Alexandre Miguel Urbano da Fonseca Ramos.
Endereço de acesso a este CV: http://www.degois.pt/visualizador/curriculum.jsp?key=9625259188035670

Nome completo Full name	Alexandre Miguel Urbano da Fonseca Ramos
Nome em citações bibliográficas Quoting name	Ramos, A.M.
Categoria profissional Position	Investigador Auxiliar
Domínio científico de atuação Scientific domain	Ciências Naturais-Ciências da Terra e do Ambiente. Ciências Exactas-Física.

Endereço profissional Professional address

Instituto Geofísico do Infante D. Luiz Faculdade de Ciências, Universidade de Lisboa Campo Grande, Edf. C8, Piso 3, Sala 8.3.1 1749--016 Lisboa Portugal Telefone: (+351)217500863 Correio electrónico: amramos@fc.ul.pt Homepage: http://idlcc.fc.ul.pt/

Sexo Gender

Masculino»Male

2008-2012	Doutoramento Phd
Ciencias del Clima: Meteorología, Oceanografía Física y Cambio Climático (4 anos » years) . Universidade de Vigo, Espanha.

2010	Mestrado Master degree
Ciencias del Clima: Meteorología, Oceanografía Física y Cambio Climático (1 anos » years) . Universidade de Vigo, Espanha. Com o tipo » With the type: Equivalência » Equivalence.

2005	Licenciatura Licentiate degree
Ciências Geofísicas (5 anos » years) . Universidade de Lisboa, Portugal.

Instituto Geofísico do Infante D. Luiz

Ago/2012-Actual

Investigador Auxiliar

Universidade de Vigo

Fev/2009-Jun/2012

Investigador Auxiliar

Universidade de Vigo

Fev/2008-Jan/2009

Investigador Auxiliar

Instituto Geofísico do Infante D. Luiz

Ago/2006-Dez/2007

Investigador Auxiliar

Instituto Geofísico do Infante D. Luiz

Jan/2006-Jul/2006

Investigador Auxiliar

Instituto Geofísico do Infante D. Luiz

Nov/2006-Dez/2006

Estágios realizados»Traineeships:    - Receive formation about stochastic models and prediction of temporal time series, in particular ARIMA Models - Supervision of R. Garcia-Herrera

Universidade de Vigo

Fev/2010-Abr/2010
Atividade realizada»Activity: Short Visit to Swiss Federal Institute of Technology Zurich - Supervision of H. Wernli

Outro Tipo de Participação Other kind of participation

2013- Quantificação e Evolução das Secas na Península Ibérica: passado, presente e futuro - QSECA

Referência do projeto»Project reference: PTDC/AAG-GLO/4155/2012.

2012- Mid-Latitude North Atlantic Extreme Storms Variability: Diagnosis, Modelling Dynamical Processes and Related Impacts on Iberia (STORMEx).

Referência do projeto»Project reference: PTDC/AAC-CLI/121339/2010.

2006-2009 Impactos na Saúde em Portugal de Eventos Extremos: Passado Presente e Futuro

Referência do projeto»Project reference: Gulbenkian Foundation 1568. Financiador(es)»Funding: Fundação Calouste Gulbenkian.

2006-2009 Estudio del clima en Galicia a través de patrones sinópticos o "Weather Types": Implicaciones meteorológicas, oceanográficas, hidrológicas y ambientales

Referência do projeto»Project reference: PGIDIT06PXIB383288PR.

2002-2006 VAST – Variability of Atlantic Storms and their Impact on Land Climate

Referência do projeto»Project reference: POCTI/CTA/46573/2002. Financiador(es)»Funding: Fundação para a Ciência e a Tecnologia.

Compreende Understandig	Português (Bem), Espanhol (Bem), Inglês (Bem), Francês (Pouco).
Fala Speaking	Português (Bem), Espanhol (Bem), Inglês (Bem), Francês (Pouco).
Lê Reading	Português (Bem), Espanhol (Bem), Inglês (Bem), Francês (Pouco).
Escreve Writing	Português (Bem), Espanhol (Bem), Inglês (Bem), Francês (Pouco).

