humanum'avulsion'
#Avulsion #Torsion #AbstractArt #Surreal #ClimateChange #ClimateEmergency #Nature #Deforestation #LoveTrees #ProtectNature #MastoArt #Watercolour #Krita
💧🌏 Greg CocksLate Miocene Euphrates River Drained Into A Partially Desiccated Eastern Mediterranean
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https://doi.org/10.1038/s41561-026-01962-x <-- shared paper
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[the paleogeographic reconstruction is outstanding, including the strength and information conveyed so well in that figure, kudos!]
H/T @lina Jakaitė-Darkšė
“Although the Euphrates River - stretching ~3,000 km across Western Asia - has shaped the region’s geology for millions of years, the timing of its origin and the evolution of its course remain enigmatic. So far, two contrasting hypotheses have been proposed to explain the fluvial system’s Late Neogene path: termination in Anatolia at a palaeo-lake or the Mediterranean, or a southeastward continuation to Arabia. Here [they] use seismic-reflection and topographic data to show that two previously identified sedimentary accumulations - deposited during the terminal phase of the Late Miocene Messinian salinity crisis - resulted from dual riverine systems that drained into a partially desiccated eastern Mediterranean before avulsing toward the Persian Gulf and converging to form the modern Euphrates River. From probabilistic sediment-budget modelling, [they] show that although the latest Messinian drainage basins were an order of magnitude smaller than their present-day extents, the total palaeo-discharge exceeded that of the modern Tigris, Euphrates and Nile rivers combined, indicating intense palaeo-precipitation and high palaeo-relief. These results suggest that plate-margin deformation both controlled the fluvial avulsions that diverted the Euphrates River from the Anatolian–Eurasian Plate to the Arabian Plate, and established the conditions necessary for the development of the alluvial Fertile Crescent…”
#water #hydrology #hydrography #paleogeography #Euphrates #river #Miocene #reconstruction #spatialreconstruction #geology #change #erosion #MiddleEast #spatialanalysis #spatiotemporal #Neogene #Anatolia #paleolake #Mediterranean #Arabia #Messinian #remotesensing #model #modeling #topography #hydrogeomorphology #geomorphology #PersianGulf #sediment #paleodischarge #volume #Tigris #elevation #platetectonics #structuralgeology #platemargin #fluvial #avulsion #FertileCrescent
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https://doi.org/10.1038/s41561-026-01962-x <-- shared paper
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[the paleogeographic reconstruction is outstanding, including the strength and information conveyed so well in that figure, kudos!]
H/T @lina Jakaitė-Darkšė
“Although the Euphrates River - stretching ~3,000 km across Western Asia - has shaped the region’s geology for millions of years, the timing of its origin and the evolution of its course remain enigmatic. So far, two contrasting hypotheses have been proposed to explain the fluvial system’s Late Neogene path: termination in Anatolia at a palaeo-lake or the Mediterranean, or a southeastward continuation to Arabia. Here [they] use seismic-reflection and topographic data to show that two previously identified sedimentary accumulations - deposited during the terminal phase of the Late Miocene Messinian salinity crisis - resulted from dual riverine systems that drained into a partially desiccated eastern Mediterranean before avulsing toward the Persian Gulf and converging to form the modern Euphrates River. From probabilistic sediment-budget modelling, [they] show that although the latest Messinian drainage basins were an order of magnitude smaller than their present-day extents, the total palaeo-discharge exceeded that of the modern Tigris, Euphrates and Nile rivers combined, indicating intense palaeo-precipitation and high palaeo-relief. These results suggest that plate-margin deformation both controlled the fluvial avulsions that diverted the Euphrates River from the Anatolian–Eurasian Plate to the Arabian Plate, and established the conditions necessary for the development of the alluvial Fertile Crescent…”
#water #hydrology #hydrography #paleogeography #Euphrates #river #Miocene #reconstruction #spatialreconstruction #geology #change #erosion #MiddleEast #spatialanalysis #spatiotemporal #Neogene #Anatolia #paleolake #Mediterranean #Arabia #Messinian #remotesensing #model #modeling #topography #hydrogeomorphology #geomorphology #PersianGulf #sediment #paleodischarge #volume #Tigris #elevation #platetectonics #structuralgeology #platemargin #fluvial #avulsion #FertileCrescent
BUFFALO ASK A PUNKOh Shit They’re Going To Kill Us, Avulsion, Plates
The Argyle, Friday, December 12 at 06:00 PM EST
https://buffalo.askapunk.net/event/oh-shit-theyre-going-to-kill-us-avulsion-plates
Arctic River Erosion Linked To Permafrost Thaw
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https://phys.org/news/2024-10-arctic-river-erosion-linked-permafrost.html <-- shared technical article
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https://www.nature.com/articles/s41586-024-07978-w <-- shared paper
