#alaskan — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #alaskan, aggregated by home.social.
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NEWS & OFFERS: BA to allow phone calls onboard, Alaskan unveils London business class and 10-20% Nectar bonus
BA to allow phone and video calls on board When I heard that BA had signed up for…
#London #UnitedKingdom #UK #GB #England #Headlines #News #Europe #EU #alaskan #avios #Britain #BritishAirways #britishairwaysexecutiveclub #businessclass #GreatBritain #london #Nectar #oneworld
https://www.europesays.com/uk/867614/ -
https://www.europesays.com/uk/867614/ NEWS & OFFERS: BA to allow phone calls onboard, Alaskan unveils London business class and 10-20% Nectar bonus #alaskan #avios #Britain #BritishAirways #BritishAirwaysExecutiveClub #BusinessClass #England #GreatBritain #london #Nectar #oneworld #UK #UnitedKingdom
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#USpol #GeoPol, #Russia, #US, #WarInUkraine #Trump, #Putin
*👉The #Alaskan #NothingBurger? 👈*
A 🧵While some political commentators have called the Trump-Putin summit in #Alaska a "nothing burger." --*I* beg to differ.
The event has ostensibly been a summit without any tangible results. However, the general public or even the NATO allies not knowing the terms or the agreements does not mean that there hasn't been an agreement.
These commentators overlook the fact, though that #Trump + #Putin
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#Trump putting together proposals to incentivize Putin to reach #peace deal including #exploiting #Ukrainian #minerals, sanctions relief, access to #Alaskan resources
That Trump could greenlight Russia’s #exploitation of mineral-dense regions has baffled & alarmed experts
It will mean international law does not exist & global relations will transform not even to #realpolitik, but #Squid Game
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Climate-Driven #SeaLevelRise Exacerbates #Alaskan and #Cascadian #Tsunami Hazards in Southern California: Implications to Design Parameters
by Ignacio Sepúlveda, Andrew Mosqueda
First published: 11 March 2025
Abstract
"Tsunami hazards in Southern California are expected to be exacerbated by the #ClimateChange driven sea level rise (#SLR). Two key questions are how relevant is this exacerbation and whether tsunami design parameters are significantly affected. We perform a non-stationary probabilistic tsunami hazard assessment (nPTHA) in the Southern California bays of San Pedro and San Diego, with consideration of tsunamis generated by earthquakes in the Alaska-Aleutians (#ASZ) and Cascadia subduction zones (#CSZ). We evaluate the changes of the maximum considered tsunami (#MCT) design parameter, defined as a tsunami intensity that is exceeded with a 2% probability in 50 years. MCT elevation maps in the bays are calculated incorporating tides and SLR by means of a surrogate model. MCT elevations at assessed sites in San Pedro Bay and San Diego yield 2 m. The nPTHA shows that tsunamis generated in the ASZ zone are more hazardous in Southern California than those from the CSZ when evaluating MCT intensities. A comparison of scenarios with and without SLR also shows an increase of the MCT elevations of more than a foot in San Pedro Bay and San Diego, demonstrating that SLR causes a relevant impact, comparable to the influence of tides. The effect of SLR increasing MCT values is also comparable to the sensitivity of nPTHA results to some common earthquake epistemic uncertainties, such as the slip marginal distribution. Future tsunami hazard maps shall incorporate SLR when exposure times are long, as well as the uncertainty of tsunamigenic earthquake properties."
Key Points- Earthquakes in Alaska and Cascadia subduction zones produce tsunami hazards in Southern California that are exacerbated by sea level rise
- The elevation of maximum considered tsunamis (MCT) in San Pedro Bay and San Diego grow by more than a foot when SLR influence is included
- The impact of Alaskan earthquake epistemic uncertainties on MCT elevations in Southern California is similar to that of the sea level rise
Plain Language Summary
"Climate-change-driven sea level rise is expected to worsen tsunami hazards in the long term. Tsunami waves will be able to propagate over rising sea levels that will enable them to inundate higher land. In this study, we quantify the increase of tsunami hazards in Southern California due to sea level rise. We consider tsunamis originated in the Alaska and Cascadia subduction zones. Changes of tsunami design parameters, as a result of the sea level rise, are also analyzed. Namely, we analyze the changes of the 'maximum considered tsunami' (MCT) elevation, defined as the elevation exceeded with probability 2% in 50 years. We find that earthquakes of the Alaska Subduction Zone constitute the main #tsunamigenic contributor. We also find that sea level rise increases MCT tsunami elevations by 0.3 m. With this increase, MCT levels reach 2 m in San Pedro Bay and San Diego. We compare the impact of sea level rise exacerbating tsunami hazards with the impact of common uncertainty sources of tsunami hazard assessment models. The uncertainty of earthquake models, for example, can produce differences in MCT levels that are comparable to the SLR influence."
