#physicalgeography — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #physicalgeography, aggregated by home.social.
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Detection And Mapping Of Daya Features In The Limestone Plateau Of Northwest Egypt
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https://doi.org/10.1177/03091333261480882 <-- shared paper
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https://doi.org/10.1007/s41207-024-00477-4 <-- shared paper
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H/T @wael Galal | Geologist at Geology Department, Assiut University
“[The author’s] study systematically investigates ‘DAYAS’ shallow, ephemeral wetlands scattered across the limestone plateau of Northwest Egypt. Previously undocumented in Egyptian territory, these saucer-shaped depressions play a vital role in regional hydrology and karst evolution.
Through an integrated approach combining Sentinel-2 satellite imagery, multi-decadal Landsat time-series analysis (1984-2025), ALOS PALSAR DEMs, and extensive field validation, [they] identified and mapped 5,430 daya features covering 258.1 km² achieving 91% classification accuracy.
[Their] research established a typological framework distinguishing bowl-shaped, small flat-bottom, and large flat-bottom dayas representing a continuum from active karst dissolution to relict, sediment-sealed systems. Critically, [they] documented a 32.63% net increase in daya surface area over 41 years, demonstrating that karst modification remains an active geomorphic process even under present-day hyper-arid conditions.
This work provides government agencies and water resource planners with the first high-resolution spatial inventory of these features essential baseline data for sustainable groundwater management, water-harvesting infrastructure, and conservation prioritisation in this water-scarce region…”
#Research #KarstGeomorphology #RemoteSensing #GIS #spatial #mapping #spatialanalysis #spatiotemporal #WaterResources #Egypt #Dayas #Sustainability #PhysicalGeography #water #hydrology #hydrography #wetland #daya #geology #limestone #karst #sentinel #Landsat #hydrogeomorphology #geomorphology #geomorphometry #arid #hyperarid #planning #policy #sustainable #groundwater #conservation -
Detection And Mapping Of Daya Features In The Limestone Plateau Of Northwest Egypt
--
https://doi.org/10.1177/03091333261480882 <-- shared paper
--
https://doi.org/10.1007/s41207-024-00477-4 <-- shared paper
--
H/T @wael Galal | Geologist at Geology Department, Assiut University
“[The author’s] study systematically investigates ‘DAYAS’ shallow, ephemeral wetlands scattered across the limestone plateau of Northwest Egypt. Previously undocumented in Egyptian territory, these saucer-shaped depressions play a vital role in regional hydrology and karst evolution.
Through an integrated approach combining Sentinel-2 satellite imagery, multi-decadal Landsat time-series analysis (1984-2025), ALOS PALSAR DEMs, and extensive field validation, [they] identified and mapped 5,430 daya features covering 258.1 km² achieving 91% classification accuracy.
[Their] research established a typological framework distinguishing bowl-shaped, small flat-bottom, and large flat-bottom dayas representing a continuum from active karst dissolution to relict, sediment-sealed systems. Critically, [they] documented a 32.63% net increase in daya surface area over 41 years, demonstrating that karst modification remains an active geomorphic process even under present-day hyper-arid conditions.
This work provides government agencies and water resource planners with the first high-resolution spatial inventory of these features essential baseline data for sustainable groundwater management, water-harvesting infrastructure, and conservation prioritisation in this water-scarce region…”
#Research #KarstGeomorphology #RemoteSensing #GIS #spatial #mapping #spatialanalysis #spatiotemporal #WaterResources #Egypt #Dayas #Sustainability #PhysicalGeography #water #hydrology #hydrography #wetland #daya #geology #limestone #karst #sentinel #Landsat #hydrogeomorphology #geomorphology #geomorphometry #arid #hyperarid #planning #policy #sustainable #groundwater #conservation -
Detection And Mapping Of Daya Features In The Limestone Plateau Of Northwest Egypt
--
https://doi.org/10.1177/03091333261480882 <-- shared paper
--
https://doi.org/10.1007/s41207-024-00477-4 <-- shared paper
--
H/T @wael Galal | Geologist at Geology Department, Assiut University
“[The author’s] study systematically investigates ‘DAYAS’ shallow, ephemeral wetlands scattered across the limestone plateau of Northwest Egypt. Previously undocumented in Egyptian territory, these saucer-shaped depressions play a vital role in regional hydrology and karst evolution.
Through an integrated approach combining Sentinel-2 satellite imagery, multi-decadal Landsat time-series analysis (1984-2025), ALOS PALSAR DEMs, and extensive field validation, [they] identified and mapped 5,430 daya features covering 258.1 km² achieving 91% classification accuracy.
[Their] research established a typological framework distinguishing bowl-shaped, small flat-bottom, and large flat-bottom dayas representing a continuum from active karst dissolution to relict, sediment-sealed systems. Critically, [they] documented a 32.63% net increase in daya surface area over 41 years, demonstrating that karst modification remains an active geomorphic process even under present-day hyper-arid conditions.
