Numerical Simulation of Supraglacial Debris Mobility: Implications for Ablation and Landform Genesis

نویسندگان

چکیده

Supraglacial debris does not remain fixed atop ablating ice, but can move across the ice surface as supraglacial topography evolves. This active movement (distinct from passive due to underlying motion) affects landform genesis well rate and spatial distribution of ablation. While observations transport evolving are abundant, models these coupled processes over timescales decades longer few. Here I adapt a numerical model ablation downslope simulate evolution an idealized debris-covered glacier on timescale complete de-icing. The includes that depends thickness hillslope-scale function scales non-linearly with slope angle. Ice evolve time, allowing simulation de-icing construction in test-section. produces relief leads topographic inversions consistent conceptual hummocky genesis. Model results indicate postglacial hummocks depend relationship between characteristic for transport, which is defined index mobility. When mobility high, rapid subdued. low, more pronounced produced, remains An intermediate appears optimize both de-icingcompared highly-mobile immobile debris. enhancement could contribute observed anomalous rates some glaciers.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

simulation and design of electronic processing circuit for restaurants e-procurement system

the poor orientation of the restaurants toward the information technology has yet many unsolved issues in regards to the customers. one of these problems which lead the appeal list of later, and have a negative impact on the prestige of the restaurant is the case when the later does not respond on time to the customers’ needs, and which causes their dissatisfaction. this issue is really sensiti...

15 صفحه اول

simulation and experimental studies for prediction mineral scale formation in oil field during mixing of injection and formation water

abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...

Run-out Effects of Debris Flows Based on Numerical Simulation

Debris flows are a common natural disaster in mountainous areas and often cause severe casualties and property loss. Debris-flow run-out effects analysis can provide an idea of the spatial risks posed to the downstream area of a debris flow, which is extremely important for local populations’ lives, disaster mitigation and planning the layout of economic construction. The objective of this stud...

متن کامل

ذخیره 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: Frontiers in Earth Science

سال: 2021

ISSN: ['2296-6463']

DOI: https://doi.org/10.3389/feart.2021.710131