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Author Testut L. openurl 
  Title Le littoral face aux changements climatiques. Type Communication
  Year 2014 Publication Interview radio rfi, émission “c'est pas du vent” diffusée le 13 avril 2014. Abbreviated Journal  
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  Notes Approved yes  
  Call Number Serial 6822  
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Author Testut L. openurl 
  Title L'élévation du niveau des mers. Type Non peer-reviewed symposium
  Year 2014 Publication Colloque-débat “réduire les risques littoraux et s'adapter au changement climatique”, 2-4 avril 2014, la rochelle. Abbreviated Journal  
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  Notes Approved yes  
  Call Number Serial 6823  
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Author André G., B. Martin Miguez, V. Ballu, L. Testut, G. Wöppelmann. openurl 
  Title Measuring sea-level with GPS-equipped buoys: A multi-instruments experiment at Aix Island. Type Communication
  Year 2013 Publication International hydrographic review, p. 27-38, november 2013. Abbreviated Journal  
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  Notes Approved yes  
  Call Number Serial 6824  
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Author Testut L., B. Martin Miguez, G. Wöppelmann Et V. Ballu. openurl 
  Title Observation du niveau de la mer dans le cratère de Saint-Paul, Océan Indien. Type Communication
  Year 2013 Publication Géologues n° 178, p. 103-108, septembre 2013. Abbreviated Journal  
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  Notes Approved yes  
  Call Number Serial 6825  
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Author Barruol Guilhem, Cordier Emmanuel, Bascou Jérôme, Fontaine Fabrice R., Legrésy Benoit, Lescarmontier Lydie doi  isbn
openurl 
  Title Tide‐induced microseismicity in the Mertz glacier grounding area, East Antarctica Type Journal
  Year 2013 Publication Geophysical Research Letters Abbreviated Journal  
  Volume 40 Issue 20 Pages 5412-5416  
  Keywords Adélie land Antarctica cryoseismology icequakes Mertz glacier tide  
  Abstract AbstractThe deployment of a seismic network along the Adélie and George V coasts in East Antarctica during the period 2009?2012 provides the opportunity to monitor cryoseismic activity and to obtain new insights on the relationship between tidal cycles and coastal glacier dynamics. Here we focus on records from a seismometer located on a rocky outcrop in the vicinity of the grounding line of the 35 km broad Mertz glacier, a major outflow of this region. We detect numerous icequakes (50,000 events within 10 months and up to 100 events/h) and demonstrate their clear tidal modulation. We suggest that they result from ice friction and fracturing around the rocky peak and from the glacier flexure in response to the falling and rising tides at its grounding area. We propose that such icequake monitoring could be used as a climate proxy since grounding lines are subject to migrate with sea level changes.  
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  ISSN 0094-8276 ISBN 0094-8276 Medium  
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  Notes Approved yes  
  Call Number Serial 6826  
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Author Wöppelmann Guy, Marcos Marta, Santamaría‐Gómez Alvaro, Martín‐Míguez Belén, Bouin Marie‐Noëlle, Gravelle Médéric doi  isbn
openurl 
  Title Evidence for a differential sea level rise between hemispheres over the twentieth century Type Journal
  Year 2014 Publication Geophysical Research Letters Abbreviated Journal  
  Volume 41 Issue 5 Pages 1639-1643  
  Keywords climate change geodesy GPS land motion sea level tide gauge  
  Abstract AbstractTide gauge records are the primary source of sea level information over multidecadal to century timescales. A critical issue in using this type of data to determine global climate?related contributions to sea level change concerns the vertical motion of the land upon which the gauges are grounded. Here we use observations from the Global Positioning System for the correction of this vertical land motion. As a result, the spatial coherence in the rates of sea level change during the twentieth century is highlighted at the local and the regional scales, ultimately revealing a clearly distinct behavior between the Northern and the Southern Hemispheres with values of 2.0?mm/yr and 1.1?mm/yr, respectively. Our findings challenge the widely accepted value of global sea level rise for the twentieth century.  
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  ISSN 0094-8276 ISBN 0094-8276 Medium  
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  Notes Approved yes  
  Call Number Serial 6829  
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Author J. Serafini, J.-P. Barriot, L. Sichoix doi  isbn
openurl 
  Title The evolution of precipitable water and precipitation over the Island of Tahiti from hourly to seasonal periods Type Journal
  Year 2014 Publication International Journal of Remote Sensing Abbreviated Journal  
  Volume 35 Issue 18 Pages 6687-6707  
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  Abstract The Island of Tahiti (French Polynesia) has a complex meteorological context governed by the South Pacific convergence zone on a large scale and the topography of a high volcanic island on the orographic scale. The island is subject to heavy rainfall (up to 8000 mm year–1 in some areas), mainly during the rainy season (November to April), generating significant geo-morphological changes and property damage each year. To better understand the underlying complex mechanisms leading to precipitation over a broad range of timescales (from hourly to seasonal), we have analysed eight years of data (2001–2008) coming from five sources: a radiometer, radiosoundings, a GPS, Era-Interim reanalysis, and two rain gauges, all located close to or inside the Matatia valley, a small typical Tahitian valley. In particular, we have decomposed the precipitable water distribution into two statistical distributions corresponding to the dry and wet seasons. The time evolution of precipitable water in the dry season is characterized by a log-normal distribution, while the precipitable water time evolution in the wet season is characterized by a reverse log-normal distribution. The bimodality of the probability distributions describing the dynamical processes involved in the Tahiti climate is confirmed by the study of the diurnal evolution in absolute humidity, precipitable water, and precipitation.  
