Saab Seaeye Falcon ROV Reveals Mystery of Red Lake in Croatia

Set in a sheer-sided bowl of rock, accessible by climbing gear alone, the Red Lake in Croatia has never revealed the secret of its depths.

Now, mountaineering skills and a Saab Seaeye Falcon ROV will offer the first ever insight into the third largest sinkhole lake in the world.

Many attempts to survey the lake have failed, even thwarting an earlier team of underwater specialists.

No one knows how deep it is, nor how it is fed, or if it is connected to other water systems.

A ray-finned fish, particular to the lake, sometimes appears in nearby waterways to give the only clue that an underwater connection might exist.

Solving the mystery became urgent when the level of the lake dropped 80 metres, and sent the Croatia Facility of Civil Engineering in search of answers.

They commissioned top Adriatic ROV and diving company, Neptun-Sub to undertake the daring task of sending down the Falcon ROV.

Their mission was to discover the depth of the lake, create a 3D profile, and film the underwater surfaces.

Lowering the Falcon down a 300 metre vertical cliff face needed the skills of mountaineers.

Their task was only made possible because the Falcon is small enough to be manhandled, yet powerful enough to perform precise work, carrying a wide range of sensors and tools such as high specification cameras and sonar systems as well as manipulators. It is packed with advanced technology usually found in much larger underwater vehicles.

Once the exploration team sent the Falcon diving, it discovered that the Red Lake – taking is name from iron oxide colouring of the rocks within which it sits – is in fact 255 metres deep, four metres of which are below sea level – and it is funnel-shaped.

The filming and 3D survey results, along with data collected by instruments left in the lake, are currently being evaluated by the Croatian Faculty of Civil Engineering, and will be published at a later date.

Press Release, November 15, 2013

 

Share this article

Follow Subsea World News

Events>

<< Apr 2020 >>
MTWTFSS
30 31 1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 1 2 3

9th Annual Submarine Power Cable and Interconnection Forum

This year’s Advance Submarine Power Cable and Interconnection conference will focus on the cutting edge thinking that is emerging across…

read more >

The 24th Annual PNEC Conference & Exhibition

The 24th annual PNEC Conference and Exhibition  will bring together the industry thought leaders and technology providers that enable the management…

read more >

OWI APAC 2020

Over the two-day conference, 30 expert speakers will share exclusive insight to help drive well work efficiencies through innovative…

read more >

M&CCE Expo Marine & Coastal Civil Engineering 2020

This conferences, events, demos, and competitions provide a productive background buzz throughout M&CCE…

read more >