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Margarida L. R. Liberato   Dr.  University Educator/Researcher 
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Margarida L. R. Liberato published an article in November 2018.
Top co-authors
Alexandre Ramos

56 shared publications

Instituto Dom Luiz, Universidade de Lisboa, 1749-016 Lisboa, Portugal

Riccardo Hénin

2 shared publications

Instituto Dom Luiz (IDL), Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal

Célia M. Gouveia

1 shared publications

Instituto Dom Luiz (IDL), Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal

41
Publications
52
Reads
11
Downloads
329
Citations
Publication Record
Distribution of Articles published per year 
(2007 - 2018)
Total number of journals
published in
 
30
 
Publications See all
Article 0 Reads 0 Citations Assessing the Use of Satellite-Based Estimates and High-Resolution Precipitation Datasets for the Study of Extreme Preci... Riccardo Hénin, Margarida L. R. Liberato, Alexandre M. Ramos... Published: 19 November 2018
Water, doi: 10.3390/w10111688
DOI See at publisher website ABS Show/hide abstract
An assessment of daily accumulated precipitation during extreme precipitation events (EPEs) occurring over the period 2000–2008 in the Iberian Peninsula (IP) is presented. Different sources for precipitation data, namely ERA-Interim and ERA5 reanalysis by the European Centre for Medium-Range Weather Forecast (ECMWF) and Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis (TMPA), both in near-real-time and post-real-time releases, are compared with the best ground-based high-resolution (0.2° × 0.2°) gridded precipitation dataset available for the IP (IB02). In this study, accuracy metrics are analysed for different quartiles of daily precipitation amounts, and additional insights are provided for a subset of EPEs extracted from an objective ranking of extreme precipitation during the extended winter period (October to March) over the IP. Results show that both reanalysis and multi-satellite datasets overestimate (underestimate) daily precipitation sums for the least (most) extreme events over the IP. In addition, it is shown that the TRMM TMPA precipitation estimates from the near-real-time product may be considered for EPEs assessment over these latitudes. Finally, it is found that the new ERA5 reanalysis accounts for large improvements over ERA-Interim and it also outperforms the satellite-based datasets.
Article 1 Read 1 Citation Assigning precipitation to mid-latitudes fronts on sub-daily scales in the North Atlantic and European sector: Climatolo... Riccardo Hénin, Alexandre M. Ramos, Sebastian Schemm, Célia ... Published: 04 September 2018
International Journal of Climatology, doi: 10.1002/joc.5808
DOI See at publisher website
Article 0 Reads 0 Citations Impacts of Atmospheric Rivers in Extreme Precipitation on the European Macaronesian Islands Alexandre M. Ramos, Ricardo M. Trigo, Ricardo Tomé, Margarid... Published: 20 August 2018
Atmosphere, doi: 10.3390/atmos9080325
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The European Macaronesia Archipelagos (Azores, Madeira and Canary Islands) are struck frequently by extreme precipitation events. Here we present a comprehensive assessment on the relationship between atmospheric rivers and extreme precipitation events in these three Atlantic Archipelagos. The relationship between the daily precipitation from the various weather stations located in the different Macaronesia islands and the occurrence of atmospheric rivers (obtained from four different reanalyses datasets) are analysed. It is shown that the atmospheric rivers’ influence over extreme precipitation (above the 90th percentile) is higher in the Azores islands when compared to Madeira or Canary Islands. In Azores, for the most extreme precipitation days, the presence of atmospheric rivers is particularly significant (up to 50%), while for Madeira, the importance of the atmospheric rivers is reduced (between 30% and 40%). For the Canary Islands, the occurrence of atmospheric rivers on extreme precipitation is even lower.
Article 4 Reads 2 Citations The concurrence of atmospheric rivers and explosive cyclogenesis in the North Atlantic and North Pacific basins Jorge Eiras-Barca, Alexandre M. Ramos, Joaquim G. Pinto, Ric... Published: 22 January 2018
Earth System Dynamics, doi: 10.5194/esd-9-91-2018
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The explosive cyclogenesis of extratropical cyclones and the occurrence of atmospheric rivers are characteristic features of a baroclinic atmosphere, and are both closely related to extreme hydrometeorological events in the mid-latitudes, particularly on coastal areas on the western side of the continents. The potential role of atmospheric rivers in the explosive cyclone deepening has been previously analysed for selected case studies, but a general assessment from the climatological perspective is still missing. Using ERA-Interim reanalysis data for 1979–2011, we analyse the concurrence of atmospheric rivers and explosive cyclogenesis over the North Atlantic and North Pacific basins for the extended winter months (ONDJFM). Atmospheric rivers are identified for almost 80% of explosive deepening cyclones. For non-explosive cyclones, atmospheric rivers are found only in roughly 40% of the cases. The analysis of the time evolution of the high values of water vapour flux associated with the atmospheric river during the cyclone development phase leads us to hypothesize that the identified relationship is the fingerprint of a mechanism that raises the odds of an explosive cyclogenesis occurrence and not merely a statistical relationship. These new insights on the relationship between explosive cyclones and atmospheric rivers may be helpful to a better understanding of the associated high-impact weather events.
Article 0 Reads 0 Citations Characteristics of different convective parameterization schemes on the simulation of intensity and track of severe extr... P.K. Pradhan, Margarida L.R. Liberato, Juan A. Ferreira, S. ... Published: 01 January 2018
Atmospheric Research, doi: 10.1016/j.atmosres.2017.09.007
DOI See at publisher website
CONFERENCE-ARTICLE 24 Reads 1 Citation <strong>Evaluating extreme precipitation events on the Iberian Peninsula using TRMM satellite data</strong> Margarida Liberato, Riccardo Hénin, Alexandre Ramos, Célia G... Published: 10 November 2017
First International Electronic Conference on the Hydrological Cycle, doi: 10.3390/CHyCle-2017-04880
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An assessment of extreme precipitation events (EPEs) is performed using the high-resolution (0.2°) gridded daily precipitation database available for the IP, the accumulated precipitation from ERA-Interim reanalysis by EMCWF at 6-hour intervals, and the Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis (TMPA) dataset, based on multisatellite estimates of precipitation and gauges measurements, for the common period since 1998. This study presents an analysis and validation of the extreme precipitation characteristics over IP, using both satellite and ground observations. Results show that there is a good general agreement between total precipitation analysis from observational gridded and TRMM datasets, both temporal and spatially, although TRMM TMPA results are underestimated when compared to observations and ERA Interim data.

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