Arctic Ocean ; Cold area ; Marine hydrology ; Oceanic front ; Summer ; Tide ; White Sea
Arctique océan ; Eté ; Front océanique ; Hydrologie marine ; Marée ; Mer Blanche ; Zone froide
Synthèse des données fournies par les observations spécialisées et d'archives sur la position des zones de fronts dans la mer Blanche. Etude de la dynamique des fronts à différentes échelles spatio-temporelles. Une attention particulière est
accordée aux fronts de marée, qui, en été, séparent le Bassin maritime du Gorlo et du golfe d'Onega.
Initial hydrologic and geomorphic response following a wildfire in the Colorado Front Range
This study reports on the hydrologic and geomorphic response after a wildfire in a semi-arid, montainous system where the rainfall regime is characterized by short duration, high intensity summer rainfall. The short-term, transient response
was measured during the first four years after the wildfire. The process rates are compared to available pre-fire rates for the Colorado Front Range and to rates in the chaparral mountainous system of southern California with a mediterranean semi-arid climate
The influence of soil interstitial waters on the physicochemistry of major, minor and trace metals in stream waters of the Green Lakes valley, Front Range, Colorado
Colorado ; Ecosystem ; Human impact ; Hydrochemistry ; Hydrology ; Mountain ; Soil erosion ; Soil properties ; Trace-element ; United States ; Water quality ; Watershed
Use of cosmogenic 35S for comparing ages of water from three alpine-subalpine basins in the Colorado Front Range
Colorado ; Hydrochemistry ; Hydrology ; Isotope analysis ; Meltwater ; Mountain ; Rocky Mountains ; United States of America ; Water quality ; Watershed
The 35S activity of sulfate in water provides an estimate of the residence time of atmospherically deposited sulfate, and assuming conservative response of sulfate along the hydrologic flowpath, 35S activity can be used to approximate the residence
The rainstorm and flash flood at Mount Fulufjället in August 1997 : the meteorological and hydrological situation
higher amounts in other parts of the mountain. The precipitation was connected to a front attacking a high pressure that had been dominating the weather in Sweden for several weeks, but orographic lifting on the east-facing slopes of the mountain may
Internal structure of the Green Lake 5 rock glacier, Colorado Front Range, USA
Climatic change ; Colorado ; Geophysics ; Ground penetrating radar ; Hydrology ; Model ; Mountain ; Periglacial features ; Rock glacier ; Seismic method ; United States of America
Three different geophysical techniques (shallow seismic refraction, ground-penetrating radar (GPR) and electrical resistivity tomography)were used to develop a detailed subsurface model of the Green Lake 5 rock glacier in the Colorado Front Range
, USA. Results and discussion. The model of the internal structure was used to evaluate an existing hydrological flowpath model based on the hydrochemical properties of water outflow from the rock glacier. In conclusion, the AA. discuss the implications
Mécanisme de l'interaction locale océan-atmosphère dans la zone du front hydrologique subpolaire de l'Altantique Nord
Atlantic Ocean ; Atmosphere ; Atmospheric dynamics ; Cold area ; Hurricane;Cyclone ; Hydrometeorology ; Marine hydrology ; North Atlantic Ocean ; Ocean ; Ocean atmosphere interaction ; Oceanic front
Atlantique ; Atlantique Nord ; Atmosphère ; Cyclone ; Dynamique de l'atmosphère ; Front océanique ; Hydrologie marine ; Hydrométéorologie ; Interaction océan-atmosphère ; Océan ; Zone froide
Etude des mécanismes de l'interaction locale des formations cycloniques atmosphériques et du front hydrologique subpolaire. Au cours de l'expérience réalisée de novembre 1987 à avril 1988 on a établi 6 levés hydrophysiques synoptiques d'un polygone
dans la région frontale de la zone active de Terre Neuve avec un sondage aérologique simultané de l'atmosphère et on a effectué une étude de l'atmosphère en régime de polygone stationnel au cours de mars 1988. Le front hydrologique crée deux mécanismes
Streamflow patterns in the alpine environment of North Boulder Creek, Colorado Front Range
patterns of solar radiation which drives snowmelt. Together, these snowmelt-driven cycles account for up to 90 % of the variability in streamflow. Summer rainfall, though occasionally intense, has relatively little hydrologic influence in this system.
Occurrence and hydrological effects of water repellency in different soil and land use types in Mexican volcanic highlands
on recent ash sediments in plain surfaces. Shallow and irregular wetting fronts were observed at water-repellent zones, reducing the soil water storage capacity. The implications of soil water repellency in soil hydrology and erosion risk in the area shed
In this study the occurrence and hydrological effects of water repellency were investigated at a plot scale for different types of land use and volcanic soils in Mexican volcanic highlands from Michoacan, Mexico: [1] fir, pine and oak mixed forest
light on the soil hydrology of the studied ecosystems, and can contribute to develop better management policies.
Hydrochemistry ; Indian Ocean ; Marine hydrology ; Salinity ; Sea water ; Temperature ; Water mass
Résultats des recherches effectuées en 1964-1966 par le navire océanographique portugais Amiral Lacerda. Dans le canal, entre 20 et 21° lat. sud, passe un front hydrochimique que l'on observe nettement à toutes les profondeurs, de la surface
Arctic Region ; Canada ; Cold area ; Discharge ; Hydrogeology ; Hydrology ; Ice ; Permafrost ; Springs ; Water temperature
Etude de l'activité des sources pérennes du Fjord Expedition, dans la partie occidentale de l'île Axel Heiberg, Haut-Arctique canadien. Un premier groupe de sources est situé à Gypsum Hill, à 3 km du front des glaciers de White et de Thompson
Fradusta glacier (Pale di San Martino massif), the second largest icefield in Italian Dolomites, is evidencing a fast retreat, with a surface area reduction of about 90% in the last 100 years, and a negative variation of glacier front of 115.5 m
in this study, since it was proposed is an in situ, environmentally-friendly chemical tracer for a better understanding of hydrological karstic circulation. - (NF)
Mesures effectuées sur la marge glaciaire de 14 glaciers, de 1970 à 1978 dans la région de Dudh Kosi, Est du Népal dans le cadre de la Glaciological Expedition of Nepal (GEN). Beaucoup de glaciers sont en période de retrait. Le retrait du front du
International Association of Hydrological Sciences. (IAHS), International
Atlantique ; Date 2008 ; Dégât ; France ; France du Nord-Ouest ; Front froid ; Hydrologie marine ; Inondation ; Littoral ; Manche ; Onde de tempête ; Surcote marine ; Tempête
combinaison de 3 facteurs indépendants (surcote importante, houle puissante et une pleine mer de vive-eau). Les AA. étudient aussi le rôle joué par les fronts froids. Dans la dernière partie, bref état des lieux des différents impacts morphogéniques qui ont
Etude de l'événement climatique extrême tropical (ECET) du 21 novembre 2006 : un talweg accompagné d'un front froid en combinaison avec une masse d'air chaud humide tropicale (onda tropical) et ses effets sur le bassin versant de Miguel de la Borda
, dans le territoire Costa Abajo de Colón, Panama. Modélisation hydrologique de l'inondation consécutive à cet ECET avec l'application HEC-HMS (Hydrologic Engineering Center - Hydrologic Modeling System). Présentation de scenarii de comportements
The role of time in the hydrological behavior of residual soil slopes during rainfall events
River, Taiwan. A typical relationship between soil moisture content and time is identified for the soil in the slope during a rainfall event, and two key times are defined in the relationship : the time when the wetting front in the soil at a given depth