Inventory Of Landslides Triggered By Hurricane Matthews In Guantánamo, Cuba

Q2 Agricultural and Biological Sciences

Geography, Environment, Sustainability Pub Date : 2023-04-07 DOI:10.24057/2071-9388-2022-133

G. Pospehov, Y. Savón, R. Delgado, E. Castellanos, Á. Peña

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引用次数: 0

Abstract

Hurricane Matthew affected the eastern region of Cuba from October 4th to 5th causing large damages and numerous landslides. This research presents an inventory of landslides triggered by the hurricane. Visual interpretation of satellite images of moderate resolution from Sentinel 2A instrument and localized higher resolution satellite images provided by PlanetScope, as well as field research were the main sources of information. The resulting landslide inventory was compared with other landslide factors such as slope, geology, and soil deep and composition from maps at a scale of 1:100 000. Data recorded by 1-hour rain gauges and 24-hour rain gauge was also analyzed in order to identify rainfall thresholds for the occurrence of landslides during the Hurricane Matthew influence in the study region. A total of 619 landslides were identified and classified as rockslide, rockfall or debris flows. The research found the slope was not as important factor as the type of rock. Most of landslides were located in areas of green shale of volcanic and vulcanoclastic rocks and rocks of the ophiolitic complex formed by ancient remnants of oceanic crust. The accumulate rainfall threshold estimated for the event was between 178-407 mm/day.

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古巴关塔那摩飓风马修斯引发的山体滑坡清单

飓风马修于10月4日至5日影响古巴东部地区，造成巨大破坏和多处山体滑坡。这项研究列出了飓风引发的山体滑坡的清单。Sentinel 2A仪器中等分辨率卫星图像的视觉解释、PlanetScope提供的本地化高分辨率卫星图像以及实地研究是主要信息来源。将由此产生的滑坡清单与其他滑坡因素进行了比较，如坡度、地质、土壤深度和比例尺为1:100000的地图中的成分。还分析了1小时雨量计和24小时雨量计记录的数据，以确定飓风马修影响期间研究区域发生山体滑坡的降雨阈值。共发现619处滑坡，并将其归类为岩滑、落石或泥石流。研究发现，坡度并不像岩石类型那样重要。大多数滑坡位于火山和火山碎屑岩的绿色页岩区域，以及由古代海洋地壳残余形成的蛇绿杂岩区域。该事件的累积降雨量阈值估计在178-407毫米/天之间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Geography, Environment, Sustainability Social Sciences-Geography, Planning and Development

CiteScore

2.50

自引率

0.00%

发文量

审稿时长

12 weeks

期刊介绍： Journal “GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY” is founded by the Faculty of Geography of Lomonosov Moscow State University, The Russian Geographical Society and by the Institute of Geography of RAS. It is the official journal of Russian Geographical Society, and a fully open access journal. Journal “GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY” publishes original, innovative, interdisciplinary and timely research letter articles and concise reviews on studies of the Earth and its environment scientific field. This goal covers a broad spectrum of scientific research areas (physical-, social-, economic-, cultural geography, environmental sciences and sustainable development) and also considers contemporary and widely used research methods, such as geoinformatics, cartography, remote sensing (including from space), geophysics, geochemistry, etc. “GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY” is the only original English-language journal in the field of geography and environmental sciences published in Russia. It is supposed to be an outlet from the Russian-speaking countries to Europe and an inlet from Europe to the Russian-speaking countries regarding environmental and Earth sciences, geography and sustainability. The main sections of the journal are the theory of geography and ecology, the theory of sustainable development, use of natural resources, natural resources assessment, global and regional changes of environment and climate, social-economical geography, ecological regional planning, sustainable regional development, applied aspects of geography and ecology, geoinformatics and ecological cartography, ecological problems of oil and gas sector, nature conservations, health and environment, and education for sustainable development. Articles are freely available to both subscribers and the wider public with permitted reuse.