cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.919383
title: Cloudnet LWC during PS106

description: The dataset contains daily nc-files of the Cloudnet liquid water content during Polarstern cruise PS106.The data is retrieved using the instrument synergystic approach Cloudnet (Illingworth, 2007 doi:10.1175/BAMS-88-6-883).This variable was calculated for the profiles where the \"categorization\" data has diagnosed that liquid water is present and liquid water path is available from a coincident microwave radiometer. The model temperature and pressure were used to estimate thetheoretical adiabatic liquid water content gradient for each cloud base and the adiabatic liquid water content is then scaled so that its integral matches the radiometer measurement so that the liquid water content now follows a quasi-adiabatic profile. If the liquid layer is detected by the lidar only, there is the potential for cloud top height to be underestimated and so if the adiabatic integrated liquid water content is less than that measured by the microwave radiometer, the cloud top is extended until the adiabatic integrated liquid water content agrees with the value measured by the microwave radiometer.Missing values indicate that either1) a liquid water layer was diagnosed but no microwave radiometer data was available,2) a liquid water layer was diagnosed but the microwave radiometer data was unreliable; this may be because a melting layer was present in the profile, or because the retrieved lwp was unphysical (values of zero are not uncommon for thin supercooled liquid layers), or3) that rain is present in the profile and therefore, the vertical extent of liquid layers is difficult to ascertain.
description: This is an updated version of this data set: https://doi.pangaea.de/10.1594/PANGAEA.900106
DOI: 10.1594/pangaea.920513
title: Total dead (without cytoplasm) planktonic foraminifera from the M124 cruise plankton multinets, Subtropical South Atlantic
DOI: 10.1594/pangaea.919386
title: Cloudnet ice particles effective radius during PS106

description: The dataset contains daily nc-files of the Cloudnet ice particles effective radius during Polarstern cruise PS106 based on:- 35.5 GHz Cloud radar MIRA.The data is retrieved using the instrument synergystic approach Cloudnet (Illingworth, 2007 doi:10.1175/BAMS-88-6-883 ).This variable was calculated from visible extinction coefficient and ice water content using the following analytical formula:r_eff[\\mum] = 3*IWC[g cm-3] / (2 rho_i \\alpha[m-1]) 10**6with rho_i=0.917g cm-3 the desity of solid ice.This retrieval is based on an analytical relationship between IWC and \\alpha. However both parameters have been retrieved following Hogan 2006 (doi:10.1175/JAM2340.1 ) by using two different empirical formulas based on the same measured quantity, the 35.5-GHz radar reflectivity factor.
description: This is an updated version of this data set: https://doi.pangaea.de/10.1594/PANGAEA.900111
DOI: 10.1594/pangaea.919399
title: Cloudnet liquid droplet effective radius during PS106

description: The dataset contains daily nc-files of the Cloudnet liqiud particles effective radius during Polarstern cruise PS106.The data is retrieved using the instrument synergystic approach Cloudnet (Illingworth, 2007 doi:10.1175/BAMS-88-6-883 ).This variable was calculated for the profiles where the \"categorization\" data has diagnosed that liquid water is present the cloud droplet effective radius is calculated after Frisch et al 2002 (doi:10.1175/1520-0426%282002%29019%3C0835%3ATROSCD%3E2.0.CO%3B2 ), relating Z with r_eff by assuming a lognormal size distribution, and its width. The number concentration required to represent the size distribution is derived by scaling the LWP measured with microwave radiometer over the observed (single) cloud layer.
description: This is an updated version of this data set: https://doi.pangaea.de/10.1594/PANGAEA.900243
DOI: 10.1594/pangaea.919452
title: Cloudnet IWC during PS106

