Dual body parallel ARGO dedicated conductivity-temperature-depth system comparative measurement method

Abstract

The invention discloses a dual body parallel ARGO dedicated conductivity-temperature-depth system comparative measurement method. The dual body parallel method is used, the comparative measurement process includes sequence-based data sample alignment, measurement error analysis and correlation analysis. Automatic sequence alignment of the measurement data can be realized and the manual alignment operation in data processing can be reduced; the obtained comparative measurement result is more scientific and reliable; and the algorithm is clear, the robustness is great, programming implementationis easy and the requirement of large sample comparative measurement within the valid calibration period can be met.

Description

technical field [0001] The invention belongs to the field of marine instrument evaluation, and in particular relates to a comparative measurement method for a dual-body parallel ARGO special-purpose temperature, salinity and depth measuring instrument. Background technique [0002] ARGO buoy is a self-sustaining profile observation buoy, because of its unique technical advantages, it is currently the main equipment for stereo observation of the global ocean. In the actual offshore profile observation, the ARGO buoy starts the temperature, salinity and depth measuring instrument to collect profile temperature, salinity and depth data during the ascent process. At present, the domestic ARGO buoy temperature, salinity and depth measuring instrument has basically reached the international level of similar instruments in terms of technical performance and application efficiency. However, there is currently no effective on-site evaluation and comparison method to verify that the ...

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Problems solved by technology

[0006] b. The timing of the comparison data cannot be directly aligned. The collection rate of the high-precision profile temperature, salt and depth measuring instrument used for reference is higher than that of the ARGO buoy-specific temperature, salt and depth measuring instrument, and the number of data samples is much higher than that of the ARGO buoy-specific temperature, salt and depth measurement Due to the large sample size of the instrument, it is difficult to directly align the time series of the profile comparison data, and manual preprocessing and post-analysis are required to align and evaluate the quality of the profile data;

[0007] c. Using historical data as the standard data for comparison cannot explain the source of errors in the data, the time series of the data cannot be aligned, and the comparison evaluation is only a qualitative judgment, which cannot effectively analyze the technical performance of domestic ARGO buoys;

[0008] d. Low security and existing faults cannot be reproduced. ARGO buoys are disposable measurement equipment. There is basically no possibility of recycling ARGO buoys equipped with domestic temperature, salinity and depth measuring instruments. cannot reproduce

[0009] From the above, we can see that there are relatively obvious defects in the comparative measurement methods currently used in the marine technology industry, which affect the effective evaluation and further improvement of the domestic ARGO special temperature, salinity and depth measuring instrument.

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