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http://dx.doi.org/10.7780/kjrs.2008.24.6.571

Discrimination between Sea Fog and low Stratus Using Texture Structure of MODIS Satellite Images  

Heo, Ki-Young (Division of Earth Environmental System, College of Natural Science, Pusan National University)
Min, Se-Yun (Environmental Prediction Co., Ltd.)
Ha, Kyung-Ja (Division of Earth Environmental System, College of Natural Science, Pusan National University)
Kim, Jae-Hwan (Division of Earth Environmental System, College of Natural Science, Pusan National University)
Publication Information
Korean Journal of Remote Sensing / v.24, no.6, 2008 , pp. 571-581 More about this Journal
Abstract
The sea fog occurs frequently in the west coast of Korea in spring and summer. This study focused on the detection of sea fog using MODIS satellite images. We presented a method for sea fog detection based on the homogeneity level between low stratus and sea fog, which was that the top surface of sea fog had a homogeneous aspect while that of low stratus had a heterogenous aspect. The results showed that the both homogeneity of $11{\mu}m$ brightness temperature (BT) and brightness temperature difference (BTD, $BT_{3.7{\mu}m}-BT_{11{\mu}m}$) were available to discriminate sea fog from low stratus. The frequency of difference between BT in fog/stratus area and BT in clear area provided reasonable result. In addition, the threshold values of standard deviations of BT and BTD in the fog/stratus area were applicable to differentiate fog from low stratus.
Keywords
Sea fog; Low stratus; MODIS; Homogeneity; Standard deviation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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