1. Martial Haeffelin (on behalf of J-F. Doussin) CNRS / IPSL
CNRS Report Atmospheric Composition Observing Systems, and Opportunities at the French and European Level
Martial Haeffelin (on behalf of J-F. Doussin)
CNRS / IPSL

2. OUTLINE NDACC : a highly important network for CNRS
Research Infrastructures: a tool/opportunity to support long- term atmospheric observations (ACTRIS-FR)
AERIS: the French integrated atmospheric data & services center (NDACC data and services)
NDACC services in ACTRIS-RI

3. 1. High-level of CNRS Engagement in support of NDACC Network
SAOZ Network
OHP
Présentation de la carte du NDACC avec la localisation des stations françaises à l’OHP, l’OPAR et DDU plus les sites du réseau de spectromètres UV-visible SAOZ
OPAR
DDU

4. Gérard Mégie Geophysical Station Haute-Provence Observatory
(44°N, 5,7°E, 650m)
Instruments for atmospheric monitoring
NDACC instruments running since 1991:
- 4 lidars: O3, temperature, aerosols, water vapor,
- O3, NO2, BrO, UV spectrometers
- Ozonosondes + meteorological sondes
Other Networks
- O3, CO in situ
- Aeronet sunphotometer (Aerosols)
Research instruments
- Doppler Wind lidar
- Michelson EPIS (wind 80 km)
- Pyranometers
- Infrasound sensors
BrO: hypobromite used as a germicide and antiparasitic in both industrial applications, and in the immune system
Station site

5. Evidence of long-term support 22-year series of stratospheric aerosol observations using two independent lidars at OHP
Stratospheric Aerosol Optical Depth km 532 nm
Intercomparison of sAOD from OHP lidars and satellites
Partie haute: intercomparison de l’épaisseur optique des aérosols stratosphériques entre 17 et 30 km obtenue avec les 2 lidars température (LTA) et ozone (voie non absorbée), comparée aux instruments spatiaux GOMOS (occultation stellaire), Sage II (occultation solaire), OSIRIS (diffusion solaire au limbe ) et CALIOP (lidar)
Partie basse : évolution de l’épaisseur optique vue par les lidars et les satellites avec indication des périodes affectées par des éruptions volcaniques.
Excellent agreement allowing for accurate characterization of stratospheric aerosol variability and long-term change
Khaykin et al., ACPD, 2016

6. Comparisons to previous winters (EGU & QOS, 2016)
O3 loss estimation with SAOZ
Comparisons to previous winters (EGU & QOS, 2016)
O3 loss (%)
Estimation de la destruction d’ozone (colonne stratosphérique) chaque hiver déterminée à partir des spectromètres SAOZ. Les mesures sont comparées au modèle LMDZ-Reprobus avec chimie désactivée pour estimer la destruction.
Large ozone loss interannual variability, dependent on vortex duration
2016: third largest loss since 1994
2011: record 38%
1996: 30%

8. Mesures du lidar vapeur d’eau du Maïdo montrant que le lidar peut atteindre la basse stratosphère à condition d’intégrer suffisamment longtemps.

9. 2. RESEARCH INFRASTRUCTURES
A TOOL/OPPORTUNITY TO SUPPORT LONG-TERM ATMOSPHERIC OBSERVATIONS
(ACTRIS-RI EU; ACTRIS-FR)

10. 2. RESEARCH INFRASTRUCTURES IN SUPPORT OF LONG-TERM OBS
ACTRIS Research Infrastructure: Services developed to support observing networks (EARLINET, CLOUDNET, NDACC, …)
Short-lived species
Atmospheric composition Troposphere-lower Stratosphere
Processes influencing composition / climate (aerosols, clouds)
WP2 ACTRIS National Facilities
Technical description/concept for NF service provision
Definition of NF requirements (incl. instrument protocols, data requirements,..)
Site and network design
Site selection for data and physical access (ACTRIS labelling process)
Testing of NF services
WP3 ACTRIS Central Facilities
Technical description (concept) of Central Facilities
CF site selection process (assessment of the CF applications and approval)
Testing of CF services

11. 2. RESEARCH INFRASTRUCTURES IN SUPPORT OF LONG-TERM OBS?
NDACC-Fr
CLAP
GAW
PHOTON CC
RCCAP
ACTRIS HO
INDAF CC
Cloud Radar
NDACC
ACTRIS Data Center
AERIS
SIRTA CC
Reactive Gases
PDD
ACTRIS National Facilities
GRUAN
OPAR
P2OA CC
Aeronet-Europe
AERONET
OHP
ACTRIS Calibrat° Centers CC
ACMCC
4-M
BSRN
CESAM

12. FRENCH INTEGRATED ATMOSPHERIC DATA & SERVICES CENTER
3. AERIS
FRENCH INTEGRATED ATMOSPHERIC DATA & SERVICES CENTER

13. INTEGRATED ATMOSPHERIC DATA & SERVICES CENTER
Dynamics, meteorology, chemistry
Climate evolution
Processes studies
Climatology analyses
Modeling Validation
Data assimilation
4 data centers (Lille, Paris, Lannion, Toulouse)
3000 To of data
1400 CPUs
Over 100 projects
Need more integrated facilities
All type of Observations : Satellite, ground-based observations, campaigns, balloons, aircrafts
Simplifying data and services access

14. O3 STRATO LIDAR IN HDF FORMAT (CAMS APPLICATION / NORS PROJECT)
NDACC-FRANCE DATA AND SERVICES
O3 STRATO LIDAR IN HDF FORMAT
NRT DELIVERY TO NDACC
(CAMS APPLICATION / NORS PROJECT)

15. SATELLITE AND IN-SITU DATA AND SERVICES

16. 4. NDACC SERVICES IN ACTRIS-RI
CNRS supports the position that NDACC-FR identifies/proposes services in support of the NDACC network to be included in ACTRIS-RI services.

17. 4. NDACC Services in ACTRIS-RI
(1) ACTRIS DATA CENTER: AERIS participation to ACTRIS DC with NDACC value-added products
Datasets: Access to satellite and other auxiliary datasets
Value-Added Products: Analysis of ozone depletion and chemical state of the stratosphere (Reprobus Chemistry Transport model)
Tools: Analysis and forecast maps of stratospheric potential vorticity (MIMOSA model)

18. 4. NDACC Services in ACTRIS-RI
(2) ACTRIS CALIBRATION / EXPERT CENTER:
Define NDACC network needs (e.g. For stratospheric Lidars? For MAXDOAS?)
Characterization of basic components ? Assessment of the overall system’s performance ? Systematic quality assurance ? …
Lidar Calibration Training Laboratory? Lidar Components Testing Laboratory? Mobile Lidar facility for intercomparisons?
See

19. 4. NDACC Services in ACTRIS-RI
(3) ACTRIS TRANSNATIONAL ACCESS:
Each country decides which station will provide user physical access
French NDACC station providing TNA under ACTRIS-2: OPAR (Reunion)
ACTRIS coordinated framework to support and facilitate hands-on access of researchers to 18 world-class observing platforms in Europe within the transnational access (TNA) programme.

20. DISCUSSION
Ensure long-term sustainability of network
Participation to Atmospheric Research Infrastructure
Manage and develop datasets, tools, services