| Title |
Application of remote sensing methods in research of nearshore sandbars, Curonian Spit, Lithuania / |
| Authors |
Janušaitė, Rasa ; Karaliūnas, Viktoras ; Bevainis, Linas |
| DOI |
10.22364/bjmc.2019.7.4.08 |
| Full Text |
|
| Is Part of |
Baltic journal of modern computing.. Ryga : Univeristy of Latvia. 2019, vol. 7, no. 4, p. 550-562.. ISSN 2255-8942. eISSN 2255-8950 |
| Keywords [eng] |
neashore bar ; remote sensing ; UAS ; bar monitoring ; coastal morphodynamics ; Baltic Sea |
| Abstract [eng] |
Nearshore sandbars are extremely dynamic morphological features of sandy coasts, containing large volume of sand, important in sediment exchange between the beach and the nearshore. To understand dynamics of these underwater sand ridges regular and frequent observations of their cross-shore and longshore structure are required. Bathymetric surveys in the nearshore are limited to calm weather conditions and are usually conducted using profiling teqnique. For these reasons, optical remote sensing methods are often applied to study sandbar morphodynamics. In this study UAS flights and echo sounding surveys were performed in the nearshore of the Baltic Sea to assess possibilities of UAS imagery for identification of nearshore morphology changes. High spatial resolution images across surveyed bathymetric nearshore profiles were taken. Analysis of obtained images allows to evaluate morphodynamic state and longshore migration of nearshore sandbars, assist in determining structure of bar zone in the nearshore cross-shore profiles. Application of this technology is also valuable for post-storm nearshore monitoring. |
| Published |
Ryga : Univeristy of Latvia |
| Type |
Journal article |
| Language |
English |
| Publication date |
2019 |
