16168 9 88826 2 255563 document 88826 Sample size analyis_Chen Zhang Borken_EST manuscript_09212019.pdf application/pdf 40eedfe9b8cdb5a730e8c404c5be1a75 MD5 671991 2019-11-18 08:05:52 https://pure.iiasa.ac.at/id/eprint/16168/1/Sample%20size%20analyis_Chen%20Zhang%20Borken_EST%20manuscript_09212019.pdf 16168 1 1 application/pdf text en public cc_by_nc_4

Sample size analyis_Chen Zhang Borken_EST manuscript_09212019.pdf

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/88826 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/88826 http://eprints.org/relation/ismediumThumbnailVersionOf https://pure.iiasa.ac.at/id/document/88826 88831 2 255574 document 88831 small.jpg image/png 383be72e38d62275f13d9a9e891c3c34 MD5 1324 2019-11-18 08:16:07 https://pure.iiasa.ac.at/id/eprint/16168/6/small.jpg 16168 6 6 image/png other Thumbnails conversion from text to thumbnail_small en public

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/88826 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/88826 http://eprints.org/relation/issmallThumbnailVersionOf https://pure.iiasa.ac.at/id/document/88826 archive 353 disk0/00/01/61/68 2019-11-18 08:06:52 2021-08-27 17:32:22 2019-11-18 08:06:52 article show Chen Y. Zhang Y. Borken-Kleefeld J. 1888 0000-0002-5465-8559 pub prog_air The power of remote vehicle emission sensing stems from the big sample size obtained and its related statistical representativeness for the measured emission rates. But how many records are needed for a representative measurement and when does the information gain per record become insignificant? We use Monte Carlo simulations to determine the relationship between the sample size and the accuracy of the sample mean and variance. We take the example of NO emissions from diesel cars measured by remote emission monitors between 2011 and 2018 at various locations in Europe. We find that no more than 200 remote sensing records are sufficient to approximate the mean emission rate for Euro 4, 5, and 6a/b diesel cars with 80% certainty within a ±1 g NO per kg fuel tolerance margin (∼±50 mg NO per km). Between 300 and 800 remote sensing records are needed to approximate also the variance of the mean NO emission rates for those diesel car technologies. This translates to only 2 and up to 9 measurement days to characterize the means and their variance for a car fleet typical in Europe. 2019-10-18 published American Chemical Society (ACS) 10.1021/acs.est.9b04123 36 public Environmental Science & Technology 53 22 13284-13292 TRUE 1520-5851 FALSE no info:eu-repo/semantics/article