Sökning: "Hydrology"

Visar resultat 1 - 5 av 148 uppsatser innehållade ordet Hydrology.

  1. 1. Hydrological catchment analysis from characterisation of organic matter in stream water

    Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaper

    Författare :Hannes Berg Wiklund; [2020-02-05]
    Nyckelord :Organic matter; Time-of-flight mass spectrometry; aquatic chemistry; catchment hydrology;

    Sammanfattning : Organic matter (OM) in aquatic systems is a complex field which have rapidly developed duringthe last decade due to the introduction of high resolution mass spectrometers. The compositionof OM in the aquatic environment is directly dependent on factors such as oxygen supply, pHand the flow rate in the local system. LÄS MER

  2. 2. Carbon dioxide dynamics in agricultural streams : Investigation of two streams draining catchments dominated by agricultural land

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Albin Bostner; [2020]
    Nyckelord :Carbon dioxide; dynamics; streams; agriculture; oversaturation; metabolic control; hyrdological control; Koldioxid; koldynamik; bäckar; jordbruk; övermättat; metabolisk kontroll; hydrologisk kontroll;

    Sammanfattning : In recent years, streams draining agricultural land has been suggested to exhibit high carbon dioxide (CO2) concentrations when compared to streams draining other land-types. The transport of carbon from land to ocean is mainly occurring through the chain of inland waters, and with agricultural land today representing 40% of all continental area many of these inland waters are influenced by agricultural land. LÄS MER

  3. 3. Effekter på klimat, hydrologi och biologisk mångfald av en potentiell våtmarksrestaurering i ån Sennan, Halmstad Kommun.

    Kandidat-uppsats, Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap

    Författare :Joel Jansson; [2020]
    Nyckelord :Wetlands; peatlands; restoration; hydrology; green house gases; biodiversity; Våtmarker; torvmarker; restaurering; hydrologi; växthusgaser; biologisk mångfald;

    Sammanfattning : 1928 beslutades att ån Sennan norr om Karlstorp skulle sänkas, rätas ut och delvis kanaliseras för att öka arealen produktiv jordbruksmark. Men åtgärderna orsakade även flera problem både inom och utanför det område som man undersökte innan genomförandet. LÄS MER

  4. 4. Using X-band Radar with a Neural Network to Forecast Combined Sewer Flow - A case study in Lund

    Master-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Författare :Filip Faust; Per Nelsson; [2020]
    Nyckelord :X-band radar; neural networks; combined sewer; forecasting; urban hydrology; Lund; Technology and Engineering;

    Sammanfattning : This study aimed to forecast combined sewer flow into a wastewater treatment plant in Lund, Sweden by using uncalibrated X-band radar data with a neural network. Neural networks have proved themselves useful in the field of forecasting as they can solve multiple kinds of problems and recognise patterns in the data (Alemu et al. LÄS MER

  5. 5. Studie i att utöka arealen rikkärr i Skåne - Med exempel på hur tre rikkärr kan utökas

    Kandidat-uppsats, Lunds universitet/Examensarbeten i biologi

    Författare :Marcus Ljungdahl Brönmark; [2020]
    Nyckelord :Biology and Life Sciences;

    Sammanfattning : Rich fens contribute with numerous ecosystem services, such as the highest biodiversity found among wetlands, water purification, carbon sequestration, hydrological services, recreational and educational services are all part of services provided from rich fens. Drainage and land-use change has severely damaged or destroyed these services in many regions of Europe and Sweden; restoration plans are needed to change this trend. LÄS MER