FloatCast Home Page

Contents

About

FloatCast is a software tool that aids control of autonomous, buoyancy- controlled floats used in ocean sampling. FloatCast optimizes float dive commands based on analysis of float trajectory predictions that are informed by surface flow forecasting. This website contains information for active float control derived from outputs of this software. Included below are the results of some ocean surface flow forecasts, float trajectory predictions, and optimized float command instruction files. These outputs are organized by FloatCast running conditions.

This work is ongoing.

Acknowledgments

This work is done in collaboration with Zoltan Szuts, Thomas Curtin, and Trevor Harrison from the University of Washington Applied Physics Laboratory, and is supported by ONR grant number N000142112343. For questions, please contact Joseph Tolone: jtolone@umd.edu (University of Maryland, College Park). Joseph Tolone is advised by Derek A. Paley from the University of Maryland, College Park Collective Dynamics and Control Laboratory.

How to Use this Website

The most recent float command file(s) for the active deployment are linked below under "Latest Float Commands". These command file(s) are also posted in the historical logs below with some additional prediction plots. In these logs, FloatCast outputs are grouped according to deployment and software running conditions. Prediction plots, suggested float commands, and other information generated by the FloatCast software are available in each link. The posted output plots and files are updated with each use of FloatCast.

FloatCast Control Mission Log

The current active mission log is linked below.

  • Active Mission Log

    • Latest Float Commands

    The most recent float command file(s) are linked below. Last updated: 12-Apr-2026 17:01:30 (UTC).

  • Latest Float Command(s)

    • Guam: Arcterx2 Deployment -- Active Control, Stochastic Optimization FloatCast Outputs

    Active from February 2025 to present. This deployment was off the coast of Guam in the Philippine Sea. The outputs below are from the stochastic prediction mode. Active optimization of dive commands was performed here, under the constraint that all deep dive depths were set as 2,000 meters. This method of float control was used from 26-February-2026 until present.

  • 12-Apr-2026 17:01:30 (UTC), Output 46
  • 11-Apr-2026 18:21:15 (UTC), Output 45
  • 10-Apr-2026 16:34:46 (UTC), Output 44
  • 09-Apr-2026 14:11:30 (UTC), Output 43
  • 08-Apr-2026 13:53:11 (UTC), Output 42
  • 07-Apr-2026 15:34:23 (UTC), Output 41
  • 06-Apr-2026 13:59:09 (UTC), Output 40
  • 05-Apr-2026 14:21:05 (UTC), Output 39
  • 04-Apr-2026 15:20:24 (UTC), Output 38
  • 03-Apr-2026 14:10:10 (UTC), Output 37
  • 02-Apr-2026 13:16:07 (UTC), Output 36
  • 01-Apr-2026 14:05:32 (UTC), Output 35
  • 31-Mar-2026 13:57:53 (UTC), Output 34
  • 30-Mar-2026 13:49:37 (UTC), Output 33
  • 29-Mar-2026 16:11:16 (UTC), Output 32
  • 28-Mar-2026 16:27:53 (UTC), Output 31
  • 27-Mar-2026 14:08:52 (UTC), Output 30
  • 26-Mar-2026 14:01:40 (UTC), Output 29
  • 25-Mar-2026 14:04:01 (UTC), Output 28
  • 24-Mar-2026 13:19:51 (UTC), Output 27
  • 23-Mar-2026 14:12:37 (UTC), Output 26
  • 22-Mar-2026 17:51:10 (UTC), Output 25
  • 21-Mar-2026 15:50:17 (UTC), Output 24
  • 20-Mar-2026 13:57:16 (UTC), Output 23
  • 19-Mar-2026 13:50:47 (UTC), Output 22
  • 18-Mar-2026 16:12:46 (UTC), Output 21
  • 17-Mar-2026 14:23:19 (UTC), Output 20
  • 16-Mar-2026 14:11:18 (UTC), Output 19
  • 15-Mar-2026 17:54:44 (UTC), Output 18
  • 14-Mar-2026 14:16:38 (UTC), Output 17
  • 13-Mar-2026 14:50:38 (UTC), Output 16
  • 12-Mar-2026 14:01:21 (UTC), Output 15
  • 11-Mar-2026 14:12:56 (UTC), Output 14
  • 10-Mar-2026 13:35:39 (UTC), Output 13
  • 09-Mar-2026 14:08:48 (UTC), Output 12
  • 08-Mar-2026 15:53:45 (UTC), Output 11
  • 07-Mar-2026 18:20:48 (UTC), Output 10
  • 06-Mar-2026 14:59:04 (UTC), Output 9
  • 05-Mar-2026 14:48:30 (UTC), Output 8
  • 04-Mar-2026 15:58:57 (UTC), Output 7
  • 03-Mar-2026 15:22:58 (UTC), Output 6
  • 02-Mar-2026 15:14:55 (UTC), Output 5
  • 01-Mar-2026 19:27:30 (UTC), Output 4
  • 28-Feb-2026 16:59:51 (UTC), Output 3
  • 27-Feb-2026 15:45:11 (UTC), Output 2
  • 26-Feb-2026 22:01:24 (UTC), Output 1

