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Oklahoma sits at a frequent crossroads between three different air masses: warm, humid air from the Gulf of Mexico; warm to hot, dry air from Mexico and the Southwestern U.S.; and cold, dry air from Canada. Especially from fall to spring, Oklahoma sees frequent air mass changes, which can produce drastic swings in both temperature and humidity.
Great Sand Dunes: Colorado: September 24, 2004: 107,345.73 acres (434.4 km 2) 493,428 The tallest sand dunes in North America, up to 750 feet (230 m) tall, were formed by deposits of the ancient Rio Grande in the San Luis Valley. Abutting a variety of grasslands, shrublands, and wetlands, the park also features alpine lakes, six 13,000-foot ...
Sand dune stabilization is a coastal management practice designed to prevent erosion of sand dunes. Sand dunes are common features of shoreline and desert environments. Dunes provide habitat for highly specialized plants and animals, including rare and endangered species. They can protect beaches from erosion and recruit sand to eroded beaches.
The dunes are believed to be remnants of a massive lake, Laka Alamosa, that dried up roughly 440,000 years ago, according to the park’s website.Over time, the park says wind, water and sediment ...
This dune field was explored by Curiosity between initially between mission Sols ~1174–1248, where the rover investigated High dune, and Namib dune. Three orders of bedform were identified: wind ripple, large ripple (or wind drag ripple [6]) and dune. [7] Sand grains in this section of the dune field had a modal grain size of 120 μm [8]
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This article originally appeared on USA TODAY: Video shows wood load flying from lumber truck, running car off road. ... Toddler nearly falls from 400-foot cliff while family visits erupting Kīlauea.
The dunes in question are part of a protected zone of the Pityusic Islands called Ses Salines Natural Park, which provides a vital nesting area for migratory birds and supports crucial ecological ...