<?xml version="1.0" encoding="UTF-8"?><!--*** Generated from internal PANGAEA metadata schema by dif.xslt ***--><DIF xsi:schemaLocation="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/ http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/dif_v9.4.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/">
<Entry_ID>PANGAEA_995757</Entry_ID>
<Entry_Title>Airchemistry at Neumayer station, Antarctica during the year 2025</Entry_Title>
<Data_Set_Citation>
<Dataset_Creator>Jurányi, Zsófia; Weis, Lukas</Dataset_Creator>
<Dataset_Title>Airchemistry at Neumayer station, Antarctica during the year 2025</Dataset_Title>
<Dataset_Release_Date>2026-07-02</Dataset_Release_Date>
<Dataset_Publisher>PANGAEA</Dataset_Publisher>
<Data_Presentation_Form>Dataset</Data_Presentation_Form>
<Online_Resource>https://doi.pangaea.de/10.1594/PANGAEA.995757</Online_Resource>
</Data_Set_Citation>
<Personnel>
<Role>Investigator</Role>
<First_Name>Zsófia</First_Name>
<Last_Name>Jurányi</Last_Name>
<Email>zsofia.juranyi@awi.de</Email>
</Personnel>
<Discipline>
<Discipline_Name>Earth Science</Discipline_Name>
</Discipline>
<Parameters>
<Detailed_Variable>DATE/TIME</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Temperature, air</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Wind speed</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Wind direction</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Aerosol scattering coefficient at 450 nm</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Aerosol scattering coefficient at 550 nm</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Aerosol scattering coefficient at 700 nm</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Aerosol backscattering coefficient at 450 nm</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Aerosol backscattering coefficient at 550 nm</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Aerosol backscattering coefficient at 700 nm</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Particle number</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Ozone</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Contamination flag</Detailed_Variable>
</Parameters>
<ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
<Keyword>aerosol</Keyword>
<Keyword>Air chemistry observatory</Keyword>
<Keyword>Antarctica</Keyword>
<Keyword>Neumayer_based</Keyword>
<Keyword>Neumayer_SPUSO</Keyword>
<Keyword>Neumayer Station</Keyword>
<Keyword>Spuso</Keyword>
<Keyword>surface ozone</Keyword>
<Sensor_Name>
<Long_Name>Nephelometer TSI 3563</Long_Name>
</Sensor_Name>
<Sensor_Name>
<Long_Name>Condensation particle counter (CPC), TSI, 3775</Long_Name>
</Sensor_Name>
<Sensor_Name>
<Long_Name>Surface ozone analyzer ansyco O341M</Long_Name>
</Sensor_Name>
<Sensor_Name>
<Long_Name>Derived from wind speed and wind direction data and manually from logbooks stating traffic in the vicinity of the observatory</Long_Name>
</Sensor_Name>
<Source_Name>
<Long_Name>NEUMAYER III</Long_Name>
</Source_Name>
<Temporal_Coverage>
<Start_Date>2025-01-01</Start_Date>
<Stop_Date>2025-12-31</Stop_Date>
</Temporal_Coverage>
<Data_Set_Progress>Complete</Data_Set_Progress>
<Spatial_Coverage>
<Southernmost_Latitude>-70.65</Southernmost_Latitude>
<Northernmost_Latitude>-70.65</Northernmost_Latitude>
<Westernmost_Longitude>-8.25</Westernmost_Longitude>
<Easternmost_Longitude>-8.25</Easternmost_Longitude>
</Spatial_Coverage>
<Access_Constraints>unrestricted</Access_Constraints>
<Use_Constraints>CC-BY-4.0: Creative Commons Attribution 4.0 International</Use_Constraints>
<Data_Set_Language>English</Data_Set_Language>
<Originating_Center>Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven</Originating_Center>
<Data_Center>
<Data_Center_Name>
<Short_Name>PANGAEA</Short_Name>
<Long_Name>Data Publisher for Earth &amp; Environmental Science</Long_Name>
</Data_Center_Name>
<Data_Center_URL>https://www.pangaea.de/</Data_Center_URL>
<Personnel>
<Role>Data Center Contact</Role>
<First_Name>Michael</First_Name>
<Last_Name>Diepenbroek</Last_Name>
<Email>info@pangaea.de</Email>
<Contact_Address>
<Address>Leobener Str.</Address>
<City>Bremen</City>
<Province_or_State>Bremen</Province_or_State>
<Postal_Code>28359</Postal_Code>
<Country>Germany</Country>
</Contact_Address>
</Personnel>
</Data_Center>
<Distribution>
<Distribution_Media>online</Distribution_Media>
<Distribution_Size>5731348 data points</Distribution_Size>
<Distribution_Format>text/tab-separated-values</Distribution_Format>
</Distribution>
<Summary>The main task of the Neumayer Aerosol and Trace Gas (former Air Chemistry) Observatory at Neumayer III Station is to provide continuous, year-round as well as long-term data records for important gaseous and particulate trace components of the troposphere. The data set reports on long term atmospheric observations (aerosol scattering and back scattering coefficient, surface ozone, and aerosol particle number concentration) at the Air Chemistry Observatory (Neumayer III, Antarctica) between 1 January 2025 and 31 December 2025, measured about 5-7 m above ground with 60 sec resolution. For additional information about the observatory visit homepage: https://www.awi.de/en/science/long-term-observations/atmosphere/antarctic-neumayer/air-chemistry.html ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.995757"!</Summary>
<Related_URL>
<URL>http://en.wikipedia.org/wiki/ISO_8601</URL>
<Description>DATE/TIME</Description>
</Related_URL>
<Related_URL>
<URL>http://www.awi.de/en/infrastructure/stations/neumayer_station/observatories/air_chemistry_observatory/technical_aspects/</URL>
<Description>Neumayer_SPUSO</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.17815/jlsrf-2-152</URL>
<Description>NEUMAYER III</Description>
</Related_URL>
<Related_URL>
<URL>https://registry.o2a-data.de/items/8240</URL>
<Description>Condensation particle counter (CPC), TSI, 3775</Description>
</Related_URL>
<Related_URL>
<URL>https://sensor.awi.de/?id=8263</URL>
<Description>Nephelometer TSI 3563</Description>
</Related_URL>
<Related_URL>
<URL>https://sensor.awi.de/?id=8266</URL>
<Description>Surface ozone analyzer ansyco O341M</Description>
</Related_URL>
<Parent_DIF>PANGAEA_961235</Parent_DIF>
<Metadata_Name>DIF</Metadata_Name>
<Metadata_Version>9.4</Metadata_Version>
<DIF_Creation_Date>2026-07-02</DIF_Creation_Date>
<Last_DIF_Revision_Date>2026-07-02</Last_DIF_Revision_Date>
</DIF>
