netH2O Personal Smart Buoy: Calafuria1 "Mirna"


The Calafuria1 (also called "Mirna" by the project promoters Associazione Costiera di Calafuria and by the sponsor Global Service SRL) installation of one of our Personal Smart Buoy netH2O is located off Calafuria, south of the Italian city of Leghorn, over the renowned diving spot called "Grotta del grongo". The main objectives of this installation, which was actively promoted by Associazione Costiera di Calafuria, are collectio of data, preservation of the environment (less anchors by diving boats), citizen science and increase of public awarenes of a precious but delicate environment.

In the following we describe the correct use of the buoy by diving boats and divers. Please share this link with anyone who might use the buoy. This page will be updated frequently, to take into account comments and suggestions from users, and the evolution of the configuration of the buoy.

DESCRIPTION OF THE SETUP

The buoy is moored to two "Jumpers" (submerged buoys) positioned at approximately 5m of depth and at a distance of 10m between them, on a 11m deep sea floor.  Fron this underwater video you can get more details.The buoy has an orange intermittent light active during the night and is powered by solar panels.The Jumpers are moored to the sea floor and the buoy is moored to the Jumpers via a steel chain. Thw buoy, once completed in the next few days, will collect data on water temperature and will estimate waves and currents. It will transmit data to shore via a radio link and will also be capable of transmitting video (also live) from a webcam positioned approximately 18m deep. It is equipped with solar panels and batteries.

In the following we describe the correct use of the buoy by diving boats and divers. Please share this link with anyone who might use the buoy. This page will be updated frequently, to take into account comments and suggestions from users, and the evolution of the configuration of the buoy.

MOORING PROCEDURE

Diving boats should approach the buoy preferably from the south. There is an orange rope attached to the buoy, forming an anular shape of approximately 1m of diameter. The approaching boat should retrieve this rope and attach to it its own, possibly passing inside it and back (for easier release at the time of departure). The mooring of two boats directly on the buoy can result in damages to the buoy or risk for divers. 

The usage of two palates connected to the substrate with steel bars has an extremely low environmental impact. That said, being an experimental method, it is mandatory that during operations at least one person remains on the boat at all times.

USAGE BY DIVERS

The mooring lines and the Jumpers at -5m can be an effective support during an immersion. The buoy is equipped with scientific instrumentation, already on the surface and soon mid-water (on one of the Jumper mooring lines) and on the bottom. These units are linked between them by a blue cable, which once connected to the various components will be attached to the mooring chain in the part where it is suspended. Divers are warmly invited to NOT TOUCH OR PULL THE CABLE, which could otherwise be damaged. If there is need to grab the mooring chain (maybe because of strong currents or for an emergency) please mind the fishing hooks which could be tangled there. Please notice also that until the installation is complete there will be a short length of free chain immediately below the Jumpers, which can oscillate in the presence of waves.

Divers are invited to monitor the mooring plates, and to signal any change in their configuration through the "contact us" button on this page.

DIVING CENTERS

The following diving centers can bring you to make a dive at "Mirna". We will update the list so come back frequently.

Antignano Diving Center

CSM Urgon

Accademia Blu