MSEAS EM-APEX Float Reachability Forecast for 24 May 0000Z to 03 Jun 0000Z 2025, Issued 27 May 2025

This is a float reachability forecast, for a planned release on 24 May 0000Z, starting from the initial time of the PE forecast (which covers the period May 24 - Jun 03).

Starting points are located in cyclonic Loop Current (LC) Frontal Eddy (FE) centers on 24 May 0000Z (the initial time), as determined from water mass analyses. All runs assume 3 cm/s velocity unc., and run for 10 days.

In the plots below, the overlaid velocity vectors are those that the float "sees". This is a single velocity field constructed assuming that the float does two up/down profiles a day (0 to 1500m), each taking 8.5 hours and spends the rest of the day (7 hours) "parked" at 1500m.  The resultant velocity field consists of the 17/24*(0-1500m vertically averaged velocity) + 7/24*(1500m velocity) field.

The float starting in the northwest cyclonic LCFE is forecast to mainly advect northeast along the northwest flank of the LC, while the float starting in the east LCFE is forecast to move slightly southward but remain entrained in the eddy.

Start point Animations 20250524 20250525 20250526 20250527 20250528 20250529 20250530 20250531 20250601 20250602 20250603
Northwest LCFE Movie nse1_vel3_v2_001.png nse1_vel3_v2_002.png nse1_vel3_v2_003.png nse1_vel3_v2_004.png nse1_vel3_v2_005.png nse1_vel3_v2_006.png nse1_vel3_v2_007.png nse1_vel3_v2_008.png nse1_vel3_v2_009.png nse1_vel3_v2_010.png nse1_vel3_v2_011.png
East LCFE Movie nse2_vel3_v2_001.png nse2_vel3_v2_002.png nse2_vel3_v2_003.png nse2_vel3_v2_004.png nse2_vel3_v2_005.png nse2_vel3_v2_006.png nse2_vel3_v2_007.png nse2_vel3_v2_008.png nse2_vel3_v2_009.png nse2_vel3_v2_010.png nse2_vel3_v2_011.png

Initial Fields with Start Points

Depth (m) σT T
150 ccnt_SigmaT0150mFull_GomR25deg008_001.gif
ccnt_T0150mFull_GomR25deg008_001.gif
500 ccnt_SigmaT0500mFull_GomR25deg008_001.gif
ccnt_T0500mFull_GomR25deg008_001.gif
1000 ccnt_SigmaT1000mFull_GomR25deg008_001.gif
ccnt_T1000mFull_GomR25deg008_001.gif