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#GIS #spatial #mapping #Alaska #climatechange #water #hydrology #Koyukuk #Yukon #melting #permafrost #erosion #geomorphology #geomorphometry #sedimentology #fluvial #Arctic #spatialanalysis #spatiotemporal #model #modeling #flood #flooding #avulsion #rerouting #thaw #thawing #flow #spring #snowmelt #remotesensing #satellite #imagery #change #migration #soil
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https://phys.org/news/2024-10-arctic-river-erosion-linked-permafrost.html <-- shared technical article
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https://www.nature.com/articles/s41586-024-07978-w <-- shared paper
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#GIS #spatial #mapping #Alaska #climatechange #water #hydrology #Koyukuk #Yukon #melting #permafrost #erosion #geomorphology #geomorphometry #sedimentology #fluvial #Arctic #spatialanalysis #spatiotemporal #model #modeling #flood #flooding #avulsion #rerouting #thaw #thawing #flow #spring #snowmelt #remotesensing #satellite #imagery #change #migration #soil
Arctic river erosion linked to permafrost thaw
Permafrost, the thick layer of perennially frozen ground that covers much of the Arctic, slows down the migration of Arctic rivers, according to a new Caltech study. River migration is a common process in which a river's path meanders over time due to erosion of the riverbanks. This rerouting, which can also occur in sudden floods, poses a threat for many communities that live along and depend on rivers. The findings also have implications for how the Arctic region will be impacted by a warming climate as permafrost thaws over time.
Rules Of River Avulsion Change Downstream
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https://doi.org/10.1038/s41586-024-07964-2 <-- shared paper
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#GIS #spatial #mapping #river #water #hydrology #avulsion #geomorphology #geomorphometry #floodplain #flood #flooding #course #risk #hazard #elevation #topography #hydromorphic #hydrospatial #model #modeling #factors #coast #coastal #mountain #fan #riskassessment #global #spatialanalysis #management #mitigation #prediction #remotesensing #ICESat2 #FABDEM #Copernicus #algorithm #fluvial #alluvial #sediment #alluvium #sediment #machinelearning #graphdata #geostatistics #spatiotemporal
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https://doi.org/10.1038/s41586-024-07964-2 <-- shared paper
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#GIS #spatial #mapping #river #water #hydrology #avulsion #geomorphology #geomorphometry #floodplain #flood #flooding #course #risk #hazard #elevation #topography #hydromorphic #hydrospatial #model #modeling #factors #coast #coastal #mountain #fan #riskassessment #global #spatialanalysis #management #mitigation #prediction #remotesensing #ICESat2 #FABDEM #Copernicus #algorithm #fluvial #alluvial #sediment #alluvium #sediment #machinelearning #graphdata #geostatistics #spatiotemporal
Matt WillemsenAncient earthquake likely rerouted the Ganges River
https://www.science.org/content/article/ancient-earthquake-likely-rerouted-ganges-river #geology #earthquakes #GangesRiver #avulsion #seismite
https://www.science.org/content/article/ancient-earthquake-likely-rerouted-ganges-river #geology #earthquakes #GangesRiver #avulsion #seismite
Kara Finance
Where Rivers Jump Course - First Global Compilation Of River Avulsions
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https://phys.org/news/2022-05-rivers-global-river-avulsions.html <-- shared technical article
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https://dx.doi.org/10.1126/science.abm1215 <-- shared paper
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#GIS #spatial #mapping #river #riverine #remotesensing #satellite #imagery #changecontrol #elevation #DEM #global #catalogue #hydrology #avulsion #spatiotemporal #spatialanalysis #gischat #flood #flooding #fans #storms #delta #erosion #humanimpacts #change #fluvial #geomorphology #topobathy #research #water #watersecurity #navigation #coast #coastal
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https://phys.org/news/2022-05-rivers-global-river-avulsions.html <-- shared technical article
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https://dx.doi.org/10.1126/science.abm1215 <-- shared paper
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#GIS #spatial #mapping #river #riverine #remotesensing #satellite #imagery #changecontrol #elevation #DEM #global #catalogue #hydrology #avulsion #spatiotemporal #spatialanalysis #gischat #flood #flooding #fans #storms #delta #erosion #humanimpacts #change #fluvial #geomorphology #topobathy #research #water #watersecurity #navigation #coast #coastal
Where rivers jump course: First global compilation of river avulsions
Humans have always had a complex relationship with rivers, which both fostered and threatened civilizations throughout history. Just recall Osiris, the ancient Egyptian god of death and rebirth, who was inextricably linked with the annual flooding of the Nile.