Search results for "Earth System Research"

showing 10 items of 73 documents

Discharge data series of Begura de Salma River (Mallorca, Spain): January 2015-October 2018

2020

Here we provide the data set obtained as described in detail in Estrany et al. (2020, doi:10.5194/nhess-2019-304); a brief description is presented below. A hydrometric gauging station is located where the Begura de Salma River enters Sant Llorenç des Cardassar, a village located in the northeastern part of Mallorca island (Spain). The station was built by the water authority in the 1970s. After years of abandonment, in 2015 the MEDhyCON Research Group installed within the gauge house a Hobo Water Level U20L-04, which measures the water stage by 1-minute readings, accumulating 15-minute average values. The station is located at the very beginning of the concrete channel that takes the river…

DATE/TIMEcatastrophic flash-floodsDATE TIMEEarth System ResearchDischargeMediterranean fluvial systemscatastrophic flash floodsGauge stationRiver discharge
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KOSMOS 2018 Gran Canaria mesocosm study: water column biogeochemistry

2021

The data set compiles biogeochemical water column collected during a KOSMOS mesocosm experiment carried out in the frame work of the Ocean Artificial Upwelling project. The experiment was performed in the North-East Atlantic Ocean off the coast of Gran Canaria in autumn 2018 and lasted for 39 days. In this study we investigated the effect of different intensities of artificial upwelling combined with two upwelling modes (recurring additions versus one singular addition) on POC export and its potential transfer efficiency to depth. The data set includes the amounts of surface water that were exchanged with nutrient-rich deep water (from ~300 m depth), primary production and chlorophyll a, el…

DEPTH water experimentNitrogenorganicChlorophyll aOcean Artificial Upwelling Ocean artUpwaterartificial upwellingOcean Artificial Upwelling (Ocean-artUp)remineralization rateDATE TIMEparticle propertiesCarbon organic particulateCarbon Nitrogen ratioMesocosm labelparticulatetotalPrimary production cumulativeexperimentDeep water exchange totalPrimary productionMesocosm experimentcumulativeEvent labelsinking velocitycarbon sequestrationCarbonCarbon/Nitrogen ratioexport fluxTreatmentDeep water exchangeDATE/TIMEKOSMOS_2018Prokaryotic heterotrophic productionDEPTHNitrogen organic particulateEarth System ResearchExperiment daymesocosm studyremineralization depth
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KOSMOS 2018 Gran Canaria mesocosm study: particle flux data from sediment trap

2021

The data set compiles sinking flux data collected during a KOSMOS mesocosm experiment carried out in the frame work of the Ocean Artificial Upwelling project. The experiment was performed in the North-East Atlantic Ocean off the coast of Gran Canaria in autumn 2018 and lasted for 39 days. In this study we investigated the effect of different intensities of artificial upwelling combined with two upwelling modes (recurring additions versus one singular addition) on POC export and its potential transfer efficiency to depth. The data set includes the amounts of surface water that were exchanged with nutrient-rich deep water (from ~300 m depth). It also contains particle flux data, i.e. POC flux…

DEPTH water experimentRemineralisation rate of carbon per dayNitrogenorganicOcean Artificial Upwelling Ocean artUpwaterartificial upwellingOcean Artificial Upwelling (Ocean-artUp)Particle porosityremineralization rateRemineralisation length scaleBiogenic silicaDATE TIMEparticle propertiesCarbon Nitrogen ratioCarbon Silicon ratioMesocosm labelparticulatetotalNitrogen organic particulate flux per dayflux per dayexperimentDeep water exchange totalCarbon organic particulate flux cumulativeMesocosm experimentcumulativeEvent labelsinking velocityCarbon/Silicon ratiocarbon sequestrationCarbonCarbon/Nitrogen ratiofluxexport fluxTreatmentNitrogen organic particulate flux cumulativeDeep water exchangeDATE/TIMEKOSMOS_2018DEPTHEarth System ResearchExperiment dayBiogenic silica flux per daymesocosm studyremineralization depthCarbon organic particulate flux per day
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Calcification is not the Achilles'heel of cold-water corals in an acidifying ocean

2015

Ocean acidification is thought to be a major threat to coral reefs: laboratory evidence and CO2 seep research has shown adverse effects on many coral species, although a few are resilient. There are concerns that cold-water corals are even more vulnerable as they live in areas where aragonite saturation (Omega ara) is lower than in the tropics and is falling rapidly due to CO2 emissions. Here, we provide laboratory evidence that net (gross calcification minus dissolution) and gross calcification rates of three common cold-water corals, Caryophyllia smithii, Dendrophyllia cornigera, and Desmophyllum dianthus, are not affected by pCO2 levels expected for 2100 (pCO2 1058 µatm, Omega ara 1.29),…

