Crevasse (Glaciology 🗻)
A crevasse is a deep crack that forms in a glacier or ice sheet. Crevasses form as a result of the movement and resulting stress associated with the shear stress generated when two semi-rigid pieces above a plastic substrate have different rates of movement. The resulting intensity of the shear stress causes a breakage along the faces.
💪 Randklufts may not be as famous as other glacier features, but they’re a reminder that our world’s ice is changing—and fast. But we can act now to slow these changes. Together, we can still protect what’s left.
📸 Photo: Coronium / Wikimedia Commons
#Glacierwatch #Randkluft #Explained #Explainer #Crevasse #Glacier #Glaciology #Geology
Underwater #robot finds new circulation pattern in #Antarctic ice shelf https://phys.org/news/2023-10-underwater-robot-circulation-pattern-antarctic.html
Direct observations of #melting, freezing, and #OceanCirculation in an ice shelf basal crevasse https://www.science.org/doi/10.1126/sciadv.adi7638
"The remotely operated #Icefin robot's climb up and down a crevasse... revealed a new circulation pattern—a jet funneling water sideways through the #crevasse—in addition to rising and sinking currents, and diverse #IceFormations shaped by shifting flows and temperatures."
More than merely cracks in the ice, crevasses play an important role in circulating seawater beneath Antarctic ice shelves, potentially influencing their stability, finds Cornell University-led research based on a first-of-its-kind exploration by an underwater robot.
24 septembre 2022
Terre d'argile
Terre assoiffée
Crevasse dans mon ventre
Sécheresse dans ma bouche
Terre et corps liés
Nécessité
#photodujour #journalphoto #defi #quotidien #artiste #photographe #pictureoftheday #photodiary #challenge #artist #photographer #crevasse #terre #secheresse #manque #argile #noiretblanc #earth #ground #blackandwhite
#clay #crack #dryness #lack #photo
orange crevasse...