cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.872506
title: Spectral reflectance library of healthy corals, bleached corals and other benthic features in Fiji

description: Radiance-reflectance measurements of the coral types and forms, seagrasses, algae and other benthic features were collected in Fiji in 2006. Spectral reflectances of 239 samples were recorded in situ. An Ocean Optics USB2000 spectrometer was deployed in a custom made underwater housing with a 0.5 m fibre-optic probe mounted next to an artificial light source. Spectral readings were collected with the probe(bear fibre) about 5 cm from the target to ensure that the target would fill the field of view of the fibre optic (FOV diameter ~4.4 cm), as well as to reduce the attenuating effect of the intermediate water (Roelfsema et al., 2006). Spectral readings included for one target included: 1 reading of the covered spectral fibre to correct for instrument noise, 1 reading of a spectralon panel mounted on the diver's wrist to measure incident ambient light, and six to eight readings of the target. Spectral reflectance was calculated for each target by first subtracting the instrument noise reading from each other reading. The corrected target readings were then divided by the corrected spectralon reading resulting in spectral reflectance of each target reading. An average target spectral reflectance was calculated by averaging six to eight individual spectral reflectances of the target. If an individual target spectral reflectance was visually considered an outlier, it was not included in the average spectral reflectance calculation. See Roelfsema at al. (2006) for additional info on the methodology of underwater spectra collection.
DOI: 10.1594/pangaea.783512
title: (Table T4) Tephra layer description of ODP Hole 186-1151D
DOI: 10.1594/pangaea.831167
title: Ring-width-index of five west african tree species, Aguima Catchment, Benin

description: Core samples were taken from a total of 191 trees with an increment borer (Suunto, Finland) with an inner diameter of 5 mm at the measured diameter at breast height (DBH = 130 cm height) from two perpendicular directions. In addition from each species at least one stem disc was taken. The samples were dried and transported to the dendrochronological laboratory of the University of Göttingen, Germany. Core samples were polished together with the stem discs consecutively with sandpaper up to a grain of 600 µm. Ring widths were measured with a digital measuring device (LINTAB, Rinntech, Heidelberg, Germany) to the nearest 0.01 mm. Individual tree-ring series were cross-dated visually and statistically and combined to a mean curve (chronology). Measures for the statistical cross-dating were the Student's T-value (Baillie and Pilcher, 1973) and the percentage of parallel run (p.p.r.) indicating the year-to-year agreement in the oscillation of two curves within the overlapping interval (Schweingruber, 1988, Fichtler et al., 2004). Tree-ring statistics were performed with the computer program TSAP (Time Series Analysis and Presentation, Rinntech, Heidelberg, Germany). This program also transforms raw ring curves into index curves by removing long-term growth trends using a 5-year moving average. The residuals of this procedure are normally distributed, which is a basic condition for the correlation with climate data (Cook and Briffa, 1990).Datasets created by IMPETUS subproject A3. IMPETUS data set ID: 435
DOI: 10.1594/pangaea.860625
title: Gridded bathymetry from swath sonar multibeam SeaBeam-1050 data of the Activ_2014 cruise, Timmiarmiut area
DOI: 10.1594/pangaea.872507
title: Spectral reflectance library of healthy and bleached corals in the Keppel Islands, Great Barrier Reef

description: Radiance-reflectance measurements of the main coral types and forms (healthy, dead and bleached) were collected in the Keppel Islands, the Great Barrier Reef Qld, Australia in 2006. Spectral reflectances of 36 samples were recorded in situ. An Ocean Optics USB2000 spectrometer was deployed in a custom made underwater housing with a 0.5 m fibre-optic probe mounted next to an artificial light source. Spectral readings were collected with the probe(bear fibre) about 5 cm from the target to ensure that the target would fill the field of view of the fibre optic (FOV diameter ~4.4 cm), as well as to reduce the attenuating effect of the intermediate water (Roelfsema et al., 2006). Spectral readings included for one target included: 1 reading of the covered spectral fibre to correct for instrument noise, 1 reading of a spectralon panel mounted on the diver's wrist to measure incident ambient light, and six to eight readings of the target. Spectral reflectance was calculated for each target by first subtracting the instrument noise reading from each other reading. The corrected target readings were then divided by the corrected spectralon reading resulting in spectral reflectance of each target reading. An average target spectral reflectance was calculated by averaging six to eight individual spectral reflectances of the target. If an individual target spectral reflectance was visually considered an outlier, it was not included in the average spectral reflectance calculation. See Roelfsema at al. (2006) for additional info on the methodology of underwater spectra collection.
DOI: 10.1594/pangaea.819656
title: Survey of Western Palestine 1880, Palestine Exploration Fund 1:63,360 mosaicked map

