INVESTIGADORES
PERILLO Gerardo Miguel E.
artículos
Título:
Geomorphologic, circulation and dynamic analysis in a meandering tidal channel, Bahía Blanca Estuary.
Autor/es:
ANGELES, GUILLERMO; PERILLO, GERARDO M. E.; PICCOLO, M CINTIA
Revista:
THALASSAS (SANTIAGO DE COMPOSTELA)
Referencias:
Lugar: Santiago de Compostela; Año: 2003 vol. 19 p. 49 - 58
ISSN:
0212-5919
Resumen:
A meander of La Lista tidal channel (Bahia BlancaEstuary, Argentina) was selected in order to study therelationship between the geoforms that control themeandering channel evolution (mainly tidal flats andmarshes) arid the dynamic and circulationcharacteristics of these channels. To achieve this goala general survey was made in August 1999. Thetopographic characteristics of the channel and crosssectionprofiles from different sectors of the meanderwere compared with typical river profiles.Morphologic similarities between meander tidalchannel cross-section (characterized by bidirectionalflows) and meander river cross-section (characterizedby unidirectional flows) were analysed. The largest(1) Departamento de Geografia (Universidad Nacional del Sur),12 de octubre y San Juan, 8000 Bahia Blanca, Argentina(2) Instituto Argentino de Oceanografia (IADO), CC804, 8000Bahia Blanca, Argentina(3) Departamento de Geologia (Universidad Nacional del Sur),San Juan 670, 8000 Bahia Blanca, Argentinagangeles@criba.edu.ar perillo@criba.edu.ar·piccolo@criba.edu.arvelocities were measured during the ebb period (87and 67 em S·l for U and V, respectively); during theflood period, the highest values registered were 53 and33 em S·1 for U and V,respectively. Differencesamongthe tidal current profiles along the meander wereobserved. Comparing the current velocity gradients inthe different stations, the higher variations wereobserved during the flood period.
