{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,22]],"date-time":"2026-06-22T18:19:30Z","timestamp":1782152370226,"version":"3.54.5"},"reference-count":38,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2021,2,11]],"date-time":"2021-02-11T00:00:00Z","timestamp":1613001600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100010661","name":"Horizon 2020","doi-asserted-by":"publisher","award":["654109, 778349, 871115"],"award-info":[{"award-number":["654109, 778349, 871115"]}],"id":[{"id":"10.13039\/100010661","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004837","name":"Ministerio de Ciencia e Innovaci\u00f3n","doi-asserted-by":"publisher","award":["PID2019-103886RB-I00, CGL2017-90884-REDT"],"award-info":[{"award-number":["PID2019-103886RB-I00, CGL2017-90884-REDT"]}],"id":[{"id":"10.13039\/501100004837","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100011033","name":"Agencia Estatal de Investigaci\u00f3n","doi-asserted-by":"publisher","award":["MDM-2016-0600"],"award-info":[{"award-number":["MDM-2016-0600"]}],"id":[{"id":"10.13039\/501100011033","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>This paper aims to quantify the improvement obtained with a purely rotational Raman (PRR) channel over a vibro-rotational Raman (VRR) channel, used in an aerosol lidar with elastic and Raman channels, in terms of signal-to-noise ratio (SNR), effective vertical resolution, and absolute and relative uncertainties associated to the retrieved aerosol optical (extinction and backscatter) coefficients. Measurements were made with the European Aerosol Research Lidar Network\/Universitat Polit\u00e8cnica de Catalunya (EARLINET\/UPC) multi-wavelength lidar system enabling a PRR channel at 353.9 nm, together with an already existing VRR (386.7 nm) and an elastic (354.7 nm) channels. Inversions were performed with the EARLINET Single Calculus Chain (SCC). When using PRR instead of VRR, the measurements show a gain in SNR of a factor 2.8 and about 7.6 for 3-h nighttime and daytime measurements, respectively. For 3-h nighttime (daytime) measurements the effective vertical resolution is reduced by 17% (20%), the absolute uncertainty (associated to the extinction) is divided by 2 (10) and the relative uncertainty is divided by 3 (7). During daytime, VRR extinction coefficient is retrieved in a limited height range (&lt;2.2 km) preventing the SCC from finding a suitable calibration range in the search height range. So the advantage of using PRR instead of VRR is particularly evidenced in daytime conditions. For nighttime measurements, decreasing the time resolution from 3 to 1 h has nearly no effect on the relative performances of PRR vs. VRR.<\/jats:p>","DOI":"10.3390\/s21041277","type":"journal-article","created":{"date-parts":[[2021,2,12]],"date-time":"2021-02-12T16:12:10Z","timestamp":1613146330000},"page":"1277","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["A Comparative Analysis of Aerosol Optical Coefficients and Their Associated Errors Retrieved from Pure-Rotational and Vibro-Rotational Raman Lidar Signals"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8823-5650","authenticated-orcid":false,"given":"Jos\u00e9 Alex","family":"Zenteno-Hern\u00e1ndez","sequence":"first","affiliation":[{"name":"CommSensLab, Deptment of Signal Theory and Communications, Universitat Polit\u00e8cnica de Catalunya (UPC), 08034 Barcelona, Spain"},{"name":"Instituto Nacional de Astrof\u00edsica, \u00d3ptica y Electr\u00f3nica (INAOE), 72840 Puebla, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6886-3679","authenticated-orcid":false,"given":"Adolfo","family":"Comer\u00f3n","sequence":"additional","affiliation":[{"name":"CommSensLab, Deptment of Signal Theory and Communications, Universitat Polit\u00e8cnica de Catalunya (UPC), 08034 Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9209-0685","authenticated-orcid":false,"given":"Alejandro","family":"Rodr\u00edguez-G\u00f3mez","sequence":"additional","affiliation":[{"name":"CommSensLab, Deptment of Signal Theory and Communications, Universitat Polit\u00e8cnica de Catalunya (UPC), 08034 Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6543-119X","authenticated-orcid":false,"given":"Constantino","family":"Mu\u00f1oz-Porcar","sequence":"additional","affiliation":[{"name":"CommSensLab, Deptment of Signal Theory and Communications, Universitat Polit\u00e8cnica de Catalunya (UPC), 08034 Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6627-2517","authenticated-orcid":false,"given":"Giuseppe","family":"D\u2019Amico","sequence":"additional","affiliation":[{"name":"Consiglio Nazionale delle Ricerche, Istituto di Metodologie per l\u2019Analisi Ambientale (CNR-IMAA), Tito Scalo, 85050 Potenza, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8287-9693","authenticated-orcid":false,"given":"Micha\u00ebl","family":"Sicard","sequence":"additional","affiliation":[{"name":"CommSensLab, Deptment of Signal Theory and Communications, Universitat Polit\u00e8cnica de Catalunya (UPC), 08034 Barcelona, Spain"},{"name":"Ci\u00e8ncies i Tecnologies de l\u2019Espai-Centre de Recerca de l\u2019Aeron\u00e0utica i de l\u2019Espai, Institut d\u2019Estudis Espacials de Catalunya (CTE-CRAE\/IEEC), Universitat Polit\u00e8cnica de Catalunya (UPC), 08034 Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,2,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Comer\u00f3n, A., Mu\u00f1oz-Porcar, C., Rocadenbosch, F., Rodr\u00edguez-G\u00f3mez, A., and Sicard, M. 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