description: The Palestine Exploration Fund (PEF) Survey of Western Palestine (1871-1877) is highly praised for its accuracy and completeness; the first systematic analysis of its planimetric accuracy was published by Levin (2006). To study the potential of these 1:63,360 maps for a quantitative analysis of land cover changes over a period of time, Levin has compared them to 20th century topographic maps. The map registration error of the PEF maps was 74.4 m using 123 control points of trigonometrical stations and a 1st order polynomial. The median RMSE of all control and test points (n = 1104) was 153.6 m. Following the georeferencing of each of the 26 sheets of the PEF maps of the Survey of Western Palestine, a mosaicked file has been created. Care should be taken when analysing historical maps, as it cannot be assumed that their accuracy is consistent at different parts or for different features depicted on them.
description: Supplement to: Levin, Noam (2006): The Palestine Exploration Fund map (1871-1877) of the Holy Land as a tool for analyzing landscape changes: the coastal dunes of Israel as a case study. The Cartographic Journal, 43(1), 45-67
DOI: 10.1594/pangaea.759539
title: (Table 1) Geochemistry of ODP Leg 121 basalts
DOI: 10.1594/pangaea.871596
title: Annotated record of the detailed examination of Mn deposits recovered from dredges and cores from VM19 Expedition stations

description: The cores and dredges described in this report were taken during the Vema 19 Expedition from February until December 1963 by the Lamont Geological Observatory, Columbia University from the R/V Vema. An approximate total of 400 cores, dredges and camera stations were recovered and are available at Lamont-Doherty Earth Observatory for sampling and study.From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database.
DOI: 10.1594/pangaea.871829
title: Annotated record of the detailed examination of Mn deposits from R/V Eltanin Cruise 6 stations

description: Cores, submarine photography and dredges described in this report were taken during the R/V Eltanin Cruise 6 in 1963 by the Department of Geology, Florida State University. Cores and dredges were recovered for 32 stations along with bottom photography and are available at the Antarctic Research Facility, Florida State University for sampling and study.
description: From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database.
DOI: 10.1594/pangaea.865445
title: Sea ice thickness distribution (ITD) Model for the Arctic, links to NetCDF files

description: The impact of a subgrid-scale ice thickness distribution (ITD) and two standard ice strength formulations on simulated Arctic sea ice climate is investigated. To this end different model configurations with and without an ITD were tuned by minimizing the weighted mean error between the simulated and observed sea ice concentration, thickness and drift speed with an semi-automatic parameter optimization routine. The standard ITD and ice strength parameterization lead to larger errors when compared to the simple single-category model with an ice strength parameterization based on the mean ice thickness. Interestingly, the simpler ice strength formulation, which depends linearly on the mean ice thickness, also reduces the model-observation error when using an ITD. For the ice strength parameterization that makes use of the ITD, the effective ice strength depends strongly on the number of thickness categories, so that introducing more categories can lead to overall thicker ice that is more easily deformed.
description: Monthly mean values for sea ice thickness, concentration, drift and ice strength from model simulations. The model area covers the Arctic Ocean; thickness, concentration and drift are given from 1979 to 2009, ice strength is given from 1999 to 2011. The different model configurations are as described in the article.
description: Supplement to: Ungermann, Mischa; Tremblay, L Bruno; Martin, Torge; Losch, Martin (2017): Impact of the Ice Strength Formulation on the Performance of a Sea Ice Thickness Distribution Model in the Arctic. Journal of Geophysical Research: Oceans, 122(3), 2090-2107
DOI: 10.1594/pangaea.869912
title: Global Soil Data Task (IGBP-DIS, ISO-image of CD)

