Essays about: "Precipitation Forecast"

Showing result 21 - 23 of 23 essays containing the words Precipitation Forecast.

1. 21. Bud burst of birch in Finland and the United Kingdom - Logistic regression analysis and modeling

   University essay from Lunds universitet/Matematisk statistik

   Author : Jesse Burström; [2013]
   Keywords : Mathematics and Statistics;

   Abstract : The day of bud burst (DBB) of different tree species are known to be affected by factors such as growing degree days and temperature. In this paper a two state Markov chain is used to model DBB for birch. The model is fit using logistic regression and LASSO regularization is used to evaluate which of many potential factors best forecast DBB. READ MORE

3. 22. Numerical exploration of radiative-dynamic interactions in cirrus

   University essay from Institutionen för geovetenskaper

   Author : Stina Sjöström; [2007]
   Keywords : radiation; dynamic; cirrus; numerical simulation; meteorology;

   Abstract : An important factor in forecast models today is cirrus clouds, but not much are known about their dynamics which makes them hard to parameterize. In this study a new theory was derived to enable a more correct way to describe the interplay between radiative heating and dynamical motions in these clouds. READ MORE

4. 23. Snow or rain? - A matter of wet-bulb temperature

   University essay from Uppsala universitet/Luft-, vatten- och landskapslära

   Author : Arvid Olsen; [2003]
   Keywords : condensation scheme; HIRLAM; MESAN; rain formation; snow formation;

   Abstract : Accurate precipitation-type forecasts are essential in many areas of our modern society andtherefore there is a need to develop proper working methods for this purpose. Focus of thiswork has been to study important physical processes decisive in deciding both the temperatureof the precipitation particles, hence affecting their phase, and the surrounding air. READ MORE