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#landslide

3 posts3 participants0 posts today
Public
The Watershed

Landslide fallout continues as a civil suit is filed in BC Court, this evening in The Watershed: lionsbaywatershed.ca/post/land

The Watershed · Landslide Fallout ContinuesCivil action filed in BC CourtThe Village of Lions Bay has been named as a plaintiff in a civil action related to last December’s deadly Battani Creek landslide.Other plaintiffs identified in the action filed last week in BC Supreme Court are the province of British Columbia and Steven Vestergaard, the owner of the property located above the landslide area on which a water reservoir had been built. The suit was filed on behalf of Michael Enns and Jody Dyer, the children of Barbara and David Enns
#LionsBayWatershed#Landslide#BattaniCreek
Public *
💧🌏 Greg Cocks

Kinematic Evolution Of A Large Paraglacial Landslide In The Barry Arm Fjord Of Alaska
--
doi.org/10.1029/2023JF007119 <-- shared paper
--
doi.org/10.5066/P9EUCGJQ <-- shared technical article
--
sciencebase.gov/catalogMaps/ma <-- shared web mapping service
--
#GIS #spatial #mapping #massmovement #landslide #engineeringgeology #remotesensing #sitespecific #LiDAR #iFSAR #paraglacial #kinematics #mapping #monitoring #spatialanalysis #spatiotemporal #fedscience #risk #hazard #glacier #retreat #climatechange #Alaska #BarryArm #fjord #hazardassessment #tsunami #wave #BarryGlacier #change #sensors #fieldwork #surveillance #melting #permafrost #Whittier #geophysics #geology #Alaska #geomorphometry #deglaciating
@USGS

Continued thread
Public
AI6YR Ben

This would make a wicked time lapse photo location, though you'd probably have to use a high precision GPS to align where you put the camera every day. 4 inches per day I think the lady said in the video... Amazed it all doesn't run straight to the sea in one fell swoop. #disasters #landslide #PalosVerdes

Public
💧🌏 Greg Cocks

Identification Of Geothermal Anomalies From Landsat Derived Land Surface Temperature, Mount Meager Volcanic Complex, British Columbia, Canada
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doi.org/10.1016/j.rse.2025.114 <-- shared paper
--
“Highlights:
• A novel method for detecting geothermal components from solar energy dominated LST.
• Using LST time series to eliminate temporal variant solar energy input.
• Uncertainty in anomaly identification quantified by probability measure.
• Capable of revealing LST anomalies caused by geothermal, anthropogenic and surface processes..."
#GIS #spatial #mapping #britishcolumbia #BC #solar #geothermal #remotesensing #earthobservation #LST #spatialanalysis #spatiotemporal #naturalresources #volcanic #geology #geostatistics #landsurfacetemperature #satellite #geothermalheatflux #GHF #energybalance #calculation #model #MountMeager #Landsat #landsat8 #hotspring #landslide #massmovement #engineeringgeology #spring #seep #anthropogenic #HEP #hydropower #monitoring #risk #hazard

photo - sampling a fumerole, Job Glacier, Mount Meager, British Columbia, Canada
Inverted resistivity model from AMT data showing the subsurface rock resistivity structure in South Mount Meager (figure modified from Hormozzade Ghalati et al., 2022). a) resistivity slice at 500 m elevation (asl) showing two distinct high conductive anomalies and locations of the cross sections. Cross sections b) and c) in W-E direction, and d) and e) in N-S direction. Anomaly C1 is spatially in accordance with the occurrence of hot-warm spring swarms along the margin of the volcanic complex. Anomaly C2 appears in a circular shape, coincident spatially with the core area of the known deep geothermal prospect.
a) Map showing the location of Mount Meager Volcanic Complex (MMVC) and its relationship with the Garibaldi Volcanic Belt in western Canada (modified from Stewart, 2002). BR (Bridge River), CC (Mt. Cayley), EV (Elaho Valley), MG (Mt. Garibaldi), MC (Mountain Creek), WP (Watts Point). The red rectangular marks the study area. b, a Landsat-8 colour image (2017-07-18) showing details of the study area by a summer view of the MMVC with glacier (blue) at high altitude and vegetation cover (green) along the river valley. The red circle indicates locations of geothermal exploration wells, and orange polygons, the known hot springs.
Enlarged GHF anomaly maps and Google images explaining some of the possible anthropogenic and natural causes of high LST anomalies: a) GHF component of East Meager Anomaly; b) Google Earth image showing hydro-power station related facilities, and open quarries for local construction and road maintenance; c) GHF component of North Meager; d) Google Earth image showing a possible landslide site coincident with the anomalies.
Public
CBC Indigenous

