Debris flow and debris flood hazard assessment in mountain catchments

CATENA, Год журнала: 2024, Номер 245, С. 108338 - 108338

Опубликована: Авг. 31, 2024

Язык: Английский

---

Coupling tree-ring and geomorphic analyses to reconstruct the 1950s massive Glacier Lake Outburst Flood at Grosse Glacier, Chilean Patagonia

The Science of The Total Environment, Год журнала: 2025, Номер 961, С. 178368 - 178368

Опубликована: Янв. 1, 2025

Over recent decades, global warming has led to sustained glacier mass reduction and the formation of lakes dammed by potentially unstable moraines. When such dams break, devastating Glacial Lake Outburst Floods (GLOFs) can occur in high mountain environments with catastrophic effects on populations infrastructure. To understand occurrence GLOFs space time, build frequency-magnitude relationships for disaster risk or identify regional links between GLOF frequency climate warming, comprehensive databases are critically needed. inventories have thus been compiled at both scales. While these accounts offer valuable data hazard assessment, many events omitted because they occurred before satellite era prior installation river gauges, went unreported were only mentioned local media but not documented scientific literature. In addition, while geomorphic evidence past exist, their timing oftentimes remains unknown. These discontinuities preclude identification return periods most disastrous makes link ongoing remain inconclusive. overcome limitations, long-term records developed using a wide variety proxies. Here, we explore potential coupling dendrogeomorphology analyses reconstruct event that era. The Grosse Glacier outlet, San Rafael National Park, Chilean Patagonia, was selected based imagery, historical photographs testimonies indicating previous lake drainage. Tree-ring analysis allowed massive five smaller floods from 105 disturbed Nothofagus Podocarpus trees. Unmanned aerial vehicle (UAV) imagery object-based image (OBIA) used boulders estimate flow direction glacio-fluvial floodplain point least one high-energy event. Aerial photo also revealed 200-m-wide breach frontal moraine disappearance lateral lake, estimated be 1.8 km2 size, sometimes after 1944-45. An in-depth interview an eyewitness pinpointed date October 1957, line damage tree-ring precipitation Puerto Aysén. conjunction, different approaches contribute insights into consequences extreme events, aiding future assessments hazards, other high-mountain environments.

Язык: Английский

---

Debris Flow Dating and Magnitude Reconstruction

Springer eBooks, Год журнала: 2024, Номер unknown, С. 219 - 248

Опубликована: Янв. 1, 2024

Язык: Английский

---

Understanding hydrometeorological triggers of natural hazards through dendrogeomorphology: Methods, limitations, and challenges

Earth-Science Reviews, Год журнала: 2023, Номер 244, С. 104546 - 104546

Опубликована: Авг. 23, 2023

Язык: Английский

---

Synergistic Effects of Warming and Heavy Snowfall on the Increased Risk of Large-Scale Snow Avalanche in the Western Tianshan Mountains

Опубликована: Янв. 1, 2025

Язык: Английский

---

Hydrometeorological triggers of debris flows derived from historical archives and tree-ring data: Insights from the Swiss National Park

The Science of The Total Environment, Год журнала: 2025, Номер 968, С. 178880 - 178880

Опубликована: Фев. 20, 2025

Язык: Английский

---

Debris flow activity in the Southern Carpathians: Regional chronology and hydrometeorological drivers

CATENA, Год журнала: 2025, Номер 254, С. 109000 - 109000

Опубликована: Апрель 7, 2025

Язык: Английский

---

Recent debris-flow activity on the 1913 Tsivlos landslide body (Northern Peloponnese; Greece)

CATENA, Год журнала: 2023, Номер 231, С. 107318 - 107318

Опубликована: Июнь 25, 2023

Язык: Английский

---

Patterns of snow avalanche activity during the last century in Chornohora Range (Eastern Carpathians, Ukraine): Tree-ring reconstruction coupled with synoptic conditions analysis

CATENA, Год журнала: 2023, Номер 233, С. 107523 - 107523

Опубликована: Сен. 23, 2023

Язык: Английский

---

Snow avalanches in relation to tourism and transportation activities in the Făgăraş Mountains, Romanian Carpathians

Anthropocene, Год журнала: 2023, Номер 44, С. 100407 - 100407

Опубликована: Окт. 17, 2023

Язык: Английский

---