Éditeur(s) : London : T. Fisher Unwin
Extrait de : The adventure series
Résumé : A new illustrated edition. Le traducteur Charles Johnson serait un pseudonyme, souvent attribué à Daniel Defoe, à tort d'après l'Oxford DNB (entrée : Johnson, Charles (fl. 1724-1734)).
Siècle(s) traité(s) : 16
Droits : Domaine public
Provenance : Archives territoriales de Guyane
Permalien : http://www.manioc.org/patrimon/GAD12006
GAD12006

Éditeur(s) : Elsevier
Résumé : The study, which is based on repetitive bathymetric surveys, assesses changes and effects of one of the most important floods recorded in the Rhone Delta area: bottom morphology and sediment distribution in the Rhone outlet after the December 2003 flood are discussed by comparison between Digital Terrain maps (DTMs) of November 2003 and January 2004. The post-flood morphology shows that the whole of the system is active, mainly in the east. The channel of the Rhbne has been hollowed out on the left bank by more than 5 m, the eastern coast of the mouth has retreated 400 m, the mouth-bar has prograded 200 m and the slope of the delta front has increased by 0.19. The overlay of pre- and post-flood DTMs makes it possible to estimate the total volume deposited in the [0 to -20 m] zone as +7.8 X 10(6) m(3) (i.e. 0.88 m(3) m(-2)), which corresponds to 4 X 10(6) t of sediment. These values are compared with the average annual volume of 0.47 X 10(6) m(3) yr(-1) of sediment deposited in this zone between 1995 and 2003, as well as the average sediment load estimated at the Arles station (50 km upstream) for this flood event (3.1 x 10(6) t to 5.3 x 10(6) t). The acquisition of bathymetric measurements immediately before and after a major flood allows more than a simple morphological description; in addition, an analysis of the solid load transfer processes towards the prodelta is achievable. Three mechanisms are highlighted. Most of the material eroded in the channel and supplied to the delta front corresponds to fine sediment that drape homogeneously over the pre-flood morphology of the delta front. The transit of the coarsest sediment (primarily sand) is slowed down in the channel of the Rh6ne: this sediment builds up in relatively small areas, leading to the formation of gullies on the prodelta slope. The gullies have fixed positions and disappear gradually towards the west, following the progressive migration of the active band towards the east. These old features are not reactivated by floods occurring after their formation. During the flood, only a small volume of coarse sediment bypasses through the gullies, and the fine deposits are remobilised rapidly or compacted. Flood input concerns essentially the delta front, which traps 90% of the fluvial solid discharge between 0 and 20 m depth. The coarse prodelta supply is then due mainly to mass movements of unconsolidated material deposited beforehand on the top of the delta front. Consequently, the main nourishment of the prodelta does not occur directly during and/or immediately after a flood event, but is delayed by sediment being temporarily trapped on the delta front.
Marine Geology (0025-3227) (Elsevier), 2006-12 , Vol. 234 , N. 1-4 , P. 159-177

Droits : 2006 Elsevier B.V. All rights reserved
http://archimer.ifremer.fr/doc/2006/publication-2304.pdf
DOI:10.1016/j.margeo.2006.09.025
http://archimer.ifremer.fr/doc/00000/2304/

