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- 9044c133-fbd1-440c-abd9-eccc8c0fa72c definition "NASA Compact Airborne Formaldehyde Experiment (CAFE) is a nonresonant laser-induced fluorescence instrument for airborne in situ measurement of formaldehyde (HCHO). The instrument is described here with highlighted improvements from the predecessor instrument, COmpact Formaldehyde FluorescencE Experiment (COFFEE). CAFE uses a 480 mW, 80 kHz laser at 355 nm to excite HCHO and detects the resulting fluorescence in the 420–550 nm range. The fluorescence is acquired at 5 ns resolution for 500 ns and the unique time profile of the HCHO fluorescence provides measurement selectivity. CAFE achieves a 1σ precision of 160 pptv (1 s) and 90 pptv (10 s) for [HCHO] = 0 pptv. The accuracy of CAFE, using its curve-fitting data processing, is estimated as ±20 % of [HCHO] + 100 pptv. CAFE has successfully flown on multiple aircraft platforms and is particularly well-suited to high-altitude research aircraft or small air quality research aircraft where high sensitivity is required but operator interaction and instrument payload is limited." @default.
- 9044c133-fbd1-440c-abd9-eccc8c0fa72c id "1655952" @default.
- 9044c133-fbd1-440c-abd9-eccc8c0fa72c path_id 3d25724b-832f-4a61-b0b2-4f2ccecdba94 @default.
- 9044c133-fbd1-440c-abd9-eccc8c0fa72c path_id b2140059-b3ca-415c-b0a7-3e142783ffe8 @default.
- 9044c133-fbd1-440c-abd9-eccc8c0fa72c path_id ff564c87-78f2-47eb-a857-a4bdc0a71ae5 @default.
- 9044c133-fbd1-440c-abd9-eccc8c0fa72c path_label "Chemical Meters/Analyzers" @default.
- 9044c133-fbd1-440c-abd9-eccc8c0fa72c path_label "In Situ/Laboratory Instruments" @default.
- 9044c133-fbd1-440c-abd9-eccc8c0fa72c path_label "Instruments" @default.
- 9044c133-fbd1-440c-abd9-eccc8c0fa72c prefLabel "CAFE" @default.
- 9044c133-fbd1-440c-abd9-eccc8c0fa72c reference "Jason M. St. Clair1,2, Andrew K. Swanson1,3, Steven A. Bailey1, and Thomas F. Hanisco1 1Atmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, 20771, USA 2Joint Center for Earth Systems Technology, University of Maryland Baltimore County, Baltimore, MD, 21228, USA 3Goddard Earth Sciences Technology and Research, Universities Space Research Association, Columbia, MD, 21046, USA https://amt.copernicus.org/articles/12/4581/2019/" @default.
- 9044c133-fbd1-440c-abd9-eccc8c0fa72c tag "Instruments" @default.