Although data for Ibiza has been supplied since 2003 latitude and longitude have only recently been confirmed. Ibiza is now RLR. RLR year 2004 factor 6.716m. Benchmark IB1 is 0.884m relative to REDMAR datum and 0.56m relative to IGN.
Documentation added 2013-03-18
The Aanderaa pressure gauge at Ibiza has been replaced by a new MIROS radar sensor. Both new and old gauges were running for the period 24.09.2009-18.10.2010 for inter-comparison purposes during which a malfunction of the old sensor was detected. A bias (mean difference) of -0.81cm between the two gauges was calculated. See paper by B. Perez et al 'Overlapping sea level time series measured using different technologies: an example from the REDMAR Spanish network'.
Documentation added 2014-01-13
Further investigation revealed that the bias was due to a problem in the old pressure gauge. Data from this was revised. Complete dataset re-entered onto database.
Documentation added 2014-04-29
At the request of Puertos del Estado the latitude and longitude have been revised from 38.916667 1.450000 derived from the previously supplied degrees and minutes listing to 38.91123 1.44984 the site of the new MIROS gauge in decimal degrees.
Puertos del Estado Area de Conocimiento y Analisis del Medio Fisico Avda. del Partenon, 10 28042 Madrid
Documentation added 2001-03-06
The Area de Conocimiento y Analisis del Medio Fisico was formerly known as the Departamento de Clima Maritimo.