/* DATA DESCRIPTION:
Citation:	Heuzé, Céline; Kuznetsov, Ivan; Kong, Bin; Schaffer, Janin; Karam, Salar (2026): De-trended bottom temperature from the deep Arctic measured using autonomous Tpop buoys deployed during MOSAiC during RV POLARSTERN cruises PS122/2, PS122/3 and PS122/5 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.991547
Abstract:	A series of Tpop bottom temperature sensors manufactured by the University of Rhode Island (contact: Randolph Watts <randywatts@uri.edu>) were deployed during legs 2, 3 and 5 of MOSAiC, in the deep Central Actic, from January 2020 to September 2020. They recorded the temperature at approximately 10 m above the seafloor with an hourly resolution from their deployment till they surfaced automatically on 1 September 2021 and sent their data over iridium. They are provided here calibrated against the MOSAiC ship CTD (Tippenhauer et al., 2023, DOI:10.1594/PANGAEA.959963). Due to a large but of unknown magnitude sensor drift compared to the measured signal, they are here provided entirely de-trended. Any natural, real trend would have been removed by the process. The precision of Tpops 60 and 66 is 10 times that of the others (0.1 mK compared to 1 mK) because they beached in the North Atlantic; the data could be retrieved from the SD card instead of iridium only.
Keyword(s):	Abyssal plain; Arctic; Autonomous buoy; MOSAIC_PO; Temperature
Related to:	Haas, Christian; Rabe, Benjamin (2023): The Expedition PS122/2 of the Research Vessel POLARSTERN to the Arctic Ocean in 2019/2020. (preprint) Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Bremerhaven, Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, hdl:10013/epic.a9b9fb18-60bc-4550-ba71-10399aa90524
	Kanzow, Torsten; Damm, Ellen (2023): The Expedition PS122/3 of the Research Vessel POLARSTERN to the Arctic Ocean in 2020. (preprint) Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Bremerhaven, Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, hdl:10013/epic.58b0f57c-f075-4b24-8b76-07d3f0eec87d
	Rabe, Benjamin; Heuzé, Céline; Regnery, Julia; Aksenov, Yevgeny; Allerholt, Jacob; Athanase, Marylou; Bai, Youcheng; Basque, Chris; Bauch, Dorothea; Baumann, Till; Chen, Dake; Cole, Sylvia T; Craw, Lisa; Davies, Andrew; Damm, Ellen; Dethloff, Klaus; Divine, Dmitry V; Doglioni, Francesca; Ebert, Falk; Fang, Ying-Chih; Fer, Ilker; Fong, Allison A; Gradinger, Rolf; Granskog, Mats A; Graupner, Rainer; Haas, Christian; He, Hailun; He, Yan; Hoppmann, Mario; Janout, Markus A; Kadko, David; Kanzow, Torsten; Karam, Salar; Kawaguchi, Yusuke; Koenig, Zoé; Kong, Bin; Krishfield, Richard A; Krumpen, Thomas; Kuhlmey, David; Kuznetsov, Ivan; Lan, Musheng; Laukert, Georgi; Lei, Ruibo; Li, Tao; Torres-Valdés, Sinhué; Lin, Lina; Lin, Long; Liu, Hailong; Liu, Na; Loose, Brice; Ma, Xiaobing; McKay, Rosalie; Mallet, Maria; Mallett, Robbie D C; Maslowski, Wieslaw; Mertens, Christian; Mohrholz, Volker; Muilwijk, Morven; Nicolaus, Marcel; O'Brien, Jeffrey K; Perovich, Donald K; Ren, Jian; Rex, Markus; Ribeiro, Natalia; Rinke, Annette; Schaffer, Janin; Schuffenhauer, Ingo; Schulz, Kirstin; Shupe, Matthew D; Shaw, William; Sokolov, Vladimir; Sommerfeld, Anja; Spreen, Gunnar; Stanton, Timothy; Stephens, Mark; Su, Jie; Sukhikh, Natalia; Sundfjord, Arild; Thomisch, Karolin; Tippenhauer, Sandra; Toole, John M; Vredenborg, Myriel; Walter, Maren; Wang, Hangzhou; Wang, Lei; Wang, Yuntao; Wendisch, Manfred; Zhao, Jinping; Zhou, Meng; Zhu, Jialiang (2022): Overview of the MOSAiC expedition: Physical oceanography. Elementa - Science of the Anthropocene, 10(1), 00062, https://doi.org/10.1525/elementa.2021.00062