description: The dataset contains daily nc-files of the Cloudnet ice water content during Polarstern cruise PS106 based on:- 35.5 GHz Cloud radar MIRA.The data is retrieved using the instrument synergystic approach Cloudnet (Illingworth, 2007 doi:10.1175/BAMS-88-6-883 ).This variable was calculated from the 35.5-GHz radar reflectivity factor after correction for gaseous attenuation, and temperature taken from a forecast model, using the following empirical formula:log10(iwc[g m-3]) = 0.000242Z[dBZ]T[degC] + 0.0699Z[dBZ] + -0.0186T[degC] + -1.63 (Hogan, 2006 doi:10.1175/JAM2340.1 ).In this formula Z is taken to be defined such that all frequencies of radar would measure the same Z in Rayleigh scattering ice. However, the radar is more likely to have been calibrated such that all frequencies would measure the same Z in Rayleigh scattering liquid cloud at 0 degrees C. The measured Z is therefore multiplied by|K(liquid,0degC,35GHz)|^2/0.93 = 0.9441before applying this formula.The formula has been used where the \"categorization\" data has diagnosed that the radar echo is due to ice, but note that in some cases supercooled drizzle will erroneously be identified as ice. Missing data indicates either that ice cloud was present but it was only detected by the lidar so its ice water content could not be estimated, or that there was rain below the ice associated with uncertain attenuation of the reflectivities in the ice.Note that where microwave radiometer liquid water path was available it was used to correct the radar for liquid attenuation when liquid cloud occurred below the ice; this is indicated a value of 3 in the iwc_retrieval_status variable. There is some uncertainty in thisprodedure which is reflected by an increase in the associated values in the iwc_error variable.When microwave radiometer data were not available and liquid cloud occurred below the ice, the retrieval was still performed but its reliability is questionable due to the uncorrected liquid water attenuation. This is indicated by a value of 2 in the iwc_retrieval_status variable, and an increase in the value of the iwc_error variable.
description: This is an updated version of this data set: https://doi.pangaea.de/10.1594/PANGAEA.900246
DOI: 10.1594/pangaea.919463
title: Cloudnet target classification during PS106

description: The dataset contains daily nc-files of the Cloudnet target classification during Polarstern cruise PS106 based on:- 35.5 GHz Cloud radar MIRA,- Multiwavelength Raman polarization lidar PollyXT,- Polarstern radiosonde data- OceanRAIN optical disdrometer ODM470,- Microwave radiometer.The data is retrieved using the instrument synergystic approach Cloudnet (Illingworth, 2007 https://journals.ametsoc.org/doi/10.1175/BAMS-88-6-883 ).This variable is a simplification of the bitfield \"category_bits\" in the target categorization and data quality dataset. It provides the 9 main atmospheric target classifications that can be distinguished by radar and lidar.Target_classification:definition = 0: Clear sky, 1: Cloud droplets only, 2: Drizzle or rain, 3: Drizzle/rain & cloud droplets, 4: Ice, 5: Ice & supercooled droplets, 6: Melting ice, 7: Melting ice & cloud droplets, 8: Aerosol, 9: Insects.
description: This is an updated version of this data set: https://doi.pangaea.de/10.1594/PANGAEA.900245
DOI: 10.1594/pangaea.920757
title: XRF-scan (Fe, Mn and Al) from sediment cores of the POLARSTERN cruise PS92
DOI: 10.1594/pangaea.920758
title: Porewater geochemistry from sediment cores of the POLARSTERN cruise PS92
DOI: 10.1594/pangaea.920759
title: pH analyis of porewater from sediment cores of the POLARSTERN cruise PS92
DOI: 10.1594/pangaea.920245
title: Total living (with cytoplasm) planktonic foraminifera from the M124 cruise plankton multinets, Subtropical South Atlantic
DOI: 10.1594/pangaea.919749
title: Individual foraminiferal oxygen respiration rates from the Peruvian OMZ from sediment cores of METEOR cruise M137
DOI: 10.1594/pangaea.919750
title: Individual foraminiferal denitrification rates from the Peruvian OMZ from sediment cores of METEOR cruise M137
DOI: 10.1594/pangaea.919815
title: Documentation of sediment sampling at multicorer station PS111_13-2 (video in *.mov format, 90 MB)
DOI: 10.1594/pangaea.921094
title: Euphausiid catch numbers of PS 82 (ANT XXIX/9) from rectangular midwater trawl sampling

