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#GLOF

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Public
Tino Eberl

Durch das #Schmelzen der #Gletscher entstehen weltweit neue Seen.

Eine Studie der Universität #Potsdam zeigt jedoch, dass sich vor allem kleinere #Gletscherseen entleeren und nicht zwangsläufig größere #Fluten drohen.

Besonders in den #Alpen, #Peru und #Norwegen wurden Seen künstlich stabilisiert, während in Regionen wie dem #Himalaya oder #Alaska das #Gefahrenpotenzial wächst.

doi.org/10.1038/s44221-025-003

#Klimawandel#Naturgefahren#Fernerkundung
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💧🌏 Greg Cocks

Study Warns Of Glacial Outburst [GLOF] Risks From Hydropower Projects In The Himalayas, Caution Comes After Nod To Resume Testa III [Hydroelectric Project, India]
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timesofindia.indiatimes.com/in <-- shared media article
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doi.org/10.1126/science.ads265 <-- shared paper
--
#GIS #spatial #mapping #spatialanalysis #GLOF #Sikkim #Himalayas #India #climatechange #flood #flooding #risk #hazard #hydroelectric #HEP #energy #TestaIII #testa #dam #failure #engineeringgeology #engineering #construction #multihazard #melting #glacier #glacial #climatechange #weather #lowpressuresystem #planning #glaciallakes #lakes #water #hydrology #naturaldisaster #Lhonak #downstream #elevation #steepness #slope #geometry #infrastructure #publicsafety #lateral #moraine #sedimentation #cost #economics #remotesensing #model #modeling #imagery #outburstflood #overtopping #hydropower #vulnerable #humanimpact #policy #riskmanagement #warning #rainfall #precipitation

maps and charts - summary of damage assessment
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maps and photos - Overview of the 3-4 October 2023 GLOF cascade from South Lhonak Lake, India
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photos - Field evidence of sediment aggradation
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photo - Teesta III hydroelectric dam soon after failure
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Public
O=C=O

‘Catastrophic’ 2023 lake outburst in India driven by glacial melt and permafrost thaw

#ClimateChange played a key role in the “catastrophic” 2023 floods in the Himalayan state of Sikkim in #India, a new study says.
The breach of one of the “largest, fastest-growing and most hazardous” glacial lakes in Sikkim, the South #Lhonak lake, led to cascading floods that killed 55 people and washed away a 1,200 megawatt (MW) #hydropower dam.
The event was identified as a glacial lake outburst flood (#GLOF), which is a sudden release of water from a lake fed by glacial melt.
#Sikkim is a small Himalayan state in north-east India, bordering #China in the north, #Bhutan in the east, #Nepal in the west and the state of West #Bengal in the south.
Part of the eastern #Himalaya, Sikkim is host to more than 90 #glaciers and #Kanchenjunga, the world’s third-highest peak. Sikkim serves as the origin and upper river basin for the #Teesta river, one of the largest tributaries of the #Brahmaputra river system.

carbonbrief.org/catastrophic-2

An overview of the glacial lake flood cascade over 3-4 October, with (A) depicting the flood-impacted stretch of the Teesta river, landslides, hydropower plants and major settlements, (B) illustrating the moraine collapse and breach and (C) comparing pre- and post-GLOF satellite imagery of the lake. Source: Sattar et al. (2025)
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#Cryosphere
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💧🌏 Greg Cocks

Glacial Lake Floods - A Growing, Unpredictable Climate Risk
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phys.org/news/2023-10-glacial- <-- shared technical article
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doi.org/10.1038/s41467-023-360 <-- shared paper
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nature.com/articles/s43017-024 <-- shared paper
--
#GIS #spatial #mapping #spatialanalysis #climatechange #spatiotemporal #glaciallakeoutburstflood #GLOF #risk #hazard #water #hydrology #flood #flooding #risk #hazard #mitigation #publicsafety #global #river #melting #dam #ice #naturaldisaster #naturalhazard #breach #highmountain #Asia #Pakistan #China #Nepal #population #vulnerability #glacier #glacial #loss #infrastructure #loss #cost #death #injury #model #modeling #Alaska #Asia #NewZealand #Iceland #model #modeling

schematic - Methodology for quantifying glacial lake changes and impacts
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graphics - Future formation and growth of glacial lakes and GLOF hazard
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graphics and photos - The triggers and mechanisms of GLOFs
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maps and charts - Global and regional changes in glacial lake area
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Replied to 𝐃𝐫. 𝕵𝖎𝖇𝖗𝖊𝖊𝖑L ₲Ⱬ₮ 🌍
Public
𝐃𝐫. 𝕵𝖎𝖇𝖗𝖊𝖊𝖑L ₲Ⱬ₮ 🌍

I often remark to friends about #Pakistan 's mountainous north being unsuitable for life now thanks to #ClimateChange induced melting, flooding, and landslides.

The #Karakorum #Highway the world's highest such motorway connecting Pak to #China should be thought of a "seasonal" road now, gets washed away on an annual basis, sometimes more frequently.

