LCS Analysis and Forecasts for 17 Aug 1200Z to 18 Aug 0000Z 2017, Issued 17 Aug 2017

The following figures show the FTLEs in the domain, at different times. These FTLE computations are for a time window of 1 or 6 hours for the forecast of 17 August 2017 to 18 August 2017. The window center shifts in 1 hour intervals. The flow maps were calculated using a PDE based approach by using 5th order spatial and 3rd order temporal schemes, and a novel composition based approach.

As a reminder, 12:00Z = 08:00 EDT, i.e., local time is 4 hours behind Zulu time.

0 m


South Beach, Martha's Vineyard Modeling Domain (200 m resolution, Implicit-2-way Nested)

0 m - Backward FTLE - 1 hour interval from 17 Aug 1200Z to 18 Aug 0000Z 2017

Time Window 12:00Z 13:00Z 14:00Z 15:00Z 16:00Z 17:00Z 18:00Z 19:00Z 20:00Z 21:00Z
1-hour window backward_zoom_0000cm_01hr_frame001.png
backward_zoom_0000cm_01hr_frame002.png
backward_zoom_0000cm_01hr_frame003.png
backward_zoom_0000cm_01hr_frame004.png
backward_zoom_0000cm_01hr_frame005.png
backward_zoom_0000cm_01hr_frame006.png
backward_zoom_0000cm_01hr_frame007.png
backward_zoom_0000cm_01hr_frame008.png
backward_zoom_0000cm_01hr_frame009.png
backward_zoom_0000cm_01hr_frame010.png
6-hour window backward_zoom_0000cm_06hr_frame001.png
backward_zoom_0000cm_06hr_frame002.png
backward_zoom_0000cm_06hr_frame003.png
backward_zoom_0000cm_06hr_frame004.png
backward_zoom_0000cm_06hr_frame005.png
backward_zoom_0000cm_06hr_frame006.png
backward_zoom_0000cm_06hr_frame007.png
backward_zoom_0000cm_06hr_frame008.png
backward_zoom_0000cm_06hr_frame009.png
backward_zoom_0000cm_06hr_frame010.png

0 m - Forward FTLE - 1 hour interval from 17 Aug 1200Z to 18 Aug 0000Z 2017

Time Window 12:00Z 13:00Z 14:00Z 15:00Z 16:00Z 17:00Z 18:00Z 19:00Z 20:00Z 21:00Z
1-hour window forward_zoom_0000cm_01hr_frame001.png
forward_zoom_0000cm_01hr_frame002.png
forward_zoom_0000cm_01hr_frame003.png
forward_zoom_0000cm_01hr_frame004.png
forward_zoom_0000cm_01hr_frame005.png
forward_zoom_0000cm_01hr_frame006.png
forward_zoom_0000cm_01hr_frame007.png
forward_zoom_0000cm_01hr_frame008.png
forward_zoom_0000cm_01hr_frame009.png
forward_zoom_0000cm_01hr_frame010.png
6-hour window forward_zoom_0000cm_06hr_frame001.png
forward_zoom_0000cm_06hr_frame002.png
forward_zoom_0000cm_06hr_frame003.png
forward_zoom_0000cm_06hr_frame004.png
forward_zoom_0000cm_06hr_frame005.png
forward_zoom_0000cm_06hr_frame006.png
forward_zoom_0000cm_06hr_frame007.png
forward_zoom_0000cm_06hr_frame008.png
forward_zoom_0000cm_06hr_frame009.png
forward_zoom_0000cm_06hr_frame010.png

Drifter Trajectory Forecast for 17 Aug 1200Z to 18 Aug 1200Z 2017, Issued 17 Aug 2017

Central Forecast

The following figures show the trajectories in the domain, at different times. The drifters are released at every 10 grid points. The grid has a model resolution of 200m. These trajectory computations are for a time window of 1 hour for the forecast of 17 Aug 1200Z to 18 Aug 1200Z 2017 (17 Aug 0800 EDT to 18 Aug 0800 EDT 2017). The window center shifts in 1 hour intervals.

As a reminder, 12:00Z = 08:00 EDT, i.e., local time is 4 hours behind Zulu time.

Depth, Domain, and Window 13:00Z 14:00Z 15:00Z 16:00Z 17:00Z 18:00Z 19:00Z 20:00Z 21:00Z 22:00Z 23:00Z
Depth: 0m;
South Beach
modeling domain;
01hr window
../../../Drifter/Trajectories/Central/Aug17_8am_zoom/central_zoom2_color_0000cm_01hr_20170817_1300.png
../../../Drifter/Trajectories/Central/Aug17_8am_zoom/central_zoom2_color_0000cm_01hr_20170817_1400.png
../../../Drifter/Trajectories/Central/Aug17_8am_zoom/central_zoom2_color_0000cm_01hr_20170817_1500.png
../../../Drifter/Trajectories/Central/Aug17_8am_zoom/central_zoom2_color_0000cm_01hr_20170817_1600.png
../../../Drifter/Trajectories/Central/Aug17_8am_zoom/central_zoom2_color_0000cm_01hr_20170817_1700.png
../../../Drifter/Trajectories/Central/Aug17_8am_zoom/central_zoom2_color_0000cm_01hr_20170817_1800.png
../../../Drifter/Trajectories/Central/Aug17_8am_zoom/central_zoom2_color_0000cm_01hr_20170817_1900.png
../../../Drifter/Trajectories/Central/Aug17_8am_zoom/central_zoom2_color_0000cm_01hr_20170817_2000.png
../../../Drifter/Trajectories/Central/Aug17_8am_zoom/central_zoom2_color_0000cm_01hr_20170817_2100.png
../../../Drifter/Trajectories/Central/Aug17_8am_zoom/central_zoom2_color_0000cm_01hr_20170817_2200.png
../../../Drifter/Trajectories/Central/Aug17_8am_zoom/central_zoom2_color_0000cm_01hr_20170817_2300.png