Votes and proceedings of the General Assembly of the state of New-Jersey . I02 I03 I04 I05 Eddy Diffusion Coefficients (cm2/sec) lO6 F-15 OZONE VS. NOx EMISSION AT20 KM A Percent global ozone reduction as afunction of uniform NOx emissionstrength at 20 km as calculated byChana for six different K (z) pro-files37 The solid line gives Points are Included for2D and 3D models. B The same exceptNOx source Is at 17 km. O0F. Luui—LUU Uil_ Ol 02 I 2 4 6 O 20 40 100 H09kg/yf asNOj) NOx Source factors of about 3. although, as wenoted earlier, the NAS-NAE studypredicted about twi
Votes and proceedings of the General Assembly of the state of New-Jersey . I02 I03 I04 I05 Eddy Diffusion Coefficients (cm2/sec) lO6 F-15 OZONE VS. NOx EMISSION AT20 KM A Percent global ozone reduction as afunction of uniform NOx emissionstrength at 20 km as calculated byChana for six different K (z) pro-files37 The solid line gives Points are Included for2D and 3D models. B The same exceptNOx source Is at 17 km. O0F. Luui—LUU Uil_ Ol 02 I 2 4 6 O 20 40 100 H09kg/yf asNOj) NOx Source factors of about 3. although, as wenoted earlier, the NAS-NAE studypredicted about twice as much ozonereduction using Huntens model asCIAP. which used an average of severalmodels (see. for example, F-15). Wewish to emphasize, however, that theseuncertainty factors for the modelresults do not include potentially muchlarger uncertainties in the photo-chemistry. Uncertainties in laboratory-measured reaction rates commonly runa factor of two and more—an order ofmagnitude not being unusual for anestimated rate. Accordingly, linearsuperposition is inadmissible; and toassess the uncertainty in ozone-reduction estimates, model calculationshave to be made corresponding to eachindependent combination of upper andlower error bounds for each reactionrate in the set. For a system of n in-dependent elements (the reactionrates), each of which can exist in eitherof two states (the upper and lower errorbounds), the total number
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