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  ISSN 0143-1161 ISBN 0143-1161 Medium  
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  Notes Approved yes  
  Call Number Serial 6834  
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Author Park Young‐Hyang, Durand Isabelle, Kestenare Elodie, Rougier Gilles, Zhou Meng, d'Ovidio Francesco, Cotté Cédric, Lee Jae‐Hak doi  isbn
openurl 
  Title Polar Front around the Kerguelen Islands: An up‐to‐date determination and associated circulation of surface/subsurface waters Type Journal
  Year 2014 Publication Journal of Geophysical Research: Oceans Abbreviated Journal  
  Volume 119 Issue 10 Pages 6575-6592  
  Keywords Kerguelen Polar Front Southern Ocean  
  Abstract Abstract The circulation of iron?rich shelf waters around the Kerguelen Islands plays a crucial role for a climatically important, annually recurrent phytoplankton spring bloom over the sluggish shelf region and its downstream plume area along the Antarctic circumpolar flow. However, there is a long?standing confusion about the Polar Front (PF) in the Kerguelen region due to diverse suggestions in the literature for its geographical location with an extreme difference over 10° of latitude. Based on abundant historical hydrographic data, the in situ hydrographic and current measurements during the 2011 KEOPS2 cruise, satellite chlorophyll images, and altimetry?derived surface velocity fields, we determine and validate an up?to?date location of the PF around the Kerguelen Islands. Artificial Lagrangian particle trajectories computed from altimetric velocity time series are analyzed for the possible pathways and sources of different surface/subsurface waters advected into the chlorophyll bloom area east off the islands studied during the KEOPS2 cruise. The PF location determined as the northernmost boundary of the Winter Water colder than 2°C, which is also associated with a band of strong currents, appears to be primarily controlled by topography. The PF rounds the Kerguelen Islands from the south to deflect northward along the eastern escarpment up to the northeastern corner of the Kerguelen Plateau before making its southward retroflection. It is shown that the major surface/subsurface waters found within the deep basin east of the Kerguelen Islands originate from the shelf around the Heard Island, rather than from the shallow shelf north of the Kerguelen Islands.  
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  ISSN 2169-9275 ISBN 2169-9275 Medium  
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  Notes Approved yes  
  Call Number Serial 6839  
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Author Christopher S. Watson, Neil J. White, John A. Church, Matt A. King, Reed J. Burgette, Benoit Legresy doi  isbn
openurl 
  Title Unabated global mean sea-level rise over the satellite altimeter era Type Journal
  Year 2015 Publication Nature Climate Change Abbreviated Journal  
  Volume 5 Issue 6 Pages 565-568  
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  Abstract The rate of global mean sea-level (GMSL) rise has been suggested to be lower for the past decade compared with the preceding decade as a result of natural variability1, with an average rate of rise since 1993 of +3.2 ± 0.4 mm yr−1 (refs 2, 3). However, satellite-based GMSL estimates do not include an allowance for potential instrumental drifts (bias drift4,5). Here, we report improved bias drift estimates for individual altimeter missions from a refined estimation approach that incorporates new Global Positioning System (GPS) estimates of vertical land movement (VLM). In contrast to previous results (for example, refs 6, 7), we identify significant non-zero systematic drifts that are satellite-specific, most notably affecting the first 6 years of the GMSL record. Applying the bias drift corrections has two implications. First, the GMSL rate (1993 to mid-2014) is systematically reduced to between +2.6 ± 0.4 mm yr−1 and +2.9 ± 0.4 mm yr−1, depending on the choice of VLM applied. These rates are in closer agreement with the rate derived from the sum of the observed contributions2, GMSL estimated from a comprehensive network of tide gauges with GPS-based VLM applied (updated from ref. 8) and reprocessed ERS-2/Envisat altimetry9. Second, in contrast to the previously reported slowing in the rate during the past two decades1, our corrected GMSL data set indicates an acceleration in sea-level rise (independent of the VLM used), which is of opposite sign to previous estimates and comparable to the accelerated loss of ice from Greenland and to recent projections2,10, and larger than the twentieth-century acceleration2,8,10.  
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  ISSN 1758-6798 ISBN 1758-6798 Medium  
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  Notes Approved yes  
  Call Number Serial 6842  
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Author L. Testut, A.s. Unnikrishnan doi  isbn
openurl 
  Title Improving Modeling of Tides on the Continental Shelf off the West Coast of India Type Journal
  Year 2015 Publication Journal of Coastal Research Abbreviated Journal  
  Volume Issue Pages 105-115  
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  Abstract Testut, L. and Unnikrishnan, A.S., 2016. Improving modeling of tides on the continental shelf off the west coast of India. Global tidal solutions are sometimes inaccurate in coastal regions. This is particularly true in some regions of the northern Indian Ocean, which are characterized by wide continental shelves and large tidal ranges. We show that these global solutions are inaccurate on the shelf region off Mumbai, off the west coast of India. In this region, the shelf is very wide, and it opens into the Gulf of Khambhat, where large tides are observed. Moreover, in regions of large semidiurnal tides in the Bay of Bengal, such as the head Bay, Gulf of Martaban, etc., global tidal solutions are not accurate. In the present work, we focus on the shelf region off the west coast of India. We used a new approach in developing a high-resolution hydrodynamic tidal model for the inner shelf region (8°N to 22°N). The open boundary of the model is aligned to the altimetry tracks, which allowed us to prescribe boundary conditions obtained directly from observations. We show that the tidal solutions at the coast are much improved compared with those obtained from the global solutions and that on the wide shelf portion and the Gulf of Khambhat the improvement has been considerable.  
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  ISSN 0749-0208 ISBN 0749-0208 Medium  
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  Notes Approved yes  
  Call Number Serial 6848  
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