<?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_995980</Entry_ID>
<Entry_Title>50 Hz KT19 infrared temperature observations from the BACSAM II aircraft campaign with Polar 6</Entry_Title>
<Data_Set_Citation>
<Dataset_Creator>Köhler, Laura; Jurányi, Zsófia</Dataset_Creator>
<Dataset_Title>50 Hz KT19 infrared temperature observations from the BACSAM II aircraft campaign with Polar 6</Dataset_Title>
<Dataset_Release_Date>2026-07-29</Dataset_Release_Date>
<Dataset_Publisher>PANGAEA</Dataset_Publisher>
<Data_Presentation_Form>Dataset</Data_Presentation_Form>
<Online_Resource>https://doi.pangaea.de/10.1594/PANGAEA.995980</Online_Resource>
</Data_Set_Citation>
<Personnel>
<Role>Investigator</Role>
<First_Name>Laura</First_Name>
<Last_Name>Köhler</Last_Name>
<Email>laura.koehler@awi.de</Email>
</Personnel>
<Discipline>
<Discipline_Name>Earth Science</Discipline_Name>
</Discipline>
<Parameters>
<Detailed_Variable>Event label</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>airborne</Keyword>
<Keyword>Aircraft</Keyword>
<Keyword>Arctic</Keyword>
<Keyword>Atmosphere</Keyword>
<Keyword>boundary layer</Keyword>
<Keyword>P6-247_BACSAM2_2024</Keyword>
<Keyword>P6-247_BACSAM2_2024_2404070101</Keyword>
<Keyword>P6-247_BACSAM2_2024_2404100201</Keyword>
<Keyword>P6-247_BACSAM2_2024_2404110301</Keyword>
<Keyword>P6-247_BACSAM2_2024_2404130401</Keyword>
<Keyword>P6-247_BACSAM2_2024_2404130502</Keyword>
<Keyword>P6-247_BACSAM2_2024_2404130603</Keyword>
<Keyword>P6-247_BACSAM2_2024_2404150701</Keyword>
<Keyword>P6-247_BACSAM2_2024_2404170801</Keyword>
<Keyword>P6-247_BACSAM2_2024_2404230901</Keyword>
<Keyword>P6-247_BACSAM2_2024_2404241001</Keyword>
<Keyword>P6-247_BACSAM2_2024_2404251101</Keyword>
<Keyword>P6-247_BACSAM2_2024_2404261201</Keyword>
<Keyword>P6-247_BACSAM2_2024_2404291301</Keyword>
<Keyword>Polar 6</Keyword>
<Keyword>Surface Temperature</Keyword>
<Sensor_Name>
<Long_Name>Infrared radiometer, Heitronics, KT19</Long_Name>
</Sensor_Name>
<Source_Name>
<Long_Name>POLAR 6</Long_Name>
</Source_Name>
<Temporal_Coverage>
<Start_Date>2024-04-07</Start_Date>
<Stop_Date>2024-04-29</Stop_Date>
</Temporal_Coverage>
<Data_Set_Progress>Complete</Data_Set_Progress>
<Spatial_Coverage>
<Southernmost_Latitude>78.245931</Southernmost_Latitude>
<Northernmost_Latitude>81.596627</Northernmost_Latitude>
<Westernmost_Longitude>-16.663061</Westernmost_Longitude>
<Easternmost_Longitude>15.502002</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>13 data points</Distribution_Size>
<Distribution_Format>text/tab-separated-values</Distribution_Format>
</Distribution>
<Reference>Köhler, Laura (2026): BACSAM II: Turbulence and aerosol in situ aircraft observations in the Arctic with Polar 6 and T-Bird (Version v1.0.0) [software]. GitHub, https://github.com/LauraKoehler/bacsam2_processing</Reference>
<Reference>Köhler, Laura (2026): polair [software]. Zenodo, https://doi.org/10.5281/ZENODO.21065057</Reference>
<Summary>The BACSAM II aircraft campaign, conducted with the polar research aircraft Polar 6 and the towed body T-Bird, took place from 3 April to 2 May 2024. It was based in Longyearbyen, Svalbard. In total, 11 low-level research flights and two transit flights were conducted, covering the region around Svalbard and north of Greenland. The KT19 was installed on the underside of Polar 6, facing the ground. The datasets present the KT19 observations, consisting of 50 Hz temperature measurements that correspond to surface temperatures during low-level, straight flight segments, together with the corresponding GPS positions. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.995980"!</Summary>
<Related_URL>
<URL>https://doi.org/10.17815/jlsrf-2-153</URL>
<Description>POLAR 6</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.org/10.5281/ZENODO.21065057</URL>
<Description>polair</Description>
</Related_URL>
<Related_URL>
<URL>https://gepris.dfg.de/project/268020496</URL>
<Description>AC3</Description>
</Related_URL>
<Related_URL>
<URL>https://github.com/LauraKoehler/bacsam2_processing</URL>
<Description>BACSAM II: Turbulence and aerosol in situ aircraft observations in the Arctic with Polar 6 and T-Bird (Version v1.0.0)</Description>
</Related_URL>
<Parent_DIF>PANGAEA_995979</Parent_DIF>
<Metadata_Name>DIF</Metadata_Name>
<Metadata_Version>9.4</Metadata_Version>
<DIF_Creation_Date>2026-07-29</DIF_Creation_Date>
<Last_DIF_Revision_Date>2026-07-29</Last_DIF_Revision_Date>
</DIF>
