ozone sensor for direct eddy flux measurements

A fast response sensor for ozone eddy-correlation flux …

01/01/1977· A FAST RESPONSE SENSOR FOR OZONE EDDY-CORRELATION FLUX MEASUREMENTS* J. A. EASTMAN and D. H. STEDMAN Department of Atmospheric and Oceanic Science, University of Michigan, Ann Arbor, Michigan 48109, (First received 12 July 1976 and in final form 10 May 1977) Abstracthe measurement of fluxes of gaseous pollutants to the ground may …

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A fast response sensor for ozone eddy-correlation flux measurements

A fast response sensor for ozone eddy-correlation flux measurements @article{Eastman1977AFR, title={A fast response sensor for ozone eddy-correlation flux measurements}, author={J. Eastman and D. Stedman}, journal={Atmospheric Environment}, year={1977}, volume={11}, pages={1209-1211} } J. Eastman, D. Stedman; Published 1977; Environmental Science; Atmospheric Environment; Abstract …

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Simultaneous Detection of Ozone and Nitrogen Dioxide by …

Response Sensor Suitable for Eddy Covariance Measurements Gordon A. Novak, Michael P. Vermeuel, Timothy H. Bertram 5 Department of Chemistry, University of Wisconsin – Madison, Madison, WI, USA Correspondence to: Timothy H. Bertram (@) Abstract. We report on the development, characterization, and field deployment of a fast time response sensor for measuring …

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Measurements of the air-sea flux of ozone from the Ronald H. …

This fast response sensor operates on the chemiluminescence principle and, when combined with sonic anemometer vertically velocity, is used to estimate the ozone flux over the ocean by direct eddy correlation. The preliminary results show a median value for the ozone deposition in the SOGasEx region of about cm/s. We will present results from the various deployments of the system, but we will …

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A fast and precise chemiluminescence ozone detector for eddy flux …

A fast and precise chemiluminescence ozone detector for eddy flux and airborne application . A. Zahn et al. Related subject area . Subject: Gases | Technique: In Situ Measurement | Topic: Instruments and Platforms. Understanding balloon-borne frost point hygrometer measurements after contamination by mixed-phase clouds. Teresa Jorge, Simone Brunamonti, Yann Poltera, Frank G. Wienhold, Bei P. …

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A Chemiluminescent Analyzer for Stratospheric Measurements of the Ozone ...

01/10/1999· Sensitivity measurements for different sensors indicated that, within an ozone concentration range of 10–1500 ppb, the sensitivity of coumarin 47–based sensors remained constant, while that of rodamin B–based sensors increased from 10 to 80 ppb, subsequently remaining constant. For sensors using coumarin 30 an increase in sensitivity was detected in the 10–60-ppb range. Thus, …

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Ship-borne Ozone Flux Measurements during Southern Ocean GasEx …

This sensor, based on the chemiluminescence principle, combined with other turbulence instrumentation, is used to measure the air-sea flux of ozone by direct eddy correlation. This instrument has been previously deployed on 2006-07 cruises in the Gulf of Mexico (TexAQS / GOMECC) and in the Eastern Pacific Ocean (Stratus). Here, we present the measurement technique and recent progress made in …

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Eddy covariance emission and deposition flux measurements

VOC deposition is particularly uncertain due to a lack of direct flux measurements, yet 5 this loss process has been inferred to dominate the removal of VOC from the atmo-sphere (Hallquist et al., 2009). Recently, Karl et al. (2010) and Tani et al. (2010) have reported that some oxygenated VOC (OVOC), either directly emitted or formed from VOC oxidation in the atmosphere, are measurably deposited to …

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A novel ozone sensor for direct eddy flux measurements | …

13/05/2004· A small, lightweight ( kg) and fast-response ozone sensor for direct eddy flux measurements has been built. The basis for detection is the chemiluminescence of an organic dye adsorbed on dry silica gel in the reaction with ozone. The chemiluminescence is monitored with a cheap and small blue-sensitive photomultiplier. At a flow rate of 100 l min-1 the ozone sensor has a 90% …

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Ship-borne Ozone Flux Measurements during TexAQS 2006

29/05/2007· This sensor, based on the chemiluminescence principle, is used to measure the ozone flux over the ocean by direct eddy correlation (EC). The study area of the Gulf of Mexico represents an interesting data set for both ocean and land footprints. This poster presents the technique used to do ozone flux measurements, and the recent progress made ...

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New Ozone Measurement Systems for Autonomous Operation …

01/07/2004· In an upcoming study of ozone deposition flux to the ocean surface, one of the ozone systems will serve to calibrate the signal from a fast ozone sensor for eddy correlation flux measurements to the coastal ocean. We are also developing a low-power CO instrument [from FIS Inc., Itami, Japan: Ohta et al. (1999)] for use on buoys. The combination ...

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O3DEST | Earth Observing Laboratory

The Ozone Destruction Flux Experiment (O3DEST) utilized the QueenAir, A-80 aircraft to make direct eddy flux measurements of ozone with fast response ozone sensors. The measurements were used in two ways: first, as a tracer in the study of boundary layer dynamics and, secondly, to investigate the sources and sinks of ozone in the boundary layer. Project support was divided into two phases. …

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A novel ozone sensor for direct eddy flux measurements - …

01/04/1992· A small fast-response ozone sensor for direct eddy-flux measurements is built. The basis for detection is the chemiluminescence of an organic dye adsorbed on dry silica gel in the reaction with ozone. The chemiluminescence is monitored with a blue-sensitive photomultiplier. At a flow rate of 100 l/min the ozone sensor has a 90 percent response time of significantly better than s with a …

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A novel ozone sensor for direct eddy flux measurements | …

A small, lightweight ( kg) and fast-response ozone sensor for direct eddy flux measurements has been built. The basis for detection is the chemiluminescence of an organic dye adsorbed on dry silica gel in the reaction with ozone. The chemiluminescence is monitored with a cheap and small blue-sensitive photomultiplier. At a flow rate of 100 l min-1 the ozone sensor has a 90% response time of …

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