I have ArcGIS Desktop Advanced and so far have completed the following;
Used Supervised classification on a satellite image to identify the invasive species with field verification. I have converted the raster to a vector polygon to get the area in hectares.
Used Supervised classification in a second satellite image in the same area with a different time stamp and again converted to polygon to obtain area in hectares.
I would now like to;
Determine the rate of spread for this current period between the 2 satellite images/polygons and;
Use this to predict future spread of the species.
Can anybody offer some suggestions of the workflow to use?
The main reason I converted to a polygon was the information is giving to a volunteer community group who are using Google Earth.
No I haven't determined the distance between the two. This is the part I wasn't sure about because as you know, there are more ways than one in ArcGIS to undertake a task.
It might help if you had a screen grab of both sets of data for an area to facilitate other suggestions. I am sure the situation isn't as simple as 'here it was' ... 'here it is'
