cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.982259
title: Continuous optical chlorophyll-a and turbidity data along RV SONNE cruise SO305

description: Underway optical chlorophyll-a and turbidity data were collected along the cruise track with Sea-Bird Scientific ECO FLNTU sensors installed within two autonomous measurement systems, called self-cleaning monitoring boxes (SMBs). The SMBs measure alternatingly. While one box is measuring, the other one is being cleaned. The boxes switched generally every 12 hours which was reduced to 3 hours for about one week during the cruise. The water inlet for the SMBs is at about 4 m below sea surface. Online monitoring of the NRT data stream revealed large offsets between the sensors and negative chlorophyll-a values for one sensor. Consequently, the sensors in the measurement containers were exchanged a few times by the scientific-technical service during the research cruise for testing purposes, including a spare sensor. Analysis of the parallel operation time of the two measurement boxes showed that all three sensors are highly correlated, but a significant offset was observed for one sensor. The chlorophyll-a and turbidity data were therefore corrected to align the sensors and obtain a consistent and non-negative time series. Chlorophyll-a and turbidity data were both quality-controlled before and after sensor alignment. The data were then compared to chlorophyll-a and suspended particulate matter (SPM) determined in the lab from discrete water samples. A calibration was obtained based on comparison with the HPLC total chlorophyll-a by splitting the time series into two different time periods based on different water masses. The time period at the beginning of the cruise corresponds to the open Indian Ocean and the second time period to the Bengal Shelf. Resulting calibrated chlorophyll-a matches well the HPLC chlorophyll-a. Turbidity values were compared to discrete SPM samples. The correlation between these is low, probably due to methodological sensitivity in these clear waters. A comparison with satellite data using the GlobColour CHL1 and SPM-OC5 product is additionally provided for both parameters. Details on all quality control steps, calibration and the comparison with satellite data can be found in the data processing report. The resulting data set contains the original data and corresponding quality flags achieved by the quality control algorithm as well as the calibrated data with corresponding quality flag for chlorophyll-a and the corrected data through sensor alignment with corresponding quality flag for turbidity. The data source is given through the name of the active SMB. The data set contains data during transit time and station work. We recommend to use ship's speed to filter for only transit data.
DOI: 10.1594/pangaea.971658
title: Drone air quality measurements during flight MesSBAR_2021-09-23_flight7

description: In the project MesSBAR (Automated airborne measurement of pollution in the near-earth atmosphere in urban areas), unmanned aerial systems and specially adapted air quality measurement technology were developed to carry out measurements upwind and downwind of pollution sources in urban areas, industrial plants and traffic routes.To validate and optimise the measurement technology and flight systems, two short measurement campaigns were carried out in 2021 near Wesseling next to the motorway A555 (North Rhine-Westphalia - Germany). There, the Federal Highway Research Institute (BASt) operates two measurement containers next to the motorway, which were used for the validation. Various flight profiles were tested. It was found that only for vertical ascents at a constant speed, useful results of the air quality measurements could be determined. The measurement data from these flights are published in this data publication.
description: Measuring chamber (MC) vs. Inlet measurements:The MC is located inside the measurement payload and is supplied with the air taken in at the inlet by means of a pump. We did this in order to obtain an undisturbed air sample. In order to be able to detect differences between the air at the inlet and in the measuring chamber, we placed two identical temperature and humidity sensors, one at the inlet and one in the measuring chamber. We have used the measured variables with Inlet and MC to differentiate between them.
DOI: 10.1594/pangaea.971659
title: Drone air quality measurements during flight MesSBAR_2021-09-22_flight9

description: In the project MesSBAR (Automated airborne measurement of pollution in the near-earth atmosphere in urban areas), unmanned aerial systems and specially adapted air quality measurement technology were developed to carry out measurements upwind and downwind of pollution sources in urban areas, industrial plants and traffic routes.To validate and optimise the measurement technology and flight systems, two short measurement campaigns were carried out in 2021 near Wesseling next to the motorway A555 (North Rhine-Westphalia - Germany). There, the Federal Highway Research Institute (BASt) operates two measurement containers next to the motorway, which were used for the validation. Various flight profiles were tested. It was found that only for vertical ascents at a constant speed, useful results of the air quality measurements could be determined. The measurement data from these flights are published in this data publication.
description: Measuring chamber (MC) vs. Inlet measurements:The MC is located inside the measurement payload and is supplied with the air taken in at the inlet by means of a pump. We did this in order to obtain an undisturbed air sample. In order to be able to detect differences between the air at the inlet and in the measuring chamber, we placed two identical temperature and humidity sensors, one at the inlet and one in the measuring chamber. We have used the measured variables with Inlet and MC to differentiate between them.
DOI: 10.1594/pangaea.902483
title: Age analysis from sediment core KNR178-48JPC
DOI: 10.25574/21025
title: Chandra X-ray Observatory ObsId 21025