description: Count numbers and filtered volumes of euphausiids (Euphausia superba, Euphausia crystallorophias, Thysanoessa macrura) caught with a Rectangular Midwater trawl (RMT) during PS82. The volumes are in m^3.
description: M-RMT has 3 pairs of Nets, which can be opened / closed at different depths.Each net couple consist of one RMT-8 (approx. 8 m2 mouth area) and one RMT-1 (approx. 1 m2 mouth area). Therefore, the parameter can take values 8-1, 8-2, 8-3, 1-1, 1-2, 1-3.
DOI: 10.1594/pangaea.919816
title: Documentation of sediment sampling at multicorer station PS111_13-3 (video in *.mov format, 80 MB)
DOI: 10.1594/pangaea.919817
title: Documentation of sediment sampling at multicorer station PS111_27-1 (video in *.mov format, 115 MB)
DOI: 10.1594/pangaea.919818
title: Documentation of sediment sampling at multicorer station PS111_29-3 (video in *.mov format, 178 MB)
DOI: 10.1594/pangaea.919820
title: Documentation of sediment sampling at multicorer station PS111_42-1 (video in *.mov format, 148 MB)
DOI: 10.1594/pangaea.919821
title: Documentation of sediment sampling at multicorer station PS111_47-2 (video in *.mov format, 142 MB)
DOI: 10.1594/pangaea.919822
title: Documentation of sediment sampling at multicorer station PS111_53-3 (video in *.mov format, 106 MB)
DOI: 10.1594/pangaea.919823
title: Documentation of sediment sampling at multicorer station PS111_74-3 (video in *.mov format, 116 MB)
DOI: 10.1594/pangaea.919825
title: Documentation of sediment sampling at multicorer station PS111_80-3 (video in *.mov format, 97 MB)
DOI: 10.1594/pangaea.919830
title: Documentation of sediment sampling at multicorer station PS111_29-2 (video in *.mov format, 141 MB)
DOI: 10.1594/pangaea.920105
title: Silicon isotopes in surface waters during POLARSTERN cruise PS94 (ARK-XXIX/3) in 2015

description: In this study we present dissolved and particulate silicon isotope results in surface waters obtained as part of the GEOTRACES central Arctic Ocean section GN04 (2015) onboard POLARSTERN cruise PS94 (ARK-XXIX/3).The aim of the study was to investigate in more detail the influence of the Transpolar Drift on the Si cycle in the AO comparing areas with and without its influence.
description: Flag scheme in accordance to GEOTRACES quality flag policy. https://www.geotraces.org/geotraces-quality-flag-policy/Notes:*calculated δ30Si-DSi: Dissolved Silicon Isotope Composition calculated from δ29Si-DSi multiplied by 1.93 (De La Rocha, 2002)* calculated 2SD δ30Si-DSi: Dissolved Silicon standard deviation calculated from δ29Si-DSi standard deviation multiplied by 1.93 (De La Rocha, 2002)* calculated δ30Si-bSiO2: Biogenic Silica Isotope Composition calculated from δ29Si-bSiO2 multiplied by 1.93 (De La Rocha, 2002)* calculated 2SD δ30Si-bSiO2: Biogenic Silica standard deviation calculated from δ29Si-bSiO2 standard deviation multiplied by 1.93 (De La Rocha, 2002)
DOI: 10.1594/pangaea.920518
title: Living adults planktonic foraminifera from the M124 cruise plankton multinets, Subtropical South Atlantic
DOI: 10.1594/pangaea.920551
title: Living pre-adults planktonic foraminifera from the M124 cruise plankton multinets, Subtropical South Atlantic
DOI: 10.1594/pangaea.920617
title: Phosphate and total NO3+NO2 of sediment core M92_0220-1 after freeze/thaw experiments

description: In these experiments, the sediment was frozen and thawed (twice) and then filtered and nutrients measured.
DOI: 10.1594/pangaea.920693
title: Phosphate, silicate and total NO3+NO2 of sediment core M92_0110-1 after freeze/thaw experiments
DOI: 10.15468/dl.hj6fs2
title: Occurrence Download

description: A dataset containing 633 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Phoenix loureiroi var. loureiroi)",
 "HasCoordinate is true"
 ]
}

