Measurement method and device for correcting actual ocean shallow profile temperature

By combining infrared thermometry with thermistor technology, along with indoor emissivity calibration and Monte Carlo model correction, high-precision temperature measurement from the cold skin layer of the sea surface to a depth of 20 meters underwater was achieved, solving the problem of insufficient accuracy and resolution in existing technologies for shallow ocean profile temperature measurement.

CN121804670APending Publication Date: 2026-04-07HARBIN INST OF TECH AT WEIHAI
0 Cites 0 Cited by

Patent Information

Application Number
CN202511815199.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-04
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing technologies struggle to accurately measure shallow ocean profile temperatures under complex sea conditions, particularly the cold surface temperature of the sea and the temperature of seawater at different depths. They suffer from problems such as insufficient spatial resolution, poor weather adaptability, high cost of wide-area coverage, or lack of millimeter-level accuracy.

Method used

By combining infrared thermometry with thermistors, and through indoor calm water surface emissivity calibration and Monte Carlo model correction, combined with the deployment of thermistor chains of different scales, high-precision temperature measurement can be achieved from the cold skin layer of the sea surface to 20 meters underwater.

Benefits of technology

It enables continuous, synchronous, and high-precision measurements from millimeter-level thin layers at the sea surface to underwater profiles tens of meters deep under dynamic sea conditions, improving measurement accuracy and resolution and filling the gap in existing technologies for integrated sea surface-profile measurements.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention belongs to the technical field of ocean monitoring and sensors, and discloses a measuring method and device for correcting the actual ocean shallow profile temperature. The method comprises the following steps: obtaining the real emissivity of a calm water surface; inputting the wind speed wave height of the seawater in the actual sea condition, the wind speed of the air and the obtained actual emissivity of the calm water surface into a Monte Carlo emissivity correction model, outputting the corrected actual sea condition seawater emissivity, and taking the corrected actual sea condition seawater emissivity as a parameter for measuring the actual water surface temperature by a second IR infrared thermometer; and based on the obtained modified parameters of the real water surface temperature measured by the second IR infrared thermometer, carrying out actual sea surface temperature measurement by arranging thermosensitive chains with different scales. The method is obviously superior to the prior art (the satellite is 0.3-1K, the shipborne infrared is 0.05-0.1 K, and the anchor system CTD is 0.002 K and is larger than or equal to 5cm on average).
Need to check novelty before this filing date? Find Prior Art