description: LOW SURFACE BRIGHTNESS GALAXIES AND THE BLACK HOLE OCCUPATION FRACTION
DOI: 10.1594/pangaea.961684
title: Water quality and geochemical data from Laihianjoki and Sulvanjoki flocculation experiments in April 2021

description: Water samples were collected from the Laihianjoki and Sulvanjoki rivers in April 2021, using a bucket and transferred to 30 L acid-washed containers. The sampling was conducted during springtime, a few weeks after the peak flow caused by snow smelt. The collected river waters were immediately analyzed for pH, temperature, electrical conductivity, and salinity using a WTW Multiline P4 meter. The samples were then transported to the Tvärminne field station of the University of Helsinki, where laboratory experiments began within 24 hours.A large-volume bucket experiment was conducted to study the dynamics of suspended particle size distribution and associated nutrients during the transition from fresh to brackish water conditions. Artificial seawater with salinity of 66.8 g kg-1 was added to river water in an acid-washed basin, while changes in water chemistry and particle size distribution were continuously monitored using a multiparameter water quality sonde and a laser-diffraction particle size analyzer. Additionally, small-volume jar experiments were performed to collect particle samples under controlled conditions using a flocculator apparatus. The collected material was analyzed, and the filtrate was used for further analysis of colored dissolved organic matter.Triplicate samples from flocculator experiments were acidified and analyzed for metal concentrations using an inductively coupled plasma optical emission spectrometer (ICP-OES) and an inductively coupled plasma mass spectrometer (ICP-MS). Filtrate samples were measured for colored dissolved organic matter (CDOM) absorbance and fluorescence using a spectrophotometer and a spectrofluorometer, respectively. Particulate organic carbon (POC) and particulate organic-bound metals were analyzed in filter retentate samples using a mass spectrometer and ICP-MS. Total suspended matter (TSM) was determined by filtering and weighing samples. The apparent particle density was calculated by dividing TSM by volumetric concentrations measured by a laser-diffraction particle size analyzer. However, the density results are biased as particles larger than the detection limit of the instrument are not included in the analysis.
DOI: 10.1594/pangaea.946957
title: One year measurements of vertical profiles of wind speed and wind direction from 40 to 500 m at Clausthal, Harz Mountains, Germany

description: A Doppler windLiDAR (WindCube WLS8-8 [1] from the manufacturer Leosphere, France) was installed at Clausthal (51°47'58.48''N 10°21'7.42'′E, 595 m altitude) in the Harz Mountains, Germany, and operated continuously for a period of nearly an entire year (from 29 October 2014 to 26 October 2015). The wind LiDAR provided the vertical profiles of wind speed and wind direction, measured by means of the Doppler Beam Swinging technique. Four lines of sight are sequentially scanned by a 1.54 µm pulsed fiber laser to perform the geometrical computation of the 3D wind vector components. From the raw data, the average horizontal wind speed and wind direction is calculated routinely for intervals of 10 min. The wind LiDAR continuously collected profiles of wind speed and wind direction at 24 altitudes (40 m to 500 m, with a vertical resolution of 20 m). Data gaps are mainly caused by low clouds and fog, which cannot be penetrated by the laser pulses.
DOI: 10.1594/pangaea.961685
title: Suspension particle size and water quality data from Laihianjoki and Sulvanjoki flocculation experiments in April 2021