Tŝilhqot'in National Government calls for change to land, water management in wake of 2024 B.C. landslide
On July 30, a landslide in Nagwentled, also known as Farwell Canyon, blocked the Chilcotin River in B.C.'s Interior, a vital stream for salmon, for six days. 
#landslide #environment #politics #water #Nagwentled #FarwellCanyon
cbc.ca/news/canada/british-col

Public
CBC British Columbia

Tŝilhqot'in National Government calls for change to land, water management in wake of 2024 B.C. landslide
On July 30, a landslide in Nagwentled, also known as Farwell Canyon, blocked the Chilcotin River in B.C.'s Interior, a vital stream for salmon, for six days. 
#landslide #environment #politics #water #Nagwentled #FarwellCanyon
cbc.ca/news/canada/british-col

Public
CBC Canada

Tŝilhqot'in National Government calls for change to land, water management in wake of 2024 B.C. landslide
On July 30, a landslide in Nagwentled, also known as Farwell Canyon, blocked the Chilcotin River in B.C.'s Interior, a vital stream for salmon, for six days. 
#landslide #environment #politics #water #Nagwentled #FarwellCanyon
cbc.ca/news/canada/british-col

Public
Global News

Massive Chilcotin River landslide response revealed shortfalls: First Nation report
The Tsilhqot'in National Government's report says it had to overcome "jurisdictional confusion," and that the province "struggled" to share information about the slide.
#landslide #government #report #Environment #ChilcotinRiverlandslide #ChilcotinRiverLandslideUpdate
globalnews.ca/news/11033353/ma

Public
Global News Environment

Massive Chilcotin River landslide response revealed shortfalls: First Nation report
The Tsilhqot'in National Government's report says it had to overcome "jurisdictional confusion," and that the province "struggled" to share information about the slide.
#landslide #government #report #Environment #ChilcotinRiverlandslide #ChilcotinRiverLandslideUpdate
globalnews.ca/news/11033353/ma

Public *
💧🌏 Greg Cocks

Grfin Tools—User Guide And Methods For Modeling Landslide Runout And Debris-Flow Growth And Inundation
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pubs.usgs.gov/publication/tm14 <-- shared USGS publication
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code.usgs.gov/grfintools/grfin <-- shared USGS software release
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H/T Jonathan Perkins USGS
[ another open source resource for everyone from the USGS ~smile~ ]
#GIS #spatial #mapping #opensource #openlibrary #Grfin #software #package #regional #debrisflow #engineeringgeology #geology #inundation #spatialanalysis #spatiotemporal #geophysics #geophysical #massmovement #landslide #lahar #volcano #rock #avalanche #model #modeling #statistical #geostatistics #water #hydrology #downstream #elevation #remotesensing #DEM #flow #runout #risk #hazard #tools #slope #erosion #drainage #network #channel #channelisation #userguide
@USGS

screen shot - grfintools software repository home page (https://code.usgs.gov/grfintools/grfintools)
report figure 2 - Schematic flowchart illustrating common pathways for using Grfin Tools with examples identified in orange boxes
report figure 1 - Perspective view of topography illustrating the potential locations for three types of mass movements that can be derived from a Grfin Tools analysis.
USGS report cover page - Grfin Tools—User Guide And Methods For Modeling Landslide Runout And Debris-Flow Growth And Inundation
Public
Nicole Sharp

Predicting Landslide Speeds

Knowing what speed a landslide will reach helps us predict how much damage they can cause. That speed depends on many factors: the steepness of the terrain, the sliding distance, the thickness of the flowing layer, and the type of grains making up the flow. Researchers found that predictions from previous studies often underestimated the speeds reached by thicker flows. Through laboratory experiments with grains of different shapes, a team found that those models mistakenly assumed a fully-developed flow — in other words, one where the grains have reached a constant final speed. While spherical grains reach that state over a short sliding distance, that’s not the case for other grains.

Instead, the team used their results to build a new predictive model for landslide speeds. This one still depends on incline angle and flow thickness, but it also uses a dynamical friction coefficient to describe the granular material and capture how the flow’s speed varies with distance down the incline. (Image credit: W. Hasselmann; research credit: Y. Wu et al.; via APS News)

A small landslide on a rocky slope.
#avalanche#fluidDynamics#geophysics
Public
grechaw

The slide is very big, hard to photograph. The roadbed is there but nothing else - the next atmospheric river will probably knock out the asphalt this week.

So very typical. Human efforts are ever so transient. Fun fact - this iconic bicycle route was originally cut as a WPA project.

A landslide has undermined a road on a steep curve. Asphalt to the left, police tape, and muck, muck, trees to the right and down.
#photography#landslide#sonomacounty
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