cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.773463
title: (Table T2) Sulfur isotopes of pore water from ODP Leg 201 sites

description: Fifty-seven interstitial water samples from six sites (Ocean Drilling Program Sites 1225-1229 and 1231) in the eastern equatorial Pacific Ocean and the Peru margin were analyzed for the stable sulfur isotopic composition (34S/32S) of dissolved sulfate along with major and minor ions. With the exception of Site 1231, sulfate from the interstitial fluids (d34S values as much as 89 per mil vs. the SF6-based Vienna-Canyon Diablo troilite standard) is found at depth to be enriched in 34S with respect to modern seawater sulfate (d34S = ~21 per mil), indicating that microbial sulfate reduction (MSR) took place to different extents at all investigated sites. Deeper sediments at Sites 1228 and 1229 are additionally influenced by diffusion of a sulfate-rich brine that has already undergone sulfate reduction. The intensity of MSR depends on the availability of substrate (organic matter), sedimentation conditions, and the active bacterial community structure. Formation of isotopically heavy diagenetic barite at the sulfate-methane transition zone is expected at Sites 1227 (one front), 1229 (two fronts), and probably Site 1228. At Site 1231, the constant sulfur isotopic composition of sulfate and concentrations of minor pore water ions indicate that suboxic (essentially iron and manganese oxide based) diagenesis dominates and no net MSR occurs.
description: Supplement to: Böttcher, Michael Ernst; Ferdelman, Timothy G; Jørgensen, Bo Barker; Blake, Ruth E; Surkov, Alexander V; Claypool, George E (2006): Sulfur isotope fractionation by the deep biosphere within sediments of the eastern equatorial Pacific and Peru margin. In: Jørgensen, BB; D'Hondt, SL; Miller, DJ (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 201, 1-21
DOI: 10.1594/pangaea.896317
title: Air temperature data from the Serra da Estrela (Central Portugal) from January to December 2000, station Fraga das Penas
DOI: 10.1594/pangaea.896351
title: Radiosonde measurements from station Payerne (2015-01)
DOI: 10.1594/pangaea.896352
title: Ozone measurements from station Payerne (2015-01)

description: Location: Arosa, Switzerland; Distance from radiation site: 200 km
DOI: 10.1594/pangaea.896353
title: Other measurements at 10 m from station Payerne (2015-01)
DOI: 10.1594/pangaea.896354
title: Other measurements at 30 m from station Payerne (2015-01)
DOI: 10.1594/pangaea.896318
title: Air temperature data from the Serra da Estrela (Central Portugal) from January to December 2000, station Poios Brancos
DOI: 10.1594/pangaea.896356
title: Ultra-violet measurements from station Payerne (2015-02)
DOI: 10.1594/pangaea.896289
title: Concentrations of pollen and non-pollen palynomorphs from the sediment core XBWu-46 from Bosten Lake (Bosten Hu) covering the last 8540 years

description: Pollen and non-pollen palynomorph analysis on the sediment core XBWu-46 was done by Dieter Demske.
DOI: 10.1594/pangaea.896319
title: Air temperature data from the Serra da Estrela (Central Portugal) from January to December 2000, station Zezere ASE
DOI: 10.1594/pangaea.896357
title: Meteorological synoptical observations from station Payerne (2015-02)
DOI: 10.1594/pangaea.817300
title: (Table 1) Annual melt rates of the South Branch of Jacobshavn Isbrae between July 1984-1985

