J. Hannigan and M. Coffey (NCAR) – Resumed measurements in 2009 with a new automated system and the U. Denver Bruker 120HR. In 2011 the instrument was upgraded to a Bruker 125HR (data lapse March 2010-August 2011). In 2017 a new automated system was installed.
D. Murcray and R. Blatherwick (U. Denver) – Bomem DA3 (0.002 cm 1 resolution) operated once per week from November 1991 to November 1995. Automated Bruker 120HR (0.0035 cm 1 resolution) installed August 1995. Operations suspended in 2001, resumed briefly for 2003, then resumed intermittently from 2006 - 2009.
T. J. McGee (GSFC), L. Twigg (SSAI), and G. Sumnicht (SSAI) – The STROZ lidar retrieves ozone vertical profiles in the stratosphere from 10 to 50 km. Temperature to ~80 km and aerosols (at 355 nm) to 35 km also are measured. The instrument has also been modified to measure water vapor from near the ground to ~10 km. As a mobile intercomparator, it has participated in ozone and temperature intercomparisons at Mauna Loa from June 1995 – February 1996, August 2002, November 2012 – August 2013, and January 2014.
T. J. McGee (GSFC), L. Twigg (SSAI), and G. Sumnicht (SSAI) – The Aerosol and Temperature Lidar (AT Lidar) has been rebuilt, and now includes water vapor to ~15 km, temperature in the troposphere using rotational Raman backscatter, stratospheric temperature up to ~80 km, and aerosol parameters using elastic and Raman backscatter up to ~35 km. As a mobile intercomparator, it has participated in intercomparisons at Mauna Loa from November 2012 – August 2013, January 2014 & 2015 and November 2015.
G. Nedoluha and R. M. Gomez (NRL), A. Parrish (U. MA) and I. S. Boyd (BC Consulting) – One of two Millitech-built systems; installed in 1995 following testing and intercomparisons at Table Mountain Facility (34.4˚N, 117.7˚W). Participated in intercomparison at Mauna Loa in July 1995. Retrieving profiles from 20 to 64 km from July 1995 to April 1996 and from August 1996 to May 2015. Measurements (20 – 72 km) with a new instrument began in 2016.
G. Nedoluha and R. M. Gomez (NRL) and I. S. Boyd (BC Consulting) – NRL Water Vapor Microwave Spectrometer #3 (WVMS3) operating since March 1996 following testing at Table Mountain Facility. Measurements have been taken with the new WVMS6 since 2010 over the altitude range (40 - 80 km).
R. Querel and A. Thomas (NIWA) – DOAS, measuring trace gases from global and scattered irradiance, since 1996. Current measurements, since late April 2009, of NO2 and BrO slant columns are made using a CCD detector. Spectrometer damaged in early 2014 and returned to Lauder. Measurements are unlikely to continue. Data up to 2009 are archived under previous PI (Johnston). Data from 2009 – 2013 not yet archived.
ESRL: Earth System Research Laboratory
GSFC: NASA Goddard Space Flight Center
NCAR: National Center for Atmospheric Research
NOAA: National Oceanic and Atmospheric Administration
NIWA: National Institute of Water and Atmospheric Research
NRL: Naval Research Laboratory
JPL: Jet Propulsion Laboratory