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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union

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doi:10.5194/amt-2017-37
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
28 Feb 2017
Review status
This discussion paper is under review for the journal Atmospheric Measurement Techniques (AMT).
The importance of Atmospheric Correction for Airborne Hyperspectral Remote Sensing of Shallow Waters. Application to Depth Estimation
Elena Castillo-López1, Jose Antonio Dominguez2, Raúl Pereda1, Julio Manuel de Luis1, Ruben Pérez1, and Felipe Piña1 1Department of Geographic Engineering and Techniques of Graphical Expression, University of Cantabria, 39005, Spain
2Department of Mathematical Physics and Fluids, Scien ce Faculty, National Distance E ducation University (UNED).
Abstract. Abstract. Accurate determination of water depth is indispensable in multiple aspects of civil engineering (dock construction, dikes, submarines outfalls, trench control, etc.). According to the final objective, different accuracies will be required. Accuracy in bathymetric information is highly dependent on the atmospheric correction made to the imagery. The reduction of effects such as glint and cross track illumination in shallow-water areas with homogeneous improves the results of the depth estimations. The aim of this work is to assess the best atmospheric correction method for the estimation of depth in shallow waters. This paper addresses the use of hyperspectral imagery to quantitative bathymetric mapping, and explores one of the most common problems when attempting to extract depth information in conditions of variable water types and bottom reflectances. The current work assesses the accuracy of some classical bathymetric algorithms (Polcyn-Lyzenga, Philpot, Benny-Dawson, Hamilton, Principal Component Analysis) when four different atmospheric correction methods are applied and water depth is derived. This work shows the importance of atmospheric correction in order to depth estimation in shallow waters. None atmospheric correction is valid for all type of coastal waters but in heterogeneous shallow water, the model of atmospheric correction 6S offers good results.

Citation: Castillo-López, E., Dominguez, J. A., Pereda, R., de Luis, J. M., Pérez, R., and Piña, F.: The importance of Atmospheric Correction for Airborne Hyperspectral Remote Sensing of Shallow Waters. Application to Depth Estimation, Atmos. Meas. Tech. Discuss., doi:10.5194/amt-2017-37, in review, 2017.
Elena Castillo-López et al.
Elena Castillo-López et al.
Elena Castillo-López et al.

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This work is part of a project funded by the Government of Spain, whose objective was to develop a methodology that would allow the grain size and heavy metals estimation in the sediments of the intertidal zone (Bay of Satnander) and depth estimation in the subtidal área, using information (VNIR) captured by the hyperspectral sensor, CASI-2, a spectroradiometer ASD-FR (350-2500 nm) in field and laboratory and classical and robust statistic algorithms.
This work is part of a project funded by the Government of Spain, whose objective was to develop...
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