Usingremote sensingdatadue to providingupdated information, cover repetitive, low-cost assessmentofnatural resourceshave aspecial place.Alsochange detectionin themanagementand evaluationof natural resourcesisone of thebasic needs.Thusthe value ofchange of land use/land cover (LULC)istheresult of the changedetectionprocesscan obtain onmulti-temporal remote sensingimages.Therefore, inthisstudy, both of the Landsat satellite images 8 (OLI&TIRS) the year 2013 and 7(ETM+) the year 2000 were used as input dataforland cover/use mappinglevel1 and 2.In the meantime, becauseof the newimagesOLI,radiometriccorrectionswasformulation with existingequation with using inErdas software model maker.also from Normalize Difference Vegetation Index (NDVI), Bare Soil Index (BI) and three main components from Principal Component Analyze (PCA) as inputalongside otherbandswere usedto increase theaccuracy ofclassification. The polynomial 5 degree from SVM method compared withartificial neural network(ANN)andmaximumlikelihoodclassification (MLC).Resultsshowed thatsupport vector machine method using Polynomialkerneland degree5 (accuracy 92%) gives overall accuracyhigher than artificialneural network method (accuracy 89% ) andmaximum likelihood method(accuracy 91.8%) .Also SVMmethodshowsbetterperformance whereclassesexhibitsimilarspectral behavior.Post classificationmethod used fordetectchangesin the timeframeof 13years. The resultsshowlargechanges in (LULC) was occurred thus needmonitoring andproper managementis needed for this watershed.
Rezaei Moghadam M H, Andaryani S, Valizadeh Kamran K, Almaspor F. determine the best algorithm for land use and land cover extraction and changes detecting from Landsat satellite images(Case Study: Sufi chay Basin of Maragheh). جغرافیایی 2016; 16 (55) :65-85 URL: http://geographical-space.iau-ahar.ac.ir/article-1-802-en.html