    • Guam: Arcterx2 Deployment -- Deterministic Optimization FloatCast Outputs

    Active from February 2025 to present. This deployment was off the coast of Guam in the Philippine Sea. The outputs below are from the deterministic prediction mode. Active optimization of dive commands was performed here, under the constraint that all deep dive depths were set as 2,000 meters. This method of float control was used from 27-November-2025 through 26-February-2026.

  • 12-Apr-2026 16:49:46 (UTC), Output 137
  • 11-Apr-2026 18:09:47 (UTC), Output 136
  • 10-Apr-2026 16:11:26 (UTC), Output 135
  • 09-Apr-2026 13:58:35 (UTC), Output 134
  • 08-Apr-2026 13:41:58 (UTC), Output 133
  • 07-Apr-2026 15:20:21 (UTC), Output 132
  • 06-Apr-2026 13:48:37 (UTC), Output 131
  • 05-Apr-2026 14:11:12 (UTC), Output 130
  • 04-Apr-2026 15:10:02 (UTC), Output 129
  • 03-Apr-2026 13:55:09 (UTC), Output 128
  • 02-Apr-2026 13:03:39 (UTC), Output 127
  • 01-Apr-2026 13:51:24 (UTC), Output 126
  • 31-Mar-2026 13:46:39 (UTC), Output 125
  • 30-Mar-2026 13:41:55 (UTC), Output 124
  • 29-Mar-2026 16:04:08 (UTC), Output 123
  • 28-Mar-2026 16:01:47 (UTC), Output 122
  • 27-Mar-2026 13:53:43 (UTC), Output 121
  • 26-Mar-2026 13:51:53 (UTC), Output 120
  • 25-Mar-2026 13:53:36 (UTC), Output 119
  • 24-Mar-2026 13:10:12 (UTC), Output 118
  • 23-Mar-2026 14:00:42 (UTC), Output 117
  • 22-Mar-2026 17:42:39 (UTC), Output 116
  • 21-Mar-2026 15:42:10 (UTC), Output 115
  • 20-Mar-2026 13:47:23 (UTC), Output 114
  • 19-Mar-2026 13:39:14 (UTC), Output 113
  • 18-Mar-2026 16:02:56 (UTC), Output 112
  • 17-Mar-2026 14:12:21 (UTC), Output 111
  • 16-Mar-2026 13:59:19 (UTC), Output 110
  • 15-Mar-2026 17:45:46 (UTC), Output 109
  • 14-Mar-2026 14:07:18 (UTC), Output 108
  • 13-Mar-2026 14:39:45 (UTC), Output 107
  • 12-Mar-2026 13:47:52 (UTC), Output 106
  • 11-Mar-2026 13:58:47 (UTC), Output 105
  • 10-Mar-2026 13:25:39 (UTC), Output 104
  • 09-Mar-2026 13:57:03 (UTC), Output 103
  • 08-Mar-2026 15:41:49 (UTC), Output 102
  • 07-Mar-2026 18:12:37 (UTC), Output 101
  • 06-Mar-2026 14:50:31 (UTC), Output 100