Dissolution rateOcean Acidification International Coordination Centre (OA-ICC)TemperateIdentificationSalinityBicarbonate ion standard deviationinorganicAlkalinity total standard deviationAlkalinityExperimentTemperature waterCarbon inorganic dissolvedCalculated using seacarb after Nisumaa et al 2010Aragonite saturation stateRespiration rate oxygenAlkalinity totaltotalDesmophyllum dianthuspHRespirationTemperatureCalcification rate of calcium carbonatedissolvedLaboratory experimentCarbonate ionDeep seaPartial pressure of carbon dioxide (water) at sea surface temperature (wet air)Field experimentCarbon dioxide standard deviationTemperature water standard deviationContainers and aquaria 20 1000 L or 1 m 2Respiration rateEarth System ResearchContainers and aquaria (20-1000 L or &lt; 1 m**2)standard deviationCalcification/DissolutionPotentiometric titrationCalcite saturation statePotentiometricwaterPartial pressure of carbon dioxideCaryophyllia smithiiContainers and aquaria (20-1000 L or < 1 m**2)Dendrophyllia cornigeraFigureAragonite saturation state standard deviationBenthosCnidariaOcean Acidification International Coordination Centre OA ICCMediterranean SeaAnimaliaBicarbonate ionCalculated using seacarb after Nisumaa et al. (2010)SpeciesCalculated using CO2SYSfungiEvent labelDeep-seaPartial pressure of carbon dioxide standard deviationCarbonate system computation flagpH standard deviationCarbonate ion standard deviationbiochemical phenomena metabolism and nutritionFugacity of carbon dioxide (water) at sea surface temperature (wet air)CarbonTreatmentPartial pressure of carbon dioxide water at sea surface temperature wet airCarbon dioxideSingle speciesCalcification DissolutionFugacity of carbon dioxide water at sea surface temperature wet airBenthic animalsoxygen
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Global distributions of diazotrophs abundance, biomass and nitrogen fixation rates - Gridded data product (NetCDF) - Contribution to the MAREDAT Worl…

2012

The MAREDAT atlas covers 11 types of plankton, ranging in size from bacteria to jellyfish. Together, these plankton groups determine the health and productivity of the global ocean and play a vital role in the global carbon cycle. Working within a uniform and consistent spatial and depth grid (map) of the global ocean, the researchers compiled thousands and tens of thousands of data points to identify regions of plankton abundance and scarcity as well as areas of data abundance and scarcity. At many of the grid points, the MAREDAT team accomplished the difficult conversion from abundance (numbers of organisms) to biomass (carbon mass of organisms). The MAREDAT atlas provides an unprecedente…

Earth System ResearchMARine Ecosystem Model Intercomparison Project (MAREMIP)MARine Ecosystem Model Intercomparison Project MAREMIP
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Ocean acidification affects fish spawning but not paternity at CO2 seeps

2016

Fish exhibit impaired sensory function and altered behaviour at levels of ocean acidification expected to occur owing to anthropogenic carbon dioxide emissions during this century. We provide the first evidence of the effects of ocean acidification on reproductive behaviour of fish in the wild. Satellite and sneaker male ocellated wrasse (Symphodus ocellatus) compete to fertilize eggs guarded by dominant nesting males. Key mating behaviours such as dominant male courtship and nest defence did not differ between sites with ambient versus elevated CO2 concentrations. Dominant males did, however, experience significantly lower rates of pair spawning at elevated CO2 levels. Despite the higher r…

Eggs standard errorOcean Acidification International Coordination Centre (OA-ICC)TemperateRegistration number of speciesIdentificationSalinityEggsinorganicAlkalinityExperimentNumber standard errorDominant male paternityTemperature waterCarbon inorganic dissolvedNumber of individualsCalculated using seacarb after Nisumaa et al 2010Number of spawning events standard errorAragonite saturation stateFish standard lengthChordataAlkalinity totalSalinity standard errortotalCO2 ventReplicatesCourtship standard errorpHPelagosReproductionSymphodus ocellatusTemperatureNumberPartial pressure of carbon dioxide (water) at sea surface temperature (wet air) standard errordissolvedCarbonate ionPartial pressure of carbon dioxide (water) at sea surface temperature (wet air)standard errorIndividuals standard errorEarth System ResearchField observationFOS: Medical biotechnologyUniform resource locator link to referencePotentiometric titrationCalcite saturation stateLocationPotentiometricwaterNumber of spawning eventsAgeUniform resource locator/link to referenceOcean Acidification International Coordination Centre OA ICCMediterranean SeaAnimaliaEggs areaBehaviourTypeBicarbonate ionNektonEggs area standard errorTemperature water standard errorCalculated using seacarb after Nisumaa et al. (2010)SpeciespH standard errorWet massDominant male paternity standard errorCalculated using CO2SYSEvent labelIndividualsCourtshipCarbonate system computation flagstandard lengthFugacity of carbon dioxide (water) at sea surface temperature (wet air)CarbonTreatmentPartial pressure of carbon dioxide water at sea surface temperature wet airFishCarbon dioxideSingle speciesFugacity of carbon dioxide water at sea surface temperature wet airCoast and continental shelf
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Representative major element compositions of clinopyroxenes and phlogopites from ultrapotassic rocks from Nangqian basin (Eastern Tibet)

