文档介绍：SurveyorreconnaissancesurveyThesemaybeconvenientlydividedintothreecategories:aerialsurveys,surfacesurveys,,oraerialreconnaissanceItinvolvestheuseofvarioustypesofaircraftorsatellitetocreateimagesofthelandwhicharetheninterpretedforarchaeologicalinformation.●Shadowsites.●Soilmarks.●-lostarchaeologicalsiterevealedbydarkcropmarksOtherformsofimagingtechnology▲Thermography(温度记录仪).▲Sideways-lookingairborneradar(SLAR机载侧视雷达).▲TheLANDSATsatellite(地球资源探测卫星).(cornfield,northwestFlorida).