Fill in the Blanks Imaging Systems and PlatformsOnline version Check TASK 2. Short Overview of Imaging Systems and Platforms. Fill in the missing information. by Ritva Ala-Louko 1 quantity space resolution coverage multiple atmosphere measurement emitted borne supporting athmospheric estimation quality radiation measurements 1 . The advantages of Remote Sensing are , for example , repeated reliable , global and access . 2 . The disadvantages of Remote Sensing include a historically low , conditions ( clouds , haze , precipitation ) , timeliness and the fact that it is still expensive . 3 . Optical sensors ( passive ) are good for , e . g . vegetation condition , land use mapping or 3D image application . 4 . Microwave sensors ( active ) are good for , e . g . topographic maps , topographical deformation extraction or flood monitoring . 5 . Active remote sensing instruments send out a signal of at a particular wavelength . 6 . Passive remote sensing instruments either use the Sun as the source of radiation or they use radiation by the Earth ? s surface or . 7 . An imagery collection system is a combination of an imaging sensor and a collection platform . 8 . Collection platforms are - , aerial and hand - held . 9 . A collection platform may carry sensors .
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