  • 05-Mar-2026 14:37:19 (UTC), Output 99
  • 04-Mar-2026 15:47:17 (UTC), Output 98
  • 03-Mar-2026 14:49:22 (UTC), Output 97
  • 02-Mar-2026 14:56:17 (UTC), Output 96
  • 01-Mar-2026 19:13:35 (UTC), Output 95
  • 28-Feb-2026 16:46:55 (UTC), Output 94
  • 27-Feb-2026 15:31:34 (UTC), Output 93
  • 26-Feb-2026 15:11:49 (UTC), Output 92
  • 25-Feb-2026 14:55:20 (UTC), Output 91
  • 24-Feb-2026 14:49:15 (UTC), Output 90
  • 23-Feb-2026 15:09:32 (UTC), Output 89
  • 22-Feb-2026 18:45:48 (UTC), Output 88
  • 21-Feb-2026 19:14:07 (UTC), Output 87
  • 20-Feb-2026 15:16:21 (UTC), Output 86
  • 19-Feb-2026 14:58:04 (UTC), Output 85
  • 18-Feb-2026 15:19:37 (UTC), Output 84
  • 17-Feb-2026 14:48:00 (UTC), Output 83
  • 16-Feb-2026 15:05:03 (UTC), Output 82
  • 15-Feb-2026 16:05:08 (UTC), Output 81
  • 14-Feb-2026 16:02:59 (UTC), Output 80
  • 13-Feb-2026 15:05:45 (UTC), Output 79
  • 12-Feb-2026 14:53:12 (UTC), Output 78
  • 11-Feb-2026 14:27:20 (UTC), Output 77
  • 10-Feb-2026 14:50:13 (UTC), Output 76
  • 09-Feb-2026 14:56:26 (UTC), Output 75
  • 08-Feb-2026 18:15:02 (UTC), Output 74
  • 07-Feb-2026 17:47:20 (UTC), Output 73
  • 06-Feb-2026 15:12:19 (UTC), Output 72
  • 05-Feb-2026 15:18:00 (UTC), Output 71
  • 04-Feb-2026 15:07:10 (UTC), Output 70
  • 03-Feb-2026 15:10:44 (UTC), Output 69
  • 02-Feb-2026 14:42:39 (UTC), Output 68
  • 01-Feb-2026 19:04:16 (UTC), Output 67
  • 31-Jan-2026 16:53:33 (UTC), Output 66
  • 30-Jan-2026 17:05:55 (UTC), Output 65
  • 29-Jan-2026 15:05:33 (UTC), Output 64
  • 28-Jan-2026 15:02:08 (UTC), Output 63
  • 27-Jan-2026 15:00:58 (UTC), Output 62
  • 26-Jan-2026 15:14:52 (UTC), Output 61
  • 25-Jan-2026 16:05:34 (UTC), Output 60
  • 24-Jan-2026 18:29:32 (UTC), Output 59
  • 23-Jan-2026 15:12:18 (UTC), Output 58
  • 22-Jan-2026 15:05:39 (UTC), Output 57
  • 21-Jan-2026 15:08:23 (UTC), Output 56
  • 20-Jan-2026 16:18:51 (UTC), Output 55
  • 19-Jan-2026 15:48:30 (UTC), Output 54
  • 18-Jan-2026 19:19:36 (UTC), Output 53
  • 17-Jan-2026 16:29:50 (UTC), Output 52
  • 16-Jan-2026 14:41:23 (UTC), Output 51