Résumé : Ifremer launched and coordinated the development of a strategy for the REBENT network (REseau BENThique) in 2000 to monitor the aftermath of the "Erika" oil spill in December 1999. Its aim is to provide consistent baseline knowledge about coastal benthic habitats and constitute a monitoring tool to detect changes at various scales over time and space. Sector-based seabed habitat mapping in shallow water (< 50 m deep), is currently being conducted throughout Brittany's coastal waters through a combination of geoacoustic marine systems and ground-truthing using biological grab sampling and seabed observations. Sedimentological and biological results on Glenan area emphasize a great diversity of subtidal habitats and marine species recognized. Sidescan imagery accentuates the complexity of the communities structure in a marine environment distinguished by strong and regulary roughness of the sea. Maerl biocenose is present at the nord-east of the archipelago. Progressively it gives way to mud sediment colonized by Amphiura filiformis and Haploops in the deeper channel. To the west and the south, substratum types are more coarse, occasionally mobiles, composed of essentially sand community with Nephtys and gravelly sand community with Branchiostoma lanceolatum.
Le Rebent (Réseau benthique), initié en 2000 à la suite de la catastrophe de l'Erika, a pour objectif de suivre les habitats benthiques côtiers et de détecter les changements à différentes échelles de temps et d'espace. L'approche sectorielle dans les petits fonds (< 50 m) des côtes bretonnes combine, des moyens de prospection acoustique, afin de délimiter les principaux types de substrats, avec des prélèvements et des observations biologiques pour caractériser les peuplements macrobenthiques. Les résultats des analyses sédimentologiques et faunistiques montrent autour de l'archipel des Glénan, une grande diversité d'habitats et d'espèces reconnues. L'imagerie acoustique fait ressortir la complexité de leur structuration dans un environnement marin soumis à de fortes et régulières périodes d'agitation. La biocénose de maërl occupe le nord-est de l'archipel. Elle laisse place progressivement aux sédiments envasés à Amphiura filiformis et aux vases à Haploops dans le fond du chenal. A l'ouest et au sud, les subtrats sont plus grossiers, essentiellement sableux à Nephtys et sablo-graveleux à Branchiostoma lanceolatum, épisodiquement mobiles.

Droits : info:eu-repo/semantics/openAccess
http://archimer.ifremer.fr/doc/2006/rapport-2301.pdf
http://archimer.ifremer.fr/doc/2006/sup-2301.pdf
http://archimer.ifremer.fr/doc/00000/2301/

Éditeur(s) : HAL CCSD American Geophysical Union
Résumé : International audience
In Taiwan, about one third of the lithospheric plate convergence between Eurasia and the Philippine Sea plate is accommodated on the eastern coast across the narrow Longitudinal Valley (LV). The Longitudinal Valley Fault (LVF) is the main seismically active fault zone in this region. However, the spatial distribution of ground deformation due to interseismic loading on locked fault segments remains widely unknown. To address this problem, we use a "permanent scatterer" (PS) interferometric synthetic aperture radar (InSAR) approach for processing the ERS satellite archives. The PS mean velocity maps allow accurately mapping and quantifying the ground deformation all along the LV. Assuming that, close to the surface, the fault plane along the central LVF creeping segment dips 55 degrees to the east, we derive a slip vector at the surface of similar to 25 mm/yr with a mean rake of 70 degrees. In agreement with our PS observations, shallow seismicity indicates a clear change in the fault mechanical behavior of the creeping segment around Fuli town. Finally, we propose a combination of the PS velocity fields for estimating a 3-D map of ground deformation. In the southern part of the LV, the vertical component reveals an uplift of the Coastal Range with respect to the LV of similar to 10 mm/yr. Moreover, between Taitung and Luyeh, the vertical deformation is essentially accommodated along the Luyeh Strand. Finally, north of Rueisuei, the Coastal Range uniformly subsides at similar to 15 mm/yr relative to the western side of the LV. However, a local uplift pattern is detected around latitude 23 degrees 42'.
ISSN: 0148-0227

hal-00595532
https://hal.archives-ouvertes.fr/hal-00595532
DOI : 10.1029/2010JB007898