Source:
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024EF005435#ClimateCrisis #ClimateCatastrophe #TsunamiRisks #SeaLevelRise
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Climate-Driven #SeaLevelRise Exacerbates #Alaskan and #Cascadian #Tsunami Hazards in Southern California: Implications to Design Parameters
by Ignacio Sepúlveda, Andrew Mosqueda
First published: 11 March 2025
Abstract
"Tsunami hazards in Southern California are expected to be exacerbated by the #ClimateChange driven sea level rise (#SLR). Two key questions are how relevant is this exacerbation and whether tsunami design parameters are significantly affected. We perform a non-stationary probabilistic tsunami hazard assessment (nPTHA) in the Southern California bays of San Pedro and San Diego, with consideration of tsunamis generated by earthquakes in the Alaska-Aleutians (#ASZ) and Cascadia subduction zones (#CSZ). We evaluate the changes of the maximum considered tsunami (#MCT) design parameter, defined as a tsunami intensity that is exceeded with a 2% probability in 50 years. MCT elevation maps in the bays are calculated incorporating tides and SLR by means of a surrogate model. MCT elevations at assessed sites in San Pedro Bay and San Diego yield 2 m. The nPTHA shows that tsunamis generated in the ASZ zone are more hazardous in Southern California than those from the CSZ when evaluating MCT intensities. A comparison of scenarios with and without SLR also shows an increase of the MCT elevations of more than a foot in San Pedro Bay and San Diego, demonstrating that SLR causes a relevant impact, comparable to the influence of tides. The effect of SLR increasing MCT values is also comparable to the sensitivity of nPTHA results to some common earthquake epistemic uncertainties, such as the slip marginal distribution. Future tsunami hazard maps shall incorporate SLR when exposure times are long, as well as the uncertainty of tsunamigenic earthquake properties."
Key Points- Earthquakes in Alaska and Cascadia subduction zones produce tsunami hazards in Southern California that are exacerbated by sea level rise
- The elevation of maximum considered tsunamis (MCT) in San Pedro Bay and San Diego grow by more than a foot when SLR influence is included
- The impact of Alaskan earthquake epistemic uncertainties on MCT elevations in Southern California is similar to that of the sea level rise
Plain Language Summary
"Climate-change-driven sea level rise is expected to worsen tsunami hazards in the long term. Tsunami waves will be able to propagate over rising sea levels that will enable them to inundate higher land. In this study, we quantify the increase of tsunami hazards in Southern California due to sea level rise. We consider tsunamis originated in the Alaska and Cascadia subduction zones. Changes of tsunami design parameters, as a result of the sea level rise, are also analyzed. Namely, we analyze the changes of the 'maximum considered tsunami' (MCT) elevation, defined as the elevation exceeded with probability 2% in 50 years. We find that earthquakes of the Alaska Subduction Zone constitute the main #tsunamigenic contributor. We also find that sea level rise increases MCT tsunami elevations by 0.3 m. With this increase, MCT levels reach 2 m in San Pedro Bay and San Diego. We compare the impact of sea level rise exacerbating tsunami hazards with the impact of common uncertainty sources of tsunami hazard assessment models. The uncertainty of earthquake models, for example, can produce differences in MCT levels that are comparable to the SLR influence."
