Essays about: "Aerial Photography"

Showing result 21 - 25 of 27 essays containing the words Aerial Photography.

  1. 21. Stamräkning och identifiering av åtgärdsbehov i röjnings- och gallringbestånd med hjälp av låghöjdsbilder

    University essay from SLU/Dept. of Forest Resource Management

    Author : Johan Djurberg; [2010]
    Keywords : flygbilder; tolkning;

    Abstract : This report is an assessment of the feasibility of using aerial photographs to estimate number of stems per hectare in young forest stands, used together with upper height to determine the need for pre-commercial thinning or ordinary thinning cutting. Aerial photo-interpretation was conducted in 2007 on assignment of Stora Enso Skog AB. READ MORE

  3. 22. Near real-time mapping of floodwater mosquito breeding sites using aerial photographs

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Martina Schäfer; [2010]
    Keywords : visual interpretation; unsupervised classification; georeferencing; mosquito control; Earth and Environmental Sciences;

    Abstract : Summary: Floodwater mosquitoes occur in temporary flooded areas and can cause tremendous nuisance in the near and far surroundings. In the Nedre Dalälven region in Central Sweden, mosquito control is based on application of the biological larvicide Bacillus thuringiensis israelensis (BTI) by helicopter. READ MORE

  4. 23. Gallringsinventering från helikopter utrustad med profilerande laser och kamera för låghöjdsfotografering

    University essay from SLU/Dept. of Forest Resource Management

    Author : olle Wiklund; [2009]
    Keywords : gallring; flygburen laser; digitala låghöjdsbilder; stamantal; medelhöjd;

    Abstract : Today Holmen Skog finds and selects suitable thinning stands using data on upper height and basal area. These figures are often based on basic forest data that has been updated with the help of growth prediction models. The problem is that these figures are not always correct. READ MORE

  5. 24. Digitala fotogrammetriska arbetsstationer för skoglig flygbildstolkning

    University essay from SLU/Dept. of Forest Resource Management

    Author : Kristoffer Önneholm; [2008]
    Keywords : fotogrammetriska arbetsstationer; digitala flygbilder; flygbildstolkning av gallringsbehov;

    Abstract : SCA Skog has taken the initiative to this Master's thesis. Today SCA Skog has a great need to update their informtion on young forest stands across large areas. Traditional field inventory methods for updating stand databases are expensive and time consuming. READ MORE

  6. 25. Flygbildsanalys av trädskiktets status efter brand : en metodstudie

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Ann Österström; [2008]
    Keywords : brandintensitet; flygbildstolkning; naturvårdsbränning; hyggesbränning; brandpåverkan;

    Abstract : During the past years fire has been identified as an important factor for nature conservation in the forest landscape. To accurately quantify the size of a burnt area is obviously important, but also to quantify the degree of fire damage to the tree canopy. READ MORE