This work provides government agencies and water resource planners with the first high-resolution spatial inventory of these features essential baseline data for sustainable groundwater management, water-harvesting infrastructure, and conservation prioritisation in this water-scarce region…”
#Research #KarstGeomorphology #RemoteSensing #GIS #spatial #mapping #spatialanalysis #spatiotemporal #WaterResources #Egypt #Dayas #Sustainability #PhysicalGeography #water #hydrology #hydrography #wetland #daya #geology #limestone #karst #sentinel #Landsat #hydrogeomorphology #geomorphology #geomorphometry #arid #hyperarid #planning #policy #sustainable #groundwater #conservation -
Detection And Mapping Of Daya Features In The Limestone Plateau Of Northwest Egypt
--
https://doi.org/10.1177/03091333261480882 <-- shared paper
--
https://doi.org/10.1007/s41207-024-00477-4 <-- shared paper
--
H/T @wael Galal | Geologist at Geology Department, Assiut University
“[The author’s] study systematically investigates ‘DAYAS’ shallow, ephemeral wetlands scattered across the limestone plateau of Northwest Egypt. Previously undocumented in Egyptian territory, these saucer-shaped depressions play a vital role in regional hydrology and karst evolution.
Through an integrated approach combining Sentinel-2 satellite imagery, multi-decadal Landsat time-series analysis (1984-2025), ALOS PALSAR DEMs, and extensive field validation, [they] identified and mapped 5,430 daya features covering 258.1 km² achieving 91% classification accuracy.
[Their] research established a typological framework distinguishing bowl-shaped, small flat-bottom, and large flat-bottom dayas representing a continuum from active karst dissolution to relict, sediment-sealed systems. Critically, [they] documented a 32.63% net increase in daya surface area over 41 years, demonstrating that karst modification remains an active geomorphic process even under present-day hyper-arid conditions.
This work provides government agencies and water resource planners with the first high-resolution spatial inventory of these features essential baseline data for sustainable groundwater management, water-harvesting infrastructure, and conservation prioritisation in this water-scarce region…”
#Research #KarstGeomorphology #RemoteSensing #GIS #spatial #mapping #spatialanalysis #spatiotemporal #WaterResources #Egypt #Dayas #Sustainability #PhysicalGeography #water #hydrology #hydrography #wetland #daya #geology #limestone #karst #sentinel #Landsat #hydrogeomorphology #geomorphology #geomorphometry #arid #hyperarid #planning #policy #sustainable #groundwater #conservation -
Detection And Mapping Of Daya Features In The Limestone Plateau Of Northwest Egypt
--
https://doi.org/10.1177/03091333261480882 <-- shared paper
--
https://doi.org/10.1007/s41207-024-00477-4 <-- shared paper
--
H/T @wael Galal | Geologist at Geology Department, Assiut University
“[The author’s] study systematically investigates ‘DAYAS’ shallow, ephemeral wetlands scattered across the limestone plateau of Northwest Egypt. Previously undocumented in Egyptian territory, these saucer-shaped depressions play a vital role in regional hydrology and karst evolution.
Through an integrated approach combining Sentinel-2 satellite imagery, multi-decadal Landsat time-series analysis (1984-2025), ALOS PALSAR DEMs, and extensive field validation, [they] identified and mapped 5,430 daya features covering 258.1 km² achieving 91% classification accuracy.
[Their] research established a typological framework distinguishing bowl-shaped, small flat-bottom, and large flat-bottom dayas representing a continuum from active karst dissolution to relict, sediment-sealed systems. Critically, [they] documented a 32.63% net increase in daya surface area over 41 years, demonstrating that karst modification remains an active geomorphic process even under present-day hyper-arid conditions.
