PhD student in Meteorology and Climate, Earth Systems Doctoral Program (since March 2015)
MSc in Meteorology and climatology (UCM, 2014)
Scientific interests: Past climate, Climate change and Observational Meteorology

Email: jamelladocano@gmail.com

Linkedin: https://www.linkedin.com/in/javier-mellado-cano-56635a6b


PhD topic

Atmospheric circulation and Climate of the Euro-Atlantic sector since 1685 based on new directional flow indices.

Brief description

One way to study atmospheric circulation and its role in climate variability is using large scale circulation patterns such as the North Atlantic Oscillation (NAO) or the Blocking pattern, both extremely important to understand climate variability and climate extremes in Europe. Unfortunately, our knowledge of atmospheric variability before the mid-19th century strongly relies on scattered historical data over land and mainly climatic proxies, which suffer from a number of limitations. An alternative method of exploring past climatic variability without using proxies is through the systematic analysis of early instrumental data over land. Ships’ logbooks, which have been poorly exploited, contain well-dated sub-daily evidence on the weather that ships encountered along their route and are a key source of climatic information. In particular, wind direction information kept in logbooks was measured with a 32-point compass, similar to modern days.

 

 

The objective is to study the atmospheric variability over the Euro-Atlantic using daily marine observations over the English Chanel back to 1685. Using Royal Navy logbooks we will construct 4 monthly indices (one for each direction Northerly (NI), Easterly (EI), Southerly (SI) and Westerly (WI)). The indices indicate the persistence of the wind over this sector, and will be the longest observational record of atmospheric circulation to date, allowing the exploration of long-term (interannual-to-multidecadal) atmospheric variability and trends over the eastern Atlantic. We will evaluate their climatic impacts over Europe and will assess their capacity to explain climate variability in Europe.