control systems help drivers maintain vehicle control, without completely replacing the need for driver vigilance. Level 2 combined function automation occurs when two primary control functions are designed to work together to relieve a driver…