This work provides government agencies and water resource planners with the first high-resolution spatial inventory of these features essential baseline data for sustainable groundwater management, water-harvesting infrastructure, and conservation prioritisation in this water-scarce region…”
#Research #KarstGeomorphology #RemoteSensing #GIS #spatial #mapping #spatialanalysis #spatiotemporal #WaterResources #Egypt #Dayas #Sustainability #PhysicalGeography #water #hydrology #hydrography #wetland #daya #geology #limestone #karst #sentinel #Landsat #hydrogeomorphology #geomorphology #geomorphometry #arid #hyperarid #planning #policy #sustainable #groundwater #conservation -
LETTER: More climate disasters prompt need for action | Letters To The Editor https://www.byteseu.com/2343555/ #animal #atmosphere #change #Climate #ClimateChange #ClimateVariabilityAndChange #EarthSciences #EnvironmentalImpact #EnvironmentalImpactOfFossilFuels #EnvironmentalImpactsOfAnimalAgriculture #EnvironmentalIssues #GlobalEnvironmentalIssues #GlobalNaturalEnvironment #GlobalWarming #HumanImpactOnTheEnvironment #ImpactsOfHumanActivities #NaturalEnvironment #PhysicalGeography #SocietalCollapse
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Preparing for the 41st Bridger Ridge Run
http://www.bozemandailychronicle.com offers audio versions of articles using Instaread. …
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Environment #Airpollution #airqualityindex #atmosphere #bridgerrange #climatechange #climatevariabilityandchange #environmentalissues #humanimpactontheenvironment #impactsofhumanactivities #naturalenvironment #physicalgeography #Ridge #Science #smoke #weather #Wildfire
https://www.newsbeep.com/us/812901/ -
Idaho Now Offering Master Gardener Online | Preston Citizen https://www.allforgardening.com/1930578/idaho-now-offering-master-gardener-online-preston-citizen/ #Bark(botany) #BehaviorModification #botany #cognition #conifer #EarthSciences #EasternMeadowVole #education #GardeningIdaho #girdling #gopher #HumanCommunication #idaho #Kingdoms(biology) #lawn #learning #NaturalEnvironment #pedagogy #Pest(organism) #PhysicalGeography #Pine #plants #Rodent #rodenticide #soil #Spruce #tree #Vole #WinterStorm
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Remote Sensing And The New Global River Science
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https://doi.org/10.1038/s44221-026-00665-2 <-- shared paper
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“Rivers impact the well-being of humans and the environment. As they increasingly face planetary-scale stressors, it is critically important to monitor and understand rivers at the global scale. As the only synoptic resource for global primary data on rivers, satellite remote sensing has recently begun to provide unprecedented opportunities for the monitoring, understanding, and prediction of global river behaviour. Despite these advances, the role of satellite remote sensing in global river science has still not been fully explored. New satellite systems and algorithms will enable substantial improvements in river measurements, provide new answers to long-standing or newly emerging scientific questions, and eventually update basic knowledge of rivers to advance global river science. In this [paper they] explore how remote sensing has been used to study the world’s rivers, examine challenges and opportunities for further advancing our understanding of rivers using existing and upcoming sensors, and identify possible solutions and future research directions…”
#GIS #spatial #mapping #water #hydrology #satellite #remotsesensing #earthobservation #hydrography #spatialanalysis #spatiotemporal #physicalgeography #change #river #global #model #modeling #research #hydrogeomorphology #geomorphometry #riverine #humanimpacts #waterquality #waterresources #watermanagement #infrastructure #lake #reservoir #dam #impoundment #canals #avulsion #overbank #flood #flooding #erosion #sedimentation #morphology #network #downstream -
Record-breaking temperatures in Europe | Regional/National Headlines
(CNN) — The U…
#Europe #EU #atmosphere #celsius #climate #climatechange #climatevariabilityandchange #drowning #earthsciences #environmentalimpact #environmentalimpactoffossilfuels #environmentalissues #fahrenheit #France #globalenvironmentalissues #heat #heatwave #humanimpactontheenvironment #MetOffice #naturalenvironment #physicalgeography #societalcollapse #temperature #UnitedKingdom
https://www.europesays.com/europe/78568/ -
Master Gardener: The good and bad of snow in your garden | Lifestyles https://www.allforgardening.com/1546639/master-gardener-the-good-and-bad-of-snow-in-your-garden-lifestyles/ #AppliedAndInterdisciplinaryPhysics #clouds #EarthPhenomena #EarthSciences #FogAndPrecipitation #FormsOfWater #frost #garden #gardener #gardening #hail #ice #IceCrystal #MeteorologicalPhenomena #meteorology #nature #PhysicalGeography #precipitation #snow #snowflake #tree #WaterIce #WilsonBentley #WinterPhenomena
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Researchers slightly lower study’s estimate of drop in global income due to climate change | Business https://www.byteseu.com/1607740/ #atmosphere #change #Climate #ClimateChange #ClimateVariabilityAndChange #EarthSciences #economy #EnvironmentalImpact #EnvironmentalImpactOfFossilFuels #EnvironmentalIssues #GlobalEnvironmentalIssues #GlobalNaturalEnvironment #GlobalWarming #HumanImpactOnTheEnvironment #NaturalEnvironment #nature #PhysicalGeography #SocietalCollapse
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Houses & Homes: Heatwave gardening advice – Don’t mow the lawn! | Houses Homes https://www.allforgardening.com/1345846/houses-homes-heatwave-gardening-advice-dont-mow-the-lawn-houses-homes/ #agriculture #botany #drought #EarthSciences #garden #gardening #HeatStroke #HeatWave #horticulture #irrigation #landscape #lawn #Mower #Mulch #NaturalEnvironment #PhysicalGeography #PlantAgriculture #plants #poaceae #PrimarySectorOfTheEconomy #water #xeriscaping