2011	Young Scientist's Travel Award for Europeans, European Geosciences Union.

Capítulos de livros publicados Published book chapters

1.	Liberato, MLR; Ramos, A.M.; Trigo, R.M.; Trigo, I.F.; Duran-Quesada, A. M; Nieto, R; Gimeno, L. 2013. Moisture Sources and Large-Scale Dynamics Associated With a Flash Flood Event.  In Lagrangian Modeling of the Atmosphere, 00 - 00. . USA: AGU.

Artigos em revistas com arbitragem científica Papers in periodics with scientific refereeing

1.	Lima, M. I. P; Santo, Fátima E; Ramos, Alexandre M; Trigo, Ricardo M. 2014. "Trends and correlations in annual extreme precipitation indices for mainland Portugal, 1941 2007", Theoretical and Applied Climatology, 0: 0 - 0.

2.	Espírito Santo, F; De Lima, M; Ramos, A.M.; Trigo, R.M.. 2013. "Trends in seasonal surface air temperature in mainland Portugal, since 1941", International Journal of Climatology, 0: 00 - 00.

3.	Cortesi, N.; Trigo, R.M.; Gonzalez-Hidalgo, J.C.; Ramos, A.M.. 2013. "Modelling monthly precipitation with circulation weather types for a dense network of stations over Iberia", Hydrology and Earth System Sciences 17, 2: 665 - 678.

4.	De Lima, M; Santo, F.E.; Ramos, A.M.; de Lima, J. 2013. "Recent changes in daily precipitation and surface air temperature extremes in mainland Portugal, in the period 1941-2007", Atmospheric Research, 127: 195 - 209.

5.	Ramos, A.M.; Pires, A.C.; Sousa, P.M.; Trigo, R.M.. 2013. "The use of circulation weather types to predict upwelling activity along the western Iberian Peninsula coast", Continental Shelf Research, 69: 38 - 51.

6.	Espírito Santo, F; Ramos, A.M.; de Lima, M; Trigo, R.M.. 2013. "Seasonal changes in daily precipitation extremes in mainland Portugal from 1941 to 2007", Regional Environmental Change, 0: 1 - 24.

7.	Achberger, C.; Ackerman, S.A.; Albanil, A.; Alexander, P.; Alfaro, E.J.; Allan, R.; Alves, L.M.; Amador, J.A.; Ambenje, P.; Andrianjafinirina, S.; Antonov, J.; Aravequia, J.A.; Arendt, A.; Arévalo, J.; Arndt, D.S.; Ashik, I.; Atheru, Z.; Banzon, V.; Baringer, M.O.; Barreira, S.; Barriopedro, D.E.; Beard, G.; Becker, A.; Behrenfeld, M.J.; Bell, G.D.; Benedetti, A.; Bernhard, G.; Berrisford, P.; Berry, D.I.; Bhatt, U.; Bidegain, M.; Bindoff, N.; Bissolli, P.; Blake, E.S.; Blunden, J.; Booneeady, R.; Bosilovich, M.; Box, J.E.; Boyer, T.; Braathen, G.O.; al., et. 2013. "State of the climate in 2012", Bulletin of the American Meteorological Society 94, 8: 00 - 00.

8.	Lorenzo, M. N; Taboada, J. J; Lorenzo, J. F; Ramos, A. M. 2012. "Influence of climate on grape production and wine quality in the Rías Baixas, north-western Spain", Regional Environmental Change 13, 4: 887 - 896.

9.	Ramos, AM; Trigo, RM; Santo, FE. 2011. "Evolution of extreme temperatures over Portugal: recent changes and future scenarios", Climate Research 48, 2: 177 - 192.

10.	Gómez-Gesteira, M; Gimeno, L; deCastro, M; Lorenzo, MN; Alvarez, I; Nieto, R; Taboada, JJ; Crespo, AJC; Ramos, AM; Iglesias, I; Gómez-Gesteira, JL; Santo, FE; Barriopedro, D; Trigo, IF. 2011. "The state of climate in NW Iberia", Climate Research 48, 2: 109 - 144.

11.	Lorenzo, María N; Ramos, Alexandre M; Taboada, Juan J; Gimeno, Luis; Schumann, Guy J. 2011. "Changes in Present and Future Circulation Types Frequency in Northwest Iberian Peninsula", PLoS ONE 6, 1: 16201 - 16201.

12.	deCastro, M; Gomez-Gesteira, M; Ramos, AM; ¿?lvarez, I; deCastro, P. 2011. "Effects of heat waves on human mortality, Galicia, Spain", Climate Research 48, 2: 333 - 341.