Éditeur(s) : HAL CCSD American Meteorological Society
Résumé : Global positioning system (GPS) data from a dense network have been used for the analysis of the diurnal cycle of water vapor over Marseille, France, during the second intensive observation period (IOP2; 21–26 June 2001) of the Expérience sur Sites pour Contraindre les Modèles de Pollution Atmosphérique et de Transport d'Emission (ESCOMPTE) field experiment. Both tomographic analyses and integrated water vapor (IWV) contents from GPS have been used, in addition to wind profiler data and surface observations. Tomographic analysis of data from the dense GPS network and radiosondes provided the continuous temporal evolution of the vertical distribution of water vapor over the city of Marseille. The city is located on the shore of the Mediterranean Sea in southeastern France and is often under the influence of sea-breeze effects. Two different layers of breeze circulation are identified: a shallow sea breeze, blowing perpendicular to the local coastline, and a deep sea breeze, induced by the regional temperature gradient between sea and land. The origin of water vapor is shown to be mainly due to the advection of marine moist air by these sea-breeze circulations. However, the diurnal cycle of water vapor over Marseille is strongly influenced by the synoptic situation, which changes during the IOP2 (between a northerly mistral in the early stage of the IOP and an easterly wind at the end). It is shown that vertical profiles from tomographic analyses (combined with wind profiler data) allow for a proper interpretation of the diurnal cycle observed in IWV. Two-dimensional maps of IWV are also shown to complement the description of the horizontal advection of moisture by the different circulation regimes.
ISSN: 1558-8424

hal-00273624
https://hal.archives-ouvertes.fr/hal-00273624
https://hal.archives-ouvertes.fr/hal-00273624/document
https://hal.archives-ouvertes.fr/hal-00273624/file/drJAM_cycle_diurne_GPS_rev1.pdf
DOI : 10.1175/JAM2450.1

Éditeur(s) : HAL CCSD
Résumé : The Manche-à-Eau lagoon, brackish water ecosystem is subject to tide, trade winds and hurricanes. The 2004 map (IGN) is covered of a 90 m aside square, to place 37 spots in a GIS and to limit them on the field with a GPS. From aerial photos, the outlines drawing allows morphological follow up since 1950. Depth is measured at 1437 spots with bathymetric perch and prob. Stream direction is established during stream and ebb tide using ribbon fixed to the spot and a compass. Water volumes at low and high tide allow calculating the water renewal rate, at each tide. The mapping follow-up shows outlines and island stabilization because of the “shield effect” and soil (root peat), small islands aggregation/disaggregation depending of hurricanes passing. The present bathymetry shows the lagoon filling and the channels digging. General streams are subject to trade-winds (SSE-NNW) andthe tide movement to and fro. The up and down water generates a stream channel situated along the outlines and around dips and sandbanks. Water renewal volume (14.8 %) at each tide, combined with an active and various hydrodynamism tends to improve the water quality in this system.
Evolución Morfológica de la Laguna del Manglar Manche-à-EAU (Guadalupe, Antilles Francesas) de 1950 a 2004, y su batimetría eb 2007La laguna del Manche-à-Eau, ecosistema de agua salobre está sometido a la marea, a los alisios y a los huracanes. El mapa IGN de 2004 está dividido según una malla de 90 m para colocar 37 puntos en un SIG y limitarlos in situ con un GPS. Según las fotografías aéreas, el dibujo de los contornos hace posible el seguimiento morfológico desde 1950. La profundidad se mide en 1437 puntos con una pértiga y una sonda batimétrica. La orientación de las corrientes se establece en el mar y en el reflujo con catavientos fijados en los puntos, y una brújula. Las masas de agua entrantes y salientes permiten el cálculo del volumen de agua renovado durante cada marea. El seguimiento cartográfico muestra una estabilización de los contornos y de la isla debido al “efecto de escudo” y al suelo (turba de raíz), y una agregación/desagregación de los islotes según el paso de los huracanes. De acuerdo a la batimetría actual, se constatan el relleno de la laguna y la excavación de los canales. Las corrientes generales son controladas en superficie por los alisios, vientos de SSE-NNO y por el vaivén de la marea. Los movimientos ascendentes y descendentes de agua generan corrientes profundas a lo largo de los bordes y alrededor de depresiones y bajos. El volumen de agua renovado durante cada marea (14,8%) combinado al hidrodinamismo activo y variado tiende a vivificar este ecosistema.
La lagune de la Manche-à-Eau, écosystème d’eau saumâtre est soumis à la marée, aux alizés et aux ouragans. La carte IGN de 2004 est quadrillée selon une maille de 90 m pour placer 37 points dans un SIG et les borner sur le terrain avec un GPS. D’après les photographies aériennes, le dessin des contours rend possible le suivi morphologique depuis 1950. La profondeur est mesurée à 1437 points avec une perche et une sonde bathymétrique. L’orientation des courants est établie au flot et au jusant avec des penons fixés aux points, et une boussole. Les masses d’eau entrantes et sortantes permettent le calcul du volume d’eau renouvelé à chaque marée. Le suivi cartographique montre, une stabilisation des contours et de l’île due à « l’effet bouclier » et au sol (tourbe racinaire), et une agrégation/désagrégation des îlots selon le passage des ouragans. D’après la bathymétrie actuelle, le comblement de la lagune et le creusement des chenaux sont constatés. Les courants généraux sont gouvernés en surface par les alizés, vent de SSE-NNO et par le va-et-vient de la marée. Les descentes et remontées d’eau obligent ceux-ci à emprunter en profondeur les passages situés le long des berges et autour des dépressions et des hauts-fonds. Le volume d’eau renouvelé à chaque marée (14,8 %) combiné à l’hydrodynamisme actif et varié tend à vivifier cet écosystème.
Proceedings of the 61st Gulf and Caribbean fisheries institute
Le Gosier, Guadeloupe, France