  • 15-Jan-2026 14:56:29 (UTC), Output 50
  • 14-Jan-2026 15:10:29 (UTC), Output 49
  • 13-Jan-2026 15:20:31 (UTC), Output 48
  • 12-Jan-2026 14:54:27 (UTC), Output 47
  • 11-Jan-2026 17:44:09 (UTC), Output 46
  • 10-Jan-2026 15:12:16 (UTC), Output 45
  • 09-Jan-2026 15:19:03 (UTC), Output 44
  • 08-Jan-2026 14:54:58 (UTC), Output 43
  • 07-Jan-2026 15:00:36 (UTC), Output 42
  • 06-Jan-2026 15:01:51 (UTC), Output 41
  • 05-Jan-2026 14:52:27 (UTC), Output 40
  • 04-Jan-2026 17:32:38 (UTC), Output 39
  • 03-Jan-2026 17:22:40 (UTC), Output 38
  • 02-Jan-2026 15:11:04 (UTC), Output 37
  • 01-Jan-2026 14:53:43 (UTC), Output 36
  • 31-Dec-2025 16:56:48 (UTC), Output 35
  • 30-Dec-2025 17:37:09 (UTC), Output 34
  • 29-Dec-2025 16:59:36 (UTC), Output 33
  • 28-Dec-2025 16:21:22 (UTC), Output 32
  • 27-Dec-2025 14:17:57 (UTC), Output 31
  • 26-Dec-2025 15:57:26 (UTC), Output 30
  • 25-Dec-2025 14:51:54 (UTC), Output 29
  • 24-Dec-2025 14:17:00 (UTC), Output 28
  • 23-Dec-2025 14:12:46 (UTC), Output 27
  • 22-Dec-2025 15:12:12 (UTC), Output 26
  • 21-Dec-2025 18:17:08 (UTC), Output 25
  • 20-Dec-2025 15:40:42 (UTC), Output 24
  • 19-Dec-2025 14:55:22 (UTC), Output 23
  • 18-Dec-2025 14:51:17 (UTC), Output 22
  • 17-Dec-2025 14:05:51 (UTC), Output 21
  • 16-Dec-2025 14:56:08 (UTC), Output 20
  • 15-Dec-2025 14:48:24 (UTC), Output 19
  • 14-Dec-2025 17:00:24 (UTC), Output 18
  • 13-Dec-2025 15:12:33 (UTC), Output 17
  • 12-Dec-2025 14:39:10 (UTC), Output 16
  • 11-Dec-2025 14:48:41 (UTC), Output 15
  • 10-Dec-2025 14:39:56 (UTC), Output 14
  • 09-Dec-2025 14:56:26 (UTC), Output 13
  • 08-Dec-2025 14:50:45 (UTC), Output 12
  • 07-Dec-2025 18:37:49 (UTC), Output 11
  • 06-Dec-2025 14:35:49 (UTC), Output 10
  • 05-Dec-2025 14:57:58 (UTC), Output 9
  • 04-Dec-2025 14:54:02 (UTC), Output 8
  • 03-Dec-2025 14:49:11 (UTC), Output 7
  • 02-Dec-2025 14:54:37 (UTC), Output 6
  • 01-Dec-2025 14:47:50 (UTC), Output 5
  • 30-Nov-2025 14:10:46 (UTC), Output 4
  • 29-Nov-2025 14:09:09 (UTC), Output 3
  • 28-Nov-2025 17:00:27 (UTC), Output 2
  • 27-Nov-2025 19:54:54 (UTC), Output 1

