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  • 1
    Electronic Resource
    Electronic Resource
    Observational evidence for chemical ozone depletion over the Arctic in winter 199192 (1995)
    [s.l.] : Nature Publishing Group
    Nature 375 (1995), S. 131-134 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] During the 1991-92 winter, about 1,200 electrochemical cell (ECC) ozonesondes were launched as part of the European Arctic Stratospheric Ozone Experiment (EASOE) and from Canadian stations at middle and high northern latitudes, giving a uniquely detailed data set. Here we use the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/375131a0
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Prolonged stratospheric ozone loss in the 1995–96 Arctic winter (1997)
    [s.l.] : Macmillan Magazines Ltd.
    Nature 389 (1997), S. 835-838 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It is well established that extensive depletion of ozone, initiated by heterogenous reactions on polar stratospheric clouds (PSCs) can occur in both the Arctic and Antarctic lower stratosphere. Moreover, it has been shown that ozone loss rates in the Arctic region in recent years reached values ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/39849
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    Paper (German National Licenses)
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  • 3
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    Ozone sonde profiles during MOSAiC Leg 1-2-3 (2020)
    PANGAEA
    In:  Alfred Wegener Institute - Research Unit Potsdam
    Details
    Publication Date: 2023-06-27
    Description: Vertical profiles of ozone sondes launched during the MOSAiC expedition (leg 1 - 3).
    Keywords: ALTITUDE; Arctic Ocean; Atmosphere; Battery, voltage; Calculated from GPS; DATE/TIME; Elapsed time; Event label; GPS receiver mounted on radiosonde RS41; Height, geometric; Humidity, relative; integrated from pressure and temperature; LATITUDE; LONGITUDE; Mosaic; MOSAiC; MOSAiC20192020; Multidisciplinary drifting Observatory for the Study of Arctic Climate; Ozone, partial pressure; Ozone, raw current; ozone sonde; Ozonesonde, Science Pump Corporation, ECC6A; Interface, Vaisala, OIF411; Polarstern; Pressure, at given altitude; PS122/1; PS122/1_10-31; PS122/1_11-33; PS122/1_2-142; PS122/1_2-191; PS122/1_6-27; PS122/1_8-14; PS122/1_9-21; PS122/2; PS122/2_16-20; PS122/2_17-38; PS122/2_18-31; PS122/2_19-50; PS122/2_20-22; PS122/2_21-60; PS122/2_22-40; PS122/2_22-60; PS122/2_23-104; PS122/2_23-44; PS122/2_24-40; PS122/2_25-39; PS122/2_25-70; PS122/2_25-85; PS122/3; PS122/3_30-12; PS122/3_30-60; PS122/3_31-34; PS122/3_32-17; PS122/3_32-31; PS122/3_33-12; PS122/3_33-63; PS122/3_34-54; PS122/3_34-7; PS122/3_34-72; PS122/3_35-31; PS122/3_36-28; PS122/3_37-62; PS122/3_38-71; PS122/3_39-44; PS122/3_40-43; PS122/3_41-40; PS122/3_42-41; Pump current; RADIO; Radiosonde; Radiosonde, Vaisala, RS41; Temperature, air; Temperature, internal pump; vertical profiles; Wind direction; Wind speed
    Type: Dataset
    Format: text/tab-separated-values, 2743920 data points
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    DATA PANGAEA
  • 4
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    Ozone sonde profiles during MOSAiC Leg 4-5 (2022)
    PANGAEA
    In:  Alfred Wegener Institute - Research Unit Potsdam
    Details
    Publication Date: 2023-06-27
    Description: Vertical profiles of ozone (up to 36 km) measured by ozone sondes (manufactured by Science Pump Corporation) launched during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition (leg 4 - 5) from board R/V Polarstern in the Arctic sea between 12 June and 28 Sept 2020. Additionally, temperature, pressure, relative humidity and wind profiles are provided as level 2 data from the Vaisala RS41 radiosonde measurements. The ozone measurements complement the suit of measurements at the ground and the boundary layer of the atmosphere during the campaign.
