Essays about: "Long term variability"

Showing result 21 - 25 of 86 essays containing the words Long term variability.

1. 21. Climate Variability and Interstate Conflict : In the Arctic Region

   University essay from Uppsala universitet/Institutionen för freds- och konfliktforskning

   Author : Anna Svedin; [2022]
   Keywords : climate variability; interstate conflict; militarized interstate incidents; Arctic;

   Abstract : This thesis draws on the climate-conflict research field to explore the question how does climate variability affect interstate conflict? This thesis contributes to various gaps in previous research by studying interstate conflict while most climate-conflict research investigates internal conflict, by using a new operationalization of climate variability as sea ice extent, and by studying an understudied case, the Arctic region. The theoretical argument consists of two parallel processes, a background mechanism focused on long-term climate change and a main mechanism focused on short-term climate variability. READ MORE

3. 22. Ionospheric Effect on GPS During Solar Maximum

   University essay from KTH/Fastigheter och byggande

   Author : Netsai Wiboonwipa; [2021]
   Keywords : GPS; Ionosphere; MS-TIDs; Polar cap patches; GPS; jonosfär; MS-TID; polarkåpor;

   Abstract : Ionospheric effects are one of the factors that can have negative impact on Global Navigation Satellite Systems (GNSS). Those effects can be called medium-scale traveling ionospheric disturbances (MS-TIDs) at middle latitude regions and polar cap patches at high latitude regions. READ MORE

4. 23. Open Source Grid Expansion Models for the EU Project Spine

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Akshaya Tammanur Ravi; [2021]
   Keywords : Expansion Planning; Renewable Energy Sources; Operational Variability; Representative Days; Long-term Uncertainties; Stochastic Optimization; Utbyggnadsplanering; Förnybara energikällor; Variabel driftsituation; Representativa dagar; Långsiktiga osäkerheter; Stokastisk optimering;

   Abstract : Modern power systems are at the forefront of addressing the transition towards a decarbonized energy system, with increased integration of renewable energy sources becoming the key means to achieve the same. In this context, an expansion planning problem provides a decision support framework for investments in new generation and transmission assets over a long time-frame, addressing a wide range of technical and economic criteria aligned with national policies. READ MORE

5. 24. Causes of the bullwhip effect : A study of the bullwhip effect in the Volvo Group Service Market Logistics’ supply chain

   University essay from Linköpings universitet/Logistik- och kvalitetsutveckling

   Author : Klara Dahlin; Oscar Säfström; [2021]
   Keywords : logistics; aftermarket; spare part logistics; supply chain; logistics management; bullwhip effect; the bullwhip effect; bullwhip; service market logistics; inventory; orders; demand; amplification; upstream; Forrester effect; root causes; information transparency; logistics and supply chain management; root causes of the bullwhip effect; eliminate the bullwhip effect; reduce the bullwhip effect; eliminate; reduce; logistik; bullwhip-effekten; bullwhipeffekten; Forrestereffekten; bullwhip; försörjningskedja; logistik och supply chain management; eftermarknad; reservdelar; informationsdelning; rotorsaker; bullwhipeffektens rotorsaker; eliminera bullwhipeffekten; reducera bullwhipeffekten; reducera; eliminera; bullwhip effekten;

   Abstract : The bullwhip effect is defined as an upstream amplification of demand variability and has received interest within multinational companies for decades. As early as in the 1950’s, Forrester (1958) discussed what is today known as the bullwhip effect, which has a negative impact on the customer service, costs, and inventory investment in a supply chain (Lee et al. READ MORE

6. 25. Using blue light reflectance from high-resolution images (6000 dpi) of Scots pine tree rings to reconstruct three centuries of Scottish summer temperatures

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Alice De Schutter; Karin Markendahl; [2021]
   Keywords : summer temperature reconstruction; climate change; Scotland; Scots pines; ultra-high image resolution; blue intensity; rekonstruktion av sommartemperatur; klimatförändringar; Skottland; skotska tallar; hög bildupplösning; blå intensitet;

   Abstract : Advances in scanner technology have made it possible to obtain high resolution (6000 dpi) images of tree samples. Due to the images’ increased capability of resolving anatomical wood structures, the new technology could be of benefit to dendroclimatology.  This study attempts to expand on Rydval et al. READ MORE