<?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_995620</Entry_ID>
<Entry_Title>Aerosol light absorption coefficients and black carbon concentrations at Neumayer for the year 2025</Entry_Title>
<Data_Set_Citation>
<Dataset_Creator>Jurányi, Zsófia; Weis, Lukas</Dataset_Creator>
<Dataset_Title>Aerosol light absorption coefficients and black carbon concentrations at Neumayer for the year 2025</Dataset_Title>
<Dataset_Release_Date>2026-06-29</Dataset_Release_Date>
<Dataset_Publisher>PANGAEA</Dataset_Publisher>
<Data_Presentation_Form>Dataset</Data_Presentation_Form>
<Online_Resource>https://doi.pangaea.de/10.1594/PANGAEA.995620</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>Duration</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Aerosol absorption at 637 nm</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Black carbon, aerosol</Detailed_Variable>
</Parameters>
<ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
<Keyword>aerosol</Keyword>
<Keyword>aerosol absorption coefficient</Keyword>
<Keyword>Air chemistry observatory</Keyword>
<Keyword>black carbon</Keyword>
<Keyword>Neumayer_based</Keyword>
<Keyword>Neumayer_SPUSO</Keyword>
<Keyword>Neumayer Station</Keyword>
<Keyword>Spuso</Keyword>
<Sensor_Name>
<Long_Name>Multi angle absorption spectrometer MAAP5012</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>2026-01-01</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>
<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>26278 data points</Distribution_Size>
<Distribution_Format>text/tab-separated-values</Distribution_Format>
</Distribution>
<Summary>We operate a multi angle absorption photometer MAAP (Model 5012, Thermo Electron Corp.) in the Aerosol and Trace Gas Observatory at Neumayer III Station since March 2006 ongoing. This instrument measures the atmospheric aerosol light absorption coefficient (mainly caused by black carbon, BC) by sampling ambient aerosol glass fiber filter tape. The intake of the aerosol inlet can be found on top of the observatory at approx. 5-7 m above ground. The measured absorption coefficients abs(637) refer to a wavelength of 637 nm. Raw data were originally sampled in one-minute resolution. Finally, hourly averaged MAAP data are presented here. We also provide BC concentrations (ng/m³) derived from the absorption coefficients using the specific BC mass absoption coefficient of 6.6 m²/g. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.995620"!</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>
<Parent_DIF>PANGAEA_987702</Parent_DIF>
<Metadata_Name>DIF</Metadata_Name>
<Metadata_Version>9.4</Metadata_Version>
<DIF_Creation_Date>2026-06-29</DIF_Creation_Date>
<Last_DIF_Revision_Date>2026-06-29</Last_DIF_Revision_Date>
</DIF>