description: Photogrammetric reanalysis of 1985 aerial photos has revealed substantial submarine melting of the floating ice tongue of Jakobshavn Isbrae, west Greenland. The thickness of the floating tongue determined from hydrostatic equilibrium tapers from ~940 m near the grounding zone to ~600 m near the terminus. Feature tracking on orthophotos shows speeds on the July 1985 ice tongue to be nearly constant (~18.5 m/d), indicating negligible dynamic thinning. The thinning of the ice tongue is mostly due to submarine melting with average rates of 228 ± 49 m/yr (0.62 ± 0.13 m/d) between the summers of 1984 and 1985. The cause of the high melt rate is the circulation of warm seawater (thermal forcing of up to 4.2°C) beneath the tongue with convection driven by the substantial discharge of subglacial freshwater from the grounding zone. We believe that this buoyancy-driven convection is responsible for a deep channel incised into the sole of the floating tongue. A dramatic thinning, retreat, and speedup began in 1998 and continues today. The timing of the change is coincident with a 1.1°C warming of deep ocean waters entering the fjord after 1997. Assuming a linear relationship between thermal forcing and submarine melt rate, average melt rates should have increased by ~25% (~57 m/yr), sufficient to destabilize the ice tongue and initiate the ice thinning and the retreat that followed.
description: Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
description: Supplement to: Motyka, Roman J; Truffer, Martin; Fahnestock, Mark; Mortensen, John; Rysgaard, Søren; Howat, Ian M (2011): Submarine melting of the 1985 Jakobshavn Isbræ floating tongue and the triggering of the current retreat. Journal of Geophysical Research, 116(F1), F01007
DOI: 10.1594/pangaea.896256
title: Absolute counts of pollen and non-pollen palynomorphs from the sediment core XBWu-46 from Bosten Lake (Bosten Hu) covering the last 8540 years

description: Pollen and non-pollen palynomorph analysis on the sediment core XBWu-46 was done by Dieter Demske.
DOI: 10.1594/pangaea.896358
title: Radiosonde measurements from station Payerne (2015-02)
DOI: 10.1594/pangaea.817358
title: (Figures 2,3) Lipid composition of liver and muscles of the daubed shanny (Leptoclinus maculatus), Kongsfjorden

description: A comparative study on the lipid composition of the liver and muscles has been performed in daubed shanny caught in summer (July) in Arctic waters at three different sites (biotopes) along the north-western coast of Spitsbergen. In marine organisms living at high latitudes, lipids play an especially important role, primarily as reserve substances and as a factor influencing adaptation to severe environmental conditions. Since the ecology of daubed shanny is poorly known, the data obtained may be considered novel.
description: Concentrations are given in % of dry weight. Please note that the authors seem to mix the sample sites KB1 and KB3, it is not absolutely clear which one is at the fjords mouth and which one is located deep inside the fjord. Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
description: Supplement to: Murzina, S A; Nemova, N N; Nefedova, Z A; Falk-Petersen, Stig (2010): Effects of ecological conditions on lipid composition of the liver and muscles in the daubed shanny, Leptoclinus maculatus. Russian Journal of Ecology, 41(1), 51-54
DOI: 10.1594/pangaea.896359
title: Ozone measurements from station Payerne (2015-02)

description: Location: Arosa, Switzerland; Distance from radiation site: 200 km
DOI: 10.1594/pangaea.895787
title: Meteorological synoptical observations from station Tamanrasset (2018-10)
DOI: 10.1594/pangaea.896360
title: Other measurements at 10 m from station Payerne (2015-02)
DOI: 10.1594/pangaea.735240
title: Ozone measurements from station Payerne (2009-02)

description: Location: Arosa, Switzerland; Distance from radiation site: 200 km
DOI: 10.1594/pangaea.769715
title: (Table S2) Relative abundance of archaeal 16S rRNA genes in sediment cores

