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Study of a highly modified coastal lake by side-scan sonar, modelling and remote sensing

Study of a highly modified coastal lake by side-scan sonar, modelling and remote sensing
Study of a highly modified coastal lake by side-scan sonar, modelling and remote sensing
Lake Massaciuccoli and the associated wetlands are a heavily contaminated, highly modified coastal lagoon area within the coastal plain of Tuscany, Italy. In the last few decades, there have been increasing problems of: 1) eutrophication due to fertilizers used in the catchment area leaching into the lake; 2) increased turbidity due to runoff of sediments from the agricultural fields; 3) salinization due to influx of sea water through channels connecting the lake to the sea and through permeation through the barrier island; and 4) reduced influx of freshwater from the freshwater network, due to water use for irrigation and changes in rainfall patterns. The Lake and the surrounding wetlands are an important habitat for several endangered flora and fauna, including migrating birds, and as such have been designated as site of Community Importance and reclaimed as a nature reserve. In this work we describe the results of the first phase of a survey of the lake bottom carried out on the lake in summer 2003, using conventional echosounding techniques in combination with a novel side-scan sonar. The results underline the relevance of the areas affected by sand excavation both for the mass balance of the lake and for the type of ecosystem, and are compared with measurements of water parameters taken during complementary campaigns. We also examine how our survey can be used for the implementation of a dynamical model of the lake circulation and sediment transport, and in support of a program for the rejuvenation and careful management of the area. Finally, we discuss the plans for an airborne remote sensing campaign to map the water quality of the lake to be tentatively carried out on the area in late Spring 2004, in combination with further side-scan radar investigations.
Lake Massaciuccoli, side-scan sonar
(Poster)
Amos, C.L.
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Baneschi, I.
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Cipollini, P.
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Friend, P.L.
600afae0-5185-4e55-8322-34bb8e0ae1f4
Gulia, L.
216678f2-c0ee-43f4-b00c-61a25fee5957
Helsby, R.
d416fb20-05a6-44ab-91b9-2771b49ff08f
Scozzari, A.
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Amos, C.L.
d0a18a13-bccd-4fdc-8901-aea595d4ed5c
Baneschi, I.
4e6a93c4-adf6-4a6a-9db2-91da2d390af4
Cipollini, P.
276e356a-f29e-4192-98b3-9340b491dab8
Friend, P.L.
600afae0-5185-4e55-8322-34bb8e0ae1f4
Gulia, L.
216678f2-c0ee-43f4-b00c-61a25fee5957
Helsby, R.
d416fb20-05a6-44ab-91b9-2771b49ff08f
Scozzari, A.
3655ede0-5402-484a-a84e-e0a970380b24

Amos, C.L., Baneschi, I., Cipollini, P., Friend, P.L., Gulia, L., Helsby, R. and Scozzari, A. (2004) Study of a highly modified coastal lake by side-scan sonar, modelling and remote sensing. EGU 1st General Assembly, Nice, France. 25 - 30 Apr 2004. (Poster) .

Record type: Conference or Workshop Item (Poster)

Abstract

Lake Massaciuccoli and the associated wetlands are a heavily contaminated, highly modified coastal lagoon area within the coastal plain of Tuscany, Italy. In the last few decades, there have been increasing problems of: 1) eutrophication due to fertilizers used in the catchment area leaching into the lake; 2) increased turbidity due to runoff of sediments from the agricultural fields; 3) salinization due to influx of sea water through channels connecting the lake to the sea and through permeation through the barrier island; and 4) reduced influx of freshwater from the freshwater network, due to water use for irrigation and changes in rainfall patterns. The Lake and the surrounding wetlands are an important habitat for several endangered flora and fauna, including migrating birds, and as such have been designated as site of Community Importance and reclaimed as a nature reserve. In this work we describe the results of the first phase of a survey of the lake bottom carried out on the lake in summer 2003, using conventional echosounding techniques in combination with a novel side-scan sonar. The results underline the relevance of the areas affected by sand excavation both for the mass balance of the lake and for the type of ecosystem, and are compared with measurements of water parameters taken during complementary campaigns. We also examine how our survey can be used for the implementation of a dynamical model of the lake circulation and sediment transport, and in support of a program for the rejuvenation and careful management of the area. Finally, we discuss the plans for an airborne remote sensing campaign to map the water quality of the lake to be tentatively carried out on the area in late Spring 2004, in combination with further side-scan radar investigations.

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More information

Published date: 2004
Venue - Dates: EGU 1st General Assembly, Nice, France, 2004-04-25 - 2004-04-30
Keywords: Lake Massaciuccoli, side-scan sonar

Identifiers

Local EPrints ID: 16196
URI: http://eprints.soton.ac.uk/id/eprint/16196
PURE UUID: 3c10d4b4-46cc-4336-affd-19cbe49d9587

Catalogue record

Date deposited: 29 Jun 2005
Last modified: 15 Mar 2024 05:46

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Contributors

Author: C.L. Amos
Author: I. Baneschi
Author: P. Cipollini
Author: P.L. Friend
Author: L. Gulia
Author: R. Helsby
Author: A. Scozzari

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