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Table 3 Input values for the FLOWGO (e.g., Mossoux et al. 2016; Chevrel et al. 2018) modelling

From: Thermal impacts of basaltic lava flows to buried infrastructure: workflow to determine the hazard

Parameter Value Source/Justification
Down-flow increment 10 m  
Slope Varies between 1.4 to 1.9° Local topography
Channel width Varies between 26 and 54 m MOLASSES modelling
Channel depth Varies between 17.5 and 19.2 m MOLASSES modelling
Viscosity 1000 Pa s default
Emissivity 0.95 Patrick et al. (2004)
Thermal conductivity 4.85 W/m°C Tsang et al. (2019b)
Basal temperature 891 °C Tsang et al. (2019b)
Core to base distance 20% Nowak (1995)
Eruptive temperature 1200 °C Kereszturi et al. (2014a)
Crustal temperature 827 °C Tsang et al. (2019b)
Buffer 140 °C Default
Crustal cover 0.6 Default
Crust to velocity relationship −0.00756 Default
DRE density 2650 kg/m3 Kereszturi et al. (2014a)
Vesicularity 0.15 Kereszturi et al. (2014a)
Bulk density 2490 kg/m3 Kereszturi et al. (2014a)
Wind speed 5.1 m/s Hayes et al. (2018)
Ch 0.0036 Default
Air temperature 15.9 °C CliFlo (2019)
Air density 1.22 kg/m3  
Air specific heat 1006  
Phenocryst content 0.15 Kereszturi et al. (2012)
Crystals grown during cooling 0.9  
Cooling range 300 °C Default
Latent heat of crystallisation 3.5 × 105 Default
r 1.51 Default