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  • 2020-2024  (72,483)
  • 2005-2009  (21)
  • 2021  (72,483)
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  • 1
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    Mg/Ca, Sr/Ca and stable isotopes from the planktonic foraminifera T. sacculifer: testing a multi-proxy approach for inferring paleotemperature and paleosalinity (2021)
    COPERNICUS GESELLSCHAFT MBH
    In:  EPIC3Biogeosciences, COPERNICUS GESELLSCHAFT MBH, 18, pp. 423-439, ISSN: 1726-4170
    Details
    Publication Date: 2024-06-14
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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    PAPER (OA)
  • 2
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    Four flowering plant species described from Katanga (Democratic Republic of the Congo) are based on specimens collected in Guangxi, China (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 1, pp. 82-92
    Details
    Publication Date: 2024-06-14
    Description: The original set of botanical collections of the agronomist H.A. Homblé is conserved in the herbarium BR. Homblé was one of the first collectors (1911–1913) for the flora of Katanga, Democratic Republic of the Congo. Many Homblé specimens were described as taxonomic novelties; 107 tropical African plant species are named after him. Before his colonial career in Katanga, Homblé stayed about two years (1909–1911) in Guangxi, China. His incompletely labelled Chinese collections were erroneously considered as collected in Katanga. This supposed African origin has led to confusion with regard to the identification, and even resulted in the description of four species believed to be new for science. This paper presents and discusses Homblé’s collection made in Guangxi, and the assumed novelties in it. Drosera insolita is a synonym of the Asian Drosera lunata, widespread from India to Australia. Three other species are new synonyms. Caesalpinia homblei is a synonym of the pantropical Caesalpinia bonduc. Digitaria polybotryoides is a synonym of Digitaria abludens, a widespread species in tropical Asia. Grewia katangensis is the only species that proved to be synonymous with an endemic species, Grewia cuspidatoserrata, only known from S Yunnan, and here reported as a new record for Guangxi. Lysimachia candida and Impatiens chinensis should be deleted from the list of the Congo Flora. The importance of careful specimen labelling and label interpretation is discussed.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 3
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    Physical oceanography, picoplankton biomass, chlorophyll a and nutrients during RV Atlantic Explorer cruise ESTELA (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-14
    Description: Data were collected from 9 to 12 of May of 2011 on board RV Atlantic Explorer from a section across a wind-shear convergent front south of Gran Canaria Island (Canary Island). In order to assess both spatial and temporal variability at submesoscale range, a section consisting in 6-7 oceanographic stations, separated ~4 km (25 km in total), was entirely sampled every 24 h, during a 96 h period (there are no data for 72h). At each station CTD data and discrete water samples were collected for chlorophyll a, nutrients and picophytoplankton abundances at six levels, from surface to 150 m, including the deep chlorophyll maximum (DCM) by means of CTD mounted onto an oceanographic rosette implemented with six Niskin bottles of 12 L.
    Keywords: Biogeochemical impact of mesoscale and sub-mesoscale processes along the life history of cyclonic and anticyclonic eddies: plankton variability and productivity; Canary Current; Canary Islands; CTD; e-IMPACT; Front; picoplankton biomass; spatiotemporal variability; submesoscale; TRIATLAS; Tropical and South Atlantic climate-based marine ecosystem predictions for sustainable management
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 4
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    Transports and pathways of the tropical AMOC return flow from Argo data and shipboard velocity measurements (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-14
    Description: The upper-ocean circulation of the tropical Atlantic is a complex superposition of thermohaline and wind-driven flow components. The resulting zonally- and vertically-integrated upper-ocean meridional flow is referred to as the upper branch of the Atlantic Meridional Overturning Circulation (AMOC) - a major component and potential tipping element of the global climate system. We investigate the tropical part of the northward AMOC branch, i.e. the return flow covering the upper 1,200 m, based on Argo data and repeated shipboard velocity measurements. The western boundary mean circulation at 11°S is realistically reproduced from high-resolution Argo data showing a remarkably good representation of the vertical structure of meridional velocity and the volume transport of water mass layers when compared to results from direct velocity measurements along a repeated ship section. Thus, we extend the analysis to the inner tropical Atlantic. Within the AMOC return flow, a diapycnal upwelling of central water into the thermocline layer of ~2 Sv is derived between 11°S and 10°N which is about half the magnitude of previous estimates, likely due to improved horizontal resolution. The mean strength of the AMOC return flow is ~16 Sv across 11°S and 10°N. At 11°S, northward transport is concentrated at the western boundary where the AMOC return flow enters the tropics at all vertical layers above 1,200 m. At 10°N, northward transport is observed both at the western boundary and in the interior predominantly in the surface and intermediate layer indicating recirculation and transformation of thermocline and central water within the tropics.
