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High Sampling Rate Thermistor String Observations at the Slope of Great Meteor Seamount : Volume 1, Issue 1 (10/05/2005)

By Van Haren, H.

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Book Id: WPLBN0004020164
Format Type: PDF Article :
File Size: Pages 12
Reproduction Date: 2015

Title: High Sampling Rate Thermistor String Observations at the Slope of Great Meteor Seamount : Volume 1, Issue 1 (10/05/2005)  
Author: Van Haren, H.
Volume: Vol. 1, Issue 1
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2005
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Koster, B., Laan, M., Groenewegen, R., & Haren, H. V. (2005). High Sampling Rate Thermistor String Observations at the Slope of Great Meteor Seamount : Volume 1, Issue 1 (10/05/2005). Retrieved from http://worldlibrary.net/


Description
Description: Royal Netherlands Institute for Sea Research (NIOZ), P.O. Box 59, 1790 AB Den Burg, The Netherlands. A high sampling rate (1 Hz) thermistor string has been built to accommodate the scientific need to accurately monitor high-frequency and vigorous internal wave and overturning processes in the ocean. The thermistors and their custom designed electronics can register temperature at an estimated precision of about 0.001° C with a response time faster than 0.25 s down to depths of 6000 m. With a quick in situ calibration using SBE 911 CTD an absolute accuracy of 0.005° C is obtained. The present string holds 128 sensors at 0.5 m intervals, which are all read-out within 0.5 s. When sampling at 1 Hz, the batteries and the memory capacity of the recorder allow for deployments of up to 2 weeks. In this paper, the instrument is described in some detail. Its performance is illustrated with examples from the first moored observations, which show Kelvin-Helmholtz overturning and very high-frequency (Doppler-shifted) internal waves besides occasionally large turbulent bores moving up the sloping side of Great Meteor Seamount, Canary Basin, North-Atlantic Ocean.

Summary
High sampling rate thermistor string observations at the slope of Great Meteor Seamount

 

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