Fig. 2: Spatial distribution of horizontal crystal orientation fabric (COF) anisotropy. | Nature Communications

Fig. 2: Spatial distribution of horizontal crystal orientation fabric (COF) anisotropy.

From: Crystal orientation fabric anisotropy causes directional hardening of the Northeast Greenland Ice Stream

Fig. 2

Depth-averaged difference in horizontal eigenvalues (Δλ) inferred by a radar crosspoint travel-time analysis, b radar beat-signature analysis, c phase-sensitive radio-echo-sounding (pRES) travel-time analysis, and modelled by a d COF evolution model implemented in Elmer/Ice, and e Specfab COF evolution model along a flow line. Both the travel-time analysis of airborne and pRES radar as well as the beat-signature approach, are sensitive to the COF orientation relative to the antenna orientation and should thus be regarded as lower-bound limits, while the results obtained from COF evolution models can be regarded as absolute values. The background shows the satellite-based surface flow velocities64.

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