description: Deep drilling into the marine sea floor has uncovered a vast sedimentary ecosystem of microbial cells (Parkes et al., 1994, doi:10.1038/371410a0; D'Hondt et al., 2004, doi:10.1126/science.1101155). Extrapolation of direct counts of stained microbial cells to the total volume of habitable marine subsurface sediments suggests that between 56 Pg (Parkes et al., 1994, doi:10.1038/371410a0) and 303 Pg (Whitman et al., 1998) of cellular carbon could be stored in this largely unexplored habitat. From recent studies using various culture-independent techniques, no clear picture has yet emerged as to whether Archaea or Bacteria are more abundant in this extensive ecosystem (Schippers et al., doi:10.1038/nature03302; Inagaki et al., doi:10.1073/pnas.0511033103 ; Mauclaire et al., doi:10.1111/j.1472-4677.2004.00035.x; Biddle et al., doi:10.1073/pnas.0600035103). Here we show that in subsurface sediments buried deeper than 1 m in a wide range of oceanographic settings at least 87% of intact polar membrane lipids, biomarkers for the presence of live cells (Biddle et al., doi:10.1073/pnas.0600035103; Sturt et al., 2004, doi:10.1002/rcm.1378), are attributable to archaeal membranes, suggesting that Archaea constitute a major fraction of the biomass. Results obtained from modified quantitative polymerase chain reaction and slot-blot hybridization protocols support the lipid-based evidence and indicate that these techniques have previously underestimated archaeal biomass. The lipid concentrations are proportional to those of total organic carbon. On the basis of this relationship, we derived an independent estimate of amounts of cellular carbon in the global marine subsurface biosphere. Our estimate of 90 Pg of cellular carbon is consistent, within an order of magnitude, with previous estimates, and underscores the importance of marine subsurface habitats for global biomass budgets.
description: Sediment depth is given in mbsf. Archaeal 16S rRNA gene copy number ratio = archaeal 16S rRNA genes / (archaeal + bacterial 16S rRNA genes). &lt; = the value indicates the minimum archaeal 16S rRNA ratio based on the detection limit of bacterial 16S rRNA gene copy number when no bacterial signals were detected. 0 = not detected.
description: Supplement to: Lipp, Julius S; Morono, Yuki; Inagaki, Fumio; Hinrichs, Kai-Uwe (2008): Significant contribution of Archaea to extant biomass in marine subsurface sediments. Nature, 454(t207), 991-994
DOI: 10.1594/pangaea.896361
title: Other measurements at 30 m from station Payerne (2015-02)
DOI: 10.1594/pangaea.896377
title: Ultra-violet measurements from station Payerne (2015-05)
DOI: 10.1594/pangaea.896364
title: Meteorological synoptical observations from station Payerne (2015-03)
DOI: 10.1594/pangaea.896378
title: Meteorological synoptical observations from station Payerne (2015-05)
DOI: 10.1594/pangaea.896365
title: Radiosonde measurements from station Payerne (2015-03)
DOI: 10.1594/pangaea.896379
title: Radiosonde measurements from station Payerne (2015-05)
DOI: 10.1594/pangaea.896382
title: Other measurements at 30 m from station Payerne (2015-05)
DOI: 10.1594/pangaea.773452
title: (Table T2) TOC and TIC of ODP Site 201-1227 sediments
DOI: 10.1594/pangaea.773454
title: (Table T4) TOC and TIC of ODP Sites 201-1229 and 112-681 sediments
DOI: 10.1594/pangaea.773455
title: (Table T5) TOC and TIC of ODP Sites 201-1230 and 112-685 sediments
DOI: 10.1594/pangaea.896367
title: Other measurements at 10 m from station Payerne (2015-03)
DOI: 10.1594/pangaea.896429
title: Ultra-violet measurements from station Payerne (2015-06)
DOI: 10.1594/pangaea.896375
title: Other measurements at 30 m from station Payerne (2015-04)
DOI: 10.1594/pangaea.896380
title: Ozone measurements from station Payerne (2015-05)

description: Location: Arosa, Switzerland; Distance from radiation site: 200 km
DOI: 10.1594/pangaea.896430
title: Meteorological synoptical observations from station Payerne (2015-06)
DOI: 10.1594/pangaea.896431
title: Radiosonde measurements from station Payerne (2015-06)
DOI: 10.1594/pangaea.896346
title: Basic and other measurements of radiation at station Toravere (2018-10)
DOI: 10.1594/pangaea.896432
title: Ozone measurements from station Payerne (2015-06)

description: Location: Arosa, Switzerland; Distance from radiation site: 200 km
DOI: 10.1594/pangaea.896333
title: CICE output from Global Ocean Forecast System (GOFS) 3.1 for GOFS_2018112712

