Category Archives: Circulation

El Niño: a historical exploration and 2014 outlook

‘El Niño’ – a Spanish phrase describing a global climate phenomenon. How did this phrase, which translates to ‘the child’ or ‘the boy’, come to define the ever changing tropical Pacific temperatures, winds and rainfall? I’ll present a short history … Continue reading

Posted in Air, Circulation, Climate, Ocean, Tropics | Tagged , , , , , | Leave a comment

What can paleoclimate archives tell us about the timing of events during rapid climate shifts?

Our ability to predict future climate changes relies heavily on the goodness of physical climate models to capture short-term, regional to local expressions of atmospheric circulation dynamics. This diagnostic ability is aided by knowledge on paleoclimate scenarios. Indeed, we can … Continue reading

Posted in Air, Circulation, Climate, Ocean, Past

Hydrology and hydrological model

Quite often people ask me about my field of study in parties or activity groups out of geo department. When I answer: “hydrology”, there is a large chance that a big question mark shows on their face with a “not … Continue reading

Posted in Circulation, Climate, Forecasting, KlimaSnakk, Learning, Modelling, Precipitation, Present | Tagged , , , , , , , , , | 1 Comment

A History of Climate Models

Many PhD researchers use climate models with little thought of how they were developed. Often there just isn’t time in modern schedules to investigate their history. How these models evolved through the ages is pretty interesting and involves battling mathematicians … Continue reading

Posted in Circulation, Climate, Forecasting, Future, Learning, Modelling, Ocean, Past, Present | Tagged , , , , , , , , , | 5 Comments

Climate pollution in the near term

A lot of emphasis when it comes to climate change is placed on reducing carbon dioxide emissions, to prevent future global mean warming.  CO2 stays in the atmosphere for a very long time though, and any emission reductions will take … Continue reading

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What Is A Sudden Stratospheric Warming And Why Should We Care?

In recent years the stratosphere has become a hot topic in the science community. Many people believe that a better understanding of the stratosphere will lead to a variety of positive implications. These include: More sophisticated (and realistic) general circulation … Continue reading

Posted in Circulation, Climate, Cyclone, Forecasting, Jet, Modelling, Vortex, Wind | Tagged , , , , , , | 1 Comment

To index or not to index?

Imagine trying to explain whether or not it is a wet and warm winter on the western coast of Norway based on the surface air pressure in Iceland. Sounds far fetched? That’s in a way what researchers do to simplify … Continue reading

Posted in Air, Circulation, Climate, Ocean, Past, Precipitation, Present, Regional, Wind | Tagged , , , , , , , ,

Fun with fluids: ocean mixing and hot chocolate

As my niece just turned 8 and is incredibly curious about sciences, I thought I’d design some basic and fun experiments to introduce her to my research area and interest: oceanography! Unfortunately, fluid mechanics equations are as sexy as a … Continue reading

Posted in Circulation, Learning, Ocean, Scicomm | Tagged , , , | 2 Comments