Essays about: "HARMONIE-AROME"

Showing result 1 - 5 of 8 essays containing the word HARMONIE-AROME.

1. 1. A Comparison of Statistical Methods to Generate Short-Term Probabilistic Forecasts for Wind Power Production Purposes in Iceland

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

   Author : Arnór Tumi Jóhannsson; [2022]
   Keywords : Wind power; Iceland; Atmospheric Boundary Layer; atmospheric stability; probabilistic forecasting; Machine Learning; Quantile Regression Forest; Vindkraft; Island; gränsskikt; atmosfärisk stabilitet; probabilistisk prognos; Machine Learning; Quantile Regression Forest;

   Abstract : Accurate forecasts of wind speed and power production are of great value for wind power producers. In Southwest Iceland, wind power installations are being planned by various entities. READ MORE

3. 2. Verification of HARMONIE-AROME, ECMWF-IFS and WRF: Visibility and Cloud Base Height

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

   Author : Elin Kindlundh; [2020]
   Keywords : HARMONIE-AROME; ECMWF-IFS; WRF; verification; visibility; cloud base height; HARMONIE-AROME; ECMWF-IFS; WRF; verifikation; sikt; molnbashöjd;

   Abstract : Visibility and cloud base height are two important parameters within aviation meteorology and verification of operational numerical weather prediction (NWP) models with regard to these two parameters is therefore important. Visibility is often parameterized through an extinction coefficient, which is dependent on for example liquid or ice water content, however it also depends on the humidity, precipitation intensity and particle concentration. READ MORE

4. 3. Improving Short-Range Cloud Forecasts in Harmonie-Arome Through Cloud Initialization Using Mesan Cloud Data

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

   Author : Joakim Pyykkö; [2019]
   Keywords : cloud initialization; HARMONIE-AROME; MESAN; satellite product; synoptic weather station;

   Abstract : Previous studies, such as van der Veen (2012) and White et al. (2017), have demonstrated the potential of using measurement-based cloud data to improve Numerical Weather Prediction (NWP) based cloud forecasts. This can be done through cloud initialization; a process of injecting cloud data after the regular data assimilation in an NWP model. READ MORE

5. 4. Impact of different atmospheric forcings on surface mass balance estimates in Greenland

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Stina Olandersson; [2018]
   Keywords : Physical Geography and Ecosystem analysis; surface mass balance; Greenland; climate models; numerical weather prediction models; surface energy balance; Arctic; climate change; Earth and Environmental Sciences;

   Abstract : The Greenland Ice sheet (GIS) is the second largest ice sheet on Earth and thus stores a large amount of Earths freshwater. Because of climate change and the Arctic amplification, GIS is experiencing changes and increased melt rates. The total mass budget determines the amount of sea level rise caused by input from freshwater from the GIS. READ MORE

6. 5. Analysis and comparison of weather models for solar irradiance forecasts in Sweden

   University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

   Author : Linus Falk; [2018]
   Keywords : meteorology; weather models; ensemble forecasts; solar irradiance; Physics and Astronomy;

   Abstract : Solar radiation is affected in a variety of different ways through the atmosphere and on its way down to the Earth’s surface. Clouds are the main factor in this attenuation of solar radiation, but aerosols, ozone and other different gases have a significant impact too. Understanding these processes is fundamental to solar forecasting. READ MORE