The effect of topography on storm-track intensity is examined with a set of primitive equation model integrations. This effect is found to be crucially dependent on the latitudinal structure of the background flow impinging on the topography. If the background flow consists of a weak double jet, higher topography leads to an intensification of the storm track downstream of the topography, consi...

The Northern Hemisphere storm tracks have maximum intensity over the Pacific and Atlantic basins; their intensity is reduced over the continents downstream. Here, simulations with an idealized aquaplanet general circulation model are used to demonstrate that even without continents, storm tracks have a self-determined longitudinal length scale. Their length is controlled primarily by the planet...

In an unfamiliar environment we spot and explore all available information which might guide us to a desired location. This largely unconscious processing is done by our trained sensory and cognitive systems. These recognise and memorise sets of landmarks which allow us to create a mental map of the environment, and this map enables us to navigate by exploiting very few but the most important l...

Signatures of eddy variability and vorticity forcing are diagnosed in the atmosphere and ocean from weather center reanalysis and altimetric data broadly covering the same period, 1992–2002. In the atmosphere, there are localized regions of eddy variability referred to as storm tracks. At the entrance of the storm track the eddies grow, providing a downgradient heat flux and accelerating the me...

The overall project goal is to assess the skill of the probabilistic nature of mediumand extended-range forecasts of tropical cyclone activity and track over the tropical WPAC. Skill is examined with respect to processes associated with forcing by various tropical circulation factors, which are hypothesized to be the largest contributor to low-frequency variation in tropical cyclone activity an...

In computer science, research results have surprisingly little impact on teacher practices [6]. Computer science teachers are influenced by practical concerns. They care about what students say [5]. They care about having textbooks match the curriculum that they want to teach [11]. The hypothesis underlying our CSLearning4U project is that we can improve learning by improving textbooks. By rede...

  Background: Teachers’ self-efficacy and development may be conceptualized as their beliefs in their own ability to plan, organize and carry out activities that are required to attain educational goals. In this study, we examined the effect of different medical education training courses (six-day, one- month short- term and six-month long- term courses) on perceived self-effica...

The course activities are anchored around project work which expands over two quarters. In the projects the students are supposed to solve demanding real-life problems whose specification and solution requires active end-user participation. There can be two types of project providers: 1) Partners from industry. 2) Researchers or research labs from our university. Project providers, who wish to ...