Essays about: "weather parameters"

Showing result 1 - 5 of 143 essays containing the words weather parameters.

1. 1. Studies of the PMWE : Polar Mesosphere Winter Echoes

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

   Author : Simon Persson; [2022]
   Keywords : Polar; Mesosphere; Winter; Echoes; ESRAD; Infrasound; PMWE; PMSE; Summer; Radar; VHF; MST; MLT; SPE; HSS; Solar; Wind; evanescent; viscosity; FCA; 42;

   Abstract : This Master thesis examines a phenomenon that occurs in the upper polar atmosphere, namely, Polar Mesospheric Winter Echoes, or PMWEs. PMWEs are radar echoes observed by Very High Frequency Mesosphere Stratosphere Troposphere (VHF MST) radar, from altitudes of 60 to 76 km at 7 to 15 UT, in the winter months from the middle of September to the beginning of May. READ MORE

3. 2. Bearbetningsmetoders påverkan på markorganismers aktivitet i jorden : i perenna odlingar samt i odlingssystem med mellangrödor

   University essay from SLU/Department of Biosystems and Technology (from 130101)

   Author : Jenny Olofsson; [2021]
   Keywords : markorganismer; respiration; organiskt material; odlingsmetoder; biologiska processer; kemiska processer och fysikaliska processer; perenna odlingssystem; mellangrödor; klimatförändringar; microbial activity; respiration; organic matter; soil tillage methods; biological processes; chemical processes and physical processes; perennial crops; conservation agriculture; intermediate crops; climate change;

   Abstract : Klimatförändringarna, som både påverkat och påverkar vår planet, kräver att mänskliga aktiviteter förändras till mer resurssnåla och systemeffektiva processer. I dessa processer bör markens bördighet vara det centrala, eftersom en bördig mark kan generera stabila skördar och bidra till en långsiktigt hållbar matförsörjning. READ MORE

4. 3. Investigating off-grid systems for a mobile milking facility

   University essay from SLU/Dept. of Energy and Technology

   Author : Musadag Mohamed Salah Eldin Elzein; [2021]
   Keywords : off-grid systems; renewable energy RE; Solar PV; biofuels; insight maker; HOMER;

   Abstract : This study examined the possible renewable energy sources that can provide the necessary power for a mobile Off-grid Automated Milking System (AMS) at a grazing pasture. This involved choosing the most cost effective, environmental friendly and sustainable mean for a mobile AMS which aims to be operating between months of May to September at a rate of milking 20 cows per day. READ MORE

5. 4. Concrete in vertical slipforms : A process for determining a suitable concrete composition

   University essay from KTH/Betongbyggnad

   Author : Ellen Gegerfelt; Alva Hasselqvist; [2021]
   Keywords : Slipforming; fresh concrete; workability; consistency; alternative binders; slipform rate; lifting cracks; delamination; lump formation; Glidformsgjutning; färsk betong; arbetbarhet; konsistens; alternativa bindemedel; glidformshastighet; lyftsprickor; delaminering; klumpbildning;

   Abstract : In the construction industry of today, many projects are getting bigger, higher and more complicated than ever before. The most important material in these projects is concrete and the process of casting has developed a lot during the last century. READ MORE

6. 5. Multivariate Short-term Electricity Load Forecasting with Deep Learning and exogenous covariates

   University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

   Author : Nordström Oscar; [2021]
   Keywords : Machine learning; Time series; Deep learning; Forecasting; Short-term electricity load forecasting; Artificial Neural Network;

   Abstract : Maintaining the electricity balance between supply and demand is a challenge for electricity suppliers. If there is an under or overproduction, it entails financial costs and affects consumers and the climate. To better understand how to maintain the balance, can the suppliers use short-term forecasts of electricity load. READ MORE