Assessing WorldView-2 Satellite Imagery Accuracy for Bathymetry Mapping in Pahawang Island, Lampung, Indonesia

3rd International Conference of Indonesia Society for Remote Sensing

地球科学;计算机科学

Hakim, L.^1 ; Lazuardi, W.^1 ; Astuty, I.S.^1 ; Hadi, A Al^1 ; Hermayani, R.^1 ; Noviandias, D.^1 ; Dewi, A.C.^1

Departement of Geographic Information Science, Faculty of Geography, Universitas Gadjah Mada, Yogyakarta

55281, Indonesia^1

关键词: Attenuation process;    Bathymetry mapping;    Bivariate statistics;    Electromagnetic spectra;    Polynomial regression;    Regression;    Standard errors;    Worldview-2;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/165/1/012027/pdf
DOI  :  10.1088/1755-1315/165/1/012027

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

Bathymetry is one of a vital marine geospatial data which is required in many hydrographic analysis. The extent of remote sensing gives a possibility of advancement even onto bathymetry modeling. The visible electromagnetic spectrum gives different reflectance intensity in various sea depth due to attenuation processes. This peculiar spectral responses is then used as the basis of bathymetry modeling using satellite imagery. This paper's goal is to test the WorldView-2 ability for bathymetry mapping in Pahawang Island, Lampung, Indonesia. The WorldView-2 Image of Pahawang Island is corrected into top of atmospheric (ToA) reflectance. It is then being analyzed using bivariate statistic (linear, exponential, and polynomial regression) along with the tide-corrected sea depth data which is acquired from field survey using GPSMAP 840xs single beam in a sampling framework. We then perform a standard error method to determine the most effective result of bathymetry model by its accuracy value.