hal-01600092
https://hal.archives-ouvertes.fr/hal-01600092
PRODINRA : 384819

Éditeur(s) : HAL CCSD Blackwell Publishing
Résumé : International audience
Differentiating between forced regressive deposits from deglacial periods inhigh latitude domains and forced regressive deposits from the onset of glacialperiods in low latitude domains is fundamental for the accurate interpretationof glacial cycles within the geological record and then for thereconstruction of palaeogeography and palaeo-climate. A forced regressivedeglacial sequence is documented from the Lake Saint-Jean basin (Quebec,Canada). In this area, the Late Pleistocene to Holocene sediments haverecorded the Laurentide ice sheet retreat accompanied by the invasion ofmarine waters (Laflamme Gulf) from ca 129 cal kyr BP. Subsequently, fluviodeltaicand coastal prograding wedges were deposited; they followed thebase-level fall due to glacio-isostatic rebound. This succession, representinga transition from glacial to post-glacial periods within a previously glaciatedarea, was investigated through recent mapping, preserved landforms, faciesanalysis, and new optical stimulated luminescence and radiocarbon dates.Three basin-scale geological sections share a common lower part made ofisolated ice-contact fan deposits overlying bedrock. Throughout the entirebasin, ice-contact fans are capped by glacimarine muds. Above, fluvial andcoastal prograding systems were deposited and evolved through four steps:(i) deltaic systems progressively increased in width; (ii) coastal influence onsedimentation increased; (iii) hydrographic drainage systems became moreorganised; and (iv) deltas graded from steep (Gilbert delta) to low-angle foresets(mouth-bar delta). Deposited during the base-level fall from glacioisostaticrebound, the complete succession has been designated as a singlefalling stage system tract referred to as a deglacial falling stage system tract.It is representative of a deglaciation sequence in areas previously covered byice during glacial periods (i.e. medium to high latitude domains). Diagnosticcriteria are provided to identify such a deglacial falling stage system tract inthe geological record, which may aid identification of previously unknownglacial cycles.
ISSN: 1469-3496

insu-01184731
https://hal-insu.archives-ouvertes.fr/insu-01184731
DOI : 10.1111/sed.12196

Éditeur(s) : London : Hamilton, Adams & Co
Siècle(s) traité(s) : 19
Droits : Domaine public
Provenance : Ville de Pointe-à-Pitre. Réseau des bibliothèques
Permalien : http://www.manioc.org/patrimon/HASH0103f0f83da4829c83c1b88d
HASH0103f0f83da4829c83c1b88d

