Sökning: "ECMWF System 4"

Hittade 2 uppsatser innehållade orden ECMWF System 4.

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

   Master-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

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

   Sammanfattning : 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. LÄS MER

3. 2. Modelling maize (Zea Mays L.) phenology seasonal forecast data

   Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Författare :Tanyaradzwa Joy Nyarai Muswera; [2016]
   Nyckelord :Growing Degree Days GDD ; ECMWF System 4; Physical Geography and Ecosystem analysis; agriculture; maize phenology; GEM; Earth and Environmental Sciences;

   Sammanfattning : Agriculture is an essential economic activity which sustains the livelihood of millions of people around the world. Maize is one of the most grown, consumed and traded cereals in the world mostly because of its adaptability to varied environmental conditions. LÄS MER