description: The Global Soil Data Task was an international collaborative project with the objective of making accurate and appropriate data relating to soil properties accessible to the global change research community. The collaborators are holders of major international pedosphere data sets, such as the United States Dept of Agriculture, the Food and Agriculture Organisation and the International Soil Reference and Information Centre, as well as national soils institutes, individual soil scientists, and users of soil data. The task was coordinated by the Data and Information System framework activity of the International Geosphere-Biosphere Programme (IGBP-DIS).The task assembled a reliable and accessible data set on pedosphere properties on a global scale. The data are sufficiently detailed to support rigorous analysis, and accessible to and understandable by soil scientists and non-soil scientists alike. The immediate goal was to supply pedosphere information to global change researchers, but the unification and distribution of the existing soils data bases will be of great benefit to all researchers, not only those directly involved in global change studies. The task was enabled by the active participation of the principal international custodians of pedosphere data.
description: This CD contains three groups of products:1. The Global Pedon Database consists of data records from actual soil profiles selected from around the world. You can browse the data, search it, and export it in ASCII format. It was developed by ISRIC, using data from ISIS, FAO and the USDA.2. The FAO Interpreted Surfaces are global surfaces, at 5'x5' resolution, of organic carbon, soil water capacity and easily available water capacity. These have been interpreted and spatially mapped using a combination of base data and field experience by soil experts. You can view and export from them in IDRISI format. The surfaces were developed by FAO.3. The SoilData System uses a statistical bootstrapping approach to link the pedon records in the Global Pedon Database to the FAO Soil Map of the World. It can generate maps and output datasets for a range of original and derived soil parameters, for any part of the world, at any resolution (in increments of 5'), for user-selected depth ranges.
DOI: 10.1594/pangaea.783502
title: (Table T3) Proportions of volcanic material in tephra layers and pods from ODP Site 186-1150
DOI: 10.1594/pangaea.871480
title: Early Meteorological Records from Latin-America and Caribbean during the 18th and 19th centuries (link to zip file)

description: This dataset provides early instrumental data recovered in Latin-America and the Caribbean. Data have been retrieved from 20 countries (Argentina, Bahamas, Belize, Brazil, British Guiana, Chile, Colombia, Costa Rica, Cuba, Ecuador, France (Martinique and Guadalupe), Guatemala, Jamaica, Mexico, Nicaragua, Panama, Peru, Puerto Rico, El Salvador and Suriname) and they cover the 18th and 19th centuries. The main meteorological variables retrieved are air temperature, atmospheric pressure and precipitation but other variables, such as humidity, wind direction, or state of the sky have been retrieved when possible. In total, more than 300.000 early instrumental observations have been rescued.Each archive shows a headline with the following information:ID: 6 letters, the first three make reference to the country and the last three letters to the city/location of the observations.Country: Current name of the country where the observation were recorded.City: Current name of the city or location where the observation were recorded.Period: Time period covered by the series at monthly scale when possible.Resolution: Time resolution of the series.Observers: Name of the people that recorded the measurements.Location Observatory: Latitude and longitude of the observatory in WGS84, altitude when available. The name of the observatory or the street where it was is provided, when the location is exactly known. When the precise location is unknown a probable latitude and longitude is provided.Meteorological variables: Describe all the meteorological variables recorded, its units and the corresponding columns in the file.Data source: The complete reference of the documentary source in which the meteorological record was provided.Descriptive Name: A name of the archive that makes reference to the location and the period covered by the series.Other comments: All the metadata rescued about the observations or the observer. Also provides extreme or rare events recorded by the observer and any other information that could be useful to interpret the series.After the headline, the first columns give the temporal information of the record (year, season, month, day and hour) and the following columns show the measurements of each meteorological variable. Every column has a short descriptive title.
DOI: 10.1594/pangaea.899727
title: Influence of salt on the molecular composition of dissolved organic matter from peat soils

