Dan H. Shugar
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View article: Will landscape responses reduce glacier sensitivity to climate change in High Mountain Asia?
Will landscape responses reduce glacier sensitivity to climate change in High Mountain Asia? Open
In High Mountain Asia (HMA), ongoing climate change threatens mountain water resources as glaciers melt, and the resulting changes in runoff and water availability are likely to have considerable negative impacts on ecological and human sy…
View article: Land‐To‐Sea Sediment Fluxes From a Major Glacial Lake Outburst Flood Were Stepped Rather Than Instantaneous
Land‐To‐Sea Sediment Fluxes From a Major Glacial Lake Outburst Flood Were Stepped Rather Than Instantaneous Open
Glacial lake outburst floods can transport large volumes of sediment. Where these floods reach the coastline, much of the particulate matter is delivered directly to the marine environment. It has been suggested that offshore deposits, spe…
View article: The Sikkim flood of October 2023: Drivers, causes, and impacts of a multihazard cascade
The Sikkim flood of October 2023: Drivers, causes, and impacts of a multihazard cascade Open
On 3 October 2023, a multihazard cascade in the Sikkim Himalaya, India, was triggered by 14.7 million cubic meters of frozen lateral moraine collapsing into South Lhonak Lake. The impact generated an ~20-meter tsunami-like impact wave, whi…
View article: Will landscape responses reduce glacier sensitivity to climate change in High Mountain Asia?
Will landscape responses reduce glacier sensitivity to climate change in High Mountain Asia? Open
In High Mountain Asia (HMA) ongoing climate change threatens mountain water resources as glaciers melt, and the resulting changes in runoff and water availability are likely to have considerable negative impacts on ecological and human sys…
View article: The influence of ground shaking on the distribution and size of coseismic landslides from the Mw 7.6 2005 Kashmir earthquake
The influence of ground shaking on the distribution and size of coseismic landslides from the Mw 7.6 2005 Kashmir earthquake Open
Understanding the conditions that governed the distribution of coseismic landslide frequency and size from past earthquakes is imperative for quantifying the hazard potential of future events. However, it remains a challenge to evaluate th…
View article: Landscape response will reduce glacier sensitivity to climate change in High Mountain Asia
Landscape response will reduce glacier sensitivity to climate change in High Mountain Asia Open
In High Mountain Asia (HMA) climate change threatens mountain water resources as glaciers melt, and the resulting changes in runoff and water availability are hypothesised to have considerable negative impacts on ecological and human syste…
View article: Shaking up Assumptions: Earthquakes Have Rarely Triggered Andean Glacier Lake Outburst Floods
Shaking up Assumptions: Earthquakes Have Rarely Triggered Andean Glacier Lake Outburst Floods Open
As the world’s glaciers recede in response to a warming atmosphere, a change in the magnitude and frequency of related hazards is expected. Among the most destructive hazards are glacier lake outburst floods (GLOFs), and their future evolu…
View article: Tweedsmuir Glacier, Alsek River, and the salmon migration that wasn’t
Tweedsmuir Glacier, Alsek River, and the salmon migration that wasn’t Open
Sockeye salmon are an important species both ecologically as well as culturally. At some point in the recent geological past, as substantiated by Indigenous oral history and ecological data, sockeye would migrate up Alsek River through the…
View article: Active tectonics within the southwestern edge of the Fars Arc, SW Iran
Active tectonics within the southwestern edge of the Fars Arc, SW Iran Open
The Fars Arc constitutes the southeastern segment of a tectonic recessions and salients array that characterizes the Zagros orogen. The delineation of the Fars Arc's western boundary is attributed to the prominent Kazerun fault system. How…
View article: Shaking up assumptions: Earthquakes have rarely triggered Andean Glacier Lake Outburst Floods
Shaking up assumptions: Earthquakes have rarely triggered Andean Glacier Lake Outburst Floods Open
As the world’s glaciers recede in response to a warming atmosphere, a change in the magnitude and frequency of related hazards is expected. Among the most destructive hazards are Glacier Lake Outburst Floods (GLOFs), and their future evolu…
View article: Brief communication: An ice-debris avalanche in the Nupchu Valley, Kanchenjunga Conservation Area, eastern Nepal
Brief communication: An ice-debris avalanche in the Nupchu Valley, Kanchenjunga Conservation Area, eastern Nepal Open
Beginning in December 2020, a series of small to medium, torrent-like pulses commenced upon a historic debris cone located within the Nupchu Valley, Kanchenjunga Conservation Area (KCA), Nepal. Sometime between 16 and 21 August 2022 a comp…
View article: Rapid fluvial remobilization of sediments deposited by the 2021 Chamoli disaster, Indian Himalaya
Rapid fluvial remobilization of sediments deposited by the 2021 Chamoli disaster, Indian Himalaya Open
High-magnitude mass flows can have a pervasive geomorphological legacy, yet the short-term response of valley floors to such intense disturbances is poorly known and poses significant observational challenges in unstable landscapes. We com…
View article: Reply on RC1
Reply on RC1 Open
Abstract. Beginning in December 2020, a series of small-to-medium, torrent-like pulses commenced upon a historic debris cone located within the Nupchu valley, Kanchenjunga Conservation Area (KCA), Nepal. Sometime between 16 and 21 August 2…
