Monitoring Turbidity In The Ionical Coast
During Extreme Events By Applying A Robust
Satellite Technique (RST) To MODIS Imagery
Author(s)
D. Mirauda, M. Faruolo, T. Lacava, N. Pergola,
G. Spilotro & V. Tramutoli
Abstract
Monitoring of Suspended Sediment Concentrations in plumes (SSC) at river
mouths is particularly important for a correct sediment balance. Such evaluation
requires the knowledge of many hydraulic and hydro-geological factors, highly
variable in the space-time domain and not easily measurable through
conventional techniques. Mainly because of this, satellite techniques have been
proposed to allow the monitoring of SSC space-time dynamics with spatial
resolution ranging between 250 and 3000 meters and time repetition from a few
hours up to a few minutes.
This paper presents a first attempt to apply the general Robust Satellite
Technique (RST) approach, already used to investigate several natural and
environmental hazards, for SS detection and mapping. Preliminary achieved
results seem to confirm that such approach is suitable for automatically
identifying the spectral signatures of different suspended particle mixtures,
taking into account bathymetric effects, which might mask the presence of
sediments near the coasts. A preliminary, qualitative integration of ground-based
data and measurements (e.g. water levels and discharges) with satellite-based
information is also proposed as a first step toward a further methodology
suggested for a full data integration strategy.
Ground-based and satellite derived information, based on Moderate
Resolution Imaging Spectroradiometer (MODIS) imagery, are combined in the
cases of the flood events occurred on 28 March 2007 and 11 March 2010 along
the Ionical coast of Basilicata Region, in Southern Italy.
Keywords
suspended sediment concentration, RST, MODIS, water level, water discharge, flood event
Related Book
Other papers in this volume
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