description: INITIALIZATION: 2018112712FORECASTS:12-hrly out to 7.5 days (t180)GRIDS:ARCu0.08 -- poleward of 40NANTu0.08 -- poleward of 49.52SPARAMETERS:hi:standard_name = "sea_ice_thickness" ;hs:standard_name = "surface_snow_thickness" ;Tsfc:standard_name = "surface_temperature_where_sea_ice" ;aice:standard_name = "sea_ice_area_fraction" ;uvel:standard_name = "eastward_sea_ice_velocity" ;vvel:standard_name = "northward_sea_ice_velocity" ;sst:standard_name = "sea_water_temperature" ;uocn:standard_name = "eastward_sea_water_velocity" ;vocn:standard_name = "northward_sea_water_velocity" ;Tair:standard_name = "air_temperature" ;strength:standard_name = "compressive_strength_of_sea_ice"
DOI: 10.1594/pangaea.896433
title: Other measurements at 10 m from station Payerne (2015-06)
DOI: 10.1594/pangaea.896434
title: Other measurements at 30 m from station Payerne (2015-06)
DOI: 10.1594/pangaea.896436
title: Ultra-violet measurements from station Payerne (2015-07)
DOI: 10.1594/pangaea.896504
title: X-ray fluorescence measurements on Lake Heihai sediment cores
DOI: 10.1594/pangaea.896437
title: Meteorological synoptical observations from station Payerne (2015-07)
DOI: 10.1594/pangaea.896438
title: Radiosonde measurements from station Payerne (2015-07)
DOI: 10.1594/pangaea.773505
title: (Table T1) DOC of interstitial waters from seven ODP Leg 201 sites

description: This report contains dissolved organic carbon (DOC) concentration data from interstitial waters collected at three open-ocean sites (1225, 1226, and 1231) and four sites cored along the Peru margin (1227, 1228, 1229, and 1230) during Ocean Drilling Program Leg 201. The sites were selected to represent a wide range of habitats for subsurface life based on organic carbon input to the sediments. Subsurface maxima of DOC at the ocean-margin sites is consistent with in situ production of DOC through active hydrolysis of particulate organic carbon. These downhole profiles agree well with the dissolved inorganic carbon (DIC) concentrations indicating complete remineralization of some fraction DOC to DIC. The open-ocean sites exhibit relatively flat downhole profiles, indicating that diagenesis is occurring at a much lower rate at these sites.
description: Supplement to: Smith, David Charles (2005): Data report: Dissolved organic carbon in interstitial waters, equatorial Pacific and Peru margin, ODP Leg 201. In: Jørgensen, BB; D'Hondt, SL; Miller, DJ (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 201, 1-10
DOI: 10.1594/pangaea.896439
title: Ozone measurements from station Payerne (2015-07)

description: Location: Arosa, Switzerland; Distance from radiation site: 200 km
DOI: 10.1594/pangaea.773513
title: (Table T1) Dissolved carbohydrate concentrations of interstitial waters from seven ODP Leg 201 sites

description: Total dissolved carbohydrates (DCHOs) were determined in interstitial waters collected at open-ocean and Peru margin sites cored during Ocean Drilling Program Leg 201. Concentrations of DCHOs ranged from 0 to ~1500 µM and showed no consistent trends between open-ocean and Peru margin sites either in the magnitude or direction of downhole interstitial water gradients. In contrast, relative DCHO concentrations (normalized to dissolved organic carbon concentrations) were higher in open-ocean vs. margin sediments. These trends are consistent with results from more shallow estuarine and nearshore continental margin sediments and may be related to changes in the overall controls on sediment organic matter remineralization with decreasing remineralization rates.
description: Supplement to: Burdige, David (2006): Data report: Dissolved carbohydrates in interstitial waters from the Equatorial Pacific and Peru margin, ODP Leg 201. In: Jørgensen, BB; D'Hondt, SL; Miller, DJ (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 201, 1-10
DOI: 10.1594/pangaea.862882
title: Monthly Arctic sea ice lead fraction in 0.5° x 0.5° resolution from SARAL/Altika altimeter, link to datasets in NetCDF 4 format

