Marine ice-cliff instability modeling shows mixed-mode ice-cliff failure and yields calving rate parameterization
نویسندگان
چکیده
منابع مشابه
Potential Antarctic Ice Sheet retreat driven by hydrofracturing and ice cliff failure
a r t i c l e i n f o a b s t r a c t Keywords: ice sheet Antarctica sea level subglacial basin ice cliff hydrofracture Geological data indicate that global mean sea level has fluctuated on 10 3 to 10 6 yr time scales during the last ∼25 million years, at times reaching 20 m or more above modern. If correct, this implies substantial variations in the size of the East Antarctic Ice Sheet (EAIS)....
متن کاملParameterization for subgrid-scale motion of ice-shelf calving fronts
A parameterization for the motion of ice-shelf fronts on a Cartesian grid in finite-difference land-ice models is presented. The scheme prevents artificial thinning of the ice shelf at its edge, which occurs due to the finite resolution of the model. The intuitive numerical implementation diminishes numerical dispersion at the ice front and enables the application of physical boundary condition...
متن کاملCliff hangers
The peregrine falcon holds a special place in the minds of environmentalists and conservation biologists. The crash in its population throughout the 1950s and 60s was linked to the rapidly increasing use of agricultural organochlorine pesticides which led to a thinning of the birds’ eggshells and dramatic breeding failure. Since the widespread ban on the use of these chemicals, populations have...
متن کاملCliff hanger
The asparagus season has recently ended for northern hemisphere crops. Tradition has it that, at the summer solstice, growers stop cutting spears to allow the plant to grow and produce enough resources to generate spears for the next spring’s crop. The plant is becoming increasingly fashionable and production is increasing to meet demand. But the cultivated asparagus has a wild relative that is...
متن کاملA physically based 3-Dmodel of ice cliff evolution over debris-covered glaciers
We use high-resolution digital elevation models (DEMs) from unmanned aerial vehicle (UAV) surveys to document the evolution of four ice cliffs on the debris-covered tongue of Lirung Glacier, Nepal, over one ablation season. Observations show that out of four cliffs, three different patterns of evolution emerge: (i) reclining cliffs that flatten during the ablation season; (ii) stable cliffs tha...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature Communications
سال: 2021
ISSN: 2041-1723
DOI: 10.1038/s41467-021-23070-7