13.	Ramos, Alexandre M; Ramos, Ricardo; Sousa, Pedro; Trigo, Ricardo M; Janeira, Marta; Prior, Victor. 2011. "Cloud to ground lightning activity over Portugal and its association with circulation weather types", Atmospheric Research 101, 1-2: 84 - 101.

14.	Gouveia, C; Liberato, MLR; DaCamara, CC; Trigo, RM; Ramos, AM. 2011. "Modelling past and future wine production in the Portuguese Douro Valley", Climate Research 48, 2: 349 - 362.

15.	Ramos, A.M.; Trigo, R.M.; Santo, F.E.. 2011. "Evolution of extreme temperatures over Portugal: Recent changes and future scenarios", Climate Research 48, 2-3: 177 - 192.

16.	Ramos, A. M; Lorenzo, M. N; Gimeno, L.. 2010. "Compatibility between modes of low-frequency variability and circulation types: A case study of the northwest Iberian Peninsula", Journal of Geophysical Research 115, D2: 1 - 15.

17.	Trigo, Ricardo M; Ramos, Alexandre M; Nogueira, Paulo J; Santos, Filipe D; Garcia-Herrera, Ricardo; Gouveia, Célia; Santo, Fátima E. 2009. "Evaluating the impact of extreme temperature based indices in the 2003 heatwave excessive mortality in Portugal", Environmental Science & Policy 12, 7: 844 - 854.

18.	Andrade, C.; Trigo, R.M.; Freitas, M.C.; Gallego, M.C.; Borges, P.; Ramos, A.M.. 2008. "Comparing historic records of storm frequency and the North Atlantic Oscillation (NAO) chronology for the Azores region", The Holocene 18, 5: 745 - 754.

19.	Trigo, Ricardo M; Valente, Maria A; Trigo, Isabel F; Miranda, Pedro M. A; Ramos, Alexandre M; Paredes, Daniel; García-Herrera, Ricardo. 2008. "The Impact of North Atlantic Wind and Cyclone Trends on European Precipitation and Significant Wave Height in the Atlantic", Annals of the New York Academy of Sciences 1146, 1: 212 - 234.

20.	Trigo, Ricardo M; García-Herrera, Ricardo; Paredes, Daniel; Ramos, AM. 2007. "Iberia, in State of the Climate in 2006", State of the Climate in 2006, Vol. 88: 106 - 107.

Artigos em revistas sem arbitragem científica Papers in periodics without scientific refereeing

1.	Ramos, Alexandre M; Gimeno, L.; Lorenzo, MN. 2010. "Coherencia entre los modos de variabilidad del Atlántico Norte y los tipos de circulación del NW de la Península Ibérica", Avances en Ciencias de la Tierra 1, 1: 124 - 146.

Apresentação oral de trabalho Oral work presentation

1.	Ramos, A.M.; Pires, A.C.; Sousa, Pedro; Trigo, R.M.. Upwelling index prediction using Weather Types Classification,7º Simpósio sobre a Margem Ibérica Atlântica,2013 (Comunicação).

2.	Ramos, A.M.. Trends and variability of Iberian Circulation Weather Types ,Atmospheric Circulation Reconstructions over the Earth workshop,2013 (Comunicação).

3.	Ramos, A.M.; Liberato, MLR; Trigo, R.M.; Trigo, I.F.; Duran-Quesada, A. M; Nieto, R; Gimeno, L. Revisiting the dynamics of the flash flood event of 18-19 November 1983 in Lisbon,8º Simpósio de Meteorologia e Geofísica da APMG/14º Encontro Luso-Espanhol de Meteorologia,2013 (Comunicação).

4.	Ramos, A.M.; Liberato, MLR; Trigo, R.M.. Atmospheric Rivers in Iberia Peninsula: the role of cyclones and moisture transport,RACEWIN Workshop on European storms,2013 (Poster).

5.	Ramos, A.M.; Lorenzo, MN; Taboada, J. J; Lorenzo, J. F. Influence of climate variability on grape production and wine quality in the Rias Baixas, north-western Spain,EGU 2013,2013 (Poster).

