<?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_996068</Entry_ID>
<Entry_Title>Particulate organic carbon (POC) and particulate organic nitrogen (PON) measured on water bottle samples during POLARSTERN cruise ARK-XXV/2 (PS76)</Entry_Title>
<Data_Set_Citation>
<Dataset_Creator>Nöthig, Eva-Maria; Bauerfeind, Eduard; Kraft, Angelina; Lorenzen, Christiane</Dataset_Creator>
<Dataset_Title>Particulate organic carbon (POC) and particulate organic nitrogen (PON) measured on water bottle samples during POLARSTERN cruise ARK-XXV/2 (PS76)</Dataset_Title>
<Dataset_Release_Date>2026-09-08</Dataset_Release_Date>
<Dataset_Publisher>PANGAEA</Dataset_Publisher>
<Data_Presentation_Form>Dataset</Data_Presentation_Form>
<Online_Resource>https://doi.pangaea.de/10.1594/PANGAEA.996068</Online_Resource>
</Data_Set_Citation>
<Personnel>
<Role>Investigator</Role>
<First_Name>Eva-Maria</First_Name>
<Last_Name>Nöthig</Last_Name>
<Email>eva-maria.noethig@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 of event</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Latitude of event</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Longitude of event</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Elevation of event</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Station label</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>DEPTH, water</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Carbon, organic, particulate</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Nitrogen, organic, particulate</Detailed_Variable>
</Parameters>
<ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
<Keyword>Arctic</Keyword>
<Keyword>ARK-XXV/2</Keyword>
<Keyword>CTD/Rosette</Keyword>
<Keyword>FRAM</Keyword>
<Keyword>Fram Strait</Keyword>
<Keyword>HAUSGARTEN Long Term Observatory</Keyword>
<Keyword>Particulate organic carbon</Keyword>
<Keyword>particulate organic nitrogen</Keyword>
<Keyword>PS76/098-1</Keyword>
<Keyword>PS76/102-1</Keyword>
<Keyword>PS76/111-1</Keyword>
<Keyword>PS76/120-2</Keyword>
<Keyword>PS76/122-1</Keyword>
<Keyword>PS76/124-3</Keyword>
<Keyword>PS76/129-1</Keyword>
<Keyword>PS76/132-1</Keyword>
<Keyword>PS76/138-1</Keyword>
<Keyword>PS76/139-1</Keyword>
<Keyword>PS76/157-1</Keyword>
<Keyword>PS76/166-1</Keyword>
<Keyword>PS76/170-2</Keyword>
<Keyword>PS76/174-1</Keyword>
<Keyword>PS76/175-1</Keyword>
<Keyword>PS76/176-1</Keyword>
<Keyword>PS76/178-1</Keyword>
<Keyword>PS76/181-1</Keyword>
<Keyword>PS76/182-1</Keyword>
<Keyword>PS76/184-1</Keyword>
<Keyword>PS76/185-1</Keyword>
<Keyword>PS76/194-1</Keyword>
<Keyword>PS76/196-1</Keyword>
<Keyword>PS76/198-1</Keyword>
<Keyword>PS76/200-1</Keyword>
<Keyword>PS76/201-1</Keyword>
<Keyword>PS76/204-1</Keyword>
<Keyword>PS76/210-2</Keyword>
<Keyword>PS76/211-1</Keyword>
<Keyword>PS76/216-1</Keyword>
<Keyword>PS76/220-1</Keyword>
<Keyword>PS76/223-1</Keyword>
<Keyword>PS76/224-1</Keyword>
<Keyword>PS76/227-3</Keyword>
<Keyword>PS76/229-1</Keyword>
<Keyword>PS76/231-1</Keyword>
<Keyword>PS76/233-1</Keyword>
<Keyword>PS76/235-1</Keyword>
<Keyword>PS76/237-1</Keyword>
<Keyword>PS76/239-3</Keyword>
<Sensor_Name>
<Long_Name>Element analyser CHN, Carlo Erba</Long_Name>
</Sensor_Name>
<Source_Name>
<Long_Name>Polarstern</Long_Name>
</Source_Name>
<Temporal_Coverage>
<Start_Date>2010-07-02</Start_Date>
<Stop_Date>2010-07-23</Stop_Date>
</Temporal_Coverage>
<Data_Set_Progress>Complete</Data_Set_Progress>
<Spatial_Coverage>
<Southernmost_Latitude>78.6098</Southernmost_Latitude>