Source:
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024EF005435#ClimateCrisis #ClimateCatastrophe #TsunamiRisks #SeaLevelRise
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Climate-Driven #SeaLevelRise Exacerbates #Alaskan and #Cascadian #Tsunami Hazards in Southern California: Implications to Design Parameters
by Ignacio Sepúlveda, Andrew Mosqueda
First published: 11 March 2025
Abstract
"Tsunami hazards in Southern California are expected to be exacerbated by the #ClimateChange driven sea level rise (#SLR). Two key questions are how relevant is this exacerbation and whether tsunami design parameters are significantly affected. We perform a non-stationary probabilistic tsunami hazard assessment (nPTHA) in the Southern California bays of San Pedro and San Diego, with consideration of tsunamis generated by earthquakes in the Alaska-Aleutians (#ASZ) and Cascadia subduction zones (#CSZ). We evaluate the changes of the maximum considered tsunami (#MCT) design parameter, defined as a tsunami intensity that is exceeded with a 2% probability in 50 years. MCT elevation maps in the bays are calculated incorporating tides and SLR by means of a surrogate model. MCT elevations at assessed sites in San Pedro Bay and San Diego yield 2 m. The nPTHA shows that tsunamis generated in the ASZ zone are more hazardous in Southern California than those from the CSZ when evaluating MCT intensities. A comparison of scenarios with and without SLR also shows an increase of the MCT elevations of more than a foot in San Pedro Bay and San Diego, demonstrating that SLR causes a relevant impact, comparable to the influence of tides. The effect of SLR increasing MCT values is also comparable to the sensitivity of nPTHA results to some common earthquake epistemic uncertainties, such as the slip marginal distribution. Future tsunami hazard maps shall incorporate SLR when exposure times are long, as well as the uncertainty of tsunamigenic earthquake properties."
Key Points- Earthquakes in Alaska and Cascadia subduction zones produce tsunami hazards in Southern California that are exacerbated by sea level rise
- The elevation of maximum considered tsunamis (MCT) in San Pedro Bay and San Diego grow by more than a foot when SLR influence is included
- The impact of Alaskan earthquake epistemic uncertainties on MCT elevations in Southern California is similar to that of the sea level rise
Plain Language Summary
"Climate-change-driven sea level rise is expected to worsen tsunami hazards in the long term. Tsunami waves will be able to propagate over rising sea levels that will enable them to inundate higher land. In this study, we quantify the increase of tsunami hazards in Southern California due to sea level rise. We consider tsunamis originated in the Alaska and Cascadia subduction zones. Changes of tsunami design parameters, as a result of the sea level rise, are also analyzed. Namely, we analyze the changes of the 'maximum considered tsunami' (MCT) elevation, defined as the elevation exceeded with probability 2% in 50 years. We find that earthquakes of the Alaska Subduction Zone constitute the main #tsunamigenic contributor. We also find that sea level rise increases MCT tsunami elevations by 0.3 m. With this increase, MCT levels reach 2 m in San Pedro Bay and San Diego. We compare the impact of sea level rise exacerbating tsunami hazards with the impact of common uncertainty sources of tsunami hazard assessment models. The uncertainty of earthquake models, for example, can produce differences in MCT levels that are comparable to the SLR influence."
Source:
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024EF005435#ClimateCrisis #ClimateCatastrophe #TsunamiRisks #SeaLevelRise
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Climate-Driven #SeaLevelRise Exacerbates #Alaskan and #Cascadian #Tsunami Hazards in Southern California: Implications to Design Parameters
by Ignacio Sepúlveda, Andrew Mosqueda
First published: 11 March 2025
Abstract
"Tsunami hazards in Southern California are expected to be exacerbated by the #ClimateChange driven sea level rise (#SLR). Two key questions are how relevant is this exacerbation and whether tsunami design parameters are significantly affected. We perform a non-stationary probabilistic tsunami hazard assessment (nPTHA) in the Southern California bays of San Pedro and San Diego, with consideration of tsunamis generated by earthquakes in the Alaska-Aleutians (#ASZ) and Cascadia subduction zones (#CSZ). We evaluate the changes of the maximum considered tsunami (#MCT) design parameter, defined as a tsunami intensity that is exceeded with a 2% probability in 50 years. MCT elevation maps in the bays are calculated incorporating tides and SLR by means of a surrogate model. MCT elevations at assessed sites in San Pedro Bay and San Diego yield 2 m. The nPTHA shows that tsunamis generated in the ASZ zone are more hazardous in Southern California than those from the CSZ when evaluating MCT intensities. A comparison of scenarios with and without SLR also shows an increase of the MCT elevations of more than a foot in San Pedro Bay and San Diego, demonstrating that SLR causes a relevant impact, comparable to the influence of tides. The effect of SLR increasing MCT values is also comparable to the sensitivity of nPTHA results to some common earthquake epistemic uncertainties, such as the slip marginal distribution. Future tsunami hazard maps shall incorporate SLR when exposure times are long, as well as the uncertainty of tsunamigenic earthquake properties."
