<?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_995175</Entry_ID>
<Entry_Title>Aircraft measurements of spectral solar upward radiances in the Arctic during the COMPEX-EC campaign 2025</Entry_Title>
<Data_Set_Citation>
<Dataset_Creator>Jäkel, Evelyn; Klingebiel, Marcus; Müller, Joshua</Dataset_Creator>
<Dataset_Title>Aircraft measurements of spectral solar upward radiances in the Arctic during the COMPEX-EC campaign 2025</Dataset_Title>
<Dataset_Release_Date>2026-05-29</Dataset_Release_Date>
<Dataset_Publisher>PANGAEA</Dataset_Publisher>
<Data_Presentation_Form>Dataset</Data_Presentation_Form>
<Online_Resource>https://doi.pangaea.de/10.1594/PANGAEA.995175</Online_Resource>
</Data_Set_Citation>
<Personnel>
<Role>Investigator</Role>
<First_Name>Evelyn</First_Name>
<Last_Name>Jäkel</Last_Name>
<Email>e.jaekel@uni-leipzig.de</Email>
</Personnel>
<Discipline>
<Discipline_Name>Earth Science</Discipline_Name>
</Discipline>
<Parameters>
<Detailed_Variable>Event label</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Optional event label</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Date/Time of event</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>netCDF file</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>netCDF file (File Size)</Detailed_Variable>
</Parameters>
<ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
<Keyword>Aircraft</Keyword>
<Keyword>Arctic</Keyword>
<Keyword>Arctic surface</Keyword>
<Keyword>clouds</Keyword>
<Keyword>P5-256_COMPEX-EC_2025</Keyword>
<Keyword>P5-256_COMPEX-EC_2025_2504040201</Keyword>
<Keyword>P5-256_COMPEX-EC_2025_2504060301</Keyword>
<Keyword>P5-256_COMPEX-EC_2025_2504070401</Keyword>
<Keyword>P5-256_COMPEX-EC_2025_2504080501</Keyword>
<Keyword>P5-256_COMPEX-EC_2025_2504110601</Keyword>
<Keyword>P5-256_COMPEX-EC_2025_2504130701</Keyword>
<Keyword>P5-256_COMPEX-EC_2025_2504150801</Keyword>
<Keyword>Polar 5</Keyword>
<Keyword>radiances</Keyword>
<Keyword>RF01</Keyword>
<Keyword>RF02</Keyword>
<Keyword>RF03</Keyword>
<Keyword>RF04</Keyword>
<Keyword>RF05</Keyword>
<Keyword>RF06</Keyword>
<Keyword>RF07</Keyword>
<Sensor_Name>
<Long_Name>Albedometer, Spectral Modular Airborne Radiation measurement sysTem, SMART [0.3 to 2.2 μm]</Long_Name>
</Sensor_Name>
<Source_Name>
<Long_Name>POLAR 5</Long_Name>
</Source_Name>
<Temporal_Coverage>
<Start_Date>2025-04-04</Start_Date>
<Stop_Date>2025-04-15</Stop_Date>
</Temporal_Coverage>
<Data_Set_Progress>Complete</Data_Set_Progress>
<Spatial_Coverage>
<Southernmost_Latitude>67.821645</Southernmost_Latitude>
<Northernmost_Latitude>67.822004</Northernmost_Latitude>
<Westernmost_Longitude>20.327129</Westernmost_Longitude>
<Easternmost_Longitude>20.327969</Easternmost_Longitude>
</Spatial_Coverage>
<Project>
<Short_Name>AC3</Short_Name>
<Long_Name>Arctic Amplification</Long_Name>
</Project>
<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>7 data points</Distribution_Size>
<Distribution_Format>text/tab-separated-values</Distribution_Format>
</Distribution>
<Reference>Mech, Mario; Klingebiel, Marcus; Crewell, Susanne; Ehrlich, André; Bruder, Lena; Buhren, Christian; Gebhard, Eduard; van Gelder, Lars; Jansen, Friedhelm; Ludwig, Dennis; Müller, Joshua (2026): Collection of data sets for the Clouds over cOMPlEX environment - EarthCARE (COMPEX-EC) campaign, carried out in Kiruna in spring 2025 [dataset bibliography]. PANGAEA, https://doi.org/10.1594/PANGAEA.983187</Reference>
<Summary>During the COMPEX-EC campaign performed in April 2025 spectral upward radiances were measured in the Norwegian Sea area using the Spectral Modular Airborne Radiation measurement sysTem (SMART-Albedometer). The data set provides solar spectra (400 - 900 nm) along the flight tracks of seven flights performed by the Polar 5 aircraft in 2 Hz resolution. The nadir-looking radiance inlet has an approximate field of view of 2°. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.995175"!</Summary>
<Related_URL>
<URL>https://doi.org/10.17815/jlsrf-2-153</URL>
<Description>POLAR 5</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.5065/D6H70CW6</URL>
<Description>netCDF file</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.5065/D6H70CW6</URL>
<Description>netCDF file (File Size)</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.pangaea.de/10.1594/PANGAEA.983187</URL>
<Description>Collection of data sets for the Clouds over cOMPlEX environment - EarthCARE (COMPEX-EC) campaign, carried out in Kiruna in spring 2025</Description>
</Related_URL>
<Related_URL>
<URL>https://gepris.dfg.de/gepris/projekt/268020496</URL>
<Description>AC3</Description>
</Related_URL>
<Metadata_Name>DIF</Metadata_Name>
<Metadata_Version>9.4</Metadata_Version>
<DIF_Creation_Date>2026-05-29</DIF_Creation_Date>
<Last_DIF_Revision_Date>2026-06-27</Last_DIF_Revision_Date>
</DIF>