View article: Comment on egusphere-2023-624
Comment on egusphere-2023-624 Open
Abstract. Beginning in December 2020, a series of small-to-medium, torrent-like pulses commenced upon a historic debris cone located within the Nupchu valley, Kanchenjunga Conservation Area (KCA), Nepal. Sometime between 16 and 21 August 2…
View article: Brief Communication: An Ice-Debris Avalanche in the Nupchu Valley, Kanchenjunga Conservation Area, Eastern Nepal
Brief Communication: An Ice-Debris Avalanche in the Nupchu Valley, Kanchenjunga Conservation Area, Eastern Nepal Open
Beginning in December 2020, a series of small-to-medium, torrent-like pulses commenced upon a historic debris cone located within the Nupchu valley, Kanchenjunga Conservation Area (KCA), Nepal. Sometime between 16 and 21 August 2022 a comp…
View article: Shallow deformation of the Mw 4.9 Khonj earthquake (6 January 2017) in the Zagros Simply Folded Belt, Iran
Shallow deformation of the Mw 4.9 Khonj earthquake (6 January 2017) in the Zagros Simply Folded Belt, Iran Open
On 6 January 2017, an Mw 4.9 earthquake occurred c. 40 km northeast of the city of Khonj, in the Simply Folded Belt (SFB) of the Zagros, southwestern Iran. Using the JAXA ALOS-2 PALSAR as well as the Copernicus Sentinel-1 SAR images, we ap…
View article: Increasing cryospheric hazards and sediment supply threaten water quality and hydropower systems in high mountain areas
Increasing cryospheric hazards and sediment supply threaten water quality and hydropower systems in high mountain areas Open
Global warming-induced melting and thawing of the cryosphere are rapidly changing hydrogeomorphic processes and cryospheric hazards in high mountain areas worldwide. These processes and hazards include glacial retreat and collapses, permaf…
View article: Revising supraglacial rock avalanche magnitudes and frequencies in Glacier Bay National Park, Alaska
Revising supraglacial rock avalanche magnitudes and frequencies in Glacier Bay National Park, Alaska Open
The frequency of large supraglacial landslides (rock avalanches) occurring in glacial environments is thought to be increasing due to feedbacks with climate warming and permafrost degradation. However, it is difficult to (i) test this; (ii…
View article: Impacts of Loss of Cryosphere in the High Mountains of Northwest North America
Impacts of Loss of Cryosphere in the High Mountains of Northwest North America Open
Global atmospheric warming is causing physical and biotic changes in Earth’s high mountains at a rate that is likely unprecedented in the Holocene. We summarize changes in the presently glacierized mountains of northwest North America, inc…
View article: Landsat- and Sentinel-derived glacial lake dataset in the China–Pakistan Economic Corridor from 1990 to 2020
Landsat- and Sentinel-derived glacial lake dataset in the China–Pakistan Economic Corridor from 1990 to 2020 Open
The China–Pakistan Economic Corridor (CPEC) is one of the flagship projects of the One Belt One Road Initiative, which faces threats from water shortage and mountain disasters in the high-elevation region, such as glacial lake outburst flo…
View article: Submarine landslide tsunami hazard assessment for the Western Makran based on a deterministic approach
Submarine landslide tsunami hazard assessment for the Western Makran based on a deterministic approach Open
The Makran region, which borders southern Iran and Pakistan along the Gulf of Oman, has experienced multiple tsunamis in the last century, with some being triggered by submarine landslides. However, the role played by submarine landslides …
View article: Pre-collapse motion of the February 2021 Chamoli rock–ice avalanche, Indian Himalaya
Pre-collapse motion of the February 2021 Chamoli rock–ice avalanche, Indian Himalaya Open
Landslides are a major geohazard that cause thousands of fatalities every year. Despite their importance, identifying unstable slopes and forecasting collapses remains a major challenge. In this study, we use the 7 February 2021 Chamoli ro…
View article: Digital Elevation Models of Tweedsmuir Glacier 1950-2018
Digital Elevation Models of Tweedsmuir Glacier 1950-2018 Open
This dataset contains digital elevation models (DEMs) of Tweedsmuir Glacier, British Columbia, Canada between 1950 and 2018. DEMs from 1950, 1969, 1974, and 1987 were created using Structure-from-Motion photogrammetry in Agisoft Metashape …
View article: Digital Elevation Models of Tweedsmuir Glacier 1950-2018
Digital Elevation Models of Tweedsmuir Glacier 1950-2018 Open
This dataset contains digital elevation models (DEMs) of Tweedsmuir Glacier, British Columbia, Canada between 1950 and 2018. DEMs from 1950, 1969, 1974, and 1987 were created using Structure-from-Motion photogrammetry in Agisoft Metashape …
View article: Modern landscape change in High Mountain Asia (1950-present)
Modern landscape change in High Mountain Asia (1950-present) Open
<p>High Mountain Asia (HMA) &#8211; the Tibetan Plateau and surrounding high Asian mountains &#8211; is now experiencing amplified climate change, glacier melt, and permafrost thaw. The rapid climate change and melting and th…
View article: Topographic Control on Ground Motions and Landslides From the 2015 Gorkha Earthquake
Topographic Control on Ground Motions and Landslides From the 2015 Gorkha Earthquake Open
Landslides triggered by earthquake shaking pose a significant hazard in active mountain regions. Steep topography promotes gravitational instabilities and can amplify the seismic wavefield; however, the relationship between topographic amp…