    Keywords: BANINO; Benguela Niños: Physikalische Prozesse und langperiodische Variabilität; currents; physical oceanography; TRIATLAS; Tropical and South Atlantic climate-based marine ecosystem predictions for sustainable management; tropical Atlantic
    Type: Dataset
    Format: 46 datasets
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  • 5
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    Natural abundance of stable isotopes in micronekton fish species from the BATHYPELAGIC cruise (North Atlantic, June 2018): carbon and nitrogen values in bulk tissues and nitrogen values in amino acids (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-14
    Description: The values of natural abundance of stable isotopes were measured in 13 micronekton fish species sampled during the BATHYPELAGIC cruise (North Atlantic, June 2018). This dataset contains the values obtained for carbon and nitrogen in bulk tissues, and nitrogen values in amino acids. Length and biomass data for each individual analyzed are also provided. Fishes were collected using a ''Mesopelagos” net (5x7 m mouth opening, 58 m total lenght) equipped with graded-mesh netting (starting with 30 mm and ending with 4 mm) and a multi-sampler for collecting samples from 5 different depth layers (Olivar et al., 2017). Individual fish were eviscerated, freeze-dried and weighted. Aliquots of muscular tissue (or whole individuals for species of small size) were analyzed in an elemental analyzer (bulk tissues, Olivar et al., 2019) or a gas chromatograph (derivatized amino acids, Mompeán et al., 2016) coupled to isotope-ratio mass spectrometers. Carbon analyses were made before and after removal of lipids with a mixture of trichloromethane:methanol:water.
    Keywords: 29SG20180524; Alanine; Alanine, δ15N; amino acids; Aspartamine and Aspartic acid; Aspartamine and Aspartic acid, δ15N; bathypelagic; BATHYPELAGIC; BATHYPELAGIC_01_N; BATHYPELAGIC_02_D; BATHYPELAGIC_02_N; BATHYPELAGIC_03_D; BATHYPELAGIC_03_N; BATHYPELAGIC_04_D1; BATHYPELAGIC_04_D2; BATHYPELAGIC_04_D3; BATHYPELAGIC_05_D1; BATHYPELAGIC_05_D2; BATHYPELAGIC_05_D3; BATHYPELAGIC_05_N; BATHYPELAGIC_06_N1; BATHYPELAGIC_06_N2; BATHYPELAGIC_07_N; BATHYPELAGIC_10_D1; BATHYPELAGIC_10_D2; Biomass and Active Flux in the Bathypelagic Zone; Carbon; Carbon, total; Date/Time of event; DEPTH, water; Dry mass; Elemental analyser - isotope ratio mass spectrometry; epipelagic; Event label; Family; fish; Gas chromatography - Isotope ratio mass spectrometer (GC-IRMS); Glutamine and Glutamic acid; Glutamine and Glutamic acid, δ15N; Glycine; Glycine, δ15N; GRC-EPB; Isoleucine; Isoleucine, δ15N; Latitude of event; Length, standard; Leucine; Leucine, δ15N; Longitude of event; Lysine; Lysine, δ15N; Measured using callipers; mesopelagic; Mesopelagos; Methionine; Methionine, δ15N; micronekton; Midwater trawl, Mesopelagos (Meillat, 2012); nitrogen; Nitrogen, total; North Atlantic; Observation; ocean; Order; Phenylalanine; Phenylalanine, δ15N; Proline; Proline, δ15N; Sample ID; Sarmiento de Gamboa; Serine; Serine, δ15N; Species; Stable isotopes; Station label; SUMMER; Sustainable Management of Mesopelagic Resources; Threonine; Threonine, δ15N; Time of day; TRIATLAS; Tropical and South Atlantic climate-based marine ecosystem predictions for sustainable management; Valine; Valine, δ15N; Weighted; δ13C; δ15N
    Type: Dataset
    Format: text/tab-separated-values, 1501 data points
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  • 6
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    ROMS-PISCES organic carbon in the Canary Current System (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-14
    Description: This dataset include outputs from a coupled physical-biogeochemical model (ROMS-PISCES) forced by climatological fields that has been used to examine the role of upwelling filaments in the offshore exchange of particulate (POC) and dissolved (DOC) organic carbon in the Canary Current eastern boundary upwelling system (CanC EBUS). The data consists on monthly climatological means of total organic carbon (direct sum of dissolved and particulate pools) generated by 7 years of simulation.