description: Dissolved organic matter (DOM) from peat samples of different origin, degradation and peat forming environment (file 'samples.txt') were extracted with fresh- and salt water. Besides the basic parameters pH and C- and N- content (file 'C_N_pH.txt), pyrolysis field ionization mass spectrometry (Py-FIMS) was used to examine differences between fresh- and saltwater extracts. Mass- and temperature information was used to assign the Py-FIMS signals to compound classes. Intensity and relative abundance of the compound classes are displayed in the files 'compound classes_counts_per_mg.txt' and 'compound classes_percentTII.txt', respectively. The files 'xxx_thermograms.txt' contain the thermograms of the single compound classes.
description: Supplement to: Strehse, Robert; Bohne, Heike; Amha, Yosef; Leinweber, Peter (2015): The influence of salt on dissolved organic matter from peat soils. Organic Geochemistry, 125, 270-276
DOI: 10.1594/pangaea.783504
title: (Table AT2) Major element oxide composition of tephra shards from ODP Site 186-1151
DOI: 10.1594/pangaea.495201
title: Water temperature XBT profiles from cruise U06XX55633_1977
DOI: 10.1594/pangaea.830920
title: Satellite-based lake surface water temperatures from Lake_Ammer, 1989-2013

description: Lake Surface Water Temperature (LSWT) has been extracted from a 3x3 pixel array at the center of the lake. See "Event(s)" for Lake/pixel co-ordinates.
DOI: 10.1594/pangaea.911296
title: Approach III - day to day difference and constant threshold
DOI: 10.1594/pangaea.867918
title: SHYFEM model velocity fields for the Venice Lagoon, link to NetCDF files

description: The database include the ebb, flood and residual velocity fields obtained by the application of the SHYFEM model to the Venice Lagoon. The water circulation in the Venice Lagoon, induced by tide, wind, and water, heat and salt fluxes, was simulated by the unstructured model SHYFEM applied over a spatial domain that represents the entire Lagoon and its adjacent shore with 144361 triangular elements of variable form and size . The water column is discretized into 22 vertical levels with progressively increasing thickness varying from 1 m for the topmost 16 m to 7 m for the deepest layer of the outer shelf. The model was applied for the year 2014 in a 3-D baroclinic mode using observed forcing and boundary conditions (i.e. wind stress, heat and salt fluxes, precipitation, sea level and freshwater discharge). The residual currents are obtained averaging the modelled currents over the one-year simulation.By comparing model results with sea level data recorders at 26 gauge stations distributed in the lagoon, we estimated an overall root mean square error of 2.1 cm for the simulated water level.The components of the 3D velocities are provided for each node of the numerical domain.
description: Supplement to: Madricardo, Fantini; Foglini, Federica; Kruss, Aleksandra; Ferrarin, Christian; Pizzeghello, Nicola Marco; Murri, Chiara; Rossi, Monica; Bajo, Marco; Bellafiore, Debora; Campiani, Elisabetta; Fogarin, Stefano; Grande, Valentina; Janowski, Lukasz; Keppel, Erica; Leidi, Elisa; Lorenzetti, Giuliano; Maicu, Francesco; Maselli, Vittorio; Mercorella, Alessandra; Montereale Gavazzi, Giacomo; Minuzzo, Tiziano; Pellegrini, Claudio; Petrizzo, Antonio; Prampolini, Mariacristina; Remia, Alessandro; Rizzetto, Federica; Rovere, Marzia; Sarretta, Alessandro; Sigovini, Marco; Sinapi, Luigi; Umgiesser, Georg; Trincardi, Fabio (2017): High resolution multibeam and hydrodynamic datasets of tidal channels and inlets of the Venice Lagoon. Scientific Data, 4, 170121
DOI: 10.1594/pangaea.496113
title: Water temperature MBT profiles from cruise U90X089138M_1989
DOI: 10.1594/pangaea.882053
title: (Appendix 3) Additional major and trace elements (UNAM) from the Jorullo volcano in the Michoacan Guanajuato Volcanic Field, Mexiko
DOI: 10.1594/pangaea.859300
title: Model simulation output data (CCSM3) related to uplift of Africa and Himalaya/Tibet Plateau and the influence on tropical African vegetation