Éditeur(s) : Hamburg, Paris, Milano : The Albatross
Siècle(s) traité(s) : 20
Provenance : Université Caen Normandie. Service commun de la documentation
Permalien : http://www.manioc.org/patrimon/CAE19035
CAE19035

Éditeur(s) : HAL CCSD Elsevier
Résumé : International audience
Recent sedimentary facies and processes along the offshore slope of east Taiwan are investigated using a large set of geophysical and sedimentological data. The Taiwan orogen is often considered as one of the most tectonically active regions in the world and also suffers important climatic activity with an average of four typhoons per year. We have mapped in details the morphosedimentary features and characterized the sedimentary facies along offshore eastern Taiwan. There, we show that the slope is driven by a variety of erosional processes from mass wasting to turbidity current. Mass movements such as slides or mass transport deposits (MTDs) are ubiquitous and affect the whole east coast off Taiwan. Detailed core investigations, such as grain size analysis, chemical and mineralogical composition, revealed that turbidite facies range from thin fine-grained turbidites to thick massive turbidite facies. The detailed analysis of turbidite beds allow us to discuss the controlling factors of turbidity current generation. Turbidity currents represent an important sedimentary process that governs the slope morphology off east Taiwan. Triggering mechanisms likely range from slope instabilities related to earthquakes shaking to failure relative to climatic-controlled pulses of sediment supply. We propose that at least two end-members are characteristics in our turbidite records in term of controlling factor:1) Turbidity currents likely generated by tectonic activity and earthquakes shaking in particular; and2) Turbidity currents likely generated by climatic activity such as typhoon-induced floods.
ISSN: 0025-3227

hal-01277768
https://hal.archives-ouvertes.fr/hal-01277768
DOI : 10.1016/j.margeo.2015.05.013

Éditeur(s) : London : J. Johnson, St. Paul's Church Yard & J. Edwards
Siècle(s) traité(s) : 18
Droits : Domaine public
Provenance : Collectivité territoriale de Martinique. Bibliothèque Schoelcher
Permalien : http://www.manioc.org/patrimon/SCH13242
SCH13242

Éditeur(s) : Edinburgh, London
Siècle(s) traité(s) : 19
Provenance : Université Caen Normandie. Service commun de la documentation
Permalien : http://www.manioc.org/patrimon/CAE19033_3
CAE19033_3

Éditeur(s) : IEEE
Résumé : Bathymetric estimation using remote sensing images has previously been applied to high spatial resolution imagery such as CASI, Ikonos, or SPOT but not on medium spatial resolution images (i.e., MERIS). This choice can be justified when there is a need to map the bathymetry on large areas. In this letter, we present the results of the bathymetry estimation over a large known area, the Gulf of Lion (France), expanding over 270 x 180 km.
Geoscience and Remote Sensing Letters, IEEE (1545-598X) (IEEE), 2007-04 , Vol. 4 , N. 2 , P. 274-277

Droits : 2007 IEEE
http://archimer.ifremer.fr/doc/2007/publication-2597.pdf
DOI:10.1109/LGRS.2007.890548
http://archimer.ifremer.fr/doc/00000/2597/

Éditeur(s) : Paris : Imprimerie de Béthune et Plon
Siècle(s) traité(s) : 19
Droits : Domaine public
Provenance : Collectivité territoriale de Guyane. Bibliothèque Alexandre-Franconie
Permalien : http://www.manioc.org/patrimon/FRA11103
FRA11103