6.	Ramos, A.M.; Trigo, R.M.; Liberato, MLR. The use of normalized climatological anomalies to rank precipitation events in the Iberian Peninsula,EGU 2013,2013 (Comunicação).

7.	Russo, A.; Ramos, A.M.; Trigo, R.M.. Forest fires and lightning activity during the outstanding 2003 and 2005 fire seasons,EGU 2013,2013 (Poster).

8.	Ramos, A.M.; Pires, A.C.; Sousa, Pedro; Trigo, R.M.. The use of circulation weather types to predict upwelling activity along the Western Iberian Peninsula coast,EGU 2014,2013 (Comunicação).

9.	Liberato, MLR; Ramos, A.M.; Trigo, R.M.; Trigo, I.F.; Duran-Quesada, A. M; Nieto, R; Gimeno, L. Moisture Sources and Large-Scale Dynamics Associated with a Flash Flood Event in Portugal,EGU 2013,2013 (Poster).

10.	Espírito Santo, F; Ramos, A.M.; De Lima, M; Trigo, R.M.. Seasonal precipitation extreme indices in mainland Portugal: trends and variability in the period 1941-2007,EGU 2013,2013 (Poster).

11.	Ramos, A.M.; Trigo, R.M.; Espírito Santo, F; De Lima, M. Seasonal changes in daily precipitation extremes in mainland Portugal from 1941 to 2007,MedClivar Final Conference,2012 (Poster).

12.	de Lima, M; Espírito Santo, F; Ramos, A.M.. Seasonal trends in precipitation and surface air temperature extremes in mainland Portugal, 1941-2007,EGU 2012,2012 (Poster).

13.	Ramos, A.M.; Gimeno, L.; Lorenzo, MN; Sprenger, M.; Wernli, H.; Duran-Quesada, A. M. On the relationship between surface variables and circulation type classification based upon lagrangian air trajectories,EGU 2011,2011 (Poster).

14.	Ramos, A.M.; Ramos, Ricardo; Sousa, Pedro; Trigo, RM. Cloud to ground lightning activity climatology over Portugal and its association with Circulation Weather Types,EGU 2011,2011 (Poster).

15.	Ramos, A.M.; Lorenzo, MN; Taboada, JJ; Gimeno, L.. Changes in Present and Future Circulation Types Frequency in NW Iberian Peninsula,MedCLIVAR Final Conference - Mediterranean Climate: From Past to Future,2011 (Poster).

16.	Duran-Quesada, A. M; Ramos, A.M.; Gimeno, L.; García-Feal, O.. Role of the Caribbean Low Level Jet in the transport of moisture in the Intra Americas Sea region: A Lagrangian study based on backward trajectories,AGU Chapman Conference on Lagrangian Modeling of the Atmosphere,2011 (Poster).

17.	Ramos, A.M.; Sprenger, M.; Wernli, H.; Duran-Quesada, A. M; Lorenzo, MN; Gimeno, L.. A new circulation type classification based upon Lagrangian air trajectories,AGU Chapman Conference on Lagrangian Modeling of the Atmosphere,2011 (Poster).

18.	Ramos, A.M.; Sprenger, M.; Gimeno, L.; Wernli, H.; Lorenzo, MN; Duran-Quesada, A. M. A new circulation type classification based upon clustering of lagrangian air trajectories,EGU 2011,2011 (Comunicação).

19.	Ramos, A.M.; Trigo, RM; Santo, FE. Evolution of extreme temperatures over Portugal: recent changes and future scenarios,MedCLIVAR Final Conference,2011 (Comunicação).

20.	Ramos, A.M.; Sousa, Pedro; Ramos, Ricardo; Trigo, RM; Janeira, Marta; Prior, Victor. Descargas eléctricas sobre Portugal associadas a padrões de circulação atmosférico,12º Encontro Luso-Espanhol de Meteorologia,2011 (Comunicação).

21.	Santo, FE; Lima, Isabel; Ramos, A.M.. Trends in daily precipitation extremes in Mainland Portugal, 1941-2007,EGU 2011,2011 (Poster).

22.	Ramos, A.M.. Circulation Weather types; methods and applications,Evolution of North Atlantic Climate; the role of Blocking and Stormtracks in the Past Present and Future climate of Southern Europe,Lisboa,2011 (Comunicação).

