A GIS-BASED METHODOLOGY FOR ASSESSING THE SEDIMENTARY DYNAMICS, MONITORING AND REMEDIATION ACTIONS IN A BEACH-DUNE SYSTEM IN THE SOUTHEASTERN OF BUENOS AIRES PROVINCE, ARGENTINA

被引:0
作者
Quiroz Londono, Orlando Mauricio [1 ,2 ]
Romanelli, Asuncion [1 ,2 ]
Gonzalez, Fabian [1 ,2 ,3 ]
Cermelo, Leonardo [3 ]
Dalto, Carlos [3 ]
机构
[1] Univ Mar del Plata, Inst Mat Sci & Technol, Funes 3350 Nivel 1, RA-7600 Mar Del Plata, Buenos Aires, Argentina
[2] Consejo Nacl Invest Cient & Tecn UNMdP CONICET, FCEyN, Inst Invest Marinas & Costeras, CC1260, RA-7600 Mar Del Plata, Buenos Aires, Argentina
[3] IGSAM, Invest & Gest Sistemas Ambientales, RA-7600 Mar Del Plata, Buenos Aires, Argentina
来源
GEOFOCUS-REVISTA INTERNACIONAL DE CIENCIA Y TECNOLOGIA DE LA INFORMACION GEOGRAFICA | 2019年 / 24期
关键词
sedimentary balances; beach-dune system; coastal erosion; Beach Recovery; GIS; alternatives; Atlantic littoral; MEDIUM-TERM EVOLUTION; COASTAL;
D O I
10.21138/GF.631
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
The aim of this work is to identify sediment deposition and erosion in coastal zones and to quantify the sedimentary budget in a beach-dune system of the Atlantic coast of Buenos Aires Province (Argentina) by a methodological framework based on GIS. Seven topographic survey campaigns were carried out from March 2016 to March 2017. The total volume of mobilized sand fluctuated between 31079 and 77680 m(3). A 488 m(2) area of permanent erosion was quantified, close to the coastline, and also an area of 2468 m(2) of permanent accumulation, mostly coinciding with the dune ridges. The identification of priority areas (3.7%) for remediation practices was performed. We recommended the installation of sand accumulation devices as possible alternatives for the remediation of the frontal dunes, mainly between March and June, since during these months the highest sediment volumes are present in the system.
引用
收藏
页码:77 / 97
页数:22
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