description: Water samples were collected from the Laihianjoki and Sulvanjoki rivers in April 2021, using a bucket and transferred to 30 L acid-washed containers. The sampling was conducted during springtime, a few weeks after the peak flow caused by snow smelt. The collected river waters were immediately analyzed for pH, temperature, electrical conductivity, and salinity using a WTW Multiline P4 meter. The samples were then transported to the Tvärminne field station of the University of Helsinki, where laboratory experiments began within 24 hours.A large-volume bucket experiment was conducted to study the dynamics of suspended particle size distribution and associated nutrients during the transition from fresh to brackish water conditions. Artificial seawater with salinity of 66.8 g kg-1 was added to river water in an acid-washed basin, while changes in water chemistry and particle size distribution were continuously monitored using a multiparameter water quality sonde and a laser-diffraction particle size analyzer. Additionally, small-volume jar experiments were performed to collect particle samples under controlled conditions using a flocculator apparatus. The collected material was analyzed, and the filtrate was used for further analysis of colored dissolved organic matter.Triplicate samples from flocculator experiments were acidified and analyzed for metal concentrations using an inductively coupled plasma optical emission spectrometer (ICP-OES) and an inductively coupled plasma mass spectrometer (ICP-MS). Filtrate samples were measured for colored dissolved organic matter (CDOM) absorbance and fluorescence using a spectrophotometer and a spectrofluorometer, respectively. Particulate organic carbon (POC) and particulate organic-bound metals were analyzed in filter retentate samples using a mass spectrometer and ICP-MS. Total suspended matter (TSM) was determined by filtering and weighing samples. The apparent particle density was calculated by dividing TSM by volumetric concentrations measured by a laser-diffraction particle size analyzer. However, the density results are biased as particles larger than the detection limit of the instrument are not included in the analysis.
DOI: 10.25574/21026
title: Chandra X-ray Observatory ObsId 21026

description: LOW SURFACE BRIGHTNESS GALAXIES AND THE BLACK HOLE OCCUPATION FRACTION
DOI: 10.1594/pangaea.902486
title: Age analysis from sediment core KNR178-56JPC
DOI: 10.1594/pangaea.902489
title: 210Pb dating from sediment core KNR178-56JPC
DOI: 10.1594/pangaea.901383
title: Age tie points of ODP Site 177-1094
DOI: 10.1594/pangaea.926648
title: Seawater carbonate chemistry and coral-coral competition

description: As carbon dioxide (CO2) levels increase, coral reefs and other marine systems will be affected by the joint stressors of ocean acidification (OA) and warming. The effects of these two stressors on coral physiology are relatively well studied, but their impact on biotic interactions between corals are poorly understood. While coral-coral interactions are less common on modern reefs, it is important to document the nature of these interactions to better inform restoration strategies in the face of climate change. Using a mesocosm study, we evaluated whether the combined effects of ocean acidification and warming alter the competitive interactions between the common coral Porites astreoides and two other mounding corals (Montastraea cavernosa or Orbicella faveolata) common in the Caribbean. After 7 days of direct contact, P. astreoides suppressed the photosynthetic potential of M. cavernosa by 100% in areas of contact under both present (28.5°C and 400 μatm pCO2) and predicted future (30.0°C and 1000 μatm pCO2) conditions. In contrast, under present conditions M. cavernosa reduced the photosynthetic potential of P. astreoides by only 38% in areas of contact, while under future conditions reduction was 100%. A similar pattern occurred between P. astreoides and O. faveolata at day 7 post contact, but by day 14, each coral had reduced the photosynthetic potential of the other by 100% at the point of contact, and O. faveolata was generating larger lesions on P. astreoides than the reverse. In the absence of competition, OA and warming did not affect the photosynthetic potential of any coral. These results suggest that OA and warming can alter the severity of initial coral-coral interactions, with potential cascading effects due to corals serving as foundation species on coral reefs.
description: In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2020) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2020-12-25.
DOI: 10.25574/21027
title: Chandra X-ray Observatory ObsId 21027

description: LOW SURFACE BRIGHTNESS GALAXIES AND THE BLACK HOLE OCCUPATION FRACTION
DOI: 10.1594/pangaea.902481
title: Age analysis from sediment core OCE326-MC29D
DOI: 10.1594/pangaea.924184
title: One year measurements of vertical profiles of wind speed and wind direction from 40 to 500 m at Heligoland, German Bight, North Sea, Germany