We cannot afford to rebuild every year!

dawn.com/news/1853216/karakora

DAWN.COM · Karakoram Highway blocked as floods ravage GBBy Jamil Nagri
#ClimateCrisis#ClimateDiary#Heatwave
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💧🌏 Greg Cocks

‘Unprecedented’ Flooding Hits Juneau, Alaska, After Glacier Outburst
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cnn.com/2024/08/07/climate/ala <-- shared media article
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“A rush of water unleashed by an ailing glacier swelled an Alaska river to record levels Tuesday and caused destructive flooding in Juneau nearly a year to the date of a similar significant event.
More than 100 homes have been damaged or impacted by the so-called glacial lake outburst flooding along the Mendenhall River in the Mendenhall Valley, according to city officials, who characterized the flood severity as “unprecedented.”
Glacial lake outbursts happen when a lake of melting snow and ice and rain “drains rapidly…”
#water #glacier #risk #hazard #flood #flooding #hydrology #climatechange #Alaska #Juneau #Alaska #USA #melt #meltwater #glacieroutburst #naturalhazard #infrastructure #management #glaciallake #MendenhallRiver #MendenhallGlacier #suicidebasin #damage #urbanplanning #warming #SuicideGlacier #GLOF

drone photo - aerial - oblique - High water around homes and neighborhoods following an outburst of flooding from a lake dammed by the Mendenhall Glacier on Tuesday August 6th 2024 in Juneau, Alaska.
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historic (1893) and modern (2018) photos of Mendenhall Glacier and Suicide Glacier retreat comparisons
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photo - water in a neighborhood in Juneau, Alaska, Tuesday, Aug. 6, 2024, following an outburst of flooding from a lake dammed by the Mendenhall Glacier.
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ALTGIF
Replied to 𝐃𝐫. 𝕵𝖎𝖇𝖗𝖊𝖊𝖑L ₲Ⱬ₮ 🌍
Public
𝐃𝐫. 𝕵𝖎𝖇𝖗𝖊𝖊𝖑L ₲Ⱬ₮ 🌍

Further north, in #Pakistan 's mountainous province of #GilgitBaltistan, a #heatwave the past week has cause #FlashFlood and #GLOF or a Glacial Lake Outburst Flow, a wall of water that floods down mountains once it's ice wall melts and breaks like a dam.

GLOFs have become "common" in Northern Pakistan in the past decade, washing away infrastructure, towns and farms almost annually.

dawn.com/news/1849999/gb-river

DAWN.COM · GB rivers flood as heatwave melts glaciersBy Jamil Nagri
#ClimateCrisis#ClimateChange#ClimateDiary
Replied to 𝐃𝐫. 𝕵𝖎𝖇𝖗𝖊𝖊𝖑L ₲Ⱬ₮ 🌍
Public
𝐃𝐫. 𝕵𝖎𝖇𝖗𝖊𝖊𝖑L ₲Ⱬ₮ 🌍

As stated above, #SouthAsia has been facing multiple ongoing #Heatwaves

#Pakistan 's #ClimateChange ministry just warned about them in detail, with respect to the country.

At least three heatwaves, and risks of melting glaciers causing #GLOF (Glacial Lake Outburst Flood) and of #ForestFires

This is from just ONE country in South Asia and SEA, home to 230 million souls.

dawn.com/news/1835326/climate-

DAWN.COM · Climate change ministry warns of more heatwaves in JuneBy Jamal Shahid
#ClimateCrisis#ClimateEmergency#Paktodon
Public
Tino Eberl

🌊Der #Klimawandel erhöht das #Risiko von Seetsunamis. Durch den #Temperaturanstieg schmelzen #Gletscher, was die Stabilität von #Bergwänden schwächt und zu #Erdrutschen führt. 🏔️ Diese können in Seen große Wellen auslösen. Forscher warnen vor der wachsenden Gefahr in Regionen wie #Alaska, wo solche Ereignisse zunehmend auftreten.

(nicht zu verwechseln mit #GLOF)

#Klimawandel #Seetsunami #Umweltschutz

phys.org/news/2024-05-lake-tsu

Phys.org · Lake tsunamis pose significant threat under warming climateBy Science X
Public
💧🌏 Greg Cocks

Satellite Imagery Covering Catchments Of Indian Himalayan River Basins Show Significant Changes In Glacial Lakes
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thehindu.com/sci-tech/energy-a <-- shared media article
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isro.gov.in/Satellite_Insights <-- shared technical article
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#GIS #spatial #mapping #water #hydrology #India #Himalayas #remotesensing #earthobservation #ISRO #glacial #lakes #melting #glacialakes #satellite #imagery #climatechange #inventory #change #spatialanalysis #spatiotemporal #glacier #elevation #mountains #moraine #erosion #changeanalysis #environmentalimpacts #glof #flooding #risk #hazard #GlacialLakeOutburstFloods
@ISRO

photo - glacier feeding Ghepang Ghat Glacial Lake
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map - glacial lakes and IHR basins, India Himalayas
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photo - glacial lake in mountainous terrain in Indian Himalayan region
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satellite images - The long-term changes in the Ghepang Ghat Glacial Lake area
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