description: Sea ice leads play an essential role in ocean-ice-atmosphere exchange, in ocean circulation, geochemistry, and in ice dynamics. Their precise detection is crucial for altimetric estimations of sea ice thickness and volume. This study evaluates the performance of the SARAL/AltiKa (Satellite with ARgos and ALtiKa) altimeter to detect leads and to monitor their spatio-temporal dynamics. We show that a pulse peakiness parameter (PP) used to detect leads by Envisat RA-2 and ERS-1,-2 altimeters is not suitable because of saturation of AltiKa return echoes over the leads. The signal saturation results in loss of 6–10% of PP data over sea ice. We propose a different parameter—maximal power of waveform—and define the threshold to discriminate the leads. Our algorithm can be applied from December until May. It detects well the leads of small and medium size from 200 m to 3–4 km. So the combination of the high-resolution altimetric estimates with low-resolution thermal infra-red or radiometric lead fraction products could enhance the capability of remote sensing to monitor sea ice fracturing.
description: Spatial Coverage: 65° N - 82° N, 180° E - 180° W Spatial Resolution: 0.5° x 0.5° Temporal Coverage: April 2013 to April 2016 Temporal Resolution: 1 month Algorithm validity period: December - May. Comments: in November and June the lead fraction should be taken with caution. In July - October the algorithm fails.
description: Supplement to: Zakharova, Elena A; Fleury, Sara; Guerreiro, Kévin; Willmes, Sascha; Rémy, Frédérique; Kouraev, Alexei V; Heinemann, Günther (2015): Sea ice leads detection using SARAL/AltiKa altimeter. Marine Geodesy, 38(sup1), 522-533
DOI: 10.1594/pangaea.773361
title: (Table T5) Composition of volcanic glass and palagonite of ODP Site 200-1224 Eocene ferrobasalts

description: Element oxides in wt%.
DOI: 10.1594/pangaea.896440
title: Other measurements at 10 m from station Payerne (2015-07)
DOI: 10.1594/pangaea.773363
title: (Table T6) Composition of myrmekitic intergrowth and zeolite of ODP Site 200-1224 Eocene ferrobasalts

description: Element oxides in wt%.
DOI: 10.1594/pangaea.896441
title: Other measurements at 30 m from station Payerne (2015-07)
DOI: 10.1594/pangaea.873068
title: (Supplementary Table 1) Raw data of scan parameters of the bony labyrinth, phylogenetic values, and species informations of marsupials (Mammalia, Theria)

description: Diprotodontia represents the largest and ecologically most distinct order of marsupials occurring in Australasian being highly divers in size, locomotion, habitat preferences, feeding, and activity pattern. The spatial orientation in the habitat and therefore the three-dimensional space is detected by the vestibular system of the inner ear, more precisely by the three semicircular canals. In this study, we investigated the bony labyrinth of diprotodontian and selected non-diprotodontian marsupial mammals of almost all genera with noninvasive micro-CT scanning and 3D-reconstructions. In principal component analyses, the subterranean taxon can be separated from gliding and saltatorial taxa, whereas arboreal species can be separated from saltatorial specimens. The highest PCA loadings of this functional distinction are clearly found in the diameter of the semicircular canals, whereas the overall shape (height, width, length) of the semicircular canals is less important. Additionally, the investigated arboreal and fossorial species of South America are nested in the morphospace of the Australasian taxa. Even if a phylogenetic signal in the anatomy of the bony labyrinth cannot be excluded entirely, the main functional morphological signal of the vestibular system is found in the diameter of the semicircular canals. With the large dataset of extant marsupial mammals analysed here, the locomotion mode of extinct taxa can be inferred in future studies independent of any evidence of postcranial material.
description: Supplement to: Pfaff, Cathrin; Czerny, Stefan; Nagel, Doris; Kriwet, Jürgen (2017): Functional morphological adaptations of the bony labyrinth in marsupials (Mammalia, Theria). Journal of Morphology, 278(6), 742-749
DOI: 10.1594/pangaea.494906
title: Physical oceanography during cruise U90XX00036C_1985
DOI: 10.1594/pangaea.891211
title: Glacier inventory for the Patagonian Andes, link to shape files

