A Workshop on “Remote Sensing – Satellite Data” tookplace in Bursa

Theworkshop on “Remote Sensing – Satellite Data in theSustainibility of HealthyCities” tookplace in Bursa. At theworkshopthatlastedfor 2 daysandwhich 70 peopleattendedfromtheassociatemunicipalities; Prof.Dr. Ünal ALTINBAŞ, RetiredAcademicMember of Ege UniversityandMember of AdvisoryCommittee of HealthyCitiesAssociationand Dr. Fulsen Özen fromEge UniversityRemote SensingandGeographical Information System EBILTEM (Ege UniversityScience-Technology Application andResearchCentre)SatelliteLaboratorysharedtheirfund of knowledgewiththeattendees.

At thefirstday of theworkshop, after theopeningandwelcomespeeches, Prof. Dr. Ünal Altınbaşmadehispresentationstitled“Remote SensingandIts Main Principles” and “Earth ResourcesObservationSatellites”.

Within his presentationMr. Altınbaş statedthat “The Remote Sensing (Fernerkundung) techniqueorsatellitedata is baseduponobtainingtheelectromagneticenergyoscillatingorreflectingfromearthto be detectedviacertainsatellitesplacedintosettledorbitsdeepdown in spacebydetectorsorsensors, andinterpretingthese data in computerenvironment. Bythis modern technique, it is possibletoobtainnearerreal-time results in a shorterspan of time, and it becomeseasiertorevealallthenaturalandculturalelementsproperly, as well.”

At his presentationtitled“Earth ResourcesObservationSatellites” at thesecondsession, Prof. Dr. Ünal Altınbaş indicated “Earth’snaturalresourcesaredefined as land, water, biodiversity, mineralsandair. Basically, it is definingtheboundaries of naturalandculturalresources on a local, watershedorregionalbasisandin advancedstages in terms of a countryoruniversally in ordertodesignandmanagetheearth on itsbiogeophysicalaspectforthepurposes of usingandpreventingcontinouslyandsustainably, andthusproducingdifferentialmapsaccordingtointendedpurpose of use. Thefactthattoday’stechnologicaldevelopments, and in thiscontextthetechnique of Remote Sensing (Fernerkundung) orsatellitedataattained a vastfield of application, enormouslyaccelerateandredoundmotiontoresearches of earthresources, in ordertoreachthisgoal.Byremotesensingtechnique, variousinformationis obtainedon a wideopenspaceand in a veryshortspan of time. Bymeans of thistechnique, it is possibletodesignatethequalitiveandquantitiveparticularities of naturalandculturalresources.”

Afterthepresentations, the program of thefirstdaywasclosedby avisitto Ulucami (Mosque) and atechnicalvisittoRegion of Hanlar.

At thesecondday of theworkshop, Dr. Fulsen Özen made a presentationtitled “Stages of ProcessingSatelliteImages in Remote SensingTechnique”.

AccordingtotheinformationMs. Özen relayed, an image is not a photographimprinted on a film by a camera. Almostall of thecommercialsatellites of remotesensingacquiretheimages in digital format viatheirsensors. Thesesensorswok in similarprinciples of thedigitalcameraswhichhavebecome popular ratherrecently.

Justlike a digitalcamera, a sensordoes not have a film. Instead, thesensorconsists of thousands of smalldetectorswhichquantifytheamount of electromagneticenergyreflectingfromtheearthandfromtheobjects on surface of it. Thesearecalled as spectral (bandwidth) measurments. Eachspectralreflexvalue is recorded as a digitalnumber. Sent backto Earth, thesenumbersaretransformedinto an imagebycomputerswhichwilllooklike a photograph, adjustedaccordingtothecoloursandbrightnesslevels in grayscale.

Ms. Özen said: “Dependinguponthesensitivity of thedetectors, sensorsarecapable of measuringtheenergyreflected; in categories of visible, nearinfrared, short-waveinfrared, thermalinfraredandmicrowave radar.”

At thelastsession of theworkshop, Prof. Dr. Ünal Altınbaş made his presentationthemed as “SomeExamplesfromAegeanRegion on Areas of Usage of Remote Sensing” totheparticipants.

Mr. Altınbaş indicatedthattheroot of remotesensingsystemlies in measuring, digitizingandinterpretingthedigitalimages of theelementsexposedovertheearth, alongwiththeinformation on theirenvironmentdetectedfromcertaindistanceswithoutinterruptingphysically. It is thethermalenergyreflectedfromthesurfaces of differentialobjectswhichcomeintoview of thedetectordeepdown in spaceoroscillatedfromtheearthbeingdetectedandrecordedbysatellites. He informedtheattendeesbygivingexamplesfromtheAegeanRegionandstatingthat in ordertoreachthegoal here, tocomputerize -primarilywithinthecontext of producingdigitalbasemapsforrectifications of – thesatelliteimagesbymeans of thearealandpointcoordinatedatatakenfromthe 1:25.000 scaleand 3D (Depth, Width, Height) topographicmaps, theelementssuch as theelevationfromthesealevel, roads, urban andruralsettlementsandtheirboundaries, rivers, lakes, dams, coastalareas, detailedroadsetc. viacertain software programmesutilizing  an AO size digitizer.

Theworkshopendedwiththepresentations of certificates of participationtothespeakersandattendeesfortheircontributions.