I am a PhD student in Marine Biology working on marine protected areas and the influence of spatial protection on fisheries. For this I am using vessel tracking data which I plot and map using QGIS and ArcGIS.
3 Why do area calculations return negative values? aug 31 '13
3 How to combine several datapoints in one location to a single point varying in size accordingly? oct 18 '13
2 Problems with scale bar units in qgis composer aug 29 '13
1 Delete shapefile object dec 1