TCCON/IRWG Meeting, Toronto, June 8-12, 2015 Reunion Island Site Report Bavo Langerock, Christian Hermans, Nicolas Kumps, Francis Scolas, Corinne Vigouroux,

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Presentation transcript:

TCCON/IRWG Meeting, Toronto, June 8-12, 2015 Reunion Island Site Report Bavo Langerock, Christian Hermans, Nicolas Kumps, Francis Scolas, Corinne Vigouroux, Filip Desmet, Martine De Mazière Belgian Institute for Space Aeronomy Jean-Marc Metzger, Jean-Pierre Cammas Université de la Réunion

St. Denis University of St. Denis (85 m) Bruker 125/HR CaF 2 Beamsplitter & optics Home-built tracker & electronics Since September 2011 TCCON (InGaAs and Si) NDACC (InSb)

St. Denis: Events Since Last Meeting Early January 2014: Cyclone Bejisa March – April 2014: Nonoperational: (Virtual) roofing works October 2014: Change of solar tracker setup (removing O-ring) No more NDACC measurements since October 2013 for budgetary reasons >>> Maïdo is now our principal NDACC station

St. Denis: ILS – HCl Cell (linefit 12) Frequency [cm -1 ] Modulation efficiency as a function of time between mid-2014 and mid

St. Denis: ILS – HCl Cell Frequency [cm -1 ] Phase error [rad] as a function of time between mid-2014 and mid

Piton Maïdo Maïdo Observatory (2200 m) Bruker 125/HR KBr Beamsplitter & optics Home-built tracker & electronics Since March 2013 NDACC (InSb and HgCdTe) TCCON (InGaAs)

Maïdo: Events Since Last Meeting Mid August 2013: Failure of the tracker elevation stage Early October 2013: Site visit: repaired the tracker Also fixed a problem with a moving mirror in the detector compartment (Mirror which selects between InSb and HgCdTe) January 2014: It took about a month to get going again after cyclone Bejisa >>> Power lines to the observatory had been damaged September 2014: Laser replacement January 2015: re-alignment March 2015: SNR drop in spectra Cyclone Bejisa Tracker failure Laser failure LN2 shortage sudden misalignment electronics failure

Degrading mirrors Even worse at St Denis : dSNR/dt ~ -2.9/day!

Maïdo: ILS – HBr Cell (linefit 12) Frequency [cm -1 ] Modulation efficiency as a function of time between mid-2014 and mid-2015 Hbr Cell: #50 of the 2011 series Instrument re-alignment

Maïdo: ILS – HBr Cell Frequency [cm -1 ] Phase Error [rad] as a function of time between mid-2014 and mid-2015 Frequency [cm -1 ] Instrument re-alignment

Outlook: Reunion TCCON data calibration In-situ calibration with an AirCore Aircore coupled to a homing parafoil system or to a gliding wing >>> June 18-25: test-flights in Sodankylä >>> Sept 2014 – May 2015: Flight over Reunion Partners: >>> Huilin Chen at Rijksuniversiteit Groningen >>> Reev River Aerospace (Galati, Romania) >>> at Sodankylä: with the support of Rigel Kivi, Pauli Heikkinen BRAIN-be pioneering project (Belgian Science Policy Office)

Outlook: Brasil New site: In the Amazon forest in Brasil Porto Velho Should be operational within a few months Bruker 125M (upgraded St. Denis 120M) CaF 2 with InGaAs and InSb Or KBr with InSb and HgCdTe >>> See poster... Manaus Porto Velho

The location of Xinglong Beijing Xinglong (40 º23’N 117º35’E; ASL 960m) Year 2014: a Bruker 125M was installed at Xinglong Year 2015: a Bruker 125HR was ordered  goal is to join TCCON in the future) Outlook: collaboration with IAP (CAS) in China Bruker 125M: CaF 2 Beamsplitter & optics Sensor : InGaAs The observations started from Future Bruker 125HR: CaF 2 Beamsplitter & optics Sensor : InGaAs and Si

Publications in 2014 – June 2015 Buchwitz, M., et al., The Greenhouse Gas Climate Change Initiative (GHG- CCI): comparison and quality assessment of near-surface-sensitive satellite-derived CO2 and CH4 global data sets, Remote Sensing of Environment, 162, , Dammers, E., C. Vigouroux, et al., acp , Submitted on 01 Jun De Smedt, I., et al., Diurnal, seasonal and long-term variations of global formaldehyde columns inferred from combined OMI and GOME-2 observations, Atmos. Chem. Phys. Discuss., 15, , doi: /acpd , Dils, B., et al., The Greenhouse Gas Climate Change Initiative (GHG-CCI): comparative validation of GHG-CCI SCIAMACHY/ENVISAT and TANSO- FTS/GOSAT CO2 and CH4 retrieval algorithm products with measurements from the TCCON, Atmos. Meas. Tech., 7, 1723–1744, doi: /amt , 2014

Duflot, V., et al., Acetylene (C2H2) and hydrogen cyanide (HCN) from IASI satellite observations: global distributions, validation, and comparison with model, Atmos. Chem. Phys. Discuss., 15, , doi: /acpd , Harris et al.,: Past changes in the vertical distribution of ozone – Part 3: Analysis and interpretation of trends, Atmos. Chem. Phys. Discuss., 15, , 2015, doi: /acpd , Hassler, B., et al.: Past changes in the vertical distribution of ozone – Part 1: Measurement techniques, uncertainties and availability, Atmos. Meas. Tech., 7, , doi: /amt , Inness, A., et al., Data assimilation of satellite retrieved ozone, carbon monoxide and nitrogen dioxide with ECMWF's Composition-IFS, Atmos. Chem. Phys. Discuss., 15, , doi: /acpd , Publications in 2014 – June 2015

Langerock, B., et al., Description of algorithms for co-locating and comparing gridded model data with remote-sensing observations, Geosci. Model Dev., 8, doi: /gmd , Stavrakou, T., et al., How consistent are top-down hydrocarbon emissions based on formaldehyde observations from GOME-2 and OMI?, Atmos. Chem. Phys. Discuss., 15, , doi: /acpd , Vigouroux, C., et al., Trends of ozone total columns and vertical distribution from FTIR observations at eight NDACC stations around the globe, Atmos. Chem. Phys., 15, , doi: /acp , Publications in 2014 – June 2015

● Limited institute funding ; decreases ● PRODEX funding stopped since beginning of 2014 ● National AGACC-II project funded until end of ● UAV_Reunion (national project) (Oct March 2016) ● National support for initiating implementation of an FTIR observatory in Brazil (Oct – July 2016 ) ● EU FP7 project NORS until end Nov. 2014; limited continuation for BIRA until April ● Subcontractor in EU FP7 InGOS and ICOS_Inwire (ending) ● Limited support from EU ACTRIS RI project until March ● EU H2020 QA4ECV & GAIA-CLIM & ConnectinGEO very limited support for ● Limited support from EU Copernicus MACC-III (until mid-2015) ● Limited support from ESA GHG-CCI (until end of Feb. 2017) Funding situation / projects

Team Members Team: C. Hermans, B. Langerock, C. Vigouroux, M. Sha (F. Desmet), N. Kumps, M. De Mazière Support by O. Rasson from the IT team at BIRA Minqiang Zhou, Ph.D student, IAP, Chinese Academy of Sciences (CAS) (fellowship at BIRA from March to end of Nov. 2015)