Searched for: subject%3A%22stratocumulus%22
(1 - 7 of 7)
document
Steerneman, Mats (author)
This thesis investigates the implementation of three-dimensional nudging into large-eddy simulation (LES) to assimilate observed atmospheric data into an LES model. 3D-nudging 'pushes' the thermodynamic fields in a simulation towards the desired observed fields. The aim is to test if such a method is useful in improving solar forecasts of...
master thesis 2023
document
Maqsood, Bilal (author)
Over the period 1901-2012, the average global sea surface temperature has increased by 0.89 °C due to climate change and it is expected to increase consistent with global warming. As a consequence, marine ecosystems have become more susceptible to change in species and ocean chemistry. Due to the increase in sea surface temperature, the ocean pH...
bachelor thesis 2023
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Lunderman, Spencer (author), Morzfeld, Matthias (author), Glassmeier, F. (author), Feingold, Graham (author)
Predator–prey dynamics have been suggested as simplified models of stratocumulus clouds, with rain acting as a predator of the clouds. We describe a mathematical and computational framework for estimating the parameters of a simplified model from a large eddy simulation (LES). In our method, we extract cycles of cloud growth and decay from...
journal article 2020
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de Roode, S.R. (author), Frederikse, T. (author), Siebesma, A.P. (author), Ackerman, Andrew S. (author), Chylik, Jan (author), Field, Paul R. (author), Fricke, Jens (author), Gryschka, Micha (author), Hill, Adrian (author)
To quantify the turbulent transport at gray zone length scales between 1 and 10 km, the Lagrangian evolution of the CONSTRAIN cold air outbreak case was simulated with seven large eddy models. The case is characterized by rather large latent and sensible heat fluxes and a rapid deepening rate of the boundary layer. In some models the...
journal article 2019
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Heuff, F.M.G. (author)
In this study the prediction of stratocumulus occurrence by the Large-Eddy Simulation model DALES was investigated. The performance of DALES was compared with that of the large-scale weather model RACMO. A method was developed which can consistently initialise the model by assimilation of observations in addition to large-scale weather model...
master thesis 2016
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Van der Dussen, J.J. (author)
Clouds have a strong net cooling effect on our planet, as they reflect a large part of the incident solar radiation. To be able to make accurate forecasts of the global climate, cloudiness should therefore be correctly represented by climate models. Currently, however there are large differences in the forecasted temperature increase among...
doctoral thesis 2015
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Van der Dussen, J.J. (author), De Roode, S.R. (author), Ackerman, A.S. (author), Blossey, P.N. (author), Bretherton, C.S. (author), Kurowski, M.J. (author), Lock, A.P. (author), Neggers, R.A.J. (author), Sandu, I. (author), Siebesma, A.P. (author)
Large-eddy simulations of a Lagrangian transition from a vertically well-mixed stratocumulus-topped boundary layer to a situation in which shallow cumuli penetrate an overlying layer of thin and broken stratocumulus are compared with aircraft observations collected during the Atlantic Stratocumulus Transition Experiment. Despite the complexity...
journal article 2013
Searched for: subject%3A%22stratocumulus%22
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