Sökning: "lake-level"
Visar resultat 1 - 5 av 18 avhandlingar innehållade ordet lake-level.
1. Past environmental and climate changes in northern Tanzania : Vegetation and lake level variability in Empakaai Crater
Sammanfattning : This thesis presents palaeoenvironmental data from equatorial Africa covering two important time intervals; i) the warming period forming the Pleistocene/Holocene transition and ii) the last millennium. The Empakaai Crater, in northern Tanzania contains a lake from where sediment cores, spanning two time-slices 14.8-9. LÄS MER
2. Holocene vegetation dynamics and climate changes in the Torneträsk area, northern Sweden
Sammanfattning : The aim of this study was to reconstruct the Holocene vegetation history and the climate changes in a subarctic area. The results are based on pollen and macrofossil records from six lakes in the Torneträsk area. The lakes are situated at altitudes between 370 and 999 m a.s. LÄS MER
3. Response of Bolivian Altiplano Lakes to Seasonal and Annual Climate Variations
Sammanfattning : The Bolivian Altiplano is situated between two mountain ranges, the western and eastern central Andes in South America. It has two major lakes, Lake Titicaca to the north, and Lake Poopó to the south, which both are important for the nature as well as for the living conditions on the Altiplano. The two lakes are the remnants of large paleolakes. LÄS MER
4. Simulating the palaeorecord of northern European lakes using a coupled lake-catchment model
Sammanfattning : A coupled lake-catchment model was developed to examine the controls on lake-level changes in currently overflowing lakes during Holocene. The lake energy-balance is simulated as the one-dimensional vertical heat transfer by eddy diffusion and convective mixing. LÄS MER
5. Vårflödesprognoser med utgångspunkt från snötaxeringar i Malmagenområdet
Sammanfattning : The present paper deals with snow assessments as a basis for spring runoff forecasts.The investigation areas are glacier free drainage areas in the Swedish mountains at about 62°N, where the main interest was focused on an area of 100 km2 in which the snow cover during five subsequent winter seasons were assessed by various methods. LÄS MER