Start-up transient of XBT measurement

Shoichi Kizu; Kimio Hanawa

doi:10.1016/S0967-0637(02)00003-1

Start-up transient of XBT measurement

Shoichi Kizu, Kimio Hanawa

SCI - Geophysics

Tohoku University

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

The start-up transient of XBT measurements is statistically investigated for five types of recorder system: Z-60-16 II and III by Murayama Electric Co., Ltd., and MK-130 by Tsurumi Seiki Co., Ltd., which are commonly used in Japan, and Sippican MK-9 and MK-12, which are popular in the United States and other countries. The UNESCO recommendation to exclude XBT-measured temperatures in the top 3.7 m layer from the bathythermograph report is justified within a nominal precision of 0.2°C for Tsurumi Seiki T-7 probes. However, it is shown that the depth where the transient ceases differs for different types of recorder. If we require a more strict accuracy constraint of 0.02°C, the estimated depth of the transient is 2 m for MK-130, MK-9 and MK-12, 3 m for Z-60-16 III and 10 m for Z-60-16 II.

Original language	English
Pages (from-to)	935-940
Number of pages	6
Journal	Deep-Sea Research Part I: Oceanographic Research Papers
Volume	49
Issue number	5
DOIs	https://doi.org/10.1016/S0967-0637(02)00003-1
Publication status	Published - 2002

Keywords

Expendable bathythermograph
Sea surface temperature
Start-up transient
Temperature data
Temperature measurement
VOS monitoring
XTB

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10.1016/S0967-0637(02)00003-1

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title = "Start-up transient of XBT measurement",

abstract = "The start-up transient of XBT measurements is statistically investigated for five types of recorder system: Z-60-16 II and III by Murayama Electric Co., Ltd., and MK-130 by Tsurumi Seiki Co., Ltd., which are commonly used in Japan, and Sippican MK-9 and MK-12, which are popular in the United States and other countries. The UNESCO recommendation to exclude XBT-measured temperatures in the top 3.7 m layer from the bathythermograph report is justified within a nominal precision of 0.2°C for Tsurumi Seiki T-7 probes. However, it is shown that the depth where the transient ceases differs for different types of recorder. If we require a more strict accuracy constraint of 0.02°C, the estimated depth of the transient is 2 m for MK-130, MK-9 and MK-12, 3 m for Z-60-16 III and 10 m for Z-60-16 II.",

keywords = "Expendable bathythermograph, Sea surface temperature, Start-up transient, Temperature data, Temperature measurement, VOS monitoring, XTB",

author = "Shoichi Kizu and Kimio Hanawa",

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AU - Hanawa, Kimio

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AB - The start-up transient of XBT measurements is statistically investigated for five types of recorder system: Z-60-16 II and III by Murayama Electric Co., Ltd., and MK-130 by Tsurumi Seiki Co., Ltd., which are commonly used in Japan, and Sippican MK-9 and MK-12, which are popular in the United States and other countries. The UNESCO recommendation to exclude XBT-measured temperatures in the top 3.7 m layer from the bathythermograph report is justified within a nominal precision of 0.2°C for Tsurumi Seiki T-7 probes. However, it is shown that the depth where the transient ceases differs for different types of recorder. If we require a more strict accuracy constraint of 0.02°C, the estimated depth of the transient is 2 m for MK-130, MK-9 and MK-12, 3 m for Z-60-16 III and 10 m for Z-60-16 II.

KW - Expendable bathythermograph

KW - Sea surface temperature

KW - Start-up transient

KW - Temperature data

KW - Temperature measurement

KW - VOS monitoring

KW - XTB

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JO - Deep-Sea Research Part I: Oceanographic Research Papers

JF - Deep-Sea Research Part I: Oceanographic Research Papers

IS - 5

ER -

Start-up transient of XBT measurement

Abstract

Keywords

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