	Tippenhauer, Sandra; Vredenborg, Myriel; Heuzé, Céline; Ulfsbo, Adam; Rabe, Benjamin; Granskog, Mats A; Allerholt, Jacob; Balmonte, John Paul; Campbell, Robert G; Castellani, Giulia; Chamberlain, Emelia; Creamean, Jessie; D'Angelo, Alessandra; Dietrich, Ulrike; Droste, Elise Sayana; Eggers, Lena; Fang, Ying-Chih; Fong, Allison A; Gardner, Jessie; Graupner, Rainer; Grosse, Julia; He, Hailun; Hildebrandt, Nicole; Hoppe, Clara Jule Marie; Hoppmann, Mario; Kanzow, Torsten; Karam, Salar; Koenig, Zoé; Kong, Bin; Kuhlmey, David; Kuznetsov, Ivan; Lan, Musheng; Liu, Hailong; Mallet, Maria; Mohrholz, Volker; Muilwijk, Morven; Müller, Oliver; Olsen, Lasse Mørk; Rember, Robert; Ren, Jian; Sakinan, Serdar; Schaffer, Janin; Schmidt, Katrin; Schuffenhauer, Ingo; Schulz, Kirstin; Shoemaker, Katyanne; Spahic, Susanne; Sukhikh, Natalia; Svenson, Anders; Torres-Valdés, Sinhué; Torstensson, Anders; Wischnewski, Laura; Zhuang, Yanpei (2023): Physical oceanography based on ship CTD during POLARSTERN cruise PS122 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.959963
Project(s):	Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) (URI: https://mosaic-expedition.org/)
Funding:	Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI) (URI: https://www.awi.de/), grant/award no. AFMOSAiC-1_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate
	Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI) (URI: https://www.awi.de/), grant/award no. AWI_PS122_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC
	Swedish Research Council (VR), grant/award no. 2018-03859_VR: Why is the deep Arctic Ocean Warming? (URI: https://www.vr.se/english/swecris.html#/project/2018-03859_VR)
Coverage:	MEDIAN LATITUDE: 86.626900 * MEDIAN LONGITUDE: 55.907600 * SOUTH-BOUND LATITUDE: 83.935800 * WEST-BOUND LONGITUDE: 13.650000 * NORTH-BOUND LATITUDE: 88.742000 * EAST-BOUND LONGITUDE: 114.260600
	DATE/TIME START: 2020-01-12T21:00:00 * DATE/TIME END: 2020-09-13T20:00:00
	MINIMUM ELEVATION: -4301.5 m * MAXIMUM ELEVATION: -4301.5 m
Event(s):	PS122/2_99-113 (MOSAiC_Tpop_66) * LATITUDE: 87.144100 * LONGITUDE: 114.260600 * DATE/TIME: 2020-01-12T21:00:00 * O2A REGISTRY URI: https://registry.o2a-data.de/items/5418 * LOCATION: Arctic Ocean * CAMPAIGN: PS122/2 (MOSAiC20192020) * BASIS: Polarstern (URI: https://doi.org/10.17815/jlsrf-3-163) * METHOD/DEVICE: Bottom temperature recorder (TPOP) * COMMENT: deployed together with PS122/2_19-56 (CTD); event was not logged in DSHIP
	PS122/2_99-114 (MOSAiC_Tpop_69) * LATITUDE: 88.391000 * LONGITUDE: 68.606800 * DATE/TIME: 2020-02-21T20:00:00 * O2A REGISTRY URI: https://registry.o2a-data.de/items/5421 * LOCATION: Arctic Ocean * CAMPAIGN: PS122/2 (MOSAiC20192020) * BASIS: Polarstern (URI: https://doi.org/10.17815/jlsrf-3-163) * METHOD/DEVICE: Bottom temperature recorder (TPOP) * COMMENT: deployed together with PS122/2_25-54 (CTD); event was not logged in DSHIP
	PS122/3_99-115 (MOSAiC_Tpop_73) * LATITUDE: 87.138500 * LONGITUDE: 17.246300 * DATE/TIME: 2020-03-15T12:00:00 * O2A REGISTRY URI: https://registry.o2a-data.de/items/5425 * LOCATION: Arctic Ocean * CAMPAIGN: PS122/3 (MOSAiC20192020) * BASIS: Polarstern (URI: https://doi.org/10.17815/jlsrf-3-163) * METHOD/DEVICE: Bottom temperature recorder (TPOP) * COMMENT: deployed together with PS122/3_31-59 (CTD); event was not logged in DSHIP
