Essays about: "TWI"

Showing result 11 - 15 of 21 essays containing the word TWI.

  1. 11. Markfuktighetsförhållanden och jordartsfördelningens påverkan på kväve- och fosforförluster från skog och sankmark

    University essay from SLU/Dept. of Aquatic Sciences and Assessment

    Author : Eleonor Dacke; [2018]
    Keywords : Övergödning; PLC6 typhalt; typhalt; GIS; flödesackumulering; NNH; TWI; DTW;

    Abstract : Övergödningen utgör ett allvarligt hot mot Östersjön och för att kunna åtgärda problemen krävs effektiva metoder för uppskattning av näringsbelastning och källfördelning. Ökad förståelse för bakomliggande orsaksfaktorer till diffusa näringsförluster från skog och sankmark kan förbättra skattningen av belastning och bidra till riktade åtgärder. READ MORE

  3. 12. Spatial Variation of THg and MeHg Stream Concentrations and Its Relation to TOC

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Maria Tranvik; [2017]
    Keywords : Mercury; organic matter; catchment characteristics; GIS; deforestation; Kvicksilver; organiskt material; avrinningsområdesfaktorer; GIS; skogsavverkning;

    Abstract : Mercury (Hg) which originates from global emissions to the atmosphere can deposit far away from the source. There is often a weak correlation between Hg deposition and concentrations in runoff, therefore catchment specific parameters might be of importance in controlling the amount of Hg ending up in watercourses and fish. READ MORE

  4. 13. LANGUAGE RELATED OUTCOMES OF BILINGUAL EDUCATION IN PRESCHOOL AND PRIMARY SCHOOL : A SYSTEMATIC REVIEW FROM 2000 TO 2016

    University essay from Högskolan i Jönköping/HLK, CHILD

    Author : Lucio Lazzarino; [2017]
    Keywords : Bilingual Education; Minority Children; Language Outcomes; Preschool; Primary School; Systematic Literature Review;

    Abstract : Good language skills are essential to academic success. Immigrant and refugee children who enter school without previous knowledge of the societal language are more prone to failure and need of special support. READ MORE

  5. 14. Hydrological modeling enhancement using GIS : An improved topographic wetness index for wetland detection

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Patricia Rull; [2016]
    Keywords : Blue spots; digital dams; culverts; hydrologically enforced DEM; topographic wetness index; TWI; soil-topographic wetness index; STI; wetland detection;

    Abstract : Hydrological modeling, like runoff modelling for flood prevention, is based on digital elevation models (DEMs). The fact that the DEMs do not represent existing road culverts can lead to considerable hydrological misinterpretations. READ MORE

  6. 15. Can the introduction of the topographic indices in LPJ-GUESS improve the spatial representation of environmental variables?

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Alejandra Narváez Vallejo; [2016]
    Keywords : smooth topography; drainage area; slope; topographic wetness index; LPJ-GUESS; GIS; physical geography and ecosystem analysis; geography; geographic information systems; leaf area index; spatial patterns; MODIS LAI.; Earth and Environmental Sciences;

    Abstract : Ecosystem modelling is an always evolving science trying to catch the complexity of the nature and its principles to model environmental responses in a realistic way. Over and over, models try to introduce more variables and interactions to achieve better representations of phenomena of interest like the responses of the ecosystem to a fast changing world (climate change, land use change). READ MORE