Four sensors have been developed at the bottom of the Balearic Sea to monitor temperature, salinity, and currents.

PalmThe Spanish Institute of Oceanography (IEO-CSIC) has deployed a total of four landersOceanographic centers in the Balearic Islands will allow scientists to verify aspects such as temperature, salinity, and the direction and speed of currents. This work was carried out in June by staff from the IEO's Balearic Oceanographic Center in collaboration with personnel from the oceanographic centers of Cádiz, Gijón, and Murcia, according to Europa Press. This is one of the activities planned within the framework of the Ebamar-PortoC project, which will involve the installation of the islands' new climate station.

The landers Traditional structures are structures that are abandoned on the seabed for long periods of time and that house several sensors capable of obtaining measurements of a multitude of environmental parameters and even obtaining images with which to produce videos in time lapse (time-lapse filming). They are usually large and require active recovery systems to return them to the surface. However, their main limitation lies in the anchoring and recovery system, which is expensive or unsuitable for medium- or long-term campaigns. These operational and economic limitations make it difficult to design experiments or marine environmental monitoring programs based on the simultaneous use of several landers.

The landersdeployed in Balearic waters have been installed with the ROTV-LanderPick remotely operated underwater vehicle developed by the IEO. This submersible offers an innovative solution that allows the installation and recovery oflanderson the seabed with high precision without the need to incorporate active recovery elements.

Rosa Balbín, oceanographer at the Balearic Oceanographic Center, has indicated that the recovery and installation of these devices is carried out using a real-time video system, which "allows the anchor position to be fine-tuned and opens the door to specific experiments that require this precision."

The oceanographic campaign to install the four landers It was carried out aboard the Ángeles Alvariño ship in collaboration with the Tunibal-0625 campaign, which is carrying out work in eastern Mallorca and off the coast of Portocolom, the study area of interest for Ebamar.

The material used and the campaign for its positioning have been financed by the project. Balearic strategy in marine sciences for the observation and predictive understanding of the effects of climate change in the Mediterranean Sea: new climate node of Porto Colom Ebamar-Porto C.

The Mediterranean Institute for Advanced Studies (Imedea CSIC-UIB), the Balearic Coastal Observation System (SOCIB), the UIB and the IEO-CSIC are participating in this project to develop a scientific and technical infrastructure for marine observation in Porto Resiliencia, a project co-financed by the Spanish government through the Complementary Plans call.