Dear ecofriends, We are studying the diversity and structure of sandy coastal vegetation in northeastern Brazil. This vegetation type is very complex and within a few hundred meters can change from forest to shrubland or just herbaceous cover.
We took 16-mm fisheye photographs of 85 plots aiming at extracting canopy openess from them. The problem is that our lens is not hemispherical 8-mm. I would like to know whether we could extract more detailed information about sunfleck density, suntpath, diffuse radiation etc, that programs like GLA provide. These softwares work for hemispherical photographs. Can they be adjusted for 16-mm photographs? Perhaps through specific parameters? Many thanks in advance for any ideas. All the best, Alexandre Dr. Alexandre F. Souza Departamento de Botânica, Ecologia e Zoologia Universidade Federal do Rio Grande do Norte (UFRN) http://www.docente.ufrn.br/alexsouza CurrÃculo Lattes: lattes.cnpq.br/7844758818522706
