Antónia Valente

Senior Researcher


Areas of Scientific activity

Management of surface meteorological observation stations (Lisboa/Geofísico)
Recovery of historical meteorological observations
Historical data as reanalyses (ERA-20C and 20CR) input and comparison purposes
Climate change in historical series, extreme events
Homogenization methods applied to historical series



Thorne PW, Allan RJ, Ashcroft L, Brohan P, Dunn RJH, Menne MJ, Pearce PR, Picas J, Willet KM, Benoy M, Bronnimann S, Canziani PO, Coll J, Crouthamel R, Compo GP, Cuppett D, Curley M, Duffy C, Gillespie I, Guijarro J, Jourdain S, Kent EC, Kobuta H, Legg TP, Li Q, Masumoto J, Murphy C, Rayner NA, Rennie JJ, Rustemeier E, Slivinski LC, Slonosky V, Squintu A, Tinz B, Valente MA, Walsh S, Wang XL, Westcott N, Wood K, Woodruff SD, Worley SJ (2018) Toward an Integrated Set of Surface Meteorological Observations for Climate Science and Applications. AMS, BAMS December 2017,

Buizza R, Brönniman S, Haimberger L, Laloyaux P, Martin MJ, Fuentes M, Alonso-Balmaseda M, Becker A, Blaschek M, Dahlgren P, de Boisseson E, Dee D, Doutriaux-Boucher M, Feng X, John VO, Haines K, Jourdain S, Kosaka Y, Lea D, Lemarié F, Mayer M, Messina P, Perruche C, Peylin P, Pullainen J, Rayner N, Rustemeier E, Schepers D, Saunders R, Schulz J, Sterin A, Stichelberger S, Storto A, Testut C-E, Valente M-A, Vidard A, Vuichard N, Weaver A, While J, Ziese M (2018) The EU-FP7 ERA-CLIM2 Project Contribution to Advancing Science and Production of Earth System Climate Reanalyses. AMS, BAMS May 2018,


Hersbach H, Brönnimann S, Haimberger L, Mayer M, Villiger L, Comeaux J, Simmons A, Dee D, Jourdain S, Peubey C, Poli Paul, Rayner N, Sterin AM, Stickler A, Valente MA, Worley SJ (2017) The potential value of early (1939–1967) upper-air data in atmospheric climate reanalysis. Q. J. R. Meteorol. Soc. 143: 1197–1210, April 2017,


Hernández A., Haim Kutiel, Trigo R. M., Valente M. A., Sigró J., Cropper T., and Santo F. E. (2016) New Azores archipelago daily precipitation dataset and its links with large-scale modes of climate variability. Int. J. Climatol. 36: 4439–4454 (2016) DOI: 10.1002/joc.4642


Cram TA, Compo GP, Yin X, Allan RJ, McColl C, Vose RS, Whitaker JS, Matsui N, Ashcroft L, Auchmann R, Bessemoulin P, Brandsma T, Brohan P, Brunet M, Comeaux J, Crouthamel R, Gleason-Jr BE, Groisman PY, Hersbach H, Jones PD, Jónsson T, Jourdain S, Kelly G, Knapp KR, Kruger A, Kubota H, Lentini G, Lorrey A, Lott N, Lubker SJ, Luterbacher J, Marshall GJ, Maugeri M, Mock CJ, Mok HY, Nord Ø, Rodwell MJ, Ross TF, Schuster D, Srnec L, Valente MA, Vizi Z, Wang XL, Westcott N, Woollen JS, Worley SJ (2015) The International Surface Pressure Databank version 2. Geosci. Data J.2:31–46 (2015),

Cropper T.E., Hanna E., Valente M. A. (2015) A Daily Azores-Iceland North Atlantic Oscillation Index back to 1850. Geosci. Data J. (2015), doi: 10.1002/gdj3.23


Bližňák V, Valente MA, Bethke J (2014) Homogenization of time series from Portugal and its former colonies for the period from the late 19th to the early 21st century. NTERNATIONAL JOURNAL OF CLIMATOLOGYInt. J. Climatol. 35: 2400–2418 (2015),