 The dataset includes 633 records from 8 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0094301-240506114902167/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.920695
title: Phosphate, silicate and total NO3+NO2 of sediment core M92_0165-1 after freeze/thaw experiments
DOI: 10.1594/pangaea.920696
title: Phosphate, silicate and total NO3+NO2 of sediment core M92_0208-1 after freeze/thaw experiments
DOI: 10.1594/pangaea.920697
title: Phosphate, silicate and total NO3+NO2 of sediment core M92_0247-1 after freeze/thaw experiments
DOI: 10.1594/pangaea.920699
title: Phosphate, silicate and total NO3+NO2 of sediment core M92_0248-1 after freeze/thaw experiments
DOI: 10.1594/pangaea.920702
title: Biogenic silica (Opal) of sediment cores during METEOR cruise M92
DOI: 10.1594/pangaea.921949
title: XCTD measurements of station C3_00008, West Greenland fjords
DOI: 10.1594/pangaea.921950
title: XCTD measurements of station C3_00010, West Greenland fjords
DOI: 10.1594/pangaea.921951
title: XCTD measurements of station C3_00012, West Greenland fjords
DOI: 10.1594/pangaea.921952
title: XCTD measurements of station C3_00013, West Greenland fjords
DOI: 10.1594/pangaea.921953
title: XCTD measurements of station C3_00014, West Greenland fjords
DOI: 10.1594/pangaea.921954
title: XCTD measurements of station C3_00015, West Greenland fjords
DOI: 10.1594/pangaea.921955
title: XCTD measurements of station C3_00016, West Greenland fjords
DOI: 10.1594/pangaea.921956
title: XCTD measurements of station C3_00017, West Greenland fjords
DOI: 10.1594/pangaea.922194
title: Excess 210Pb of sediment cores during METEOR cruise M92
DOI: 10.1594/pangaea.921999
title: Stable O and C isotopes of Globorotalia inflata in sediment cores GeoB6209-2, GeoB6220-1, GeoB13862-1, GeoB6311-2, GeoB2722-1

description: Measurements were performed on groups of 3 shells in core GeoB13862-1 and on groups of 3-10 shells in the core top samples using a Thermo MAT 253plus coupled to a Kiel IV device at MARUM. Analytical precision was determined through repeat measurements of an in-house carbonate standard (Solnhofen limestone), which was calibrated to the NBS 19 calcite standard, and amounted to 0.06 and 0.03 ‰ for δ18O and δ13C, respectively.
description: Ages in core GeoB13862-1 from 10.1002/2014PA002677.
DOI: 10.1594/pangaea.922709
title: Particulate geochemistry of sediment core M137_595-1
DOI: 10.1594/pangaea.922027
title: Fractional abunandces of isoprenoid GDGTs in surface sediments off Indonesia

description: Fractional abunances of isoprenoid GDGTs calculated from the peak areas detected for the molecule peaks in the HPLC chromatograms. These data are an addition to the already archived TEX86 and UK'37 data in core-top sediments from off Indonesia (doi:10.1594/PANGAEA.823057).
DOI: 10.1594/pangaea.922715
title: Particulate geochemistry of sediment core M137_614-1-K1
DOI: 10.1594/pangaea.923048
title: Thorium and Uranium in sediment profile GIK23065

description: long sample intervals; depthcorr is mean depth on common depth scale (+16 cm offset for GIK23065-3)
DOI: 10.1594/pangaea.922717
title: Particulate geochemistry of sediment core M137_642-1-K1
DOI: 10.1594/pangaea.923051
title: Thorium excess in sediment core PS1235-1

