Indonesian Journal of Geography
Vol 51, No 3 (2019): Indonesian Journal of Geography

Landsat 8 Observation of the Internal Solitary Waves in the Lombok Strait

I Wayan Gede Astawa Karang (Department of Marine Sciences Faculty of Marine Science and Fisheries Udayana University, Bali, Indonesia and Center for Remote Sensing and Ocean Science (CReSOS), Udayana University, Denpasar, Bali, Indonesia)
Chonnaniyah Chonnaniyah (Center for Remote Sensing and Ocean Science (CReSOS), Udayana University, Denpasar, Bali, Indonesia)
Takahiro Osawa (Center for Remote Sensing and Ocean Science (CReSOS), Udayana University, Denpasar, Bali, Indonesia and Regional Satellite Applications Center for Disaster Management (RSCD), Japan Aerospace Exploration Agency (JAXA), Ube, Japan and Center for Resear)



Article Info

Publish Date
31 Dec 2019

Abstract

Landsat  8,  Landsat  Data  Continuity  Mission  (LDCM)  satellite,  was  launched  on  11 February 2013 with Operation Land Imager (OLI) sensors. Tis sensor has better radiometric performance than the previous mission, which is quantized in the 12-bit dynamic range due to an increase in the signal-to-noise (SNR) ratio. In this analysis, the spatio-temporal distribution of the propagation of the internal solitary wave (ISW) in the Lombok Strait was extracted from the Landsat 8 images described for the first time.  Tere were 14 ISW events studied for period 2014  -  2015  using  Landsat  8.  Te  manifestations  of  ISW  recorded  on  Landsat  8  images  were then extracted using digitization method to investigate and measure several parameters and ISW distribution in the Lombok Strait. Te estimation results of the average ISW phase velocity in this study are 2.05 ms-1 with the direction of propagation heading north at an average angle of 19.08°. Tis study has shown that Landsat 8 can be used to monitor and analyze several internal wave parameters in the ocean.

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Journal Info

Abbrev

ijg

Publisher

Subject

Earth & Planetary Sciences

Description

Indonesian Journal of Geography ISSN 2354-9114 (online), ISSN 0024-9521 (print) is an international journal of Geography published by the Faculty of Geography, Universitas Gadjah Mada in collaboration with The Indonesian Geographers Association. Our scope of publications includes physical geography, ...