1. SAOZ/NDACC Network Report
1 August 2015 – 31 July 2016
Thule
Ny-Alesund
Zhigansk
Sodankyla
ScoresbySund
Salekhard
Harestua
Aberystwyth
Jungfraujoch
OHP
Tarawa
Bauru
Reunion
Rio Gallegos
Kerguelen
Rothera
Dumont d’Urville
Concordia
NDACC SC, Bremen, Germany, Oct. 2016

2. Stations list Station Country Location St / End date Property Co-Is
Ny-Alesund
Spitsbergen
79 N, 12 E
Sep. 90
NILU
K. Stebel, T. Svendby
Thule
Greenland
77 N, 69 W
DMI
P. Ericksen, N. Jepsen
ScoresbySund
70N, 22 W
Nov. 91
CNRS / DMI
A. Pazmino, P. Ericksen, F. Goutail, J.P. Pommereau
Zhigansk
East Siberia
67 N, 123 E
Dec. 91 / Aug. 13
CNRS / CAO
A. Pazmino, F. Goutail, J.P. Pommereau
Sodankyla
Finland
67 N, 27 E
Mar. 90
CNRS / FMI
A. Pazmino, R. Kivi, F. Goutail, J.P. Pommereau
Salekhard
West Siberia
67 N, 67 E
Nov. 98 / Dec. 14
Harestua
Norway
60 N, 10 E
Jan. 94
BIRA
M. Van Roozendael
Aberystwyth
Wales
52 N, 4 W
Jul. 91
U. Manchester
G. Vaughan, A. Smedley
Jungfraujoch
Switzerland
47 N, 8 E
Jun. 90
OHP
France
44 N, 6 E
Jun. 92
CNRS
A. Pazmino, F. Goutail, J.P. Pommereau
Tarawa
Kiribati Is.
1 N, 173 E
Jul. 92 / Jul.. 99
CNRS / NIWA
A. Pazmino, P. Johnston, F. Goutail, J.P. Pommereau
Reunion
Reunion Is.
21 S, 55 E
Feb. 94
CNRS / U. Reunion
A. Pazmino, T. Portafaix, F. Goutail, J.P. Pommereau
Bauru
Brazil
22 S, 49 W
Nov. 95
CNRS / UNESP
Kerguelen
Kerguelen Is.
49 S, 70 E
Dec. 95
Rio Gallegos
Argentina
52 S, 69 W
Mar. 08
CNRS / CITEFA
A. Pazmino, E. Quel, F. Goutail, J.P. Pommereau
Faraday
Antarctica
65 S, 64 W
Jan. 90 / Oct. 95
BAS
H. Roscoe
Rothera
68 S, 68 W
Jan. 96
H. Roscoe, S. Colwell
Dumont d’Urville
67 S, 140 E
Jan. 88
Concordia
75 S, 123 E
Jan. 07
NDACC SC, Bremen, Germany, Oct. 2016

3. Stations operations Station Configuration Reporting Period
August 2015 – July 2016
Nb of Days
Ny-Alesund
PC; V1024
Spring and Fall only
134
Thule
160
ScoresbySund
Spring to Fall. Missing days due to shutter failures
234
Zhigansk
Stopped in Aug. 31, Replaced by ROSHYDROMET Mini-SAOZ (Gruzdev et al., 2016) --
Sodankyla
Nominal operation
363
Salekhard
Stopped on 31 Dec., Replaced by ROSHYDROMET Mini-SAOZ (Gruzdev et al., 2016)
167
Harestua
SAOZ-like
Instrument renewed in Nov. 2012
341
Aberystwyth
Instrument malfunction and repair. Lack of data until 25 Sept. 2015
283
Jungfraujoch
Instrument renewed in Sept. 2012
279
OHP
366
OHP (Mini-SAOZ)
PC, V2048
NDACC candidate
328
Tarawa
Old HP; V512
Stopped since 1999
Reunion
Reunion (Mini-SAOZ)
Installed in Dec NDACC candidate
223
Bauru
354
Kerguelen
361
Rio Gallegos
343
Faraday/Rothera
PC; V
Dumont d’Urville
384
Concordia
Spring to Fall
257
NDACC SC, Bremen, Germany, Oct. 2016 3

