Data

Macquarie Island nitrogen dioxide measurements, 1996-2022

Australian Antarctic Division

Querel, R., Kreher, K. and Johnston, P. ; QUEREL, RICHARD ; KREHER, KARIN ; JOHNSTON, PAUL

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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://data.aad.gov.au/metadata/MACQ_NO2&rft.title=Macquarie Island nitrogen dioxide measurements, 1996-2022&rft.identifier=http://data.aad.gov.au/metadata/MACQ_NO2&rft.publisher=Australian Antarctic Data Centre&rft.description=Slant column densities of stratospheric nitrogen dioxide (NO2) determined from spectroscopic measurements of zenith scattered twilight at wavelengths from 430-485 nanometres.These data are provided by the NDACC (Network for the Detection of Atmospheric Composition Change) on an annual basis and then stored at the AADC. Only data that are two years old are made available.Further information about the dataset is available from the provided URL.This work was performed as part of ASAC project 2244, but this project has since been replaced by AAS project 4193, Long-term measurements of atmospheric nitrogen dioxide at Macquarie Island.The fields in this dataset are:NO2 slant column density (molecules/cm**2)Error in NO2 slant column density (molecules/cm**2)NO2 Air Mass Factor (AMF)NO2 vertical column density (molecules/cm**2)Year of Observation (UT)Month (UT)Day of month (UT)Hour (UT)Minutes (UT)Latitude of observation site; decimal degreesLongitude of observation site; decimal degreesElevation of site; metersSolar zenith angle at time of observation; decimal degrees Taken from the 2008-2009 Progress Report:Public summary of the season progress:Ground-based measurements of nitrogen dioxide (NO2), one of the key trace gases in the atmosphere, have been made at Macquarie Island since 1996 and span now more than 12 years. These long-term observations made at Macquarie Island help us to bridge the gap between measurements made in the Antarctic and at mid-latitudes. The observations during the 2008/2009 season went smoothly and we have no problems to report.Data collection ceased in 2022 when the instrument failed.Progress Code: completedStatement: Experiment set up in 1996 to replace discontinued dataset at Campbell Island. Data are transferred from Macquarie Island on a monthly basis and initial quality checks made then but full processing is done more typically on an annual time scale. Data collection ceased in 2022 when the instrument failed.&rft.creator=Querel, R., Kreher, K. and Johnston, P. &rft.creator=QUEREL, RICHARD &rft.creator=KREHER, KARIN &rft.creator=JOHNSTON, PAUL &rft.date=1999&rft.coverage=westlimit=158.75793; southlimit=-54.78485; eastlimit=158.96118; northlimit=-54.47483&rft.coverage=westlimit=158.75793; southlimit=-54.78485; eastlimit=158.96118; northlimit=-54.47483&rft.coverage=uplimit=100000; downlimit=0&rft.coverage=uplimit=100000; downlimit=0&rft_rights=Binary data files with spectral measurements, instrument parameters and fitted atmospheric parameters. The raw data are stored to allow for reprocessing as analysis methods improve. Processed data consisted of formatted ascii files giving slant column amounts of atmospheric nitrogen dioxide and ozone. Data are available for download from the AADC at the provided URL. Data can also be accessed directly from the NDACC site, via the provided URL.&rft_rights=Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/legalcode&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=MACQ_NO2 when using these data.&rft_rights=This metadata record is publicly available.&rft_subject=climatologyMeteorologyAtmosphere&rft_subject=EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > OXYGEN COMPOUNDS > ATMOSPHERIC OZONE&rft_subject=EARTH SCIENCE > ATMOSPHERE > AIR QUALITY > NITROGEN OXIDES&rft_subject=EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > NITROGEN COMPOUNDS > NITROGEN DIOXIDE&rft_subject=EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HALOCARBONS AND HALOGENS > CHLOROFLUOROCARBONS&rft_subject=EARTH SCIENCE > SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY&rft_subject=EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > TRACE GASES/TRACE SPECIES&rft_subject=ELEVATION&rft_subject=OZONE&rft_subject=NITROGEN DIOXIDE&rft_subject=TIME&rft_subject=LATITUDE&rft_subject=DATE&rft_subject=ERROR IN NO2 SLANT COLUMN DENSITY&rft_subject=NO2 SLANT COLUMN DENSITY&rft_subject=LONGITUDE&rft_subject=NO2 VERTICAL COLUMN DENSITY&rft_subject=NO2 AIR MASS FACTOR&rft_subject=STRATOSPHERE&rft_subject=MIDDLE ATMOSPHERE&rft_subject=SOLAR ZENITH ANGLE&rft_subject=MONOCHROMATORS&rft_subject=SPECTROMETERS&rft_subject=FIXED OBSERVATION STATIONS&rft_subject=AMD/AU&rft_subject=CEOS&rft_subject=AMD&rft_subject=OCEAN > SOUTHERN OCEAN&rft_subject=OCEAN > SOUTHERN OCEAN > MACQUARIE ISLAND&rft_subject=GEOGRAPHIC REGION > POLAR&rft.type=dataset&rft.language=English Access the data

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Binary data files with spectral measurements, instrument parameters and fitted atmospheric parameters. The raw data are stored to allow for reprocessing as analysis methods improve. Processed data consisted of formatted ascii files giving slant column amounts of atmospheric nitrogen dioxide and ozone. Data are available for download from the AADC at the provided URL. Data can also be accessed directly from the NDACC site, via the provided URL.

This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=MACQ_NO2 when using these data.

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Full description

Slant column densities of stratospheric nitrogen dioxide (NO2) determined from spectroscopic measurements of zenith scattered twilight at wavelengths from 430-485 nanometres.

These data are provided by the NDACC (Network for the Detection of Atmospheric Composition Change) on an annual basis and then stored at the AADC. Only data that are two years old are made available.

Further information about the dataset is available from the provided URL.

This work was performed as part of ASAC project 2244, but this project has since been replaced by AAS project 4193, "Long-term measurements of atmospheric nitrogen dioxide at Macquarie Island".

The fields in this dataset are:
NO2 slant column density (molecules/cm**2)
Error in NO2 slant column density (molecules/cm**2)
NO2 Air Mass Factor (AMF)
NO2 vertical column density (molecules/cm**2)
Year of Observation (UT)
Month (UT)
Day of month (UT)
Hour (UT)
Minutes (UT)
Latitude of observation site; decimal degrees
Longitude of observation site; decimal degrees
Elevation of site; meters
Solar zenith angle at time of observation; decimal degrees

Taken from the 2008-2009 Progress Report:
Public summary of the season progress:
Ground-based measurements of nitrogen dioxide (NO2), one of the key trace gases in the atmosphere, have been made at Macquarie Island since 1996 and span now more than 12 years. These long-term observations made at Macquarie Island help us to bridge the gap between measurements made in the Antarctic and at mid-latitudes. The observations during the 2008/2009 season went smoothly and we have no problems to report.

Data collection ceased in 2022 when the instrument failed.

Lineage

Progress Code: completed

Statement: Experiment set up in 1996 to replace discontinued dataset at Campbell Island. Data are transferred from Macquarie Island on a monthly basis and initial quality checks made then but full processing is done more typically on an annual time scale. Data collection ceased in 2022 when the instrument failed.

Data time period: 1996-01-01 to 2022-06-30