Essays about: "sediment accumulation"

Showing result 1 - 5 of 33 essays containing the words sediment accumulation.

1. 1. Mercury accumulation in lake sediments on different time scales – the influence of algal primary production

   University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

   Author : Anne Rebotzke; [2023]
   Keywords : mercury; lake sediment; primary productivity; algal scavenging; biogenic silica; diatom proxy; chlorophyll-a; organic matter;

   Abstract : The aim of this work is to test the proposed approach of algal scavenging as a driver of sediment mercury (Hg) on different time scales and to gain a better understanding of the mechanisms of Hg accumulation in lake sediments. A 3000-year sediment record from Nylandssjön in northern Sweden was analysed for this purpose, as well as a 20-year sediment record from the seasonal sediment traps of this lake. READ MORE

3. 2. Longshore Sediment Transport Along the Coast of Ystad Municipality

   University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Author : Isa Berin; Johanna Jacobson Löwdin; [2022]
   Keywords : Coastal erosion; sediment dynamics; longshore sediment transport; CERC; shoreline change; Technology and Engineering;

   Abstract : The coast of Ystad municipality has historically been subject to erosion, leading to the loss of recreational areas and near-beach structures, consequently resulting in the implementation of mitigating measures. With the ongoing climate change, erosion is expected to continue. READ MORE

4. 3. Investigating the Fluxes of Radio-Cesium (137Cs) in Sweden : Investigating the Fluxes of Radio-Cesium (137Cs) in Sweden

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Hammad Masood; [2022]
   Keywords : Chernobyl incident; Sweden; radio-cesium; contamination; terrestrial environment; quatic environment;

   Abstract : Technological advancement and the quest for power have gradually contaminated our environment, as industrialization, agriculture, and nuclear activities progressed. In the year 1986, a terrible nuclear incident occurred in Ukraine, in which the nuclear reactor exploded. READ MORE

5. 4. Variations in depositional environments of the Paleogene Firkanten Formation across Adventdalen, from Operafjellet to Breinosa

   University essay from Göteborgs universitet/Institutionen för geovetenskaper

   Author : Anna Stella Guðmundsdóttir; [2021-03-18]
   Keywords : ;

   Abstract : The lowermost Paleogene clastic infill of the Central Spitsbergen Tertiary Basin, the coal bearing Firkanten Formation, has been the subject of study for researchers in the past but little focus has been on the northeast edge of the basin until now. Due to the economic potential of the coal seams in the formation, the Norwegian mining company, Store Norske Spitsbergen Grubekompani (SNSG), has for several years conducted core drilling in key locations in basin, and for decades, they have given an access to their core material to researchers. READ MORE

6. 5. Evaluation of bank erosion and stability analysis along Rönne å at Ängelholm, Sweden

   University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Author : Arnold Mate Kalimukwa; Abuzack Juma Mohamed; [2021]
   Keywords : HEC-RAS; BSTEM; cross section; erosion; sediment transport; deposition; bank stability; safety factor; Technology and Engineering;

   Abstract : This master thesis report presents the results of evaluation of bank erosion and stability analysis along Rönne å (river) at Ängelholm, located in south-west of Sweden within Scania. The main objectives cover building a hydrodynamic model, studying parameters that define sediment transport, modelling sediment transport within the river, mapping out erosive stretches and comparing to earlier observational study conducted by Norconsult in 2013, and finally conducting analysis of bank stability in most erosive stretches. READ MORE