4. NDACC SC, Bremen, Germany, Oct. 2016
Data availability
Consolidated data in NDACC data-base
11 CNRS and BIRA
V3 version: spectral data reprocessed following UV-Vis WG recommendations.
- O3 : daily AMF using O3 profiles climatology (Hendrick et al., 2011)
- NO2 : separate sunrise/sunset AMF using NO2 profiles climatology
(Van Roozendael & Hendrick, 2012)
Faraday/Rothera
V3’ version:
- O3 : daily AMF using blend O3 profiles climatology (Roscoe et al., 2001)
- NO2 : monthly chemically-modified AMFs using climatology from
Cambridge 2D model (Cook & Roscoe 2009)
NyAlesund and Salekhard
V2 version:
- O3 : daily AMF using O3 profiles climatology
- NO2 annual mean AMFs
Aberystwyth and Thule
V1 version:
- O3 and NO2 annual mean AMFs
NDACC SC, Bremen, Germany, Oct. 2016

5. NDACC SC, Bremen, Germany, Oct. 2016
Data availability
Consolidated data in other data-bases
CNRS stations
SAOZ web page:
ESPRI (Atmospheric French database):
WOUDC (V2 version until December 2015)
Aberystwyth
WOUDC (V1 version in 2016)
NDACC SC, Bremen, Germany, Oct. 2016

6. NDACC SC, Bremen, Germany, Oct. 2016
Data availability
NEAR REAL TIME DATA
All CNRS stations in V3
SAOZ web page (daily)
WOUDC maps (daily)
ESA CAL/VAL (monthly)
EU GEOMON (daily)
ESPRI (Atmospheric French database): (daily)
NDACC webpage (OHP and Reunion_StDenis)
Jungfraujoch in V3
NDACC webpage
Ny-Alesund in V3
SAOZ web page (daily)
Rothera in V2’ (O3: monthly AMFs 1995's climatology,
NO2: annual-mean AMFs from SAOZ files of 1990)
BAS/MOMU data-base (daily)
NDACC SC, Bremen, Germany, Oct. 2016 6

7. NDACC SC, Bremen, Germany, Oct. 2016
Data archival
Station 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16
Ny-Alesund
Thule
ScoresbySund
Zhigansk
Sodankyla
Salekhard
Harestua
Aberystwyth
Jungfraujoch
OHP
Tarawa
Reunion
Bauru
Kerguelen
Rio Gallegos
Faraday/Rothera
Dumont d’Urville
Concordia
Consolidated NDACC
database V1 V2 V3
V3’
Real-Time
database
RT V1
RT V2’
RT V3
NDACC SC, Bremen, Germany, Oct. 2016

8. NDACC SC, Bremen, Germany, Oct. 2016
Funding
Station
Present
Future
Ny-Alesund
NILU funding
Secured in 2017
Thule
Expiring end 2016.
Uncertain in 2017
ScoresbySund
French funding secured (SO OVSQ). Operations: DMI until end 2016
Zhigansk
Stopped on August 31, 2013
Sodankyla
French funding secured (SO OVSQ). Operations: FMI, Finland
Salekhard
Stopped on December 31, 2015
Harestua
Funding secured in 2016
Aberystwyth
No direct funding, but data processing has been recently been automated and submission is carried out alongside associated datasets
Jungfraujoch
OHP
French funding secured (SO OVSQ)
Tarawa
Stopped in 1999
Reunion
French funding secured (SO OVSQ). Operations: OPAR, Reunion Is
Bauru
French funding secured (SO OVSQ). Operations: IPMet/UNESP, Brazil
Kerguelen
French funding secured (SO OVSQ, IPEV).
Rio Gallegos
French funding secured (SO OVSQ). Operations: CEILAP/CITEDEF, Argentine
Faraday/Rothera
BAS internal funding
Dumont d’Urville
Concordia
NDACC SC, Bremen, Germany, Oct. 2016