description: A Doppler Wind-LiDAR (WindCube WLS8-8 (Toch, 2013) from the manufacturer Leosphere, France) was installed at the island Heligoland (54° 10' 38,12"N,7° 53'30,90" E installed almost at sea level ) in the German Bight, North Sea, and operated continuously for a period of an entire year. For system specifications please refer to Toch (2013). The Wind-LiDAR was installed on the site of the Alfred-Wegener-Institute near the port of Heligoland. The terrain is flat for winds from south, south-west and south-east without obstacles that could affect the wind profile above 40 m. However, for north-west and north directions a plateau level of about 50 m exists, which could influence the wind at the lowest measuring heights. The Wind-LiDAR provided the vertical profiles of the wind speed components, measured by means of the Doppler Beam Swinging technique. Four lines of sight are sequentially scanned by a 1.54 µm pulsed fiber laser to perform the geometrical computation of the 3D wind vector components. From the raw data, the average horizontal wind speed and wind direction is calculated routinely for intervals of 10 min. The Wind-LiDAR was in operation from 24 March2017to 10 April2018 and continuously collected profiles of wind speed and wind direction at 25 altitudes (40 m to 500 m, with a vertical resolution of 10 m up to 100 m, 20 m up to 400 m, and 50 m up to 500 m). The data availability ranged from 95.3% at 40m to 70.4% at 500m for the entire measurement campaign. Data gaps are mainly caused by low clouds and fog, which cannot be penetrated by the laser pulses. During the measurements, the system was oriented with a heading offset of -17° in relation to geographical North. Thus, all direction values in the dataset must be corrected by -17° in order to obtain wind directions in a North-oriented coordinate system.
description: Acknowledgements: The LiDAR observations have been funded by the projects WIPAFF and AVATAR, German Federal Ministry for Economic Affairs and Energy, grant numbers 0325783B / 20Y1501F. The installation and remote supervision of the wind lidar have been performed by Christian Krüger of UL International. The authors would like to thank Heino Peters, Andreas Schmidt, Helgo Denker, Eva-Maria Brodte and Karen Wiltshire for the opportunity to install the Wind-LiDAR at the site of the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research.
DOI: 10.1594/pangaea.901385
title: Surface and bottom water reconstructions for ODP Site 177-1094
DOI: 10.1594/pangaea.902476
title: Age analysis from sediment core KNR158-4-MC10
DOI: 10.1594/pangaea.268243
title: Varimax factor matrix of total dead benthic foraminiferal data set (Table 9)
DOI: 10.1594/pangaea.902471
title: Spheroidal carbonaceous particle from sediment core KNR158-4-MC10
DOI: 10.25574/21028
title: Chandra X-ray Observatory ObsId 21028

description: LOW SURFACE BRIGHTNESS GALAXIES AND THE BLACK HOLE OCCUPATION FRACTION
DOI: 10.1594/pangaea.267723
title: Methodological parameters from the analysis of the benthic foraminiferal assemblage (Table 4)
DOI: 10.1594/pangaea.268242
title: Varimax factor matrix of total living benthic foraminiferal data set (Table 7)
DOI: 10.1594/pangaea.267724
title: Statistical parameters of principal component analysis of total living fauna of benthic foraminifera (Table 5)
DOI: 10.1594/pangaea.267725
title: Statistical parameters of principal component analysis of total dead fauna of benthic foraminifera (Table 6)
DOI: 10.1594/pangaea.269030
title: Varimax factor score matrix of total living fauna of benthic foraminifera (Table 8)
DOI: 10.1594/pangaea.860477
title: The effects of trans-generational exposure to ocean warming and acidification on life history and physiological traits in a marine polychaete

description: Human-assisted, trans-generational exposure to ocean warming and acidification has been proposed as a conservation and/or restoration tool to produce resilient offspring. To improve our understanding of the need for and the efficacy of this approach, we characterised life history and physiological responses in offspring of the marine polychaete Ophryotrocha labronica exposed to predicted ocean warming (OW: + 3 °C), ocean acidification (OA: pH -0.5) and their combination (OWA: + 3 °C, pH -0.5), following the exposure of their parents to either control conditions (within-generational exposure) or the same conditions (trans-generational exposure). Trans-generational exposure to OW fully alleviated the negative effects of within-generational exposure to OW on fecundity and egg volume and was accompanied by increased metabolic activity. While within-generational exposure to OA reduced juvenile growth rates and egg volume, trans-generational exposure alleviated the former but could not restore the latter. Surprisingly, exposure to OWA had no negative impacts within- or trans-generationally. Our results highlight the potential for trans-generational laboratory experiments in producing offspring that are resilient to OW and OA. However, trans-generational exposure does not always appear to improve traits, and therefore may not be a universally useful tool for all species in the face of global change.
description: Supplement to: Chakravarti, Leela Jackie; Jarrold, Michael; Gibbin, Emma M; Christen, Felix; Massamba-N'siala, Gloria; Blier, Pierre U; Calosi, Piero (2016): Can trans‐generational experiments be used to enhance species resilience to ocean warming and acidification? Evolutionary Applications, 9(9), 1133-1146
DOI: 10.25574/21029
title: Chandra X-ray Observatory ObsId 21029