description: Hominid evolution in the late Miocene has long been hypothesized to be linked to the retreat of the tropical rainforest in Africa. One cause for the climatic and vegetation change often considered was uplift of Africa, but also uplift of the Himalaya and the Tibetan Plateau was suggested to have impacted rainfall distribution over Africa. Recent proxy data suggest that in East Africa open grassland habitats were available to the common ancestors of hominins and apes long before their divergence and do not find evidence for a closed rainforest in the late Miocene. We used the coupled global general circulation model CCSM3 including an interactively coupled dynamic vegetation module to investigate the impact of topography on African hydro-climate and vegetation. We performed sensitivity experiments altering elevations of the Himalaya and the Tibetan Plateau as well as of East and Southern Africa. The simulations confirm the dominant impact of African topography for climate and vegetation development of the African tropics. Only a weak influence of prescribed Asian uplift on African climate could be detected. The model simulations show that rainforest coverage of Central Africa is strongly determined by the presence of elevated African topography. In East Africa, despite wetter conditions with lowered African topography, the conditions were not favorable enough to maintain a closed rainforest. A discussion of the results with respect to other model studies indicates a minor importance of vegetation–atmosphere or ocean–atmosphere feedbacks and a large dependence of the simulated vegetation response on the land surface/vegetation model.
description: The data was created by the CCSM3 model. The experiments that are considered are experiments run with1) present.-day topography (HIGH)2) low African topography (AF)3) low Himalaya/Tibet Plateau (HT)The model results included are 100 year seasonal means (atmospheric data) and annual means (vegetation). The atmospheric data was interpolated from model levels to 10 pressure levels. Included are model data from the land surface model (CLM) and the atmosphere model CAM3.0 including the following variables:-vegetation coverage-horizontal and vertical wind velocities-precipitation-humidity
description: Supplement to: Jung, Gerlinde; Prange, Matthias; Schulz, Michael (2016): Influence of topography on tropical African vegetation coverage. Climate Dynamics, 46(7), 2535-2549
DOI: 10.1594/pangaea.859783
title: Continuous thermosalinograph oceanography along HEINCKE cruise track HE421
DOI: 10.1594/pangaea.860318
title: Swath sonar multibeam EM120 bathymetry during METEOR cruise M72/4 with links to raw data files of bathymetry

description: Multibeam echosounder (MBES) data recorded during RV METEOR cruise M72-4 between 25.04.2007 and 11.05.2007 in the Black Sea. This main objective of this cruise was to gain better knowledge of the pathways of methane from their point of formation via potential intermediate deposits to the seafloor in order to understand the mechanisms leading to the submarine discharge of methane-rich fluids. Two regional Black Sea targets have been chosen: The Sorokin Trough, with focused seepage through mud volcanoes, and the Dniepr area where active gas venting occurs from very shallow water depths down to at least 1000 m. CI Citation: Paul Wintersteller (seafloor-imaging@marum.de) as responsible party for bathymetry and backscatter post-processing and its products. Description of the data source: During the RV METEOR cruise M72-4 the Kongsberg EM120 multibeam echosounder with a nominal sounding frequency of 12 kHz was utilized. 191 beams are formed for each ping with a 1°(Tx)/2°(Rx) footprint while the seafloor is detected using amplitude and phase information for each beam sounding. For further information consult https://epic.awi.de/26725/1/Kon2007a.pdf. As the EM120 system was unstable due to some internal system failure it could not be used during some of the M72-4 cruise time. The vessel's speed was 8 kn during surveys. Responsible person during this cruise / PI: Sarah Althoff (Former employee at the Research Center Ocean Margins), Jörg Bialas (GEOMAR). Chief Scientist: Jörg Bialas A special thanks goes to the watchkeeper during M72/4.