	PS122/3_99-116 (MOSAiC_Tpop_71) * LATITUDE: 84.410000 * LONGITUDE: 13.650000 * DATE/TIME: 2020-04-18T08:00:00 * O2A REGISTRY URI: https://registry.o2a-data.de/items/5423 * LOCATION: Arctic Ocean * CAMPAIGN: PS122/3 (MOSAiC20192020) * BASIS: Polarstern (URI: https://doi.org/10.17815/jlsrf-3-163) * METHOD/DEVICE: Bottom temperature recorder (TPOP) * COMMENT: deployed together with PS122/3_36-81 (CTD); event was not logged in DSHIP
	PS122/3_99-117 (MOSAiC_Tpop_67) * LATITUDE: 83.935800 * LONGITUDE: 17.466000 * DATE/TIME: 2020-05-02T08:00:00 * O2A REGISTRY URI: https://registry.o2a-data.de/items/5419 * LOCATION: Arctic Ocean * CAMPAIGN: PS122/3 (MOSAiC20192020) * BASIS: Polarstern (URI: https://doi.org/10.17815/jlsrf-3-163) * METHOD/DEVICE: Bottom temperature recorder (TPOP) * COMMENT: deployed together with PS122/3_38-56 (CTD); event was not logged in DSHIP
	PS122/5_61-165 (MOSAiC_Tpop_60) * LATITUDE: 88.741973 * LONGITUDE: 104.215916 * DATE/TIME: 2020-09-11T09:40:00 * ELEVATION: -4301.5 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/5412 * LOCATION: Arctic Ocean * CAMPAIGN: PS122/5 (MOSAiC20192020) * BASIS: Polarstern (URI: https://doi.org/10.17815/jlsrf-3-163) * METHOD/DEVICE: Bottom temperature recorder (TPOP)
Parameter(s):	Event label (Event) * PI: Heuzé, Céline (https://orcid.org/0000-0002-8850-5868, celine.heuze@gu.se)
	Other event (Other event) * PI: Heuzé, Céline (https://orcid.org/0000-0002-8850-5868, celine.heuze@gu.se)
	DATE/TIME (Date/Time) * GEOCODE * PI: Heuzé, Céline (https://orcid.org/0000-0002-8850-5868, celine.heuze@gu.se)
	LATITUDE (Latitude) * GEOCODE * PI: Heuzé, Céline (https://orcid.org/0000-0002-8850-5868, celine.heuze@gu.se)
	LONGITUDE (Longitude) * GEOCODE * PI: Heuzé, Céline (https://orcid.org/0000-0002-8850-5868, celine.heuze@gu.se)
	Binary Object (Binary) * PI: Heuzé, Céline (https://orcid.org/0000-0002-8850-5868, celine.heuze@gu.se) * METHOD/DEVICE: Bottom temperature recorder (TPOP)
	Binary Object (File Size) [Bytes] (Binary (Size)) * PI: Heuzé, Céline (https://orcid.org/0000-0002-8850-5868, celine.heuze@gu.se) * METHOD/DEVICE: Bottom temperature recorder (TPOP)
License:	Creative Commons Attribution 4.0 International (CC-BY-4.0) (URI: https://creativecommons.org/licenses/by/4.0/)
Status:	Curation Level: Enhanced curation (URI: https://wiki.pangaea.de/wiki/Curation_levels) * Processing Level: PANGAEA data processing level 3 (URI: https://wiki.pangaea.de/wiki/Processing_levels#PANGAEA_data_processing_level_3)
Size:	12 data points
Files:	All files referred to in data matrix can be downloaded in one go as ZIP <https://download.pangaea.de/dataset/991547/allfiles.zip> or TAR <https://download.pangaea.de/dataset/991547/allfiles.tar> (PANGAEA user account required). To download single files, use the filename from data matrix appended to "https://download.pangaea.de/dataset/991547/files/".
*/
Event	Other event	Date/Time	Latitude	Longitude	Binary	Binary (Size) [Bytes]
PS122/5_61-165	MOSAiC_Tpop_60	2020-09-13T20:00:00	88.7420	104.2159	Tpop_60.nc	160.6 kBytes
PS122/2_99-113	MOSAiC_Tpop_66	2020-01-12T21:00:00	87.1441	114.2606	Tpop_66.nc	260.7 kBytes
PS122/3_99-117	MOSAiC_Tpop_67	2020-05-02T08:00:00	83.9358	17.4660	Tpop_67.nc	216.4 kBytes
PS122/2_99-114	MOSAiC_Tpop_69	2020-02-21T20:00:00	88.3910	68.6068	Tpop_69.nc	243.1 kBytes
PS122/3_99-116	MOSAiC_Tpop_71	2020-04-18T08:00:00	84.4100	13.6500	Tpop_71.nc	223.8 kBytes
PS122/3_99-115	MOSAiC_Tpop_73	2020-03-15T12:00:00	87.1385	17.2463	Tpop_73.nc	228.7 kBytes
