Digital elevation model of South Fork Toutle River, Mount St. Helens, based on June–July 1980 airborne photogrammetry
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The lateral blast, debris avalanche, and lahars of the May 18th, 1980, eruption of Mount St. Helens, Washington, dramatically altered the surrounding landscape. The...
1980年5月18日,美国华盛顿州圣海伦斯火山(Mount St. Helens)喷发所产生的侧向爆轰、碎屑崩落与火山泥流(lahar),显著重塑了其周边的地貌景观。该……



