India has big plans to remove silt from rivers, alarming scientists Dredging and mining sediments increases flood risks and threatens infrastructure, researchers say

[1/8] L'article examine les impacts des politiques indiennes de gestion des sédiments himalayens. Les scientifiques alertent sur les risques liés au dragage de réservoirs et à l’extraction de sables dans une région parmi les plus érosives du monde. #geography #sedimentdynamics #floodrisk #Himalaya

Global dredging distribution

[8/8] En s’oxydant, ce carbone peut produire du CO₂, encore peu intégré aux bilans climatiques. Les auteurs concluent que le dragage est paradoxalement à la fois un risque environnemental et un possible outil d’adaptation côtière. #geography #sedimentdynamics #sealevelrise #NorthSea

Dredging and dumping impact coastal fluxes of sediment and organic carbon - Nature Communications Dredging and dumping in the North Sea strongly disturb sediment and carbon fluxes, affecting coastal Blue Carbon systems. Global estimates show these activities rival natural fluxes and should be incl...

[1/8] Des chercheurs du Helmholtz Center Hereon analysent l’impact massif du dragage en mer du Nord. L’étude montre comment l’extraction de sable et le rejet de vases déplacent les sédiments, modifiant durablement les équilibres côtiers. #geography #sedimentdynamics #sealevelrise #NorthSea

Online first articles | Asociación Ibérica de Limnología (AIL)

Look, another first online manuscript published in #Limnetica. #Hydrology, #WaterChemistry, and #SedimentDynamics of #FluvialEcosystems of Venezuela: A systematic review. By: José E. Rincón jerincon.bsky.social and colleagues. Full access: www.limnetica.net/en/limnetica...

Sinkites Are Strange Bodies of Sand Beneath the Sea, and They’re Breaking the Laws of Geology Learn how hundreds of “sinkites,” all around a kilometer across, are altering the strata in the North Sea.

Sinkites Are Strange Bodies of Sand Beneath the Sea, and They’re Breaking the Laws of Geology #Science #EarthSciences #Geology #MarineScience #SedimentDynamics

Top four panels: regional M2 tidal current ellipticity for 17 ka BP (top left) through to present day (top right, 00 ka BP). Bottom three panels: temporal evolution of M2 tidal current ellipticity at the Celtic Deep (bottom left), Western Irish Sea Mud Belt (bottom middle), and Fladen Ground (bottom right). The solid vertical bars in each of the bottom panels illustrate one standard deviation about the mean (solid lines) and the dashed vertical lines show the calibrated radiocarbon ages of sediment samples from cores taken within each respective depocenter.

[5/5] Cette méthode innovante permet de localiser des réservoirs de carbone bleu invisibles en surface. Elle fournit un outil précieux pour protéger ces milieux fragiles et mieux orienter les décisions d’aménagement dans les zones côtières. #geography #bluecarbon #coastalmanagement #sedimentdynamics

Grateful to Kristen Cook for an enlightening talk on Himalayan sediment dynamics, using Bhotekoshi, South Lonak, & Thame GLOFs as case studies. Fascinating insights on how small glacial lake outbursts transport massive sediment loads in steep Himalayan corridors. #Himalayas #SedimentDynamics #GLOFs