Intense rainfall and debris flows in the Lomond Hills, Fife, 11–12 August 2020
نویسندگان
چکیده
Over the night of 11–12th August 2020, unusually intense convective rainfall triggered several debris flows along Lomond Hills escarpment. Rainfall intensities locally exceeded an estimated 0.33% annual exceedance probability. Each flow had a different magnitude and physical character depending on availability water sediment effectiveness vegetation buffer, such that similar-looking micro-catchments responded in ways. The largest far others magnitude, extending over 1 km with descent 246 m volume c. 1500–3000 m3, causing damage to forestry road. Debris was entrained from gullied relict talus, including fallen trees incision Lateglacial glaciofluvial sand. Deposit sedimentology morphology demonstrate initial debris-flow surge probably happened early storm coinciding greatest runoff generation, followed by later fluvial reworking. This appears be event for more than 90 years may characteristic landscape response projected increases twenty-first century summers.
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ژورنال
عنوان ژورنال: Scottish geographical journal
سال: 2021
ISSN: ['1470-2541', '1751-665X']
DOI: https://doi.org/10.1080/14702541.2021.2012585