23.	Ramos, A.M.; Lorenzo, MN; Gimeno, L.. Relationship between regional climate modes and circulation regimes in NW Iberia Peninsula – Past climate and Future scenarios.,COST Action 733 Training School - Classifications in atmospheric sciences and their applications,2010 (Poster).

24.	Ramos, A.M.; Trigo, RM; Santo, FE. Evolution of extreme temperatures over western Iberia; reporting on recent changes and future scenarios,EGU 2010,2010 (Poster).

25.	Duran-Quesada, A. M; Reboita, M.; Ramos, A.M.; Rocha, R.; Gimeno, L.; Nieto, R.. Moisture Variations during the life cycle of cyclones in the east coast of South America,EGU 2010,2010 (Poster).

26.	Ramos, A.M.; Lorenzo, MN; Taboada, JJ; Gimeno, L.. Changes in circulation type frequencies for present and future climates – the case of Northwestern Iberian Peninsula,EGU 2010,2010 (Poster).

27.	Ramos, A.M.; Sprenger, M.; Wernli, H.; Gimeno, L.; Lorenzo, MN; Duran-Quesada, A. M. A Lagrangian circulation type classification based upon clustering,EMS 2010,2010 (Poster).

28.	Ramos, A.M.; Trigo, RM; Nogueira, Paulo J; Santos, Filipe D; García-Herrera, Ricardo; Gouveia, C; Santo, FE. Modeling regional and gender impacts of the 2003 summer heatwave in excessive mortality in Portugal,EGU 2010,2010 (Comunicação).

29.	Lorenzo, MN; Gómez-Gesteira, M; Taboada, JJ; deCastro, M; Ramos, A.M.. Evolution in Precipitation Patterns in the Euroregion Galicia-North Portugal,10th International Precipitation Conference,2010 (Comunicação).

30.	Trigo, RM; Trigo, IF; Ramos, A.M.; Paredes, Daniel; García-Herrera, Ricardo; Liberato, MLR; Valente, Maria A. North Atlantic cyclones; trends, impacts and links to large-scale variability,EGU 2009,2009 (Poster).

31.	Taboada, JJ; Cabrejo, A.; Guarin, D.; Ramos, A.M.. Tendencies of extreme values on rainfall and temperature and its relationship with teleconnection patterns.,EGU 2009,2009 (Poster).

32.	Ramos, A.M.; Trigo, RM; Lorenzo, MN; Gallego, M.C.; Vaquero, J.M.; Valente, Maria A; Gimeno, L.. An objective daily Weather Type classification for Iberia since 1850; patterns, trends, variability and impact in precipitation,EGU 2009,2009 (Poster).

33.	Ramos, A.M.; Lorenzo, MN; Gimeno, L.; Taboada, JJ. Nonstationary relationship between atmospheric teleconnection patterns and Weather types in NW Iberian Peninsula,EGU 2009,2009 (Poster).

34.	Reboita, M.; Ambrizzi, T.; Rocha, R.; Ramos, A.M.. Southern Annular Mode Impacts in South America.,EGU 2009,2009 (Poster).

35.	Ramos, A.M.; Lorenzo, MN; Gimeno, L.; Taboada, JJ. Are the relationship between atmospheric teleconnection patterns and local circulation regimes in NW Iberian Peninsula stationary?,4th MedCLIVAR workshop,2009 (Poster).

36.	Ramos, A.M.. Alterações climáticas em Portugal no século XX e século XXI,1ª Palestra Meteoiberia.com “Meteorologia para todos”,2009 (Conferência ou palestra).

37.	Ramos, A.M.; Lorenzo, MN; Gimeno, L.; Nieto, R; Anel, J.A.. The use of normalized climatological anomalies to rank synoptic-scale events and their relation to Weather Types,9th Annual Meeting of the EMS,2009 (Comunicação).

38.	Ramos, A.M.; Lorenzo, M. N; Gimeno, L.; Taboada, JJ; Trigo, RM. Trends in weather type frequencies centred in Northwestern Iberian Peninsula for present and changing climates,EGU 2008,2008 (Poster).

39.	Ramos, A.M.; Trigo, RM; Valente, Maria A; Santo, FE; Santos, Filipe D. Extreme temperature events in Portugal: recent trenes and future scenarios,EGU 2008,2008 (Poster).

