Data/hora: 10/06/2024 06:52:08

Provedor de dados: | 5
País: | France
Título: | Anthropogenic pressure on the open ocean: The growth of ship traffic revealed by altimeter data analysis
Autores: | Tournadre, Jean.
Data: | 2014-11-28
Ano: | 2014
Palavras-chave: | Altimetry; Ship traffic; Pollution; Anthropogenic pressure.
Resumo: | Marine ecosystems are under increasing anthropogenic pressures from marine and terrestrial activities. Ship traffic, the major cause of change in the open ocean, and its temporal evolution are still largely unknown because of lack of data. Altimeter data provide a new powerful tool to detect and monitor the ship traffic through a method of analysis of echo waveform. The archive of seven altimeter missions has been processed to create a two decade database of ship locations. The estimated annual density maps compare well with the ones obtained from Automatic Identification System. The ship traffic analysis shows a global fourfold growth between 1992 and 2012, the largest increase being observed in the Indian Ocean and the Chinese seas reflecting the world trade change. Although mainly concentrated along lanes, the traffic has a direct impact on the atmosphere, e.g., on the growth of tropospheric nitrogen dioxide in the Indian Ocean.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00229/34039/32432.pdf

DOI:10.1002/2014GL061786

http://archimer.ifremer.fr/doc/00229/34039/

Editor: | Amer Geophysical Union
Formato: | application/pdf
Fonte: | Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2014-11-28 , Vol. 41 , N. 22 , P. 7924-7932

Fonte:

2014. American Geophysical Union. All Rights Reserved.

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