    Keywords: CAIBEX; canary upwelling; Constraining organic carbon fluxes in an eastern boundary upwelling ecosystem (NW Africa): the role of non-sinking carbon in the context of the biological pump; FLUXES; organic carbon; PISCES; ROMS; Shelf-ocean exchanges in the Canaries-Iberian large marine ecosystem; SUMMER; Sustainable Management of Mesopelagic Resources; TRIATLAS; Tropical and South Atlantic climate-based marine ecosystem predictions for sustainable management
    Type: Dataset
    Format: application/x-hdf, 174.8 MBytes
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  • 7
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    Stable isotope data for Stomiiform fishes from the MAFIA cruise (April 2015) (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-14
    Description: The values of natural abundance of stable isotopes were measured in 13 micronekton fish species sampled during the MAFIA cruise (North Atlantic, April 2015). This dataset contains the values obtained for carbon and nitrogen in bulk tissues, and nitrogen values in amino acids. Length data and the number of individuals analysed for each species are also provided. Mesopelagic fishes were collected using a ''Mesopelagos” net (5x7 m mouth opening, 58 m total lenght) equipped with graded-mesh netting (starting with 30 mm and ending with 4 mm) and a multi-sampler for collecting samples from 5 different depth layers (Olivar et al., 2017). For C:N and stable isotope analyses, individual fish were eviscerated, freeze-dried and weighted. Aliquots of muscular tissue (or whole individuals for species of small size) were analyzed in an elemental analyzer (bulk tissues, Olivar et al., 2019) or a gas chromatograph (derivatized amino acids, Mompeán et al., 2016) coupled to isotope-ratio mass spectrometers.
    Keywords: Alanine; Alanine, δ15N; amino acids; Aspartamine and Aspartic acid; Aspartamine and Aspartic acid, δ15N; BATHYPELAGIC; Biomass and Active Flux in the Bathypelagic Zone; Carbon/Nitrogen ratio; carbon isotope ratio (δ13C); Central Atlantic; DATE/TIME; DEPTH, water; Elemental analyser - isotope ratio mass spectrometry; Event label; Family; fish; Gas chromatography - Isotope ratio mass spectrometer (GC-IRMS); Glutamine and Glutamic acid; Glutamine and Glutamic acid, δ15N; Glycine; Glycine, δ15N; GRC-EPB; Hespérides; ICM_Excellence_Centre; Isoleucine; Isoleucine, δ15N; Latitude of event; Length, standard; Leucine; Leucine, δ15N; Longitude of event; Lysine; Lysine, δ15N; MAFIA; MAFIA_PEL_10D; MAFIA_PEL_10N; MAFIA_PEL_12N; MAFIA_PEL_7N; MAFIA_PEL_8D; MAFIA_PEL_8N; MAFIA_PEL_9D; MAFIA_PEL_9N; Measured using callipers; Mesopelagos; Methionine; Methionine, δ15N; micronekton; Midwater trawl, Mesopelagos (Meillat, 2012); Migrants and Active Flux In the Atlantic Ocean; nitrogen isotope ratios; North Atlantic; Number of individuals; Phenylalanine; Phenylalanine, δ15N; Proline; Proline, δ15N; Serine; Serine, δ15N; Severo Ochoa Centre of Excellence; Species; Stable isotopes; Station label; SUMMER; Sustainable Management of Mesopelagic Resources; Threonine; Threonine, δ15N; Time of day; TRIATLAS; Tropical and South Atlantic climate-based marine ecosystem predictions for sustainable management; Valine; Valine, δ15N; δ13C; δ15N
    Type: Dataset
    Format: text/tab-separated-values, 444 data points
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  • 8
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    Basic and other measurements of radiation at station Gobabeb (2020-12) (2021)
    PANGAEA
    In:  Meteorology Climatology Remote Sensing, Dep. Umweltwissenschaften, Universität Basel
    Details
    Publication Date: 2024-06-14
    Description: In Gobabeb, Namibia SWD, LWD and DIR are each measured redundant with two instruments of the same make (not in this data base). The differences between the pairs are used in the quality control. This is done manually by inspecting plots of half-day diurnal courses of the pairs and their differences. Values are removed mostly in the morning due to daily cleaning. Other reasons for larger differences are birds, insects, or people at the station. There are regular fog events varying in frequency over the year. Usually, the fog appears in the second half of the night and disappears a few hours after sunrise. The case temperatures of pyrgeometers practically never drop below dewpoint but there can be water deposition of the dome.
