Artículo
A comparison of the annual cycle of sea level in coastal areas from gridded satellite altimetry and tide gauges
Ruiz Etcheverry, Laura Agustina; Saraceno, Martin
; Piola, Alberto Ricardo
; Valladeau, G.; Möller, O. O.
Fecha de publicación:
01/2015
Editorial:
Elsevier
Revista:
Continental Shelf Research
ISSN:
0278-4343
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In this work we compare the annual component of sea level variations derived from 478 worldwide- distributed tide gauges with the annual component computed from a weekly gridded multi-mission altimeter product. Gridded altimetry data products allow for spatio-temporal analyses that are not possible based on along-track altimetry data. However, a precise validation is necessary in the coastal region before the gridded data can be used. Results of the comparisons show that root-mean-square differences (RMSD) between the two datasets are r2 cm for 76.4% of the sites. RMSD higher than 4 cm are caused by narrow coastal currents, nearby river outflows or other local phenomena. A methodology is proposed to assess the accuracy of the seasonal component of the gridded altimeter product in regions with a low density net of tide gauges. As a case study it is shown that the Southwestern Atlantic coast is a suitable region to study the spatio-temporal variability of the annual cycle of sea level since RMSD be- tween annual altimetry data and in-situ data are lower than 2.1 cm.
Palabras clave:
Annual Cycle
,
Altimetry
,
Coastal Area
,
Tide Gauges
,
Sea Level Anomaly
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CIMA)
Articulos de CENTRO DE INVESTIGACIONES DEL MAR Y LA ATMOSFERA
Articulos de CENTRO DE INVESTIGACIONES DEL MAR Y LA ATMOSFERA
Articulos(OCA CIUDAD UNIVERSITARIA)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Ruiz Etcheverry, Laura Agustina; Saraceno, Martin; Piola, Alberto Ricardo; Valladeau, G.; Möller, O. O.; A comparison of the annual cycle of sea level in coastal areas from gridded satellite altimetry and tide gauges; Elsevier; Continental Shelf Research; 92; 1-2015; 87-97
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