In this 1st episode, Josh Adams, SIT, an SUAS pilot for Adams Surveying, explains how the company is using drone surveying equipment for site verification. “We’re using the drone to verify the roads, pads, and lots,” Adams explains. “We can check the elevations to see how the contra...
Professor Josiah Dwight Whitney of Harvard was tasked with the 1860 California State Geological Survey. He hired a variety of scientist and explorers to help, including William H Brewer, Charles F Hoffmann, William More Gabb and Clarence King. You may also know them as:Mount Brewer,Mount Hoffma...
The aforementioned dark, labeled lines are calledindex contours, because their purpose is to tell you an exact elevation at a precise point in space, allowing you to work outward, and thus upward or downward, from there. The associated elevations usually end in "0" for convenience, although o...
The concept of contour lines to show different elevations on a map was developed by the French engineer J.L. Dupain-Triel in 1791. Although this method allowed the accurate depiction of land contours and elevations on a flat, two-dimensional map, it was not widely used until the mid-1800...
With lower GSD, anyone using the survey map can measure distances of objects on the ground to a highly accurate degree. The lower the GSD, the better your accuracy when measuring surfaces of different elevations, keeping the difference between the real volume and the measured volume of a stockp...
Click here to read more about his amazing journey. Next, we'll look at all of the gear that Everest climbers take with them to understand what it takes to get to the top. Forming Mount Everest Image courtesy U.S. Geological Survey Roughly pyramid shaped, and covered by glaciers, Mount...
who on August 18, 1873, were the first ever to reach its summit. Surprising to me, however, is the limited respect accorded these high climbing anglers:Charles Begole, A. H. Johnson, and John Lucas. After all, at 14,494 ft, Fisherman’s Peak is the highest mountain in the contiguous...
contemporary challenges not evident in the past (post-2000); (5) programmes championed by government and academic institutions; (6) inclusion of both montane and alpine elevations; and (7) the need to provide both scientific and practical demonstrative value to ensure a sustainable mountain future...
Caffeine exerts numerous effects on tonic cardiovascular activity as well as additive effects during cardiovascular reactivity to acute physical and mental stress, e.g., [3,13]. Acute cardiovascular effects of caffeine commonly include significant transient post-consumption elevations in resting systolic ...