9. NDACC SC, Bremen, Germany, Oct. 2016
Conclusions
Continuation of long-term Satellite/SAOZ comparisons
a) O3: TOMS, GOME, SCIAMACHY, OMI ozone column temperature and SZA dependences
ESA CCI-ozone ECV project (Koukouli et al., 2015)
Comparison with SBUV in collab. with NASA/GSFC, in progress
b) NO2: SCIAMACHY, GOME, OMI
GOME-2
Arctic Ozone loss in 2016 and comparisons to others winters (EGU, QOS, 2016)
SAOZ / DOBSON / BREWER Total Ozone Intercomparison at Arosa, since Oct. 2015
CINDI-2 (Cabauw Intercomparison campaign of Nitrogen Dioxide measuring Instruments 2), in Sept. 2016, KNMI Cabauw/CESAR site, The Netherlands
Future:
Participation to Sentinel 5 Precursor Cal/Val for stratospheric O3 & NO2 columns
Deployment of Mini-SAOZ in Seychelles Islands
NDACC SC, Bremen, Germany, Oct. 2016

10. Mini-SAOZ, Dobson & Brewer comparaison
in Arosa, Switzerland since Oct 2015
Collaboration with MeteoSwiss & WMO
Similar day to day & seasonal variability
- 0.7 ± 2.7 % mean bias between SAOZ & Dobson 62 and -3.4%±2.9% with Brewer 40
2.1% amplitude difference seasonality between SAOZ and Dobson 62 and Dobson 51 due to O3 cross-sections temperature dependence
Absence of seasonality with Brewer
NDACC SC, Bremen, Germany, Oct. 2016

11. NDACC SC, Bremen, Germany, Oct. 2016
Publications (1/3)
PEER REVIEWED PAPERS
Boynard, A., D. Hurtmans, M. Koukouli, F. Goutail, J. Bureau, S. Safieddine, C. Lerot, J. Hadji-Lazaro, J.P Pommereau, A. Pazmino, Irene Zyrichidou, D. Balis, A. Barbe, S. N. Mikhailenko, D. Loyola, P. Valks, M. Van Roozendael, P.F. Coheur, and C. Clerbaux: Seven years of IASI ozone retrievals from FORLI: validation with independent total column and vertical profile measurements. Atmos. Meas. Tech., 2016, 9, 4327–4353, doi: /amt
Koukouli, M. E., C. Lerot , J. Granville , F. Goutail , J. C. Lambert , J-P. Pommereau , D. Balis , E. Zyrichidou , M. van Roozendael , M. Coldewey-Egbers , D. Loyola , G. Labow , S. Firth , R. Spurr , and C. Zehner, Evaluating a new homogeneous total ozone climate data record from GOME/ERS-2, SCIAMACHY/Envisat, and GOME-2/MetOp-A, J. Geophys. Res. Atmos., 2015, 120, 12,296–12,312, doi /2015JD023699
Poulain, V., S. Bekki, M. Machand, M. Chipperfield, M. Khodri, F. Lefèvre, S. Dhomse, G. Bodeker, R. Toumi, M. De Mazière, J-P Pommereau, A. Pazmino, F. Goutail, D. Plummer, E. Rozanov, E. Mancini; H. Akiyoshi; J-F Lamarque and J. Austin: Evaluation of the inter-annual variability of stratospheric chemical composition in chemistry-climate models using ground- based multi species time series. Journal of Atmospheric and Solar-Terrestrial Physics, Elsevier, 2016, 145, pp.61-84, doi: /j.jastp
Verhoelst T., Granville J., Hendrick F., Köhler U., Lerot C., Pommereau J.-P., Redondas A., Van Roozendael M., Lambert J.- C., Metrology of ground-based satellite validation: co-location mismatch and smoothing issues of total ozone comparisons, Atmos. Meas. Tech., 2015, 8, , doi: /amt
NDACC SC, Bremen, Germany, Oct. 2016 11

