When aspect is from 315 degrees to 45 degrees (i.e., from NW to NE), we will assume that this is generally a North facing slope (value =1). When aspect is from 135 degrees to 225 degrees (i.e., from NW to NE), we will assume that this is usually a South facing slope (value =3). Use the reclassify tool and click on This will allow us to convert the aspect “Classify” button. ranges to 1 for North-northeast, 2 for East, 3 for South, 4 for West and 5 for North-northwest, so that we have 5 values (see below for the break values). Enter the break values on the right side of the window. Call the result Aspect_5 class. Note that we have to North into two categories, since North covers two aspect ranges ‘split’ and 315 to 360). The resulting reclassification will produce the following raster.
When aspect is from 315 degrees to 45 degrees (i.e., from NW to NE), we will assume that this is generally a North facing slope (value =1). When aspect is from 135 degrees to 225 degrees (i.e., from NW to NE), we will assume that this is usually a South facing slope (value =3). Use the reclassify tool and click on “Classify” button. This will allow us to convert the aspect ranges to 1 for North-northeast, 2 for East, 3 for South, 4 for West and 5 for North-northwest, so that we have 5 values (see below for the break values). Enter the break values on the right side of the window. Call the result Aspect_5 class. Note that we have to ‘split’ North into two categories, since North covers two aspect ranges and 315 to 360). The resulting reclassification will produce the following raster.
Exe5-Application%20of%20satellite%20remote%20sensing%20in%20water%20resources.docx