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Title:
MEASURING METHOD FOR WATER QUALITY OF MARINE SURFACE LAYERS, WATER QUALITY MEASURING DEVICE, AND WATER QUALITY MEASURING PROGRAM
Document Type and Number:
WIPO Patent Application WO/2010/150490
Kind Code:
A1
Abstract:
In order to enable the measurement of the salinity and water temperature of a marine surface layer using data obtained by a marine radar, the deviation ( ΔS') between the effect of waves in a standard time period on received power (RSI0') and the effect of waves in a measured time period on received power (RSI m') is estimated; the deviation (Δs') between the effect of waves in the standard time period on received power (RSI0') and the effect of waves in a fluctuating electrical conductivity time period on received power is estimated; the regression function (f(σ)) of the relationship between the received power, wherein the deviation (Δs') has been subtracted from the received power in the fluctuating electrical conductivity time period, and the electrical conductivity (σ) in the fluctuating electrical conductivity time period is estimated; the value of the electrical conductivity (σc) in the measured time period is estimated using RSI0'-RSIm'=ΔS'+{f(σ0)-f(σc)} (σ0: the electrical conductivity in the standard time period); and practical salinity is calculated.

Inventors:
YOSHII TAKUMI (JP)
Application Number:
PCT/JP2010/004010
Publication Date:
December 29, 2010
Filing Date:
June 16, 2010
Export Citation:
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Assignee:
CENTRAL RES INST ELECT (JP)
YOSHII TAKUMI (JP)
International Classes:
G01N22/00; G01K1/02; G01N33/18
Foreign References:
JP2004085394A2004-03-18
JP2005321269A2005-11-17
Other References:
TAKUMI YOSHII ET AL.: "A study of impact factors on data acquisition of DBF ocean radar with VHF band", CENTRAL RESEARCH INSTITUTE OF ELECTRIC POWER INDUSTRY KENKYU HOKOKUSHO, vol. 07017, June 2008 (2008-06-01)
TAKUMI YOSHII ET AL.: "The effect of surface salinity on the observation using the Ocean Radar", CENTRAL RESEARCH INSTITUTE OF ELECTRIC POWER INDUSTRY KENKYU HOKOKUSHO, vol. 09003, September 2009 (2009-09-01)
TAKUMI YOSHII: "Measuring sea surface salinity and sea surface temperature using ocean radar", CENTRAL RESEARCH INSTITUTE OF ELECTRIC POWER INDUSTRY KENKYU HOKOKUSHO, vol. 09038, May 2010 (2010-05-01)
Attorney, Agent or Firm:
MURASE, Kazumi (JP)
Kazumi Murase (JP)
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