TY - JOUR

T1 - Physical modelling of arctic coastlines

T2 - Progress and limitations

AU - Korte, Sophia

AU - Gieschen, Rebekka

AU - Stolle, Jacob

AU - Goseberg, Nils

N1 - Funding information: This research received no external funding. The authors gratefully acknowledge support by the German Research Foundation and the Open Access Publication Funds of the Technische Universität Braunschweig. This research received no external funding. The authors gratefully acknowledge support by the German Research Foundation and the Open Access Publication Funds of the Technische Universität Braunschweig. The authors gratefully thank Meerwasseraquaristik Dirk Haase for providing two aquarium coolers as well as the Institute for Geomechanics and Geotechnics for providing the equipment for the experimental temperature control. The authors also thank the anonymous reviewers for their comments and suggestions to improve an earlier version of the manuscript.

PY - 2020/8/11

Y1 - 2020/8/11

N2 - Permafrost coastlines represent a large portion of the world's coastal area and these areas have become increasingly vulnerable in the face of climate change. The predominant mechanism of coastal erosion in these areas has been identified through several observational studies as thermomechanical erosion-a joint removal of sediment through the melting of interstitial ice (thermal energy) and abrasion from incoming waves (mechanical energy). However, further developments are needed looking how common design parameters in coastal engineering (such as wave height, period, sediment size, etc.) contribute to the process. This paper presents the current state of the art with the objective of establishing the necessary research background to develop a process-based approach to predicting permafrost erosion. To that end, an overarching framework is presented that includes all major, erosion-relevant processes, while delineating means to accomplish permafrost modelling in experimental studies. Preliminary modelling of generations zero and one models, within this novel framework, was also performed to allow for early conclusions as to how well permafrost erosion can currently be modelled without more sophisticated setups.

AB - Permafrost coastlines represent a large portion of the world's coastal area and these areas have become increasingly vulnerable in the face of climate change. The predominant mechanism of coastal erosion in these areas has been identified through several observational studies as thermomechanical erosion-a joint removal of sediment through the melting of interstitial ice (thermal energy) and abrasion from incoming waves (mechanical energy). However, further developments are needed looking how common design parameters in coastal engineering (such as wave height, period, sediment size, etc.) contribute to the process. This paper presents the current state of the art with the objective of establishing the necessary research background to develop a process-based approach to predicting permafrost erosion. To that end, an overarching framework is presented that includes all major, erosion-relevant processes, while delineating means to accomplish permafrost modelling in experimental studies. Preliminary modelling of generations zero and one models, within this novel framework, was also performed to allow for early conclusions as to how well permafrost erosion can currently be modelled without more sophisticated setups.

KW - Coastal erosion

KW - Erosion

KW - Experimental modelling

KW - Permafrost

UR - http://www.scopus.com/inward/record.url?scp=85090236259&partnerID=8YFLogxK

U2 - 10.15488/10784

DO - 10.15488/10784

M3 - Article

AN - SCOPUS:85090236259

VL - 12

JO - Water (Switzerland)

JF - Water (Switzerland)

SN - 2073-4441

IS - 8

M1 - 2254

ER -