Search for dissertations about: "lake status"

Showing result 1 - 5 of 68 swedish dissertations containing the words lake status.

2. 1. Diatoms in Lake Duluti : Tracking Environmental Variability in Northern Tanzania during the Past 1000 Years

   Author : Helena Öberg; Lars-Ove Westerberg; Karin Holmgren; Jan Risberg; Robert Marchant; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Paleolimnology; Tanzania; Diatoms; Climate change; Crater lake; Physical Geography; naturgeografi;

   Abstract : The tropics are the regions which are least understood climatically and new data on past climate variability is necessary for reliable future modeling of climate change. This thesis contributes with new paleoenvironmental information from a small crater lake in northern Tanzania and provides an additional link between the integrated history of climate, environment and socioeconomic variability in tropical Africa. READ MORE

4. 2. Linking lake variability, climate, and human activity in Basotu, Tanzania

   Author : Lindsey Higgins; Lars-Ove Westerberg; Jan Risberg; Sarah Davies; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Tanzania; crater lake; climate change; land-use change; water resources; environmental variability; diatoms; paleolimnology; chronology; Physical Geography; naturgeografi;

   Abstract : Paleoenvironmental investigations establish important baseline knowledge of the natural variability of lake systems, to better understand human impacts on the landscape, and the effects of climate change on water resources. By combining long-term environmental history with investigations into modern land use patterns and climatological events, a wider perspective can be reached that has practical applications in water governance. READ MORE

5. 3. The role and use of information in transboundary water management

   Author : Susanna Nilsson; KTH; []
   Keywords : Integrated Water Resources Management IWRM ; transboundary water management; information; EU Water Framework Directive WFD ; regimes; policy and decision making; Lake Neusiedl; Lake Constance; Elbe River;

   Abstract : Management of water bodies according to their river basinsis becoming increasingly common, as the concept of IntegratedWater Resources Management (IWRM) is getting more and moreacknowl-edged. In Europe, a large portion of these“new”management units will probably be internationalor transboundary. READ MORE

6. 4. Predictions Within and Across Aquatic Systems using Statistical Methods and Models

   Author : Peter H. Dimberg; Roger Herbert; Andreas C. Bryhn; Gesa Weyhenmeyer; Mikael Malmaeus; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Lake; Water quality; Chlorophyll-a; Total phosphorus; Seasonality; Morphometry; Regression model; Probability; Markov chain; Genetic programming; Temporal-trend; Earth Science with specialization in Environmental Analysis; Geovetenskap med inriktning mot miljöanalys;

   Abstract : Aquatic ecosystems are an essential source for life and, in many regions, are exploited to a degree which deteriorates their ecological status. Today, more than 50 % of the European lakes suffer from an ecological status which is unsatisfactory. READ MORE

7. 5. Sediment transport from source to sink in the Lake Baikal basin : Impacts of hydroclimatic change and mining

   Author : Jan Pietroń; Jerker Jarsjö; Enrica Viparelli; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; sediment transport; human impact; hydroclimatic change; surface mining; metal-enriched sediment; Lake Baikal; the Selenga River; the Selenga Delta; Physical Geography; naturgeografi;

   Abstract : Different magnitude, intensity and timing of precipitation can impact runoff, hillslope erosion and transport of sediment along river channels.  Human activities, such as dam construction and surface mining can also considerably influence transport of sediment and sediment-bound contaminants. READ MORE