Éditeur(s) : Berne : Imprimerie Staempfli
Description : Le Contesté franco-brésilien est un différend soulevé entre les gouvernements français et brésilien, sur la question de la délimitation de la frontière entre la Guyane et le Brésil. Le protocole du 10 avril 1897, signé entre la France le Brésil détermine que la rivière Japoc ou Vincent Pinçon est l'Oyapoc et que la limite intérieure se forme à partir de la source principale de cette rivière jusqu'à la frontière hollandaise par la ligne de partage des eaux du bassin des Amazones qui, dans cette région est constituée dans sa presque totalité par la ligne de faîte des monts Tamuc-Humac.
Siècle(s) traité(s) : 18
Droits : Domaine public
Provenance : Collectivité territoriale de Guyane. Bibliothèque Alexandre-Franconie
Permalien : http://www.manioc.org/patrimon/HASH015f003f607723da490ab6ba
HASH015f003f607723da490ab6ba

Éditeur(s) : Paris : Société de Géographie
Siècle(s) traité(s) : 19
Droits : Domaine public
Provenance : Collectivité territoriale de Guyane. Bibliothèque Alexandre-Franconie
Permalien : http://www.manioc.org/patrimon/FRA11078
FRA11078

Éditeur(s) : HAL CCSD Editions Paralia CFL
Résumé : L'objet de cette communication est la caractérisation hydrodynamique d'un système double de barres festonnées en milieu microtidal. Pour comprendre l'évolution du littoral de Leucate-Plage (Languedoc-Roussillon, France), une campagne de mesures hydrodynamiques in-situ a été réalisée, puis complétée par une étude à l'aide du modèle numérique Quasi-3D SHORECIRC de la houle et des courants dans des conditions plus dynamiques non observées. Les mesures in-situ ont permis de réaliser des cartes de circulation hydrodynamique. Les données modélisées donnent des résultats proches de la réalité en terme d'intensité dans la zone de déferlement, en termes de direction et d'intensité dans la zone deshoaling. This paper deals with the hydrodynamic study of a microtidal double crescentic bars system. To understand the coastal evolution of Leucate-Plage (Languedoc- Roussillon, France), a hydrodynamic survey has been realized, added to numerical studies with Q-3D SHORECIRC model for more dynamic unobserved conditions. Hydrodynamic maps with observed data have been produced. The numeric hydrodynamic maps show good analogies in the shoaling zone but some difference in the surf zone.
ISSN: 1760-8716

hal-00854013
https://hal.archives-ouvertes.fr/hal-00854013
DOI : 10.5150/jngcgc.2008.007-F

Éditeur(s) : Paris : A. Picard et fils

Droits : Domaine public
Provenance : Université de Nantes. Service commun de la documentation
Permalien : http://www.manioc.org/patrimon/NAN13024
NAN13024

Éditeur(s) : Berne : Imprimerie Staempfli
Description : Le Contesté franco-brésilien est un différend soulevé entre les gouvernements français et brésilien, sur la question de la délimitation de la frontière entre la Guyane et le Brésil. Le protocole du 10 avril 1897, signé entre la France le Brésil détermine que la rivière Japoc ou Vincent Pinçon est l'Oyapoc et que la limite intérieure se forme à partir de la source principale de cette rivière jusqu'à la frontière hollandaise par la ligne de partage des eaux du bassin des Amazones qui, dans cette région est constituée dans sa presque totalité par la ligne de faîte des monts Tamuc-Humac.
Siècle(s) traité(s) : 19
Droits : Domaine public
Provenance : Collectivité territoriale de Guyane. Bibliothèque Alexandre-Franconie
Permalien : http://www.manioc.org/patrimon/HASH2de6a5e37668e22ec8b2bd
HASH2de6a5e37668e22ec8b2bd

Éditeur(s) : Paris : Libraire de Ch. Delagrave
Extrait de : Bulletin de la société de géographie
Résumé : Contient l'article : Notices géologiques sur la haute Guyanne française, d'après les explorations du docteur Crevaux. Articles manquants.
Siècle(s) traité(s) : 19
Provenance : Archives départementales de Guadeloupe
Permalien : http://www.manioc.org/patrimon/ADG18105
ADG18105