と思って調べたら、暑さが落石の原因になりうる、という論文が出てた。実際にヨセミテで観測したところ、気温と割れ目の広がり方に関係が見られたらしい。 ちなみに、カナダ西海岸は今猛烈に暑くて、スコーミッシュと同じBC州のLyttonでは、今日の気温は49°超えてるそう。 https://t.co/XI6RdMUzAq
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Solar heating of rock surfaces is known to trigger rockfall, especially during the warmest times of the day. See this study on rockfall due to heat in @YosemiteNPS. https://t.co/MQ5WPsEyTv
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RT @NatureGeosci: Huge Yosemite rockfall - the science of a NGeo paper (https://t.co/MPptDKAKvx) in terrifying action https://t.co/owvIAjI4…
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RT @NatureGeosci: Huge Yosemite rockfall - the science of a NGeo paper (https://t.co/MPptDKAKvx) in terrifying action https://t.co/owvIAjI4…