ANDRÉASSIAN , Vazken

AQUACLEW (Advancing Data Quality for European Water Services) is an ERA4CS project with the overall goal to improve quality of climate services. The project brings together nine European organisations, with different experience and expertise in developing climate services, providing data and collaborating with users. The project aims to...

We show here how it is possible to simplify the use of hydrological maps by using a web interface, which we suggest to enrich by adding a longitudinal river flow profile, in order to visualise the upstream-downstream evolution of river discharge. The paper presents the first results obtained by an automatic processing procedure for the...

Recent floods have highlighted the high vulnerability of Haitian territories to hydro-meteorological hazards. For example, the coastal city of Cayes (southern Haiti) has been heavily impacted by the torrential rainfall of October 5 to 6, 2018, with numerous damaged buildings. In Haiti, the only time period of continuous observations of both...

Depuis 30 ans, l'équipe Hydrologie des bassins versants d'IRSTEA a développé la famille des modèles hydrologiques pluie-débit « GR » permettant de simuler les débits des cours d'eau. Ces modèles ont montré leur flexibilité à travers de bonnes performances sur une très grande variété de bassins versants (régions enneigées, arides, etc.) et ils...

The Hydrology Group at Irstea (Antony) has been developing a suite of rainfall-runoff models over the past 30 years. This resulted in a suite of models running at different time steps (from hourly to annual) applicable for various issues including water balance estimation, forecasting, simulation of impacts and scenario testing. Recently,...

Cette note présente l'outil de visualisation cartographique ProfHyl, qui propose une représentation originale du débit de référence des cours d'eau sous forme de profils en long, assurant une cohérence amont-aval explicite des valeurs de débit. Les cartes produites deviennent plus aisément utilisables, notamment par des utilisateurs...

International audience

Haiti, a Caribbean country, is highly vulnerable to hydroclimatic hazards due to heavy rainfall, which is partly linked to tropical cyclones. Additionally, its steep slopes generate flash floods, particularly in small catchments. Moreover, the hydrology of this region remains poorly understood and understudied. Unfortunately, there is no...

To facilitate reproducible hydrological research and support model testing and evaluation, several datasets gathering hydroclimatic information on large catchment samples have been released in different regions of the world over the last years. Addor et al. (2017) proposed a large dataset of Catchment Attributes and Meteorology for Large-sample...

Haïti, pays caribéen, est extrêmement exposé et vulnérable face aux aléas hydro-climatiques. Or, aucune base de données hydro-climatiques exploitable et facilement accessible à la communauté scientifique n'existe. Les seules données existantes sont les 156 séries de pluies mensuelles (1905-2005) et les 70 séries de débits journaliers...

Forest hydrology studies carried out in France have focused mainly on the Mediterranean part of the country. Three experimental catchment groups exist and have been monitored over a long period. Some forested catchments (Draix catchment) underwent no change during the study period, while others experienced either clear cutting (Lozère...

Forest hydrology studies carried out in France have focused mainly on the Mediterranean part of the country. Three experimental catchments groups exist and have been monitored over a long period. Some forested catchment (Draix catchment) underwent no change during the study period, while others experienced either clear cutting (Lozère...

Forest hydrology studies carried out in France have focused mainly on the Mediterranean part of the country.Three experimental catchment groups exist and have been monitored over a long period. Some forested catchments (Draix catchment) underwent no change during the study period, while others experienced either clear cutting (Lozère catchment)...

Les recherches menées en France sur les conséquences de la forêt sur le régime des eaux en climat méditerranéen sont conduites essentiellement à partir de trois groupes de BVRE (Bassins Versants Représentatifs et Expérimentaux). Ces sites diffèrent par leurs conditions climatiques, lithologiques et pédologiques. Ils ont en commun de prendre en...

Over the last decade, large-sample approaches, i.e. based on large catchment sets, have become increasingly popular in hydrological studies. Efforts were made to assemble and disseminate national catchment datasets. This article aims to add a stone to the construction of a large international database of catchments by proposing the CAMELS-FR...

Forest hydrology studies carried out in France have focused mainly on the Mediterranean part of the country. Three experimental catchments groups exist and have been monitored over a long period. Some forested catchment (Draix catchment) underwent no change during the study period, while others experienced either clear cutting (Lozère...

Abstract. Over the last decade, large-sample approaches, i.e., based on large catchment sets, have become increasingly popular in hydrological studies. Efforts were made to assemble and disseminate national catchment datasets. This article aims to make a contribution to the construction of a large international database of catchments by...

Cet article présente une cartographie de l'écoulement des cours d'eau de Corse, constituée de deux débits caractéristiques : le débit moyen annuel (module), qui caractérise les écoulements moyens d'une rivière, et le débit mensuel minimal de fréquence quinquennale sèche (QMNA5), qui caractérise les basses eaux d'une rivière. Ces débits ont été...