    • Guam: Arcterx2 Deployment -- Reference Prediction FloatCast Outputs

    Active from February 2025 to present. This deployment was off the coast of Guam in the Philippine Sea. Below are outputs of FloatCast where commands were fixed to 1,000 meter park depth, approximately 4-day dive duration, with deep dive depth of 2,000 meters. These commands were not applied to the floats; they are included here just as a reference.

  • 12-Apr-2026 16:22:40 (UTC), Output 60
  • 11-Apr-2026 17:54:43 (UTC), Output 59
  • 10-Apr-2026 15:56:57 (UTC), Output 58
  • 09-Apr-2026 13:38:53 (UTC), Output 57
  • 08-Apr-2026 13:33:13 (UTC), Output 56
  • 07-Apr-2026 15:12:48 (UTC), Output 55
  • 06-Apr-2026 13:35:21 (UTC), Output 54
  • 05-Apr-2026 13:52:58 (UTC), Output 53
  • 04-Apr-2026 15:00:39 (UTC), Output 52
  • 03-Apr-2026 13:39:16 (UTC), Output 51
  • 02-Apr-2026 12:45:58 (UTC), Output 50
  • 01-Apr-2026 13:40:33 (UTC), Output 49
  • 31-Mar-2026 13:37:01 (UTC), Output 48
  • 30-Mar-2026 13:32:35 (UTC), Output 47
  • 29-Mar-2026 15:50:00 (UTC), Output 46
  • 28-Mar-2026 15:46:01 (UTC), Output 45
  • 27-Mar-2026 13:41:36 (UTC), Output 44
  • 26-Mar-2026 13:41:26 (UTC), Output 43
  • 25-Mar-2026 13:43:30 (UTC), Output 42
  • 24-Mar-2026 12:59:21 (UTC), Output 41
  • 23-Mar-2026 13:38:12 (UTC), Output 40
  • 22-Mar-2026 17:32:36 (UTC), Output 39
  • 21-Mar-2026 15:15:56 (UTC), Output 38
  • 20-Mar-2026 13:37:58 (UTC), Output 37
  • 19-Mar-2026 13:29:39 (UTC), Output 36
  • 18-Mar-2026 15:52:51 (UTC), Output 35
  • 17-Mar-2026 14:01:48 (UTC), Output 34
  • 16-Mar-2026 13:47:35 (UTC), Output 33
  • 15-Mar-2026 17:21:01 (UTC), Output 32
  • 14-Mar-2026 13:17:22 (UTC), Output 31
  • 13-Mar-2026 14:29:30 (UTC), Output 30
  • 12-Mar-2026 13:36:39 (UTC), Output 29
  • 11-Mar-2026 13:45:53 (UTC), Output 28
  • 10-Mar-2026 13:13:45 (UTC), Output 27
  • 09-Mar-2026 13:42:46 (UTC), Output 26
  • 08-Mar-2026 15:16:28 (UTC), Output 25
  • 07-Mar-2026 18:02:39 (UTC), Output 24
  • 06-Mar-2026 14:40:31 (UTC), Output 23
  • 05-Mar-2026 14:12:55 (UTC), Output 22
  • 04-Mar-2026 15:33:54 (UTC), Output 21
  • 03-Mar-2026 14:37:00 (UTC), Output 20
  • 02-Mar-2026 14:40:30 (UTC), Output 19
  • 01-Mar-2026 19:02:46 (UTC), Output 18
  • 28-Feb-2026 16:21:50 (UTC), Output 17
  • 27-Feb-2026 15:13:41 (UTC), Output 16
  • 26-Feb-2026 14:55:59 (UTC), Output 15
  • 25-Feb-2026 14:41:40 (UTC), Output 14
  • 24-Feb-2026 14:36:09 (UTC), Output 13
  • 23-Feb-2026 14:51:50 (UTC), Output 12
  • 22-Feb-2026 18:33:53 (UTC), Output 11
  • 21-Feb-2026 18:57:48 (UTC), Output 10
  • 20-Feb-2026 14:42:11 (UTC), Output 9
  • 19-Feb-2026 14:45:43 (UTC), Output 8
  • 18-Feb-2026 14:59:18 (UTC), Output 7
  • 17-Feb-2026 14:35:17 (UTC), Output 6
  • 16-Feb-2026 14:53:38 (UTC), Output 5
  • 15-Feb-2026 15:50:52 (UTC), Output 4
  • 14-Feb-2026 15:45:12 (UTC), Output 3
  • 13-Feb-2026 14:46:57 (UTC), Output 2
  • 12-Feb-2026 14:41:36 (UTC), Output 1


    • Published with MATLAB® R2024b