a5b520b9-d89a-4e72-9a8b-2582801e5f57 Fred Kaan MARIS        info@maris.nl pointOfContact 2025-05-15T23:37:50.532583Z ISO 19115-3 - SEXTANT 1.0 Acqua Alta Oceanographic Tower 2018-05-25 publication Acqua Alta Oceanographic Tower The "Acqua Alta" research tower consists of a platform containing an instrument house, supported by a steel pipe structure, similar to that of an oil well derrick. The pipe structure is hammered 22 m into the bottom through each of its four hollow legs. Energy is supplied at 125, 220, 380 VAC (50 Hz –remote activation), along with continuous voltage 12 and 24 VDC. The tower can host two technicians and three scientists for several days and allows specific dedicated campaigns and long-term measurements. A broadband wireless communication system between the tower and the operating Institute allows 10 Mb/s data communication rate and real time data availability. The bridge allows the tower to be part of the Institute LAN so all the scientists on board can access internet and potentially the instruments could be controlled remotely. Measurements routinely acquired with periodic sampling concern biology, chemistry, physical oceanography. Autonomous instrumentations cover atmospheric and hydrological parameters with a series of meteorological stations and oceanographic instruments. A direct view of the sea condition around the tower is available continuously by the three high resolution webcams installed on the roof. Two underwater webcams are installed at -3 and -12 m to observe biological populations and to monitor potentially critical phenomena such as jellyfish swarms and mucilaginous macro aggregates. Given the high level of security and wide desk space, sophisticated instruments can be hosted on board reducing drastically the risk of loss (when not in service the tower is locked and a video surveillance is active). The good level of logistic support allows the setup of in situ experiments. Mauro Bastianini CNR-ISMAR mauro.bastianini@ve.ismar.cnr.it pointOfContact https://sextant.ifremer.fr/geonetwork/srv/api/records/a5b520b9-d89a-4e72-9a8b-2582801e5f57/attachments/ISMAR-logo_2.jpg Thèmes Sextant 2018-11-14 publication geonetwork.thesaurus.local.theme.sextant-theme Oceanographic geographical features GEMET - INSPIRE themes, version 1.0 2018-07-27 publication geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme Turbidity Air temperature Wind strength and direction Temperature of the water column Dissolved oxygen parameters in the water column Salinity of the water column Atmospheric humidity Vertical velocity of the water column (currents) Electrical conductivity of the water column Sediment water content, porosity and surface area Parameter Discovery Vocabulary (P02) 2018-10-02 publication geonetwork.thesaurus.external.parameter.NVS.P02 Creative Commons license to apply : Attribution (BY) : http://creativecommons.org/licenses/?lang=en vector utf8 oceans 12.508317 12.508317 45.31435 45.31435 http://www.ismar.cnr.it/infrastructures/piattaforma-acqua-alta?set_language=en&cl=en WWW:LINK not available