<Northernmost_Latitude>79.9338</Northernmost_Latitude>
<Westernmost_Longitude>-11.9727</Westernmost_Longitude>
<Easternmost_Longitude>8.6702</Easternmost_Longitude>
<Minimum_Depth>5.0 m (DEPTH, water)</Minimum_Depth>
<Maximum_Depth>100.0 m (DEPTH, water)</Maximum_Depth>
</Spatial_Coverage>
<Project>
<Short_Name>LTO_Hausgarten</Short_Name>
<Long_Name>AWI-Hausgarten off Svalbard long-term observation</Long_Name>
</Project>
<Project>
<Short_Name>AWI_BioOce</Short_Name>
<Long_Name>Biological Oceanography @ AWI</Long_Name>
</Project>
<Project>
<Short_Name>FRAM</Short_Name>
<Long_Name>FRontiers in Arctic marine Monitoring</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>464 data points</Distribution_Size>
<Distribution_Format>text/tab-separated-values</Distribution_Format>
</Distribution>
<Reference>Soltwedel, Thomas (2010): The Expedition of the Research Vessel Polarstern to the Arctic in 2010 (ARK-XXV/2). Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 624, 111 pp, https://doi.org/10.2312/BzPM_0624_2010</Reference>
<Reference>Nöthig, Eva-Maria; Ramondenc, Simon; Haas, Antonie; Hehemann, Laura; Walter, Andreas; Bracher, Astrid; Lalande, Catherine; Metfies, Katja; Peeken, Ilka; Bauerfeind, Eduard; Boetius, Antje (2020): Summertime Chlorophyll a and Particulate Organic Carbon Standing Stocks in Surface Waters of the Fram Strait and the Arctic Ocean (1991–2015). Frontiers in Marine Science, 7, https://doi.org/10.3389/fmars.2020.00350</Reference>
<Summary>During the Polarstern cruise PS76 sea water samples (1 – 10 L) were collected from up to six different depths from the upper 100 m at CTD stations using a rosette equipped with a SEA-BIRD CTD system and 24 Niskin bottles (12 L). Seawater subsamples were filtered at low vacuum (&lt;400 mbar) on board immediately after sampling onto GF/F filters and stored at −20°C until analysis. Prior to analysis, filters were soaked in 0.1N HCl to remove inorganic carbon and subsequently dried at 60°C. POC and PON concentrations were determined with a CHN elemental analyzer as described in detail in Nöthig et al. (2020). ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.996068"!</Summary>
<Related_URL>
<URL>https://doi.org/10.17815/jlsrf-3-163</URL>
<Description>Polarstern</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.2312/BzPM_0624_2010</URL>
<Description>The Expedition of the Research Vessel Polarstern to the Arctic in 2010 (ARK-XXV/2)</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.3389/fmars.2020.00350</URL>
<Description>Summertime Chlorophyll a and Particulate Organic Carbon Standing Stocks in Surface Waters of the Fram Strait and the Arctic Ocean (1991–2015)</Description>
</Related_URL>
<Related_URL>
<URL>https://www.awi.de/en/about-us/organisation/staff/single-view/eva-maria-noethig.html</URL>
</Related_URL>
<Related_URL>
<URL>https://www.awi.de/en/science/biosciences/deep-sea-ecology-and-technology/observatories/lter-observatory-hausgarten.html</URL>
<Description>LTO_Hausgarten</Description>
</Related_URL>
<Related_URL>
<URL>https://www.awi.de/en/science/biosciences/polar-biological-oceanography.html</URL>
<Description>AWI_BioOce</Description>
</Related_URL>
<Related_URL>
<URL>https://www.awi.de/en/science/research-infrastructure/observatories/ocean-fram.html</URL>
<Description>FRAM</Description>
</Related_URL>
<Metadata_Name>DIF</Metadata_Name>
<Metadata_Version>9.4</Metadata_Version>
<DIF_Creation_Date>2026-09-08</DIF_Creation_Date>
<Last_DIF_Revision_Date>2026-10-07</Last_DIF_Revision_Date>
</DIF>