2020

Representative major element compositions (in wt%) of clinopyroxenes and phlogopites from Nangqian ultrapotassic rocks. In-situ major-element compositions of mineral phases were obtained using the JEOL JXA-8230 Electron Microprobe at ISTerre, University Grenoble Alpes. Analytical conditions were 15 kV accelerating voltage and 12 nA beam current. The ZAF procedure was applied to reduce the raw data. The microprobe was calibrated using natural and synthetic standards. An X-ray element map of a calcite-bearing aggregate was acquired using 15 kV accelerating voltage and 10 nA beam current.

Elements totalMagnesium numberLongitude of eventmineralWhole-rock geochemistrySample commentElectron microprobe JEOL JXA 8230Latitude of eventcarbonate C-O isotopyChromium(III) oxideManganese oxideSodium oxideIron oxide Fe2O3Iron oxideSilicon dioxideWhole rock geochemistryAluminium oxideMagnesium number liquidtotalMagnesium oxideMineralsElectron microprobe JEOL JXA-8230Event labelcarbonate C O isotopyCalcium oxidein-situ mineral geochemistryPotassium oxideElementsin situ mineral geochemistryMagnesium number mineralChromium III oxideEarth System ResearchTitanium dioxideFe2O3
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Sample details on OSL data for aeolian sediments in north-eastern part of European Sand Belt

2019

A compilation of previously published and unpublished absolute age (OSL and TL) determinations of aeolian sediments from the north-eastern part of European Sand Belt. Contains age, error, sampling depth, location etc. and a reference to data source. Coordinates of sampling locations for contemporary publications are taken from field observations (GPS), but older ones - published schematic maps. Data set is created according to schema of DATED-1 database (https://doi.org/10.1594/PANGAEA.848117).

EstoniaIdentificationReference sourceLocationStratigraphySiteDEPTH sediment/rockAge commentAnalytical methodduneAGETypeELEVATIONLONGITUDESample code/labelSediment typeMultiple investigationsEvent labelCommentSample code labelLithuaniaAge errorerrorLatviasediment rockBalticsDEPTHEarth System ResearchLATITUDEabsolute ageReference/source
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Calibrated international standards including ATHO-G, T1-G, and VG-568 (USNM 72854)

2021

FeOIntegrated Ocean Drilling Program / International Ocean Discovery Program (IODP)International Ocean Discovery Program IODPIron oxide FeOMarie Byrd LandCalcium oxideInternational Ocean Discovery Program (IODP)Potassium oxideExpedition 374Site U1524Ross SeaTephraSample IDIntegrated Ocean Drilling Program International Ocean Discovery Program IODPManganese oxideSodium oxideIron oxideEarth System ResearchSilicon dioxideTitanium dioxideTotalAluminium oxideChlorinetephrochronologyMagnesium oxide
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First pollen-based REVEALS reconstruction of vegetation abundance in Europe for five time windows between 6k years BP and present

2019

The submitted dataset includes the pollen-based REVEALS estimates of 11 plant functional types (PFTs) and 3 land-cover types (LCTs) for Europe, published in Trondman et al. (2015) as part of the results from the Swedish project LandClim I (Gaillard et al., 2010). In this project, pollen-based REVEALS estimates of land cover for 5 time windows of the Holocene were used to evaluate the scenarios of anthropogenic land-cover change (ALCC) KK and HYDE (Kaplan et al., 2017) and to study the biogeophysical forcing of ALCC between the time windows 6200-5700 years BP and CE 1600-1850 (Strandberg et al., 2014). The reconstruction is based on 25 pollen taxa for which pollen productivity of the corresp…

File nameFile sizeUniform resource locator link to fileFile contentUniform resource locator/link to fileEarth System ResearchFile format
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