REP14 highlights and numbers

REP14 highlights and numbers

As refered in a previous post   REP14 - Atlantic  stands for Recognized Environmental Picture (REP) Atlantic 2014, and was a joint exercise of the Portuguese Navy, the NATO Centre for Maritime Research and Experimentation (CMRE), and the University of Porto, through the Laboratório de Sistemas e Tecnologia Subaquática (LSTS). 

This exercise was conducted at the Lisbon naval base and of the coasts of Sesimbra and Sines, Portugal. The exercise was focused on evaluating, testing, and demonstrating tools and technologies for persistent operations of collaborative underwater, surface and air vehicles in mine hunting, oceanography, expeditionary hydrography, search and rescue, environmental knowledge, maritime security and harbour protection. 

Supporting these operations, were the ships NRP Pegaso, NRP Auriga, and the submarine NRP Arpão from the Portuguese Navy, and the NATO Research Vessel Alliance.
Some of the highlights of the experiment were:

  • Inter-operated underwater and radio communication networks were used for multi-vehicle coordination and control with support for disruptive tolerant networking
  • Long range AUVs provided support for 24+ operations
  • Deliberative on-board planning capabilities provide unprecedented levels of autonomy.
  • Deliberative planning techniques were also used to support coordinated planning and execution control of multiple vehicles
  • Unmanned air vehicles were used as communication relays and also for tasking autonomous underwater vehicles
  • USBL techniques were used for localization and tracking of multiple targets
  • Launch and recovery of autonomous underwater vehicles from NRP Arpão was done at sea as a first step towards automating the launch and recovery process from manned submarines.

Other relevant aspects of this experiment was the number of hours of operation, and area covered. The tables below provide a good overview of the capacities and robustness  of our AUV's.


Distance Traveled Hours of Operation Average Speed MultiBeam (area) Side Scan (area) CTD

Weeks 1 and 2


10.642 km

2h59m30s 0.98 m/s - - -


21.646 km

7h49m37s 0.77 m/s - -

31 579 m²



100.695 km

28h2m15s 1 m/s - - 242 514 m²



50.235 km

14h11m27s 1.01 m/s

184461 m² 

945620 m²

359 800 m²


88.298 km 23h44m31s 0.96 m/s - 681400 m² -



168.607 km 56h31m13s 0.82 m/s - 344600 m² -



440.125 km

- - 184461 m² 1.97 km² 633 893 m²





Distance Traveled


Hours of Operation

Week 3 - Aboard the Alliance




53.41 Km






127.73 km






181.15 km


The participants of REP14-Atlantic included the University of Rome (Italy), the Naval Undersea Warfare Center (USA), the College of Charleston (USA), the Royal Institute of Technology and the companies Evologics (Germany) and Oceanscan (Portugal).