?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=https%3A%2F%2Fpure.iiasa.ac.at%2Fid%2Feprint%2F4897%2F&rft.title=Fuzzy+Rule+Generation+from+the+EMEP+Ozone+Model+to+Examine+Source-Receptor+Relations&rft.creator=Ryoke%2C+M.&rft.description=The+objective+of+this+paper+is+to+describe+research+on+the+development+of+a+simplified+version+of+the+European+ozone+model+using+fuzzy+rule+generation+methodology.+The+ozone+model+is+used+to+predict+tropospheric+(at+the+ground+level)+ozone+concentration.+The+simplified+ozone+model+illustrates+source-receptor+relationships+between+ozone+precursor+emissions+(NOx+and+VOCs)+and+ozone+concentration+in+the+troposphere%2C+taking+into+account+meteorological+conditions.+This+ozone+model+was+developed+by+the+Cooperative+Programme+for+Monitoring+and+Evaluation+of+Long-Range+Air+Pollutants+in+Europe+(EMEP).+The+EMEP+model+provides+a+detailed+prediction+of+ozone+concentration+at+every+grid+in+Europe+by+taking+into+account+physical+and+chemical+mechanisms.+However%2C+the+model+is+too+complicated+for+nonspecialists%2C+such+as+policymakers+trying+to+set+emission+reduction+levels+that+result+in+ozone+concentrations+below+given+limits.+Therefore%2C+there+is+a+need+for+a+simplified+ozone+model+that+can+be+verified+by+the+EMEP+model+and+that+can+be+used+for+analyzing+policy+options.+%0D%0A%0D%0AOne+approach+is+to+use+the+fuzzy+rule+generation+methodology.+In+this+approach%2C+the+simplified+model+consists+of+a+number+of+fuzzy+rules.+Fuzzy+rules+have+a+fuzzy+proposition+in+the+conditional+statement+and+a+linear+regression+model+in+the+conclusion.+The+rules+describe+a+complete+nonlinear+system+by+using+several+linear+models+and+membership+functions.+The+development+of+such+fuzzy+rules+is+called+fuzzy+modeling.+The+membership+functions+of+conditional+variables+are+determined+by+the+subset+of+data+which+is+obtained+by+a+clustering+method.+The+degree+of+confidence+of+a+rule+is+determined+by+the+grade+of+the+membership+functions+for+input+values.+The+role+of+fuzzy+logic+is+to+integrate+fuzzy+rules+smoothly.+%0D%0A%0D%0AIn+this+paper%2C+a+basic+scenario%2C+which+predicts+no+reduction+of+ozone+precursor+emissions%2C+is+used+to+determine+fuzzy+rules%2C+subsequent+scenarios+are+derived+from+the+basic+scenario%2C+which+includes+information+on+source-receptor+relationships.+Simplified+models+of+three+grids+have+been+developed+to+show+the+effectiveness+of+this+approach.+This+methodology+can+be+used+to+develop+models+of+all+grids.&rft.publisher=WP-96-130&rft.date=1996-11&rft.type=Monograph&rft.type=NonPeerReviewed&rft.format=text&rft.language=en&rft.identifier=https%3A%2F%2Fpure.iiasa.ac.at%2Fid%2Feprint%2F4897%2F1%2FWP-96-130.pdf&rft.identifier=++Ryoke%2C+M.+%3Chttps%3A%2F%2Fpure.iiasa.ac.at%2Fview%2Fiiasa%2F1545.html%3E++(1996).++Fuzzy+Rule+Generation+from+the+EMEP+Ozone+Model+to+Examine+Source-Receptor+Relations.+++IIASA+Working+Paper.+IIASA%2C+Laxenburg%2C+Austria%3A+WP-96-130+++++