<?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_968002</Entry_ID>
<Entry_Title>Auxiliary data from SIMBA-type sea ice mass balance buoy 2018T52</Entry_Title>
<Data_Set_Citation>
<Dataset_Creator>Hoppmann, Mario; Belter, Hans Jakob; Riemann-Campe, Kathrin; Cheng, Bin</Dataset_Creator>
<Dataset_Title>Auxiliary data from SIMBA-type sea ice mass balance buoy 2018T52</Dataset_Title>
<Dataset_Release_Date>2026-03-12</Dataset_Release_Date>
<Dataset_Publisher>PANGAEA</Dataset_Publisher>
<Data_Presentation_Form>Dataset</Data_Presentation_Form>
<Online_Resource>https://doi.pangaea.de/10.1594/PANGAEA.968002</Online_Resource>
</Data_Set_Citation>
<Personnel>
<Role>Investigator</Role>
<First_Name>Mario</First_Name>
<Last_Name>Hoppmann</Last_Name>
<Email>mario.hoppmann@awi.de</Email>
</Personnel>
<Discipline>
<Discipline_Name>Earth Science</Discipline_Name>
</Discipline>
<Parameters>
<Detailed_Variable>DATE/TIME</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>LATITUDE</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>LONGITUDE</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Pressure, atmospheric</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Temperature, air</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Tilt angle</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Compass bearing</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Quality flag, position</Detailed_Variable>
</Parameters>
<ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
<Keyword>2018T52; FMI_0502</Keyword>
<Keyword>Autonomous buoy</Keyword>
<Keyword>Ice mass balance</Keyword>
<Keyword>SAMS Ice Mass Balance buoy</Keyword>
<Keyword>Temperature thermistor</Keyword>
<Keyword>TICE/6_2018T52</Keyword>
<Temporal_Coverage>
<Start_Date>2018-09-14</Start_Date>
<Stop_Date>2020-07-04</Stop_Date>
</Temporal_Coverage>
<Data_Set_Progress>Complete</Data_Set_Progress>
<Spatial_Coverage>
<Southernmost_Latitude>71.58148</Southernmost_Latitude>
<Northernmost_Latitude>89.306866</Northernmost_Latitude>
<Westernmost_Longitude>-27.749746</Westernmost_Longitude>
<Easternmost_Longitude>172.562533</Easternmost_Longitude>
</Spatial_Coverage>
<Project>
<Short_Name>meereisportal.de</Short_Name>
<Long_Name>Current sea ice maps for Arctic and Antarctic</Long_Name>
</Project>
<Project>
<Short_Name>AWI_PhyOce</Short_Name>
<Long_Name>Physical Oceanography @ AWI</Long_Name>
</Project>
<Project>
<Short_Name>AWI_SeaIce</Short_Name>
<Long_Name>Sea Ice Physics @ AWI</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>39425 data points</Distribution_Size>
<Distribution_Format>text/tab-separated-values</Distribution_Format>
</Distribution>
<Reference>Preußer, Andreas; Nicolaus, Marcel; Hoppmann, Mario (2025): Snow depth, sea ice thickness and interface temperatures derived from measurements of SIMBA buoy 2018T52 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.973382</Reference>
<Reference>Autonomous measurements of sea ice properties of buoy 2018T52 [webpage]. SEAICE Portal, https://data.meereisportal.de/relaunch/buoy.php?lang=en&amp;active-tab1=method&amp;active-tab2=buoy&amp;buoyname=2018T52&amp;singlemap=</Reference>
<Reference>Buoy Deployment Report 2018T52. https://download.pangaea.de/reference/125876/attachments/2018T52_deployment.pdf</Reference>
<Summary>Temperature and heating-induced temperature difference profiles were measured through the atmosphere, sea ice, and ocean using a SIMBA-type sea ice mass balance buoy equipped with a several meter long thermistor chain. The present dataset was recorded by SIMBA 2018T52 (original name FMI_0502) installed on drifting sea ice in the Arctic Ocean during the expedition Fedorov Transdrift XXIV (TICE) in 2018. Data is available between 2018-09-14 08:30:00 and 2020-07-04 08:00:00. The thermistor chain was Variable 5 m long and included 241 sensors with a regular spacing of 2 cm. The resulting time series includes the evolution of temperature and temperature differences at 30 s and 120 s during a heating cycle of 120 s as a function of location, depth and time. The sampling intervals were usually between hourly and daily, but were most frequently configured to 6 hours for temperature, and 24 hours for temperature differences. In addition to temperatures and geographic location, barometric pressure, ~1 m air temperature, instrument tilt, and compass heading were measured. The present dataset was processed as follows: obvious inconsistencies (missing values) and unrealistic values of GPS position have been removed. This instrument was deployed as part of the project FMI. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.968002"!</Summary>
<Related_URL>
<URL>http://en.wikipedia.org/wiki/ISO_6709</URL>
<Description>LATITUDE</Description>
</Related_URL>
<Related_URL>
<URL>http://en.wikipedia.org/wiki/ISO_6709</URL>
<Description>LONGITUDE</Description>
</Related_URL>
<Related_URL>
<URL>http://en.wikipedia.org/wiki/ISO_8601</URL>
<Description>DATE/TIME</Description>
</Related_URL>
<Related_URL>
<URL>https://data.meereisportal.de/relaunch/buoy.php?lang=en&amp;active-tab1=method&amp;active-tab2=buoy&amp;buoyname=2018T52&amp;singlemap=</URL>
<Description>Autonomous measurements of sea ice properties of buoy 2018T52</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.pangaea.de/10.1594/PANGAEA.973382</URL>
<Description>Snow depth, sea ice thickness and interface temperatures derived from measurements of SIMBA buoy 2018T52</Description>
</Related_URL>
<Related_URL>
<URL>https://www.awi.de/en/about-us/organisation/staff/single-view/mario-hoppmann.html</URL>
</Related_URL>
<Related_URL>
<URL>https://www.awi.de/en/science/climate-sciences/physical-oceanography.html</URL>
<Description>AWI_PhyOce</Description>
</Related_URL>
<Related_URL>
<URL>https://www.awi.de/en/science/climate-sciences/sea-ice-physics.html</URL>
<Description>AWI_SeaIce</Description>
</Related_URL>
<Related_URL>
<URL>https://www.meereisportal.de/en/</URL>
<Description>meereisportal.de</Description>
</Related_URL>
<Related_URL>
<URL>https://www.sams-enterprise.com/simba/</URL>
<Description>SAMS Ice Mass Balance buoy</Description>
</Related_URL>
<Parent_DIF>PANGAEA_967901</Parent_DIF>
<Metadata_Name>DIF</Metadata_Name>
<Metadata_Version>9.4</Metadata_Version>
<DIF_Creation_Date>2026-03-12</DIF_Creation_Date>
<Last_DIF_Revision_Date>2026-06-17</Last_DIF_Revision_Date>
</DIF>
