<?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_989565</Entry_ID>
<Entry_Title>Radiosonde measurements during POLARSTERN cruise PS138</Entry_Title>
<Data_Set_Citation>
<Dataset_Creator>Schmithüsen, Holger; Otte, Frank; Wenzel, Julia</Dataset_Creator>
<Dataset_Title>Radiosonde measurements during POLARSTERN cruise PS138</Dataset_Title>
<Dataset_Release_Date>2026-02-26</Dataset_Release_Date>
<Dataset_Publisher>PANGAEA</Dataset_Publisher>
<Data_Presentation_Form>Dataset</Data_Presentation_Form>
<Online_Resource>https://doi.pangaea.de/10.1594/PANGAEA.989565</Online_Resource>
</Data_Set_Citation>
<Personnel>
<Role>Investigator</Role>
<First_Name>Holger</First_Name>
<Last_Name>Schmithüsen</Last_Name>
<Email>holger.schmithuesen@awi.de</Email>
</Personnel>
<Discipline>
<Discipline_Name>Earth Science</Discipline_Name>
</Discipline>
<Parameters>
<Detailed_Variable>Event label</Detailed_Variable>
</Parameters>
<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>ALTITUDE</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Geopotential height above sea level</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Height, geometric</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Pressure, at given altitude</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Temperature, air</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Humidity, relative</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Wind direction</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Wind speed</Detailed_Variable>
</Parameters>
<ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
<Keyword>PS138</Keyword>
<Keyword>PS138_43347</Keyword>
<Keyword>PS138_43348</Keyword>
<Keyword>PS138_43349</Keyword>
<Keyword>PS138_43351</Keyword>
<Keyword>PS138_43352</Keyword>
<Keyword>PS138_43353</Keyword>
<Keyword>PS138_43354</Keyword>
<Keyword>PS138_43355</Keyword>
<Keyword>PS138_43356</Keyword>
<Keyword>PS138_43357</Keyword>
<Keyword>PS138_43358</Keyword>
<Keyword>PS138_43359</Keyword>
<Keyword>PS138_43360</Keyword>
<Keyword>PS138_43361</Keyword>
<Keyword>PS138_43362</Keyword>
<Keyword>PS138_43363</Keyword>
<Keyword>PS138_43364</Keyword>
<Keyword>PS138_43365</Keyword>
<Keyword>PS138_43366</Keyword>
<Keyword>PS138_43367</Keyword>
<Keyword>PS138_43368</Keyword>
<Keyword>PS138_43369</Keyword>
<Keyword>PS138_43370</Keyword>
<Keyword>PS138_43371</Keyword>
<Keyword>PS138_43372</Keyword>
<Keyword>PS138_43373</Keyword>
<Keyword>PS138_43374</Keyword>
<Keyword>PS138_43375</Keyword>
<Keyword>PS138_43376</Keyword>
<Keyword>PS138_43377</Keyword>
<Keyword>PS138_43378</Keyword>
<Keyword>PS138_43379</Keyword>
<Keyword>PS138_43380</Keyword>
<Keyword>PS138_43381</Keyword>
<Keyword>PS138_43382</Keyword>
<Keyword>PS138_43383</Keyword>
<Keyword>PS138_43384</Keyword>
<Keyword>PS138_43385</Keyword>
<Keyword>PS138_43386</Keyword>
<Keyword>PS138_43387</Keyword>
<Keyword>PS138_43388</Keyword>
<Keyword>PS138_43389</Keyword>
<Keyword>PS138_43390</Keyword>
<Keyword>PS138_43391</Keyword>
<Keyword>PS138_43392</Keyword>
<Keyword>PS138_43393</Keyword>
<Keyword>PS138_43394</Keyword>
<Keyword>PS138_43395</Keyword>
<Keyword>PS138_43396</Keyword>
<Keyword>PS138_43397</Keyword>
<Keyword>PS138_43398</Keyword>
<Keyword>PS138_43399</Keyword>
<Keyword>Radiosonde</Keyword>
<Sensor_Name>
<Long_Name>Radiosonde, Vaisala, RS41-SGP</Long_Name>
</Sensor_Name>
<Source_Name>
<Long_Name>Polarstern</Long_Name>
</Source_Name>
<Temporal_Coverage>
<Start_Date>2023-08-04</Start_Date>
<Stop_Date>2023-09-29</Stop_Date>
</Temporal_Coverage>
<Data_Set_Progress>Complete</Data_Set_Progress>
<Spatial_Coverage>
<Southernmost_Latitude>56.71291</Southernmost_Latitude>
<Northernmost_Latitude>89.99923</Northernmost_Latitude>
<Westernmost_Longitude>6.5E-4</Westernmost_Longitude>
<Easternmost_Longitude>-2.6000000002568413E-4</Easternmost_Longitude>
<Minimum_Altitude>10.0 m (ALTITUDE)</Minimum_Altitude>
<Maximum_Altitude>35208.0 m (ALTITUDE)</Maximum_Altitude>
</Spatial_Coverage>
<Project>
<Short_Name>AWI_Meteo</Short_Name>
<Long_Name>Meteorological Long-Term Observations @ 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>
<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>2404224 data points</Distribution_Size>
<Distribution_Format>text/tab-separated-values</Distribution_Format>
</Distribution>
<Reference>Schmithüsen, Holger; Otte, Frank; Wenzel, Julia (2026): Radiosonde raw data measured during POLARSTERN cruise PS138, links to files [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.989519</Reference>
<Summary>The meteorological observatory Polarstern continuously performs radiosoundings during times of ship operation. Typically, there is one launch to full altitude at 12 UTC every day. Additionally, there often is a launch with a smaller balloon for forecasting purposes (helicopter operations) around 6 UTC. All data reports are distributed via global networks of the World Meteorological Organisation. All data published here is generally as recorded. Data affected by known technical issues are not contained in this record. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.989565"! ** The launch site is located 10m above sea level. The first row of each sounding holds surface data for TTT, RH, ff and dd, which is not acquired by the radiosonde. The measuring height of TTT and RH is 29m, and 39m for dd and ff. The first pressure value of each profile is derived from surface pressure measurements, reduced to the indicated altitude.</Summary>
<Related_URL>
<URL>http://en.wikipedia.org/wiki/Altitude</URL>
<Description>ALTITUDE</Description>
</Related_URL>
<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://doi.org/10.17815/jlsrf-3-163</URL>
<Description>Polarstern</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.pangaea.de/10.1594/PANGAEA.989519</URL>
<Description>Radiosonde raw data measured during POLARSTERN cruise PS138, links to files</Description>
</Related_URL>
<Related_URL>
<URL>https://en.wikipedia.org/wiki/Geopotential_height</URL>
<Description>Geopotential height above sea level</Description>
</Related_URL>
<Related_URL>
<URL>https://www.awi.de/en/science/long-term-observations.html</URL>
<Description>AWI_Meteo</Description>
</Related_URL>
<Related_URL>
<URL>https://www.awi.de/nc/ueber-uns/organisation/mitarbeiter/holger-schmithuesen.html</URL>
</Related_URL>
<Parent_DIF>PANGAEA_974768</Parent_DIF>
<Metadata_Name>DIF</Metadata_Name>
<Metadata_Version>9.4</Metadata_Version>
<DIF_Creation_Date>2026-02-26</DIF_Creation_Date>
<Last_DIF_Revision_Date>2026-06-17</Last_DIF_Revision_Date>
</DIF>
