Remote Sensing and Geographic Information System in Development.

Abstract

Remote sensing covers camera remote sensing (CRS) which generally means the acquisition of images in the visible and near infrared spectra using photographic camera and digital camera. The camera can be borne by either aircraft or spacecraft and they are both usually manned. Camera Remote Sensing is commonly referred to as Photogrammetry; satellite remote sensing (SRS) in which the sensor is mounted on satellite (a space platform that is un-manned). The sensor system is limited to the visible and infrared regions of the electromagnetic spectrum (EMS); radar remote sensing (RRS) also has its sensor mounted on satellite but the sensor system operates only within the microwave portion of the EMS; and natural remote sensing (NRS). This concerns the human vision system in which the eye is used to view an image object on temporary basis using the eye­ optic-nerve-brain combination. Other forms of natural sensing are those of sound with the aid of the ear; smell with the aid of the nose; feel with the aid of body or skin; and taste with the aid of the tongue. Based on the above, it becomes a lot easy for the reader of this book to appreciate or at least have a feel of the closeness the rather universal way in which remote sensing technology can be a tool of investigation in their chosen field of endeavour.