This is a rectified mosaic of the individual tiles obtained from FDOT. The mosaic includes areas of Polk and Hillsborough counties where phosphate mining occurred or may occur in the future. The aerial imagery was rectified in ERDAS IMAGINE software using Autosync. The goals for rectification of each individual tile used from the FDOT included 40 control points and a RMS less than 20 pixels (pixel = 1 meter x 1 meter). RMS only measures the error against the projected image that was used as a reference during rectification. The reference image used was the 1970's SWFWMD Aerial Photography. Points not included as control points may have a larger error. The rectified tiles where then compiled into a mosaic using Mosaic Pro within ERDAS IMAGINE.

This is a rectified mosaic of the individual tiles obtained from FDOT. The mosaic includes areas of Polk and Hillsborough counties where phosphate mining occurred or may occur in the future. The aerial imagery was rectified in ERDAS IMAGINE software using Autosync. The goals for rectification of each individual tile used from the FDOT included 40 control points and a RMS less than 20 pixels (pixel = 1 meter x 1 meter). RMS only measures the error against the projected image that was used as a reference during rectification. The reference image used was the 1970's SWFWMD Aerial Photography. Points not included as control points may have a larger error. The rectified tiles where then compiled into a mosaic using Mosaic Pro within ERDAS IMAGINE.