12. NDACC SC, Bremen, Germany, Oct. 2016
Publications (2/3)
REPORTS AND CONFERENCES (1/2)
Frihi, A., J.P. Pommereau, F. Goutail, A. Pazmino, S. Bekki, Origin of Satellites and G-B SAOZ total ozone measurements differences in the tropics, Satellites and SAOZ total ozone comparison in the tropics. EGU General Assembly 2016, Vienna, Austria, April 2016.
Godin-Beekmann, S., A. Pazmino, F. Goutail, S. Khaykin, M.R. de Backer, F. Jégou and I. Petropavlovskikh, Recent ozone trends at northern mid-latitudes. SHARP workshop, Berlin, Germany, February 2016.
Goutail, F., J.-P. Pommereau, F. Lefevre, A. Pazmino, M. Chipperfield, W. Feng, M. Van Roozendael, P. Eriksen, K. Stebel, R. Kivi, K. Strong, X. Zhao, K. Walker, V. Sitnikova and S. Khatatov, Twenty-two years Arctic ozone depletion observations and simulations. Is there a trend? Quad. Ozone Symp., 4-9 September, 2016.
Goutail F., F. Lefevre, J-P Pommereau, A Pazmino, M. Chipperfield, W. Feng, M. Van Roozendael, P. Eriksen, K. Stebel, R. Kivi, K. Strong, X. Zhao, and K. Walker, Total ozone loss during the 2015/16 Arctic winter and comparison to previous years. EGU General Assembly 2016, Vienna, Austria, April 2016. 
Lamy K., T. Portafaix, H. Bencherif, S. Godin-Beekmann, C. Brogniez, J.M. Metzger, A. Pazmino, and C. N. Long, Ultraviolet Radiation modeling from ground based and satellite measurements of Ozone over Réunion Island, Quad. Ozone Symp., 4-9 September, 2016.
Pazmino, A., S. Godin-Beekmann, A. Hauchecorne, C. Claud, F. Lefèvre, S. Khaykin, F. Goutail, J. P. Pommereau, C. Boonne, E. Wolfram, J. Salvador, E. Quel, Evaluation of total ozone recovery inside the Antarctic vortex, Quad. Ozone Symp., 4-9 September, 2016.
Pinardi G., Van Roozendael, M., Lambert, J.-C., Granville, J., Hendrick, F., Gielen, C., Cede, A., Kanaya, Y., Irie, H., Wittrock, F., Richter, A., Peters, E., Wagner, T., Gu, M., Remmers, J., Lampel, J., Friess, U., Vlemmix, T., Piters, A., Hao, N., Tiefengraber, M., Herman, J., Abuhassan, N., Holla, R., Bais, A., Balis, D., Drosoglou, T., Kouremeti, N., Hovila, J., Chong, J., Postylyakov, O., Ma, J., Goutail, F., Pommereau, J.-P., Pazmino, A., Navarro, M., Puentedura, O., Yu, H., ESA Living Planet Symposium, Prague, Czech Republic, 9-13 May 2016.
Pommereau J.P., A. Frihi, F. Goutail , A. Pazmino, S. Bekki, C. Clerbaux, A. Boynard, P.-F. Coheur, C. Lerot, M. Van Roozendael, T. Danckaert, T. Portafaix, Origin of Satellites and G-B SAOZ/NDACC total ozone measurement differences in the tropics, Quad. Ozone Symp., 4-9 September, 2016
NDACC SC, Bremen, Germany, Oct. 2016 12

13. NDACC SC, Bremen, Germany, Oct. 2016
Publications (3/3)
REPORTS AND CONFERENCES (2/2)
Pommereau, J.P., C. Lerot, M. Van Roozendael, F. Goutail, A. Pazmino, A. Frihi, S. Bekki and C. Clerbaux, All satellites total ozone evaluation in the tropics by comparison with SAOZ-NDACC ground-based measurements, 41st COSPAR Scientific Assembly, 30 July – 7 August, 2016.
Pommereau, J.P., F. Goutail, A. Pazmino, C. Clerbaux, J. Hadji-Lazaro, A. Boynard and C. Clerbaux, Evaluation of IASI total ozone accuracy by comparisons with SAOZ and all other satellites measurements in the tropics and at mid-latitudes, IASI 2016, Antibes Juan-les-Pins, France, April 2016.
Portafaix T., A. M. Toihir, H. Bencherif, S. Godin-Beekmann, V. Sivakumar, N. Bègue, and A. Pazmino, Influence of the dynamical activity on the inter-annual variability of ozone in the tropics, Quad. Ozone Symp., 4-9 September, 2016.
Salvador J., E. Wolfram, J. Quiroga, F. Orte, F. Zamorano, S. Godin-Beekmann, A. Pazmiño, E. Quel, H Ohyama, T Nagahama, T Nakajima, and A Mizuno, Stratospheric ozone observations at mid-latitude NDACC station Río Gallegos (51º 36’S, 69º 19’W ), Patagonia, Quad. Ozone Symp., 4-9 September, 2016
NDACC SC, Bremen, Germany, Oct. 2016 13