SG652 In Distress Glider Reachability Map
Forecast for 02 Apr 0000Z to 09 Apr 0000Z 2024, Issued 02 Apr 2024

Special Product Issued for Enric Pallas Sanz (CICESE)

This SG652 glider has been in distress since March 17 and in this reachability forecast, it is assumed to be diving/rising between 0-1000m without generating significant horizontal thrust (effectively drifting with the forecast currents, starting within a circle of uncertainty).

The black contours shown are reachability front forecasts, at 6 hour intervals (0hr to 168hr forecasts, with increasing line thickness for later times). The reachability front is the boundary of the largest set (the reachable set) that the glider can reach within that duration. It is computed by numerically solving our exact governing PDE for this time-optimal reachability front.

The forecasts use MSEAS current forecasts that were initialized Apr01 0Z, and the plots show our reachability prediction. Note that the atmospheric forcing is a forecast from Apr01 and it is a bit coarse. Finally, we don't model wave/windage effects on the glider.

For the center and right plots, the reachability fronts are colored by time: darker, thicker lines represent later times.

SG 652 Starting Location: 20.9492°N, 85.5820°W	SG 652 (Reachability by time) Starting Location: 20.9492°N, 85.5820°W	SG 652 (Reachability by time, zoomed) Starting Location: 20.9492°N, 85.5820°W
0-1000m Avg Velocity Background	0-1000m Avg Velocity Background	0-1000m Avg Velocity Background