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Ankie Piters, Marc Allaart, Wesley Sluis, Wytze Lenstra, KNMI

Ankie Piters, Marc Allaart, Wesley Sluis, Wytze Lenstra, KNMI. Royal Netherlands Meteorological Institute Ministry of Infrastructure and Environment. An update on the NO 2 sonde. ESA’s Innovation Triangle Innitiative.

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Ankie Piters, Marc Allaart, Wesley Sluis, Wytze Lenstra, KNMI

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  1. Ankie Piters, Marc Allaart, Wesley Sluis, Wytze Lenstra, KNMI Royal Netherlands Meteorological Institute Ministry of Infrastructure and Environment An update on the NO2 sonde

  2. ESA’s Innovation Triangle Innitiative “Programme to foster the introduction of breakthrough innovations and technologies for space applications. “ Purpose is to make the NO2 sonde ready for serial production: improve the calibration procedure improve the design transfer the knowledge to industry Cooperation with GRAW radiosondes to produce the sonde Duration of this project: 15 months External reviewer/advisor: Michel Van Roozendael, BIRA Aim: user evaluation model end 2013, GRAW product end 2015

  3. MAXDOAS retrievals 25 June NO2 sonde 25 June Picture from Folkard Wittrock, IUPB

  4. What happened after CINDI?

  5. DISCOVER-AQ campaign 2011, USA profile measured during aircraft descend, 20 July NO2 sondeCRDS aircraft and tethered balloon measurements thanks to: Russ Dickerson (UMD) and Richard Clark (Millersville Univ)

  6. PEGASOS campaign May 2012, Netherlands Zeppelin Weather balloon 2 MAX-DOAS-ses NOx analyser Marc and Ankie with 2 sondes

  7. On-ground comparisons with NOx analyser (BLC) side-by-side measurement ~500 m distance RIVM NOx analyserNO2 sonde1 min. average of NO2 sonde data: Lou Gast, RIVM Sensitivity of luminol increases with time  bottle #2 bottle #1 #3

  8. 1200 m • AQ model (H. Elbern, Univ. Cologne) 500 m 0 m 27-5-2012 6:00 8:30 9:45 7:00

  9. Comparing with models model data: Henk Eskes and Patricia Castellanos, KNMI

  10. 24h backtracjectory 7 Dec, 8:00 UT, 1km NO2 above BL6 Dec, 15:00 UT NO2 profiles along trajectorie

  11. Next steps What determines/affects sensitivity? Optimise design Optimise calibration procedure Transfer knowledge to GRAW radiosondes And also: Analyse DISCOVER-AQ and PEGASOS data Demonstrate the use for: Model evaluation MAX-DOAS interpretation Satellite validation

  12. Chasing the sondes during PEGASOS

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