    Keywords: Air temperature at 2 m height; BARO; Barometer; Baseline Surface Radiation Network; BSRN; DATE/TIME; Diffuse radiation; Diffuse radiation, standard deviation; Direct radiation; Direct radiation, standard deviation; GOB; Gobabeb; HEIGHT above ground; Humidity, relative; HYGRO; Hygrometer; Long-wave downward radiation; Long-wave downward radiation, standard deviation; Long-wave upward radiation; Monitoring station; MONS; Namib Desert, Namibia; Pyranometer, Kipp & Zonen, CMP22, SN 110315, WRMC No. 20100; Pyranometer, Kipp & Zonen, CMP22, SN 110316, WRMC No. 20101; Pyranometer, Kipp & Zonen, CMP22, SN 120330, WRMC No. 20102; Pyrgeometer, Kipp & Zonen, CGR4, SN 110408, WRMC No. 20200; Pyrgeometer, Kipp & Zonen, CGR4, SN 120457, WRMC No. 20201; Pyrheliometer, Kipp & Zonen, CHP 1, SN 110764, WRMC No. 20000; Short-wave downward (GLOBAL) radiation; Short-wave downward (GLOBAL) radiation, standard deviation; Short-wave upward (REFLEX) radiation; Station pressure; Thermometer
    Type: Dataset
    Format: text/tab-separated-values, 580044 data points
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  • 9
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    Basic and other measurements of radiation at station Izaña (2021-02) (2021)
    PANGAEA
    In:  Izaña Atmospheric Research Center, Meteorological State Agency of Spain
    Details
    Publication Date: 2024-06-14
    Keywords: Air temperature at 2 m height; BARO; Barometer; Baseline Surface Radiation Network; BSRN; DATE/TIME; Diffuse radiation; Diffuse radiation, maximum; Diffuse radiation, minimum; Diffuse radiation, standard deviation; Direct radiation; Direct radiation, maximum; Direct radiation, minimum; Direct radiation, standard deviation; EKO Instruments, MR-60, SN S15115.07, WRMC No. 61013; HEIGHT above ground; Humidity, relative; HYGRO; Hygrometer; IZA; Izaña; Long-wave downward radiation; Long-wave downward radiation, maximum; Long-wave downward radiation, minimum; Long-wave downward radiation, standard deviation; Long-wave upward radiation; Long-wave upward radiation, maximum; Long-wave upward radiation, minimum; Long-wave upward radiation, standard deviation; Monitoring station; MONS; Net radiation; Net radiation, maximum; Net radiation, minimum; Net radiation, standard deviation; Pyranometer, EKO, MS-802F, SN F15508FR, WRMC No. 61010; Pyranometer, EKO, MS-802F, SN F15509FR, WRMC No. 61011; Pyrgeometer, Kipp & Zonen, CGR4, SN 050783, WRMC No. 61008; Pyrheliometer, EKO, MS-56, SN P15048, WRMC No. 61012; Short-wave downward (GLOBAL) radiation; Short-wave downward (GLOBAL) radiation, maximum; Short-wave downward (GLOBAL) radiation, minimum; Short-wave downward (GLOBAL) radiation, standard deviation; Short-wave upward (REFLEX) radiation; Short-wave upward (REFLEX) radiation, maximum; Short-wave upward (REFLEX) radiation, minimum; Short-wave upward (REFLEX) radiation, standard deviation; Station pressure; Tenerife, Spain; Thermometer
    Type: Dataset
    Format: text/tab-separated-values, 1189200 data points
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  • 10
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    Basic and other measurements of radiation at station Izaña (2020-11) (2021)
    PANGAEA
    In:  Izaña Atmospheric Research Center, Meteorological State Agency of Spain
    Details
    Publication Date: 2024-06-14
    Keywords: Air temperature at 2 m height; BARO; Barometer; Baseline Surface Radiation Network; BSRN; DATE/TIME; Diffuse radiation; Diffuse radiation, maximum; Diffuse radiation, minimum; Diffuse radiation, standard deviation; Direct radiation; Direct radiation, maximum; Direct radiation, minimum; Direct radiation, standard deviation; EKO Instruments, MR-60, SN S15115.07, WRMC No. 61013; HEIGHT above ground; Humidity, relative; HYGRO; Hygrometer; IZA; Izaña; Long-wave downward radiation; Long-wave downward radiation, maximum; Long-wave downward radiation, minimum; Long-wave downward radiation, standard deviation; Long-wave upward radiation; Long-wave upward radiation, maximum; Long-wave upward radiation, minimum; Long-wave upward radiation, standard deviation; Monitoring station; MONS; Net radiation; Net radiation, maximum; Net radiation, minimum; Net radiation, standard deviation; Pyranometer, EKO, MS-802F, SN F15508FR, WRMC No. 61010; Pyranometer, EKO, MS-802F, SN F15509FR, WRMC No. 61011; Pyrgeometer, Kipp & Zonen, CGR4, SN 050783, WRMC No. 61008; Pyrheliometer, EKO, MS-56, SN P15048, WRMC No. 61012; Short-wave downward (GLOBAL) radiation; Short-wave downward (GLOBAL) radiation, maximum; Short-wave downward (GLOBAL) radiation, minimum; Short-wave downward (GLOBAL) radiation, standard deviation; Short-wave upward (REFLEX) radiation; Short-wave upward (REFLEX) radiation, maximum; Short-wave upward (REFLEX) radiation, minimum; Short-wave upward (REFLEX) radiation, standard deviation; Station pressure; Tenerife, Spain; Thermometer
    Type: Dataset
    Format: text/tab-separated-values, 1224033 data points
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