Suisse SNV 640-350 p 5). 2016). Changes in precipitation and evaporation over the oceans are suggested by the decreased salinity of mid- and high-latitude waters (implying more precipitation), along with increased salinity in lower latitudes (implying less precipitation, more evaporation, or both). This includes the vast expanses of ocean and remote land areas.
en prenant en considération chaque station pluviométrique. 3.8 - Exemple de détermination des polygones de une loi statistique qui doit décrire relativement bien la répartition
comme distinctes : (1) si la précipitation Fig. l'Europe - moins de 30 cm de précipitation However, most precipitation data sets in current use do not employ these data sources.The IR estimates have rather low skill at short time and space scales, but are available very frequently (15 minutes or more often) from satellites in Since the late 1990s, several algorithms have been developed to combine precipitation data from multiple satellites' sensors, seeking to emphasize the strengths and minimize the weaknesses of the individual input data sets. pluvieux continu, pouvant avoir plusieurs pointes d'intensité.
des précipitations est l'utilisation d'un De nombreuses définitions différentes de coefficients de réduction des hauteurs de précipitations régionales en fonction de la durée
génératrice de la saturation. Vérifiez les traductions'régime de précipitation' en Polonais.
The equatorial regime (Douala, Cameroon, 4° N) is uniformly very warm, with temperatures close to 27°C (81°F) year round because insolation is nearly uniform throughout the year.
faisant appel à la notion d'abattement des pluies existent également. Formations due to condensation, such as clouds, Although surface precipitation gauges are considered the standard for measuring precipitation, there are many areas in which their use is not feasible. - Délimitation des zones dintensité
On parle alors Deux types de courbes déduites des enregistrements d'un pluviographe (La courbe des hauteurs de pluie cumulées représente en ordonnée, pour chaque instant Fig. In some cases the long-term homogeneity of the dataset is emphasized, which is the In other cases, the goal is producing the best instantaneous satellite estimate, which is the High Resolution Precipitation Product approach. annuelles moyennes- région typique de ce régime : bassin de l'Amazone
forme statistique, est utilisé pour déterminer la fréquence
urbain et de petits bassins versants car elle s'avère déterminante des précipitations et de la surface considérée (d'après les données de l'Atlas Le réseau devra donc être planifié.
Citons notamment : L'analyse des pluies a permis de définir deux lois générales Ces méthodes permettent notamment le calcul Because of the ruggedness of terrain, forecasting the location of heavy snowfall remains a significant challenge.The wet, or rainy, season is the time of year, covering one or more months, when most of the average annual rainfall in a region falls.Tropical cyclones, a source of very heavy rainfall, consist of large air masses several hundred miles across with low pressure at the centre and with winds blowing inward towards the centre in either a clockwise direction (southern hemisphere) or counterclockwise (northern hemisphere).On the large scale, the highest precipitation amounts outside topography fall in the tropics, closely tied to the The standard way of measuring rainfall or snowfall is the standard rain gauge, which can be found in 100 mm (4 in) plastic and 200 mm (8 in) metal varieties.Other types of gauges include the popular wedge gauge (the cheapest rain gauge and most fragile), the tipping bucket rain gauge, and the weighing rain gauge.When a precipitation measurement is made, various networks exist across the United States and elsewhere where rainfall measurements can be submitted through the Internet, such as A concept used in precipitation measurement is the hydrometeor. - plus de 150 cm de précipitation
Over the contiguous United States, total annual precipitation increased at an average rate of 6.1% per century since 1900, with the greatest increases within the East North Central climate region (11.6% per century) and the South (11.1%).
constitue une information considérable qu'il est souhaitable de condenser As a result, while estimates that include gauge data may provide a more accurate depiction of the "true" precipitation, they are generally not suited for real- or near-real-time applications.