Stickler A, Brönnimann S, Bethke J, Valente MA, Sterin A, Jourdain S, Rocaute E, Vasquez MV, Reyes DA, Allan R, Dee D (2014) ERA-CLIM: Historical Surface and Upper-Air Data for Future Reanalyses. AMS, BAMS September 2014,

Stickler A., Brönnimann S., Jourdain S., Roucaute E., Sterin A., Nikolaev D., Valente M. A., Wartenburger R., Hersbach H., Ramella-Pralungo L., Dee D. (2014) Description of the ERA - CLIM Historical Upper-Air data. Earth Syst. Sci. Data, 6, 29-48, doi:10.5194/essd-6-29-2014

Trigo R.M., Varino F., Ramos A.M., Valente M.A., Zêzere J.L., Vaquero J.M., Gouveia C.M., Russo A. (2014) The record precipitation and flood event in Iberia in December 1876: description and synoptic analysis. Frontiers Environmental Sciences, 2:3, DOI: 10.3389/feart.2014.00003


Morozova A. L., Valente M. A. (2012) Homogenization of Portuguese long-term temperature data series: Lisbon, Coimbra and Porto. Earth Syst. Sci. Data Discuss., 5, 521 - 584, doi:10.5194/essdd-5-521-2012


Gallego M.C., Trigo R.M., Vaquero J.M., Brunet M., García J.A., Sigró J., and Valente M.A. (2011) Trends in frequency indices of daily precipitation over the Iberian Peninsula during the last century. Journal of Geophysical Research - Atmospheres, 116, D02109, doi:10.1029/2010JD014255


Fragoso M., Trigo R.M., Zêzere L., Valente M.A. (2010) The exceptional rainfall episode registered in Lisbon in 18 February 2008. Weather, 65, 31-35


Damião M.C.M., Cavalcanti I.F.A., Trigo R.M., DaCamara C.C., Aragão M.R.S. (2009) Episódios de bloqueios no hemisfério Sul: comparação entre reanalises do NCEP/NCAR e modelo HadCM3. Revista Brasileira de Meteorologia, 24, 3, 262-275


Valente M. A., Trigo R. , Barros M., Nunes L. F., Alves E. I., Pinhal E. A., Coelho F. E. S., Mendes M., Miranda J. M. (2008) Early stages of the recovery of Portuguese historical meteorological data In MEDARE - Proceedings of the International Workshop on Rescue and Digitization of Climate Records in the Mediterranean Basin (M. Brunet e Franz G. Kuglitsch editores). . World Meteorological Organisation, WCDMP no. 67, WMO-TD No. 1432, June 2008, p. 95-102.

Trigo R.M., Valente M.A., Trigo I.F., Miranda M., Ramos A.M., Paredes D., García-Herrera R. (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, 212-234, doi: 10.1196/annals.1446.014

Vaquero J.M., Valente M.A., Trigo R.M., Ribeiro P., Gallego M.C. (2008) The 1870 Space Weather Event from South-west Europe. Journal of Geophysical Reseach - Space Physics , 113, A08230


Díaz J, García-Herrera R., Trigo R.M., Linares C., Valente M.A., Hernadéz E. (2006) The impact of summer 2003 heat wave in Iberia: how should we measure it?. International Journal of Biometeorology, 50, 159-166, DOI: 10.1007/s00484-005-0005-8


Trigo R.M., García-Herrera R., Díaz J., Trigo I.F., Valente M.A. (2005) How exceptional was the early August 2003 heatwave in France?. Geophysical Research Letters, 32, L10701, doi:10.1029/2005GL022410

2002 - 2004

Santos, F.D., Valente M.A., Miranda P.M., Aguiar A., Azevedo E.B., Tomé A.R., Coelho F. (2004) Climate change scenarios in the Azores and Madeira Islands. World Resource Review, 16, 4, 473-491