Ozone

M. Marchand (LATMOS-IPSL) and F. Cairo (ISAC-CNR) — Operated from 1991 to 2001. Data are archived from 1991–1998 under former PI (S. Godin-Beekmann). Operations ceased in 2001 due to instrument degradation. A new lidar was operational from 2006 until laser failure in 2013. Repairs are postponed.

J. Salvador, E. Wolfram, and E. Quel (CEILAP) – Ozone DIAL system with periodic measurements going back to 2005. Began official NDACC operations in 2008. Measurements ended 2016 due to funding issues.

R. Querel (NIWA) — Weekly ECC sondes (DMT) year-round since August 1986 for obtaining profiles of ozone, temperature, pressure, and winds from 0 to 32 km. Early data archived under previous PIs (Bodeker and Zeng).

G. Nedoluha and R. M. Gomez (NRL), A. Parrish (U. MA), and I. S. Boyd (BC Consulting) — Retrieving profiles from 20 to 70 km from October 1992 to October 2016. Instrument is identical to Mauna Loa system and participated in intercomparisons at Table Mountain Facility (34.4°N, 117.7°W) in July 1989. Observatoire de Haute Provence (43.94°N, 5.71°E) in July 1992, and Lauder in April 1995. This instrument also operated at Table Mountain Facility from July to November 1989 and from May 1990 to June 1992. A new instrument will be installed in the future.

R. Querel (NIWA) — Installed November 1994 by RIVM (former PI Daan Swart). Participated in OPAL and TOPAL intercomparison campaigns with GSFC mobile lidar, LaRC microwave ozone radiometer, and ozonesondes in 1995 and 2002, respectively. New laser installed and retrieval software updated in 2007; all data reprocessed. Retrieving ozone from 8 to 50 km year-round (attempting to get one measurement per week). Also retrieves aerosols (8 to 25 km) and temperature (8 to 70 km) profiles, though neither is submitted to the NDACC database. Ownership and PI responsibilities transferred from RIVM to NIWA as of July 2017.

R. Querel, S. Nichol, and H. Shiona (NIWA) and G. McConville (NOAA/ESRL) — Daily Dobson #072 observations beginning January 1987.

H. Bencherif (LACy) and S. Godin-Beekmann (LATMOS-IPSL) — Stratospheric ozone DIAL system began making measurements at Maido in February 2013.  Prior to this, measurements had been taken since 2000 in St. Denis, Reunion Island.  Instrument temporarily out of service as of December 2021 awaiting parts and coolant.

J. Brioude and S. Evan (LACy) — Measurements since September 1992. Once every 2 weeks from 1992–1999; once per week since 1999. Receiving equipment and acquisition software replaced for Meteo Modem system in August 2007. NDACC data archived since 1998.

T. Portafaix (LACy) and S. Godin-Beekmann (LATMOS-IPSL) — Stratospheric ozone DIAL system installed in May 2000. Year-round ozone profiles from 15 to 45 km. Instrumental problems from 2006 to present with intermittent operations from 2002–2006 and archived under former PI Baray. Operations suspended at St. Denis; instrument moved to Maido Observatory in February 2013.

B. Johnson (NOAA/ESRL) — Weekly ECC sondes since June 1991 and archived since 1995.