@article{fdi:010088397, title = {{T}he effects of digital elevation model resolution on the {P}y{FLOWGO} thermorheological lava flow model}, author = {{F}lynn, {I}.{T}.{W}. and {C}hevrel, {M}agdalena {O}ryaelle and {C}rown, {D}.{A}. and {R}amsey, {M}.{S}.}, editor = {}, language = {{ENG}}, abstract = {{T}opography is a fundamental factor influencing the emplacement of lava flows. {W}e assess the impact of topographic resolution on the thermorheological {P}y{FLOWGO} model, specifically with digital elevation model ({DEM}) resolutions commonly available for {E}arth and other planetary bodies where flow modeling is relevant. {W}e examined {P}y{FLOWGO} output parameters (e.g., channel length, core temperature, and flow velocity) to assess model sensitivity to topography in order to document model uncertainties and optimize future application. {T}his study uses rheologic and topographic data from the {T}olbachik, {R}ussia 2012-2013 eruption as model constraints. {U}sing moderate to lower resolution topographic data overestimates the channelized flow length by up to 35% due to differences in the distribution of slopes topographic variability at different resolutions and resulting effects on the modeled lava velocity down channel. {D}etermining the impact of topography on thermorheological lava flow models such as {P}y{FLOWGO} is important to correctly interpret the results for channelized flows.}, keywords = {{RUSSIE} ; {KAMTCHATKA} ; {TOLBACHIK}}, booktitle = {}, journal = {{E}nvironmental {M}odelling and {S}oftware}, volume = {167}, numero = {}, pages = {105768 [12 ]}, ISSN = {1873-6726}, year = {2023}, DOI = {10.1016/j.envsoft.2023.105768}, URL = {https://www.documentation.ird.fr/hor/fdi:010088397}, }