Updated: 20 Apr 2023
NDACC Version 6 ozone Microwave dataset from NIWA Lauder atmospheric research station available at the NDACC and EVDC Data Handling Facilities
DOI
10.21336/gen.bpqv-7z42
Publisher
NDACC - Network for the Detection of Atmospheric Composition Change / EVDC - ESA Atmospheric Validation Data Centre
Creators
Nedoluha, Gerald
Parrish, Alan
Boyd, Ian
Gomez, R. Michael
Publication Year
2016
Resource Type
Dataset
Subject
Atmospheric Science
Contributors
Nedoluha, Gerald (ProjectLeader)
Boyd, Ian (ProjectMember)
Dates
Valid: 1992-10-27/2016-10-03
Created: 2016
Submitted: 2016
Data Format
GEOMS HDF
Licence
https://creativecommons.org/licenses/by-nc-sa/4.0
Data Policy
In addition to the CC BY-NC-SA license, the NDACC Data Use Agreement including publication co-authorship policy must always be respected (see http://www.ndaccdemo.org/data/use-agreement).
Descriptions
Abstract: The Microwave Ozone Profiling Instrument (MOPI) is a microwave spectrometer observing atmospheric thermal emission at 110.8 GHz from the ground.
Methods: MOPI consists of a cryogenic heterodyne receiver and spectrometer, and records the spectral lineshape of an ozone rotational transition every 15 - 20 minutes at about 10 to 20 degrees elevation. Observations continue 24 hours a day whenever weather permits. An ozone mixing ratio profile from 56hPa to 0.06hPa (about 20 - 68 km) is retrieved using a semi-empirical optimal estimation retrieval method. For every 24 hour continuous observation, up to four ozone profiles per day are reported (two daytime and two nighttime) with integration times ranging from 40 minutes to 6 hours, depending on weather conditions and season. For profiles in the stratosphere, the expected random uncertainty is 4 - 5%, and systematic uncertainty is 5 - 6%. The combined uncertainties of the ozone profiles increase in the mesosphere and can reach 10 - 14% for nighttime profiles and 12 - 16% for daytime profiles. The uncertainty, vertical resolution, apriori and a priori dependence information for each ozone profile at each retrieved pressure level are reported in the data set.
Other: Reference: Parrish, A., B.J. Connor, J.J. Tsou, I.S. McDermid, and W.P. Chu: Ground-based Microwave Monitoring of Stratospheric Ozone, J. Geophys. Res., Vol 97 (D2), p.2541-2546, February 20, 1992.
Other: Reference: Connor, B.J., A. Parrish, J.J. Tsou, and M.P. McCormick: Error Analysis for the Ground-based Microwave Ozone Measurements During STOIC, J. Geophys. Res., Vol 100 (D5), p.9283-9291, May 20, 1995.
Other: Reference: Nedoluha, G. E., Boyd, I. S., Parrish, A., Gomez, R. M., Allen, D. R., Froidevaux, L., Connor, B. J., and Querel, R. R.: Unusual stratospheric ozone anomalies observed in 22 years of measurements from Lauder, New Zealand, Atmos. Chem. Phys., 15, 6817-6826, doi:10.5194/acp-15-6817-2015, 2015.
Locations
Location: Lauder
Latitude: -45.038
Longitude: 169.684
Funding
Funding provided by the NASA Earth Science Division Upper Atmosphere Research Program.
Download Data
Click this link to access the data in the NDACC Ames format.