40.	Trigo, RM; Pereira, M. J; DaCamara, CC; Pereira, J.M.C.; Ramos, A.M.. The role of meteorological and climate anomalies in recent summer time fire events in Portugal,EGU 2008,2008 (Poster).

41.	Ramos, A.M.; Lorenzo, MN; Taboada, JJ; Gimeno, L.. Nonstationary relationship between atmospheric teleconnection patterns and local circulation regimes in NW Iberian Peninsula,Conference on teleconnections in the Atmosphere and Oceans,2008 (Poster).

42.	Ramos, A.M.. Climate Extremes and Heat Waves,2nd Conferences’ Cycle (organized by Amospheric and Oceanic Physics Group – Universidad de Vigo),2008 (Conferência ou palestra).

43.	Ramos, A.M.. Different Methods to Identify Weather Types,2nd Conferences’ Cycle (organized by Amospheric and Oceanic Physics Group – Universidad de Vigo),2008 (Conferência ou palestra).

44.	Ramos, A.M.; Trigo, RM; Valente, Maria A; Santos, Filipe D; Santo, FE. Eventos extremos de temperatura em Portugal: tendências e cenários futuros,6ª Assembleia Luso Espanhola de Geodesia e Geofísica,2008 (Comunicação).

45.	Ramos, A.M.; Lorenzo, MN; Gimeno, L.. Compatibilidade entre uma classificação regional de Weather Types e modos climáticos regionais derivados da análise de EOF: O caso do Sul do Brasil,Seminario sobre Precipitación y Fenómenos Meteorológicos asociados en Iberoamérica,2008 (Seminário).

46.	Ramos, A.M.; Lorenzo, MN; Gimeno, L.. Compatibility between regional WT classification and regional climate modes derived from EOF analysis: The case of NW Iberian,ADVANCES IN WEATHER AND CIRCULATION TYPE CLASSIFICATIONS & APPLICATIONS,2008 (Comunicação).

47.	Ramos, A.M.; Trigo, RM; Valente, Maria A; Santos, Filipe D; Santo, Fátima E. Changes in frequency of extreme events over Portugal based on two different climate change scenarios,International conference on "Climate Change Impacts on Tourism,2007 (Poster).

48.	Trigo, RM; Trigo, IF; García-Herrera, Ricardo; Paredes, Daniel; Ramos, A.M.; Valente, Maria A. North Atlantic wind and cyclone trends and their impact in the European precipitation and Atlantic significant wave height,7th EMS Annual Meeting / 8th ECAM,2007 (Poster).

49.	Ramos, A.M.; Trigo, RM; Santo, FE. Synoptic Patterns Leading to Extreme Temperatures over Portugal,2nd ESF MedCLIVAR workshop,2007 (Poster).

50.	Ramos, A.M.; Trigo, RM; Santo, FE; Santos, Filipe D. The evolution of temperature extreme events over Portugal; reporting on recent heatwaves,7th EMS Annual Meeting / 8th ECAM,2007 (Comunicação).

Participação no júri de Graus Académicos Academic Degrees jury participation

Participação no júri de Graus Académicos Academic Degrees jury participation

Doutoramento Phd

1.	Ramos, A.M.. Differences in warming trends between coastal upwelling areas and the adjacent ocean, 2013.

Mestrado Master degree

1.	Ramos, A.M.. Statistical downscaling of air temperature in the Douro Valley for agronomic applications, 2013.

Bacharelato/Licenciatura Degree of licentiate

1.	Ramos, A.M.. Characterizing the secondary peak of Iberian fires in March, 2013.

Produção científica Scientific production

Produção técnica Technical production

Dados complementares data

Total

Produção científica Scientific production

22

Livros e capítulos Books and book chapters

1

Capítulos de livros publicados Published book chapters

1

Artigos científicos em revistas Papers in periodics

21

Com arbitragem científica With scientific refereeing

20

Sem arbitragem científica Without scientific refereeing

1

Total

Produção técnica Technical production

50

Outros tipos de produção técnica Other technical production

50

Total

Dados complementares (Additional data)

3

Participação no Júri de Graus Académicos Academic Degrees jury participation

3

	Isabel Iglesias Fernández
	João Luís Mendes Pedroso de Lima
	Margarida da Conceição Rasteiro Magano Lopes Rodrigues Liberato

Margarida da Conceição Rasteiro Magano Lopes Rodrigues Liberato