Sea-ice thickness measurement based on the dispersion of ice swell

2012 ◽  
Vol 131 (1) ◽  
pp. 80-91 ◽  
Author(s):  
David Marsan ◽  
Jérôme Weiss ◽  
Eric Larose ◽  
Jean-Philippe Métaxian
Keyword(s):  
Sea Ice ◽  
Thickness Measurement ◽  
Ice Thickness ◽  
Sea Ice Thickness

scholarly journals GROUND PENETRATING RADAR DATA INTERPRETATION USING ELECTROMAGNETIC FIELD ANALYSIS FOR SEA ICE THICKNESS MEASUREMENT

2019 ◽  
Vol XLII-3/W7 ◽  
pp. 47-50 ◽  
Author(s):  
M. Matsumoto ◽  
M. Yoshimura ◽  
K. Naoki ◽  
K. Cho ◽  
H. Wakabayashi
Keyword(s):  
Electromagnetic Field ◽  
Sea Ice ◽  
Ground Penetrating Radar ◽  
Sea Water ◽  
Thickness Measurement ◽  
Field Analysis ◽  
Ice Thickness ◽  
Sea Ice Thickness ◽  
Ground Penetrating ◽  
Snow And Ice

<p><strong>Abstract.</strong> Observation of sea ice thickness by remote sensing is one of key issues to understand an effect of global warming. However, ground truth must be necessary to discuss this kind of approach. Although there are several methods to acquire ice thickness, Ground Penetrating Radar (GPR) can be good solution because it can discriminate snow-ice and ice-sea water interface thanks to comparative higher spatial resolution than the other methods. In this paper, we carried out GPR measurement in brackish lake and an electromagnetic field analysis in order to interpret the GPR data. The simulation model was assumed considering the actual snow and ice thickness acquired in field measurement. From the simulation results, although it seems difficult to identify the reflection at snow and ice interface due to a thin layer thickness and a low dielectric constant, snow and ice thickness may be estimated by using multiple reflection components.</p>

Sea‐ice thickness measurement using a small airborne electromagnetic sounding system

Geophysics ◽  
1990 ◽  
Vol 55 (10) ◽  
pp. 1327-1337 ◽  
Author(s):  
A. Kovacs ◽  
J. S. Holladay
Keyword(s):  
Sea Ice ◽  
Current Model ◽  
Field Evaluation ◽  
Field Testing ◽  
Thickness Measurement ◽  
Ice Thickness ◽  
Sea Ice Thickness ◽  
Pressure Ridge ◽  
Ice Floes ◽  
Induction Sounding

The evaluation of a small electromagnetic induction sounding system for use in airborne measurement of sea‐ice thickness is discussed, as are the results from arctic field testing. Also outlined are the system noise and drift problems encountered during arctic field evaluation, problems which adversely affected the quality of the sounding data. The sea‐ice sounding results indicate that for ice floes with moderate relief it should be possible to determine thickness to within 5 percent, but that because of sounding footprint size and current model algorithm constraints, steep‐sided pressure ridge keels cannot be well defined. The findings also indicate that with further system improvement the day of routine sea‐ice thickness profiling from an airborne platform is close at hand.

In-situ automatic observations of ice thickness of seas

2012 ◽  
Vol 19 (3) ◽  
pp. 583-592 ◽  
Author(s):  
Yinke Dou ◽  
Xiaomin Chang
Keyword(s):  
Sea Ice ◽  
New Technologies ◽  
Capacitive Sensor ◽  
Automatic Monitoring ◽  
Ice Thickness ◽  
In Situ Observation ◽  
Glacier Surface ◽  
Sea Ice Thickness ◽  
Surface Ice

Abstract Ice thickness is one of the most critical physical indicators in the ice science and engineering. It is therefore very necessary to develop in-situ automatic observation technologies of ice thickness. This paper proposes the principle of three new technologies of in-situ automatic observations of sea ice thickness and provides the findings of laboratory applications. The results show that the in-situ observation accuracy of the monitor apparatus based on the Magnetostrictive Delay Line (MDL) principle can reach ±2 mm, which has solved the “bottleneck” problem of restricting the fine development of a sea ice thermodynamic model, and the resistance accuracy of monitor apparatus with temperature gradient can reach the centimeter level and research the ice and snow substance balance by automatically measuring the glacier surface ice and snow change. The measurement accuracy of the capacitive sensor for ice thickness can also reach ±4 mm and the capacitive sensor is of the potential for automatic monitoring the water level under the ice and the ice formation and development process in water. Such three new technologies can meet different needs of fixed-point ice thickness observation and realize the simultaneous measurement in order to accurately judge the ice thickness.

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