Tide gauge observations of the Indian ocean tsunami, December 26, 2004, in Buenos Aires coastal waters, Argentina
Sea level oscillations at the Buenos Aires province coastal waters were detected as a response to the magnitude 9.3 earthquake centered off the west coast of northern Sumatra (3.307°N, 95.947°E) on December 26, 2004 at 00:59 UTC. The aim of the present work is to report the first description on sea...
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paper:paper_02784343_v26_n14_p1543_Dragani2023-06-08T15:26:47Z Tide gauge observations of the Indian ocean tsunami, December 26, 2004, in Buenos Aires coastal waters, Argentina Dragani, Walter César Buenos Aires continental shelf Indian ocean earthquake, December 26, 2004 Sea level measurements Tide gauges Tsunami coastal water continental shelf oscillation sea level Sumatra earthquake 2004 tide gauge tsunami wave propagation Argentina Asia Buenos Aires [Argentina] Eurasia Greater Sunda Islands Indian Ocean Malay Archipelago South America Southeast Asia Sumatra Sunda Isles Sea level oscillations at the Buenos Aires province coastal waters were detected as a response to the magnitude 9.3 earthquake centered off the west coast of northern Sumatra (3.307°N, 95.947°E) on December 26, 2004 at 00:59 UTC. The aim of the present work is to report the first description on sea level oscillations in the Buenos Aires continental shelf generated by oceanic seismic activity. Sea level records gathered at three tide gauge stations located at Santa Teresita (36° 32′S, 56° 40′W), Mar del Plata (38° 05′S, 57° 30′W) and Puerto Belgrano (38° 54′S, 62° 06′W) were filtered and analyzed. The first arrival was measured at Mar del Plata (December 27, 2004, 00:15 UTC). At Santa Teresita and Puerto Belgrano, the tsunami reached the coast 33 min and 4.5 h later than at Mar del Plata, respectively. Maximum wave heights observed were 0.27, 0.15 and 0.20 m at Santa Teresita, Mar del Plata and Puerto Belgrano stations, respectively, and wave periods were detected in the range from 20 to 120 min. Wave amplitudes presented a remarkable temporal variability in the period immediately following tsunami wave arrival. After the first arrivals, waves lasted during the first 40 and 54 h at Mar del Plata and Santa Teresita, respectively. Even though, atmospherically forced sea level oscillations (in the tsunami frequency band) are frequently observed at different tide stations at locations on the Buenos Aires province coast, the weather patterns between December 24 and 27, 2004 showed no evidences of either frontal passages or atmospheric gravity waves. Thus sea level perturbations recorded at Santa Teresita, Mar del Plata and Puerto Belgrano stations can certainly be linked to the Indian Ocean tsunami. © 2006 Elsevier Ltd. All rights reserved. Fil:Dragani, W.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02784343_v26_n14_p1543_Dragani http://hdl.handle.net/20.500.12110/paper_02784343_v26_n14_p1543_Dragani |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Buenos Aires continental shelf Indian ocean earthquake, December 26, 2004 Sea level measurements Tide gauges Tsunami coastal water continental shelf oscillation sea level Sumatra earthquake 2004 tide gauge tsunami wave propagation Argentina Asia Buenos Aires [Argentina] Eurasia Greater Sunda Islands Indian Ocean Malay Archipelago South America Southeast Asia Sumatra Sunda Isles |
| spellingShingle |
Buenos Aires continental shelf Indian ocean earthquake, December 26, 2004 Sea level measurements Tide gauges Tsunami coastal water continental shelf oscillation sea level Sumatra earthquake 2004 tide gauge tsunami wave propagation Argentina Asia Buenos Aires [Argentina] Eurasia Greater Sunda Islands Indian Ocean Malay Archipelago South America Southeast Asia Sumatra Sunda Isles Dragani, Walter César Tide gauge observations of the Indian ocean tsunami, December 26, 2004, in Buenos Aires coastal waters, Argentina |
| topic_facet |
Buenos Aires continental shelf Indian ocean earthquake, December 26, 2004 Sea level measurements Tide gauges Tsunami coastal water continental shelf oscillation sea level Sumatra earthquake 2004 tide gauge tsunami wave propagation Argentina Asia Buenos Aires [Argentina] Eurasia Greater Sunda Islands Indian Ocean Malay Archipelago South America Southeast Asia Sumatra Sunda Isles |
| description |
Sea level oscillations at the Buenos Aires province coastal waters were detected as a response to the magnitude 9.3 earthquake centered off the west coast of northern Sumatra (3.307°N, 95.947°E) on December 26, 2004 at 00:59 UTC. The aim of the present work is to report the first description on sea level oscillations in the Buenos Aires continental shelf generated by oceanic seismic activity. Sea level records gathered at three tide gauge stations located at Santa Teresita (36° 32′S, 56° 40′W), Mar del Plata (38° 05′S, 57° 30′W) and Puerto Belgrano (38° 54′S, 62° 06′W) were filtered and analyzed. The first arrival was measured at Mar del Plata (December 27, 2004, 00:15 UTC). At Santa Teresita and Puerto Belgrano, the tsunami reached the coast 33 min and 4.5 h later than at Mar del Plata, respectively. Maximum wave heights observed were 0.27, 0.15 and 0.20 m at Santa Teresita, Mar del Plata and Puerto Belgrano stations, respectively, and wave periods were detected in the range from 20 to 120 min. Wave amplitudes presented a remarkable temporal variability in the period immediately following tsunami wave arrival. After the first arrivals, waves lasted during the first 40 and 54 h at Mar del Plata and Santa Teresita, respectively. Even though, atmospherically forced sea level oscillations (in the tsunami frequency band) are frequently observed at different tide stations at locations on the Buenos Aires province coast, the weather patterns between December 24 and 27, 2004 showed no evidences of either frontal passages or atmospheric gravity waves. Thus sea level perturbations recorded at Santa Teresita, Mar del Plata and Puerto Belgrano stations can certainly be linked to the Indian Ocean tsunami. © 2006 Elsevier Ltd. All rights reserved. |
| author |
Dragani, Walter César |
| author_facet |
Dragani, Walter César |
| author_sort |
Dragani, Walter César |
| title |
Tide gauge observations of the Indian ocean tsunami, December 26, 2004, in Buenos Aires coastal waters, Argentina |
| title_short |
Tide gauge observations of the Indian ocean tsunami, December 26, 2004, in Buenos Aires coastal waters, Argentina |
| title_full |
Tide gauge observations of the Indian ocean tsunami, December 26, 2004, in Buenos Aires coastal waters, Argentina |
| title_fullStr |
Tide gauge observations of the Indian ocean tsunami, December 26, 2004, in Buenos Aires coastal waters, Argentina |
| title_full_unstemmed |
Tide gauge observations of the Indian ocean tsunami, December 26, 2004, in Buenos Aires coastal waters, Argentina |
| title_sort |
tide gauge observations of the indian ocean tsunami, december 26, 2004, in buenos aires coastal waters, argentina |
| publishDate |
2006 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02784343_v26_n14_p1543_Dragani http://hdl.handle.net/20.500.12110/paper_02784343_v26_n14_p1543_Dragani |
| work_keys_str_mv |
AT draganiwaltercesar tidegaugeobservationsoftheindianoceantsunamidecember262004inbuenosairescoastalwatersargentina |
| _version_ |
1768546347760222208 |