description: 230Thex was digitized manually from a print version of Eisenhauer et al. 1990; the error was estimated from typical alphaspectrometric uncertainities, taking absolute activities into account.
DOI: 10.1594/pangaea.922718
title: Particulate geochemistry of sediment core M137_651-1
DOI: 10.1594/pangaea.922719
title: Particulate geochemistry of sediment core M137_656-1-K1
DOI: 10.1594/pangaea.922725
title: Particulate geochemistry of sediment core M137_692-1
DOI: 10.1594/pangaea.922727
title: Particulate geochemistry of sediment core M137_684-1-K1
DOI: 10.1594/pangaea.922728
title: Particulate geochemistry of sediment core M137_696-1-K1
DOI: 10.1594/pangaea.922729
title: Particulate geochemistry of sediment core M137_739-1-K1
DOI: 10.1594/pangaea.922730
title: Particulate geochemistry of sediment core M137_754-1-K1
DOI: 10.1594/pangaea.922476
title: Particulate geochemistry of sediment core M92_026-1
DOI: 10.1594/pangaea.922731
title: Particulate geochemistry of sediment core M137_772-1

description: Cores were incubated for experiments. C2 = control core, R2 = replicate core
DOI: 10.1594/pangaea.922732
title: Particulate geochemistry of sediment core M137_777-1
DOI: 10.1594/pangaea.922733
title: Particulate geochemistry of sediment core M137_787-1
DOI: 10.1594/pangaea.922734
title: Particulate geochemistry of sediment core M137_791-1-K1
DOI: 10.1594/pangaea.923362
title: Particulate geochemistry of sediment core M136_574-1 MUC10B

description: 574MUC10A, 574MUC10B: two cores sectioned: with and without a thick surface bacterial mat.
DOI: 10.1594/pangaea.922735
title: Particulate geochemistry of sediment core M137_817-1-K1
DOI: 10.1594/pangaea.922736
title: Particulate geochemistry of sediment core M137_830-1-K1
DOI: 10.1594/pangaea.922518
title: Porewater geochemistry of sediment core M136_543-1

description: Replicate Information: 1: pore water sample from pore water pressA: pore water sample from pore water pressRh: pore water sample from rhizonsZ: sample centrifugedGB: sample treated in glove bagSP: syringe samples form BIGOPP: sample for physical propertiesA/Br: sample for bromide experimentP: pore water pressK1: BIGO chamber 1K2: BIGO chamber 2AA: measured with autoanalyzerF/T/Z: Frozen/thawed/centrifuged
DOI: 10.1594/pangaea.922526
title: Particulate geochemistry of sediment core M136_338-1

description: Replicate Information: 1: pore water sample from pore water pressA: pore water sample from pore water pressRh: pore water sample from rhizonsZ: sample centrifugedGB: sample treated in glove bagSP: syringe samples form BIGOPP: sample for physical propertiesA/Br: sample for bromide experimentP: pore water pressK1: BIGO chamber 1K2: BIGO chamber 2AA: measured with autoanalyzerF/T/Z: Frozen/thawed/centrifuged
DOI: 10.1594/pangaea.922528
title: Particulate geochemistry of sediment core M136_342-1

description: Replicate Information: 1: pore water sample from pore water pressA: pore water sample from pore water pressRh: pore water sample from rhizonsZ: sample centrifugedGB: sample treated in glove bagSP: syringe samples form BIGOPP: sample for physical propertiesA/Br: sample for bromide experimentP: pore water pressK1: BIGO chamber 1K2: BIGO chamber 2AA: measured with autoanalyzerF/T/Z: Frozen/thawed/centrifuged
DOI: 10.1594/pangaea.922529
title: Particulate geochemistry of sediment core M136_409-1

description: Replicate Information: 1: pore water sample from pore water pressA: pore water sample from pore water pressRh: pore water sample from rhizonsZ: sample centrifugedGB: sample treated in glove bagSP: syringe samples form BIGOPP: sample for physical propertiesA/Br: sample for bromide experimentP: pore water pressK1: BIGO chamber 1K2: BIGO chamber 2AA: measured with autoanalyzerF/T/Z: Frozen/thawed/centrifuged
DOI: 10.1594/pangaea.923113
title: Whale sightings during POLARSTERN cruise PS96 (ANT-XXXI/2)