    Keywords: ALTITUDE; Arctic Ocean; Atmosphere; Battery, voltage; Calculated from GPS; DATE/TIME; Elapsed time; Event label; GPS receiver mounted on radiosonde RS41; Height, geometric; Humidity, relative; integrated from pressure and temperature; LATITUDE; LONGITUDE; Mosaic; MOSAiC; MOSAiC20192020; Multidisciplinary drifting Observatory for the Study of Arctic Climate; Ozone, partial pressure; Ozone, raw current; ozone sonde; Ozonesonde, Science Pump Corporation, ECC6A; Interface, Vaisala, OIF411; Polarstern; Pressure, at given altitude; Profile; PS122/4; PS122/4_44-100; PS122/4_44-152; PS122/4_44-229; PS122/4_44-57; PS122/4_45-128; PS122/4_46-145; PS122/4_47-116; PS122/4_48-172; PS122/4_50-5; PS122/4_50-70; PS122/5; PS122/5_59-262; PS122/5_59-70; PS122/5_60-29; PS122/5_61-98; PS122/5_62-82; PS122/5_63-120; Pump current; RADIO; Radiosonde; Radiosonde, Vaisala, RS41; Temperature, air; Temperature, internal pump; vertical profiles; Wind direction; Wind speed
    Type: Dataset
    Format: text/tab-separated-values, 1302028 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Measuring the Tropospheric Ozone Minimum in the Tropical West Pacific - ECC Sonde Modifications (2016)
    In:  EPIC3Ozone Sonde Experts Meeting (Quadrennial Ozone Symposium Side Meeting), Edinburgh, UK, 2016-09-01-2016-09-03
    Details
    Publication Date: 2020-07-14
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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    PAPER (OA)
  • 6
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    Characterization of Tropospheric Ozone in the Tropical West Pacific (2019)
    In:  EPIC3IUP Seminar, Bremen, 2019-11-01-2019-11-01
    Details
    Publication Date: 2020-07-14
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 7
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    Measuring the Tropospheric Ozone Minimum in the Tropical West Pacific (2016)
    In:  EPIC3Quadrennial Ozone Symposium, Edinburgh, UK, 2016-09-04-2016-09-09
    Details
    Publication Date: 2020-07-14
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
    Format: application/pdf
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  • 8
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    Climate change favours large seasonal loss of Arctic ozone (2021)
    Springer Nature Limited
    In:  EPIC3Nature Communications, Springer Nature Limited, 12(3886)
    Details
    Publication Date: 2021-06-28
    Description: Chemical loss of Arctic ozone due to anthropogenic halogens is driven by temperature, with more loss occurring during cold winters favourable for formation of polar stratospheric clouds (PSCs). We show that a positive, statistically significant rise in the local maxima of PSC formation potential (PFP^LM) for cold winters is apparent in meteorological data collected over the past half century. Output from numerous General Circulation Models (GCMs) also exhibits positive trends in PFP^LM over 1950 to 2100, with highest values occurring at end of century, for simulations driven by a large rise in the radiative forcing of climate from greenhouse gases (GHGs). We combine projections of stratospheric halogen loading and humidity with GCM-based forecasts of temperature to suggest that conditions favourable for large, seasonal loss of Arctic column O3 could persist or even worsen until the end of this century, if future abundances of GHGs continue to steeply rise.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
    Format: application/pdf
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  • 9
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    Origin of Tropospheric Air Masses in the Tropical West Pacific identified by Balloon-borne Ozone and Water Vapor Measurements from Palau (2020)
    In:  EPIC3AGU 2020 Fall Meeting
    Details
    Publication Date: 2021-01-21
    Description: Motivated by previous measurements of very low tropospheric ozone concentrations in the Tropical West Pacific (TWP) and the implied low oxidizing capacity of this key region for transport into the stratosphere (e.g. Rex et al. 2014), we set up an atmospheric research station in Palau (7° N 134° E). Our analysis of regular balloon-borne tropospheric ozone observations at Palau from 01/2016-10/2019 confirms the year-round dominance of a low ozone background in the mid-troposphere. Layers of enhanced ozone are often anti-correlated with water vapor and occur frequently. Moreover, the occurrence of respective layers shows a strong seasonality. Dry and ozone-rich air masses between 5 and 10 km altitude were observed in 71 % of the profiles from February until April compared to 25 % from August until October. By defining monthly atmospheric background profiles for ozone and relative humidity based on observed statistics, we found that the deviations from this background reveal a bimodal distribution of RH anomalies. A previously proposed universal bimodal structure of free tropospheric ozone in the TWP could not be verified (Pan et al. 2015). Back trajectory calculations confirm that throughout the year the mid-tropospheric background is controlled by local convective processes and the origin of air masses is thus close to or East of Palau in the Pacific Ocean. Dry and ozone-rich air originates in tropical Asia and reaches Palau in anticyclonic conditions over an area stretching from India to the Philippines. This supports the hypothesis of several studies which attribute ozone enhancement against the low ozone background to remote pollution events on the ground such as biomass burning (e.g. Andersen et al. 2016). A potential vorticity analysis revealed no stratospheric influence and we thus propose large-scale descent within the tropical troposphere as responsible for dehydration of air masses on their way to Palau.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev , info:eu-repo/semantics/conferenceObject
    Format: application/pdf
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  • 10
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    The increasing surface and tropospheric ozone in Antarctica and their possible drivers (2021)
    ACS Publications
    In:  EPIC3Environmental Science and Technology, ACS Publications, 55(13), pp. 8542-8553
    Details
    Publication Date: 2021-07-08
    Description: A comprehensive analysis of the temporal evolution of tropospheric ozone in Antarctica using more than 25 years of surface and ozonesonde measurements reveals significant changes in tropospheric ozone there. It shows a positive trend in ozone at the surface lower and mid-troposphere, but a negative trend in the upper troposphere. We also find significant links between different climate modes and tropospheric ozone in Antarctica and observe that changes in residual overturning circulation, the strength of the polar vortex, and stratosphere-troposphere exchange make noticeable variability in tropospheric ozone. Therefore, this study alerts increasing ozone concentration in Antarctica, which would have a profound impact on the future climate of the region as tropospheric ozone has warming feedback to the Earth’s climate.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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