Essays about: "ECMWF"

Showing result 1 - 5 of 15 essays containing the word ECMWF.

  1. 1. Evaluating the accuracy of NEWA, ERA5 and NORA3 in predicting onshore wind conditions: a comparative study using ICOS meteorological mast data in Sweden

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Svetlana Kuru; [2024]
    Keywords : NEWA; ERA5; NORA3; wind speed; wind distribution; correlation coefficient;

    Abstract : The ECMWF Reanalysis v5 (ERA5), the New European Wind Atlas (NEWA), and the 3 km Norwegian Reanalysis (NORA3) are reference datasets that are available for industry and research. The resolution of 3km in both the NORA3 and NEWA datasets sets them apart, while ERA5, with its 31km resolution, continues to serve as a reliable data source that is widely used in the industry. READ MORE

  2. 2. Case Study of Discharge Modeling for Nissan River in Halmstad Municipality

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Federico Vega Ezpeleta; [2022]
    Keywords : Machine learning; Random Forrest Regression; Linear Regression; Discharge modeling; ERA5; CMIP6;

    Abstract : Changes in precipitation patterns, temperature, and other climatic variables have been shown to modify thehydrological cycle and hydrological systems, potentially resulting in a shift in river runoff behavior and an increasedrisk of floods. There have been several instances of devastating floods throughout Europe’s history, which haveresulted in devastation and enormous economic losses. READ MORE

  3. 3. Climate driven variability of wind energy over Europe

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Kévin Walcarius; [2021]
    Keywords : ;

    Abstract : In the following report, two methods of wind downscalling are applied to reanalysed 10-m wind speed data from the ERA5 reanalysis of ECMWF, in order to derive wind speed data from 01/01/1979 till 31/12/2019 at the location of onshore wind farms from the ”World Wind Farm Database”.  Being unable to use complex downscalling methods such as Generalisation (WAsP method- ology) nor Kriging interpolation, the study has been restricted to simple downscalling methods. READ MORE

  4. 4. 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

  5. 5. Deriving characteristics of thin cirrus clouds from observations with the IRF lidar

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Jennifer Edman; [2019]
    Keywords : cirrus; lidar; polar regions; optical thickness; clouds; ice clouds; BSR; backscatter coefficient;

    Abstract : Cirrus clouds play an important role in radiative transfer, and thus have impact on the energy balance of the atmosphere and the climate of the Earth. Furthermore, they occur often and cover large areas globally at any time. Nevertheless, cirrus clouds are poorly studied, especially in the polar regions. READ MORE