description: LOW SURFACE BRIGHTNESS GALAXIES AND THE BLACK HOLE OCCUPATION FRACTION
DOI: 10.15468/dl.26bdqx
title: Occurrence Download

description: A dataset containing 1521 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is Monitoreo de flora y fauna en Sabanas inundables (Orocue, Casanare) APE Llanos119"
 ]
}

 The dataset includes 1521 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0055551-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25574/21030
title: Chandra X-ray Observatory ObsId 21030

description: LOW SURFACE BRIGHTNESS GALAXIES AND THE BLACK HOLE OCCUPATION FRACTION
DOI: 10.25574/21031
title: Chandra X-ray Observatory ObsId 21031

description: LOW SURFACE BRIGHTNESS GALAXIES AND THE BLACK HOLE OCCUPATION FRACTION
DOI: 10.1594/pangaea.955879
title: Sedimentation and accumulation rate of sediment core SO264_55-1
DOI: 10.1594/pangaea.955881
title: Sedimentation and accumulation rate of sediment core SO202/1_37-2
DOI: 10.1594/pangaea.955882
title: CaCO3 content and carbonate accumulation rates of sediment core SO202/1_37-2

description: The CaCO3 content was calculated from TC and TOC which were measured by a CNS-analyzer (Elementar vario EL III) and a carbon/sulfur analyzer (Eltra CS-800).
DOI: 10.25574/21032
title: Chandra X-ray Observatory ObsId 21032

description: LOW SURFACE BRIGHTNESS GALAXIES AND THE BLACK HOLE OCCUPATION FRACTION
DOI: 10.1594/pangaea.955883
title: CaCO3 content and carbonate accumulation rates of sediment core SO264_15-2

description: The CaCO3 content was calculated from TC and TOC which were measured by a CNS-analyzer (Elementar vario EL III) and a carbon/sulfur analyzer (Eltra CS-800).
DOI: 10.1594/pangaea.955884
title: CaCO3 content and carbonate accumulation rates of sediment core SO264_55-1

description: The CaCO3 content was calculated from TC and TOC which were measured by a CNS-analyzer (Elementar vario EL III) and a carbon/sulfur analyzer (Eltra CS-800).
DOI: 10.25574/21033
title: Chandra X-ray Observatory ObsId 21033

description: LOW SURFACE BRIGHTNESS GALAXIES AND THE BLACK HOLE OCCUPATION FRACTION
DOI: 10.1594/pangaea.955885
title: CaCO3 content and carbonate accumulation rates of sediment core SO264_66-2

description: The CaCO3 content was calculated from TC and TOC which were measured by a CNS-analyzer (Elementar vario EL III) and a carbon/sulfur analyzer (Eltra CS-800).
DOI: 10.1594/pangaea.955886
title: Sand content of sediment core SO202/1_37-2

description: Sediment samples were freeze-dried and washed through a 63-µm sieve.
DOI: 10.1594/pangaea.955887
title: Sand content of sediment core SO264_55-1

description: Sediment samples were freeze-dried and washed through a 63-µm sieve.
DOI: 10.25574/21034
title: Chandra X-ray Observatory ObsId 21034

description: A Statistically Robust Constraint on the Evolution of Field LMXBs
DOI: 10.1594/pangaea.955888
title: Alkenone content of sediment core SO202/1_37-2

description: Alkenones were analyzed by GC (HP-6891) fitted with a flame ionization detector (GC-FID) using Helium as carrier gas (1.5 ml min 1 constant flow).
DOI: 10.1594/pangaea.955891
title: Alkenone content of sediment core SO264_15-2

description: Alkenones were analyzed by GC (HP-6891) fitted with a flame ionization detector (GC-FID) using Helium as carrier gas (1.5 ml min 1 constant flow).
DOI: 10.25574/21035
title: Chandra X-ray Observatory ObsId 21035

description: A Statistically Robust Constraint on the Evolution of Field LMXBs