A new airborne laser-induced fluorescence instrument for in situ detection of formaldehyde throughout the troposphere and lower stratosphere
| dc.contributor.author | Cazorla, M. | |
| dc.contributor.author | Wolfe, Glenn | |
| dc.contributor.author | Bailey, S. A. | |
| dc.contributor.author | Swanson, A. K. | |
| dc.contributor.author | Arkinson, H. L. | |
| dc.contributor.author | Hanisco, T. F. | |
| dc.date.accessioned | 2020-09-16T17:40:07Z | |
| dc.date.available | 2020-09-16T17:40:07Z | |
| dc.date.issued | 2015-02-03 | |
| dc.description.abstract | The NASA In Situ Airborne Formaldehyde (ISAF) instrument is a high-performance laser-based detector for gas-phase formaldehyde (HCHO). ISAF uses rotational-state specific laser excitation at 353 nm for laser-induced fluorescence (LIF) detection of HCHO. A number of features make ISAF ideal for airborne deployment, including (1) a compact, low-maintenance fiber laser, (2) a single-pass design for stable signal response, (3) a straightforward inlet design, and (4) a stand-alone data acquisition system. A full description of the instrument design is given, along with detailed performance characteristics. The accuracy of reported mixing ratios is ±10% based on calibration against IR and UV absorption of a primary HCHO standard. Precision at 1 Hz is typically better than 20% above 100 pptv, with uncertainty in the signal background contributing most to variability at low mixing ratios. The 1 Hz detection limit for a signal / noise ratio of 2 is 36 pptv for 10 mW of laser power, and the e fold time response at typical sample flow rates is 0.19 s. ISAF has already flown on several field missions and platforms with excellent results. | en_US |
| dc.description.sponsorship | This research was funded by the Goddard Internal Research and Development (IRAD) program and the NASA ROSES grant NNH10ZDA001N-SEAC4RS. The NASA Postdoctoral Program provided funding for M. Cazorla. | en_US |
| dc.description.uri | https://amt.copernicus.org/articles/8/541/2015/ | en_US |
| dc.format.extent | 12 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.identifier | doi:10.13016/m2gd4y-87os | |
| dc.identifier.citation | Cazorla, M., Wolfe, G. M., Bailey, S. A., Swanson, A. K., Arkinson, H. L., and Hanisco, T. F.: A new airborne laser-induced fluorescence instrument for in situ detection of formaldehyde throughout the troposphere and lower stratosphere, Atmos. Meas. Tech., 8, 541–552, https://doi.org/10.5194/amt-8-541-2015, 2015. | en_US |
| dc.identifier.uri | https://doi.org/10.5194/amt-8-541-2015 | |
| dc.identifier.uri | http://hdl.handle.net/11603/19664 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Copernicus | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Joint Center for Earth Systems Technology | |
| dc.relation.ispartof | UMBC Physics Department | |
| dc.relation.ispartof | UMBC Faculty Collection | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.rights | Public Domain Mark 1.0 | * |
| dc.rights | This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. | |
| dc.rights.uri | http://creativecommons.org/publicdomain/mark/1.0/ | * |
| dc.title | A new airborne laser-induced fluorescence instrument for in situ detection of formaldehyde throughout the troposphere and lower stratosphere | en_US |
| dc.type | Text | en_US |