description: Data on whale distribution and abundance in the polar oceans is rather sparse, as implementing the standard surveying method, line-transect surveys, is challenging and costly. To overcome this problem, we initiated a program to electronically log all opportunistic cetacean sightings during all Polarstern expeditions through the nautical officer on watch. Opportunistic (visual) sightings by naked eye were logged during Polarstern Cruise PS96 (Cape Town - Punta Arenas) by the nautical officer on duty using a customized Software package (WALOG, WhAleLOGger) installed on a touch screen laptop located on the ship's bridge. Species were identified by naked eye or handheld binoculars (7x50) to the lowest possible taxonomical level and assigned a “certainty” level of identification. The number of animals were counted if possible or estimated for larger groups. Whenever identification to species level was not possible, the next identifiable taxonomical category was assigned. Information on sighting position, date and time are automatically transferred from the ship's DAVIS-Ship System (https://dship.awi.de/) to the WALOG software at the time of logging. Photographs were taken if possible for retrospective analysis. All data of acquired sightings were retrospectively validated by a marine biologist and converted to a standard format. To this end, plausibility of sighting time, location, standardization of species names, eventual comments added at the time of sighting, as well as additional information such as photographs (if available) were checked either to verify or improve species identification. Datasets are used in species distribution modelling and to inform interested parties about occurrences.
description: Date/Time is given in UTC. Certainty of identification: definite if observer clearly identified the species. The number of individuals is binned according to the options given in the data acquisition software: 1, 2, 3, less equal 5, less equal 10, greater than 10, greater than 20. More precise values may exist, due to observer comments.
DOI: 10.1594/pangaea.922530
title: Particulate geochemistry of sediment core M136_412-1

description: Replicate Information: 1: pore water sample from pore water pressA: pore water sample from pore water pressRh: pore water sample from rhizonsZ: sample centrifugedGB: sample treated in glove bagSP: syringe samples form BIGOPP: sample for physical propertiesA/Br: sample for bromide experimentP: pore water pressK1: BIGO chamber 1K2: BIGO chamber 2AA: measured with autoanalyzerF/T/Z: Frozen/thawed/centrifuged
DOI: 10.1594/pangaea.922531
title: Particulate geochemistry of sediment core M136_415-1

description: Replicate Information: 1: pore water sample from pore water pressA: pore water sample from pore water pressRh: pore water sample from rhizonsZ: sample centrifugedGB: sample treated in glove bagSP: syringe samples form BIGOPP: sample for physical propertiesA/Br: sample for bromide experimentP: pore water pressK1: BIGO chamber 1K2: BIGO chamber 2AA: measured with autoanalyzerF/T/Z: Frozen/thawed/centrifuged
DOI: 10.1594/pangaea.922532
title: Particulate geochemistry of sediment core M136_426-1

description: Replicate Information: 1: pore water sample from pore water pressA: pore water sample from pore water pressRh: pore water sample from rhizonsZ: sample centrifugedGB: sample treated in glove bagSP: syringe samples form BIGOPP: sample for physical propertiesA/Br: sample for bromide experimentP: pore water pressK1: BIGO chamber 1K2: BIGO chamber 2AA: measured with autoanalyzerF/T/Z: Frozen/thawed/centrifuged
DOI: 10.1594/pangaea.922533
title: Particulate geochemistry of sediment core M136_430-1

description: Replicate Information: 1: pore water sample from pore water pressA: pore water sample from pore water pressRh: pore water sample from rhizonsZ: sample centrifugedGB: sample treated in glove bagSP: syringe samples form BIGOPP: sample for physical propertiesA/Br: sample for bromide experimentP: pore water pressK1: BIGO chamber 1K2: BIGO chamber 2AA: measured with autoanalyzerF/T/Z: Frozen/thawed/centrifuged
DOI: 10.1594/pangaea.922534
title: Particulate geochemistry of sediment core M136_460-1

description: Replicate Information: 1: pore water sample from pore water pressA: pore water sample from pore water pressRh: pore water sample from rhizonsZ: sample centrifugedGB: sample treated in glove bagSP: syringe samples form BIGOPP: sample for physical propertiesA/Br: sample for bromide experimentP: pore water pressK1: BIGO chamber 1K2: BIGO chamber 2AA: measured with autoanalyzerF/T/Z: Frozen/thawed/centrifuged