Extended Data Fig. 2: Sensitivity tests on impacts from an upper bound distance and mesoscale processes.
From: Weak self-induced cooling of tropical cyclones amid fast sea surface warming
a, Temporal evolution of composite sea surface temperature (SST) cooling using different upper bound distances for paired SSTs: 50 km (pink line), 100 km (red line), and 150 km (yellow line). b, Red line corresponds to the result based on the pseudo-Eulerian paired SSTs. Pink line represents SST cooling estimated by requiring paired SSTs to come from measurements by the same drifter, thereby strictly adhering to Lagrangian SST measurements that follow water parcels. c, Red, pink, and yellow lines denote SST cooling with all, fast, and slow pre-TC (tropical cyclone) currents, respectively. In all panels, lines and shaded areas denote mean cooling averaged within 100 km from storm centers and corresponding 95% confidence intervals. Vertical dashed lines indicate the time of TC passage. Little differences are found in these sensitivity tests, indicating that the upper bound distance is appropriate and the impact of mesoscale processes is negligible.
