Consulta: creatorFacets:"Calmant, Stephane"
Registros recuperados: 2
Data/hora: 09/06/2024 10:27:08

The Benefits of the Ka-Band as Evidenced from the SARAL/AltiKa Altimetric Mission: Scientific Applications
Provedor de dados: 5
Autores: Verron, Jacques; Bonnefond, Pascal; Aouf, Lofti; Birol, Florence; Bhowmick, Suchandra A.; Calmant, Stephane; Conchy, Taina; Cretaux, Jean-francois; Dibarboure, Gerald; Dubey, A. K.; Faugere, Yannice; Guerreiro, Kevin; Gupta, P. K.; Hamon, Mathieu; Jebri, Fatma; Kumar, Raj; Morrow, Rosemary; Pascual, Ananda; Pujol, Marie-isabelle; Remy, Elisabeth; Remy, Frederique; Smith, Walter H. F.; Tournadre, Jean; Vergara, Oscar.
The India-France SARAL/AltiKa mission is the first Ka-band altimetric mission dedicated primarily to oceanography. The mission objectives were firstly the observation of the oceanic mesoscales but also global and regional sea level monitoring, including the coastal zone, data assimilation, and operational oceanography. SARAL/AltiKa proved also to be a great opportunity for inland waters applications, for observing ice sheet or icebergs, as well as for geodetic investigations. The mission ended its nominal phase after three years in orbit and began a new phase (drifting orbit) in July 2016. The objective of this paper is to highlight some of the most remarkable achievements of the SARAL/AltiKa mission in terms of scientific applications. Compared to the...
Tipo: Text
Palavras-chave: Altimetry; Ka-band; Oceanography; Hydrology; Ice; Geodesy.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00600/71248/69623.pdf

Comparing the role of absolute sea-level rise and vertical tectonic motions in coastal flooding, Torres Islands (Vanuatu)
Provedor de dados: 5
Autores: Ballu, Valerie; Bouin, Marie-noelle; Simeoni, Patricia; Crawford, Wayne C.; Calmant, Stephane; Bore, Jean-michel; Kanas, Tony; Pelletier, Bernard.
Since the late 1990s, rising sea levels around the Torres Islands (north Vanuatu, southwest Pacific) have caused strong local and international concern. In 2002-2004, a village was displaced due to increasing sea incursions, and in 2005 a United Nations Environment Programme press release referred to the displaced village as perhaps the world's first climate change "refugees." We show here that vertical motions of the Torres Islands themselves dominate the apparent sea-level rise observed on the islands. From 1997 to 2009, the absolute sea level rose by 150 +/- 20 mm. But GPS data reveal that the islands subsided by 117 +/- 30 mm over the same time period, almost doubling the apparent gradual sea-level rise. Moreover, large earthquakes that occurred just...
Tipo: Text
Palavras-chave: Geodesy; Seismic cycle; Island arcs; Vertical motion.
Ano: 2011
URL: https://archimer.ifremer.fr/doc/00144/25575/23734.pdf