Key Points- Earthquakes in Alaska and Cascadia subduction zones produce tsunami hazards in Southern California that are exacerbated by sea level rise
- The elevation of maximum considered tsunamis (MCT) in San Pedro Bay and San Diego grow by more than a foot when SLR influence is included
- The impact of Alaskan earthquake epistemic uncertainties on MCT elevations in Southern California is similar to that of the sea level rise
Plain Language Summary
"Climate-change-driven sea level rise is expected to worsen tsunami hazards in the long term. Tsunami waves will be able to propagate over rising sea levels that will enable them to inundate higher land. In this study, we quantify the increase of tsunami hazards in Southern California due to sea level rise. We consider tsunamis originated in the Alaska and Cascadia subduction zones. Changes of tsunami design parameters, as a result of the sea level rise, are also analyzed. Namely, we analyze the changes of the 'maximum considered tsunami' (MCT) elevation, defined as the elevation exceeded with probability 2% in 50 years. We find that earthquakes of the Alaska Subduction Zone constitute the main #tsunamigenic contributor. We also find that sea level rise increases MCT tsunami elevations by 0.3 m. With this increase, MCT levels reach 2 m in San Pedro Bay and San Diego. We compare the impact of sea level rise exacerbating tsunami hazards with the impact of common uncertainty sources of tsunami hazard assessment models. The uncertainty of earthquake models, for example, can produce differences in MCT levels that are comparable to the SLR influence."
Source:
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024EF005435#ClimateCrisis #ClimateCatastrophe #TsunamiRisks #SeaLevelRise
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As a former #Alaskan who lived there 16 years, I am dismayed that knowledgeable Republicans are not trying to contain the idiotic behavior happening in Washington DC regarding #Denali. Here is a good article with the Alaskan view. I would make one correction, the #Native people have been there for millennia, not centuries. Denali is the mountain’s name. #Alaska #NativeAmerican #NativePeople #Athabascan https://apnews.com/article/trump-alaska-denali-mckinley-name-39c6e735fc56f4046200259cfe9e9934
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https://www.wacoca.com/videos/2386977/travel-thirsty/ Travel Thirsty: New York City Food – The BEST ALASKAN KING CRAB DISHES Brooklyn Seafood NYC #ALASKAN #AlaskanKingCrab #brooklyn #ChiliCrab #ChilliCrab #City #crab #CrabClaws #CrabLegs #CrabMiso #CrabRoe #dishes #food #FriedCrab #GiantCrab #King #KingCrab #NewYork #NewYorkCity #NewYorkCityStreetFood #NewYorkStreetFood #nyc #seafood #SteamedCrab #Thirsty #travel #TravelThirsty #TravelThirsty #Vlog #Vlogger #York #YouTube #YouTuber
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#BritishColumbia #FirstNations are initiating an #emergency #salmon #TaskForce to investigate the impact on the #sockeye salmon due to last week’s #Chilcotin River #landslide.
“Chilcotin Rivers are kind of our identity,” Nits’ilʔin (Chief) Francis Laceese, Tl’esqox said at a press conference on Tuesday.
“Same with the salmon, you know, that’s basically who we are. That’s our biggest food source.”
#Tŝilhqotin National Government (TNG) is calling on all levels of government, downstream First Nations, the #PacificSalmonCommission, and other nations and states, especially #Alaskan #fisheries, to take all precautionary measures possible to conserve Tŝilhqot’in territory-bound salmon, and to immediately cease from fisheries that may impact these stocks, until the impacts from the landslide and breach are fully understood.
A massive landslide came down last Wednesday, damming the Chilcotin River, which leads into the #FraserRiver
https://globalnews.ca/news/10683723/b-c-landslide-first-nation-emergency-salmon-task-force/
#Indigenous #NativeBC #BCpoli #CDNpoli #ClimateAction #ClimateCrisis #NaturalDisasters #ThisIsNotFine #WildSalmonAlliance #WildFirst #NatureFirst #SaveWildSalmon #wildlife #environmental #ecological #ecosystems #Cascadia #PacificNorthwest #PNW #BCsalmon
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It’s five minutes to #Midnight : Medium
#Alaskan rivers turning orange due to #ClimateChange, study finds : Guardian
#Innovative #Cancer #Therapies offer new #Hope : Nature
Check our latest #KnowledgeLinks
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Grateful to my #PublicLibrary which hosts ebooks on #Hoopla Just now, I am lucky enought to be starting #KateAtkinson ʼs #JacksonBrodie number 2 "One Good Turn" #mysteryfiction which was recommended by my favorite (and #Alaskan) writer #DanaStabenow.
