Sökning: "rainfall disaggregation"

Hittade 4 uppsatser innehållade orden rainfall disaggregation.

  1. 1. High frequency rainfall data disaggregation with a random cascade model : Identifying regional differences in hyetographs in Sweden

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Louis Rulewski Stenberg; [2021]
    Nyckelord :Random cascade model; disaggregation; high frequency; rainfall data; hyetograph; spatial transferability; regional differences; Swedish climate; clustering; Slumpmässig kaskadmodell; disaggregering; högfrekvens; regndata; hyetograf; rumslig överförbarhet; regionala skillnader; Sveriges klimat; klustring;

    Sammanfattning : The field of urban hydrology is in need of high temporal resolution data series in order to effectively model and analyse existing and future trends in extreme precipitation. When high resolution data sets are, for any number of reasons, not available for a given location, the technique of disaggregation using a random cascade model can be applied. LÄS MER

  3. 2. Modeling hydrometeorological extremes in Alpine catchments

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Theo Voulgaridis; [2017]
    Nyckelord :method of fragments; HBV; rainfall disaggregation; weather generation; hydrological modeling; modeling; översvämningsmodellering; hydrologisk modellering; vädergenerator; hbv-modellen;

    Sammanfattning : Uncertainties with a modeling framework consisting of a weather generator, two precipitation disaggregation models and the hydrological HBV model was assessed with respect to hydrometeorological extremes in Tyrol, Austria. Extreme precipitation events are expected to increase in intensity and frequency in the Alps during a warmer climate. LÄS MER

  4. 3. Exploring the spatial relationship between NDVI and rainfall in the semi-arid Sahel with geographically weighted regression

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Stefanos Georganos; [2016]
    Nyckelord :geomatics; rainfall; Sahel; scale dependency; non-stationarity; physical geography and ecosystem analysis; geographically weighted regression; Earth and Environmental Sciences;

    Sammanfattning : The Normalized Vegetation Difference Index (NDVI) is frequently used as a surrogate for vegetation properties and is often correlated with climatic variables such as rainfall. However, studies have shown that conventional regression models used to study the spatial relationship between NDVI and rainfall are often plagued by non-stationarity and are scale dependent. LÄS MER

  5. 4. Soil Loss Estimation Based on the USLE/GIS Approach Through Small Catchments - A Minor Field Study in Tunisia

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Författare :Linus Andersson; [2010]
    Nyckelord :Minor Field Study; MFS; Tunisia; water erosion modeling; erosion; soil loss; GIS; Universal Soil Loss Equation; USLE; Earth and Environmental Sciences; Technology and Engineering;

    Sammanfattning : A USLE/GIS approach was applied to estimate soil loss for the two catchments ‘Mrichet’ and ‘Sadine2’ in the semi-arid Tunisian Dorsal. The approach is inspired by the doctoral thesis ‘Water erosion modeling using fractal rainfall disaggregation – A study in semiarid Tunisia’ by Dr. Sihem Jebari. LÄS MER