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Progress in Earth and Planetary Science
Fig. 3 | Progress in Earth and Planetary Science

Fig. 3

From: An introductory review of the thermal structure of subduction zones: II—numerical approach and validation

Fig. 3

Convergence analysis for the 1D Poisson problem with P1 (blue) and P2 (orange) elements. The error following metric (32) is shown as a function of nodal point spacing h. Symbols represent individual experiments—the lines show the trend. With P1 we find second-order convergence, whereas with P2 we find a smaller error at a given h and a faster, third-order, convergence rate

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