Surface Currents Derived from SAR Doppler Processing: An Analysis over the Naples Coastal Region in South Italy
Several studies have shown the capabilities of Synthetic Aperture Radar to map sea currents in ocean regions mainly characterized by large flows. We consider the well known method based on the analysis of the Doppler Centroid. The Doppler, as, in general, the scattering from the sea, is sensitive to...
Main Authors: | , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2020-03-01
|
Series: | Journal of Marine Science and Engineering |
Subjects: | |
Online Access: | https://www.mdpi.com/2077-1312/8/3/203 |
id |
doaj-4e81138c2e904c7dad1f5cdeaa3ba842 |
---|---|
record_format |
Article |
spelling |
doaj-4e81138c2e904c7dad1f5cdeaa3ba8422021-04-02T12:55:14ZengMDPI AGJournal of Marine Science and Engineering2077-13122020-03-018320310.3390/jmse8030203jmse8030203Surface Currents Derived from SAR Doppler Processing: An Analysis over the Naples Coastal Region in South ItalyVirginia Zamparelli0Francesca De Santi1Andrea Cucco2Stefano Zecchetto3Giacomo De Carolis4Gianfranco Fornaro5IREA-CNR, Institute for Electromagnetic Sensing of the Environment-National Research Council of Italy, 80128 Naples, ItalyIREA-CNR, Institute for Electromagnetic Sensing of the Environment-National Research Council of Italy, 20133 Milan, ItalyIAS-CNR, Institute for the Study of Anthropic Impacts and Sustainability in Marine Environment-National Research Council of Italy, 09170 Oristano, ItalyISP-CNR, Institute of Polar Sciences-National Research Council of Italy, 35127 Padova, ItalyIREA-CNR, Institute for Electromagnetic Sensing of the Environment-National Research Council of Italy, 20133 Milan, ItalyIREA-CNR, Institute for Electromagnetic Sensing of the Environment-National Research Council of Italy, 80128 Naples, ItalySeveral studies have shown the capabilities of Synthetic Aperture Radar to map sea currents in ocean regions mainly characterized by large flows. We consider the well known method based on the analysis of the Doppler Centroid. The Doppler, as, in general, the scattering from the sea, is sensitive to several phenomena, occurring between the upper ocean and atmospheric boundary layers. To investigate such phenomena, we considered the combined use of both ENVISAT calibrated amplitude and Doppler data in conjunction with hindcast wind information provided by atmospheric models as well as Wind and Doppler Geophysical Model Functions (W/D-GMF) developed, in the literature, for C-Band systems. This integrated analysis for the interpretation of the Doppler surface currents measurements was carried out on a case study located in the Mediterranean Sea which is characterized by a general low circulation regime: specifically, the coastal region around the city of Naples. In this case study, we show that generally, wind plays a direct significant role in the observed Doppler surface current. The availability of an oceanographic numerical model for one of the analyzed cases also allowed us to attempt to interpret the effect of the typical thermohaline circulation pattern on the Doppler anomaly.https://www.mdpi.com/2077-1312/8/3/203synthetic aperture radardoppler anomalysea surface currents |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Virginia Zamparelli Francesca De Santi Andrea Cucco Stefano Zecchetto Giacomo De Carolis Gianfranco Fornaro |
spellingShingle |
Virginia Zamparelli Francesca De Santi Andrea Cucco Stefano Zecchetto Giacomo De Carolis Gianfranco Fornaro Surface Currents Derived from SAR Doppler Processing: An Analysis over the Naples Coastal Region in South Italy Journal of Marine Science and Engineering synthetic aperture radar doppler anomaly sea surface currents |
author_facet |
Virginia Zamparelli Francesca De Santi Andrea Cucco Stefano Zecchetto Giacomo De Carolis Gianfranco Fornaro |
author_sort |
Virginia Zamparelli |
title |
Surface Currents Derived from SAR Doppler Processing: An Analysis over the Naples Coastal Region in South Italy |
title_short |
Surface Currents Derived from SAR Doppler Processing: An Analysis over the Naples Coastal Region in South Italy |
title_full |
Surface Currents Derived from SAR Doppler Processing: An Analysis over the Naples Coastal Region in South Italy |
title_fullStr |
Surface Currents Derived from SAR Doppler Processing: An Analysis over the Naples Coastal Region in South Italy |
title_full_unstemmed |
Surface Currents Derived from SAR Doppler Processing: An Analysis over the Naples Coastal Region in South Italy |
title_sort |
surface currents derived from sar doppler processing: an analysis over the naples coastal region in south italy |
publisher |
MDPI AG |
series |
Journal of Marine Science and Engineering |
issn |
2077-1312 |
publishDate |
2020-03-01 |
description |
Several studies have shown the capabilities of Synthetic Aperture Radar to map sea currents in ocean regions mainly characterized by large flows. We consider the well known method based on the analysis of the Doppler Centroid. The Doppler, as, in general, the scattering from the sea, is sensitive to several phenomena, occurring between the upper ocean and atmospheric boundary layers. To investigate such phenomena, we considered the combined use of both ENVISAT calibrated amplitude and Doppler data in conjunction with hindcast wind information provided by atmospheric models as well as Wind and Doppler Geophysical Model Functions (W/D-GMF) developed, in the literature, for C-Band systems. This integrated analysis for the interpretation of the Doppler surface currents measurements was carried out on a case study located in the Mediterranean Sea which is characterized by a general low circulation regime: specifically, the coastal region around the city of Naples. In this case study, we show that generally, wind plays a direct significant role in the observed Doppler surface current. The availability of an oceanographic numerical model for one of the analyzed cases also allowed us to attempt to interpret the effect of the typical thermohaline circulation pattern on the Doppler anomaly. |
topic |
synthetic aperture radar doppler anomaly sea surface currents |
url |
https://www.mdpi.com/2077-1312/8/3/203 |
work_keys_str_mv |
AT virginiazamparelli surfacecurrentsderivedfromsardopplerprocessingananalysisoverthenaplescoastalregioninsouthitaly AT francescadesanti surfacecurrentsderivedfromsardopplerprocessingananalysisoverthenaplescoastalregioninsouthitaly AT andreacucco surfacecurrentsderivedfromsardopplerprocessingananalysisoverthenaplescoastalregioninsouthitaly AT stefanozecchetto surfacecurrentsderivedfromsardopplerprocessingananalysisoverthenaplescoastalregioninsouthitaly AT giacomodecarolis surfacecurrentsderivedfromsardopplerprocessingananalysisoverthenaplescoastalregioninsouthitaly AT gianfrancofornaro surfacecurrentsderivedfromsardopplerprocessingananalysisoverthenaplescoastalregioninsouthitaly |
_version_ |
1721567186142625792 |