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University of Hawaii Sea Level Monitoring

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University of Hawaii Sea Level Monitoring

    The University of Hawaii operates a large program to moni­tor sea level changes around the Pacific rim. The program extends as far west as Kenya in East Africa. Sea level stations are located in extremely remote areas, and are often visited only once every two years.

    The University of Hawaii Sea Level Center collects, processes, and distributes tide gauge data from around the world in support of CLIVAR, GLOSS, GCOS, GODAE and other climate research activities. The measurements are used for the evaluation of numerical models, joint analyses with satel­lite altimeter data sets, the calibration of altimeter data, the production of oceanographic products and research on inter annual to decadal climate fluctuations. Also, in support of satellite altimeter calibration and validation and for absolute sea level rise monitoring, the UHSLC and the Pacific GPS Facility maintain continuous GPS systems at 7 tide gauge stations.

    U of H used a competitor’s data logger until 2004. At that time, Sutron introduced them to our Satlink2 GOES Transmit­ter/Logger. The Satlink2 met most of their needs, but did not format the data transmissions in the way needed and also did not perform the same type of data averaging they had been using.

    Sutron assigned a Senior R&D Engineer to the program, and over the course of three months developed new firmware for the Satlink to meet U of H requirements. Satlink is now the standard transmitter for the sea level monitoring program.

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