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Academic literature on the topic 'Variation inter-annuelle'
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Journal articles on the topic "Variation inter-annuelle"
Achite, M., and M. Meddi. "Variabilité spatio-temporelle des apports liquide et solide en zone semi-aride. Cas du bassin versant de l'oued Mina (nord-ouest algérien)." Revue des sciences de l'eau 18 (April 12, 2005): 37–56. http://dx.doi.org/10.7202/705575ar.
Full textAssani, A. A., É. Gravel, T. Buffin-Bélanger, and A. G. Roy. "Impacts des barrages sur les débits annuels minimums en fonction des régimes hydrologiques artificialisés au Québec (Canada)." Revue des sciences de l'eau 18, no. 1 (April 12, 2005): 103–27. http://dx.doi.org/10.7202/705552ar.
Full textHuber, Claire, Fengshan Li, Xijun Lai, Sadri Haouet, Arnaud Durand, Suzanne Butler, James Burnham, et al. "Using Pléiades HR data to understand and monitor a dynamic socio-ecological system: China's Poyang lake." Revue Française de Photogrammétrie et de Télédétection, no. 209 (January 29, 2015): 125–31. http://dx.doi.org/10.52638/rfpt.2015.206.
Full textRossel, F., P. Le Goulven, and E. Cadier. "Répartition spatiale de l'influence de l'ENSO sur les précipitations annuelles en Équateur." Revue des sciences de l'eau 12, no. 1 (April 12, 2005): 183–200. http://dx.doi.org/10.7202/705348ar.
Full textDissertations / Theses on the topic "Variation inter-annuelle"
Escobar, sandoval Margarita. "Plasticité phénotypique inter et intra-annuelle de la croissance radiale et d’autres propriétés liées à la formation du cerne chez le mélèze." Thesis, Paris, Institut agronomique, vétérinaire et forestier de France, 2020. http://www.theses.fr/2020IAVF0022.
Full textPhenotypic plasticity is the ability of individual genotypes to adjust to environmental variation. In this thesis we used larch annual ring traits to estimate phenotypic plasticity at two-time scales: between years (chap. 1, inter-annual phenotypic plasticity) and within years (chap. 2, intra-annual phenotypic plasticity). In chap. 1 we analyzed annual rings of European larches distributed in four plots along a natural elevational gradient near Briançon, in the French Alps. The phenotypic plasticity of radial growth and latewood density as a function of maximum temperature tends to be negative at low elevation (1350 m) and distinctly positive at high elevations (2300 m), where European larch seems to react favorably to temperature increase. No elevation trend emerges for earlywood density, which mostly exhibits negative or null phenotypic plasticity. The phenotypic plasticity of mean ring density is intermediate between that of earlywood and of latewood density. In chap. 2 we used intra-annual radial growth curves recorded with automatic point dendrometers during four successive growing seasons in an experimental trial combiningseveral water regimes and three species of larch. From such curves we obtainedphenotypic plasticity variables for radial growth and the dynamics of water in the trunk as a function of several climatic variables. All phenotypic plasticity variables and all environmental conditions combined, hybrid larch is a little more plastic than Japanese larchand much more than European larch, which reflects its ability to quickly and efficiently replenish and use his water reserve. We hypothesize that this contributes to its greater vigor.In general, there are as many types of plasticity as there are combinations of phenotypic traits and environmental variable. Phenotypic plasticity summarizes in a single value all the dynamics of a particular response. While in natural selection a high plasticity seems to be an advantage, it is not so evident in artificial selection
Barral, Quentin-Boris. "Caractérisation du front Nord-Baléares : Variabilité et rôle de la circulation des masses d'eau en Méditerranée Occidentale." Electronic Thesis or Diss., Toulon, 2022. http://www.theses.fr/2022TOUL0006.
Full textThe Western Mediterranean is one of the basins with the most plastic pollution in the world, and its surface warming is four times more intense than that of the oceans. It is a so-called "laboratory basin" for the study of the global ocean : it develops its own overturning circulation. Its currentology is composed of 4 layers and about 6 water masses. The meeting of two water masses of different surface temperatures and salinities creates a thermohaline front. This thesis presents recent advances in the characterisation of front zones and water mass dynamics in the Western Mediterranean. The detection of surface fronts in a simulation, and on satellite observations, has produced maps of front presence statistics. Two major zones of fronts, of temperature and salinity, appear in the centre of the basin and are very different. The first is thermal, summer and 50m deep. It starts in the Pyrenees but fades towards the north-west of Corsica. The second is haline, quasi-permanent and over 200m depth. It clearly connects the Balearic Islands to southwestern Sardinia. Previously confused within a single "North Balearic front", their different origins and locations imply that two new designations are proposed. The haline front zone marks the boundary between young southern Atlantic waters (AW) and old northern waters (mAW). It is displaced southwards during the interannual deep water formation (DWF) of the Provençal basin, and then moves northwards under the influence of Algerian eddies (AEs). The development of an algorithmfor separating the 6 different water masses allowed the description of the particular circulation of each of them in the simulation. The average circulations coincide with the known literature. Then, besides an unrealistic deep circulation event, two important results are deduced. On the one hand, the simulation shows that the DWF of the Provençal Basin seems to dislocate the deep East Algerian gyre, modifying in turn the trajectory of the surface AEs. On the other hand, the 2005 DWF induced a deep water transit towards the Tyrrhenian Sea in 2009. However, this transit induced a surface return flow of mAWs through the Sardinia Channel towards the Algerian Basin, instead of the usual inflow through the Corsica Channel, and exceptionally causing AWto reach the Ligurian Sea