description: We present a satellite-derived glacier inventory for the whole Patagonian Andes south of 45. 5°S and Tierra del Fuego including recent changes. Landsat TM/ETM+ and OLI satellite scenes were used to detect changes in the glacierized area between 1986, 2005 and 2016 for all of the 11,209 inventoried glaciers using a semi-automated procedure. Additionally we used geomorphological evidence, such as moraines and trimlines to determine the glacierized area during the Little Ice Age for almost 90% of the total glacierized area. Within the last ~150 years the glacierized area was reduced from 28,091 ± 890 km² to 22,636 ± 905 km², marking an absolute area loss of 5,455 ± 1,269 km² (19.4 ± 4.5%). For the whole study region, the annual area decrease was moderate until 1986 with 0.10 ± 0.04%/a. Afterwards the area reduction increased, reaching annual values of 0.33 ± 0.28%/a and 0.25 ± 0.50%/a for the periods of 1986-2005 and 2005-2016, respectively. There is a high variability of change rates throughout the Patagonian Andes. Small glaciers, especially in the north of the Northern Patagonian Icefield (NPI) and between the latter and the Southern Patagonian Icefield (SPI) had over all periods the highest rates of shrinkage, exceeding 0.92 ± 1.22%/a during 2005-2016. In the mountain range of the Cordillera Darwin (CD), and also accounting for small ice fields south of 52°S, highest rates of shrinkage occurred during 1986-2005, reaching values up to 0.45 ± 0.23%/a, but decreased during the 2005-2016 period. Across the Andean main crest, the eastern parts of the NPI, SPI and adjoined glaciers had in absolute values the highest area reduction exceeding 2,145 ± 486 km² since the LIA. Large calving glaciers show a smaller relative decrease rate compared to land-terminating glaciers but account for the most absolute area loss. In general, glacier shrinkage is dependent on latitude, the initial glacier area, the environment of the glacial tongue (calving or non-calving glaciers) and in parts by glacial aspect.
description: Supplement to: Meier, Wolfgang Jens-Henrik; Grießinger, Jussi; Hochreuther, Philipp; Braun, Matthias Holger (2018): An Updated Multi-Temporal Glacier Inventory for the Patagonian Andes With Changes Between the Little Ice Age and 2016. Frontiers in Earth Science, 6, 62 pp
DOI: 10.1594/pangaea.811483
title: (Table S1) Flux gate discharge and centerline discharge of Helheim, Kangerdlugssuaq and Jakobshavn glacier, Greenland

description: Acceleration of Greenland's three largest outlet glaciers, Helheim, Kangerdlugssuaq and Jakobshavn Isbræ, accounted for a substantial portion of the ice sheet's mass loss over the past decade. Rapid changes in their discharge, however, make their cumulative mass-change uncertain. We derive monthly mass balance rates and cumulative balance from discharge and surface mass balance (SMB) rates for these glaciers from 2000 through 2010. Despite the dramatic changes observed at Helheim, the glacier gained mass over the period, due primarily to the short duration of acceleration and a likely longer-term positive balance. In contrast, Jakobshavn Isbræ lost an equivalent of over 11 times the average annual SMB and loss continues to accelerate. Kangerdlugssuaq lost over 7 times its annual average SMB, but loss has returned to the 2000 rate. These differences point to contrasts in the long-term evolution of these glaciers and the danger in basing predictions on extrapolations of recent changes.
description: Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
description: Supplement to: Howat, Ian M; Ahn, Yushin; Joughin, Ian; van den Broeke, Michiel R; Lenaerts, Jan T M; Smith, Ben E (2011): Mass balance of Greenland's three largest outlet glaciers, 2000-2010. Geophysical Research Letters, 38(12), L12501