Essays about: "Weather Research and Forecasting Model"

Showing result 11 - 15 of 21 essays containing the words Weather Research and Forecasting Model.

  1. 11. 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

  3. 12. Wind Forecasts Using Large Eddy Simulations for Stratospheric Balloon Applications

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Ludvig Sjöberg; [2019]
    Keywords : Weather Research and Forecasting Model; Large Eddy Simulation; Microscale Meteorology;

    Abstract : The launch of large stratospheric balloons is highly dependant on the meteorological conditions at ground level, including wind speed. The balloon launch base Esrange Space Center in northern Sweden currently uses forecasts delivered through the Swedish Meteorological and Hydrological Institute to predict opportunities for balloon launches. READ MORE

  4. 13. The electricity demand andsupply in El Espino : Alternatives for diversification of renewabletechnologies

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Jessica Granqvist; Lily Gao; [2019]
    Keywords : Hybrid system; wind turbine; solar PV; optimization; rural electrification; Hybridsystem; vindturbin; sol PV; optimisering; landsbyggdselektrifiering;

    Abstract : The use of alternative fuels, particularly renewable energy sources, has been an important strategy to achieve greenhouse gas emission reductions. In Bolivia, many rural areas struggle with an unreliable power supply. READ MORE

  5. 14. Impact of Wind Farm Control Technologies on Wind Turbine Reliability

    University essay from Uppsala universitet/Elektricitetslära

    Author : Julia Walgern; [2019]
    Keywords : Offshore wind farm; wind turbine yaw control; operation and maintenance; reliability; wake redirection control; closed-loop control; active wake steering control; O M simulation tool;

    Abstract : Cost efficient operation and maintenance strategies are crucial for reducing cost of wind energy. Since the regime change from feed-in tariffs to an auction-based bidding system for capacity in most European wind projects, levelized cost of energy is challenged constantly. READ MORE

  6. 15. Early detection and recommendation of higher precision in treatment of late blight in potato crops by using drone photos

    University essay from Lunds universitet/Riskhantering (CI); Lunds universitet/Avdelningen för Riskhantering och Samhällssäkerhet

    Author : Anna Lindéus; [2018]
    Keywords : Bayesian network; Decision Support systems; Drone photo; Late blight; Potato; Precision Agriculture; Remote sensing; Risk classification model; Risk prediction; Technology and Engineering;

    Abstract : In this thesis an evaluation was performed for the potential use of drone photos in Decision Support System (DSS) to detect outbreak of late blight and provide recommend treatment with fungicides. Late blight is a common crop infection on potato in Sweden. A DSS with and without information from drones were developed in three steps. READ MORE