cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5281/zenodo.15848192
title: Data-based estimates of ocean carbon uptake biased high from neglect of submonthly atmospheric pressure variability

description: Jeanne Dombret, Hugo Bellenger, Xavier Perrot, Laëtitia Parc, Lester Kwiatkowski, Frédéric Chevallier, Laurent Bopp, Marion Gehlen, Roland Séférian, Sarah Berthet and James C. Orr. 2025. Data-based estimates of ocean carbon uptake biased high from neglect of submonthly atmospheric pressure variability. Submitted to Geophysical Research Letters.

 

1) NetCDF files containing the monthly means of air-sea CO2 fluxes (fCO2) using different resolutions :

MONTH_MEANS_FLUX_H.nc : high frequency flux, accounting for hourly wind speed and atmospheric pressure, daily SST and 8-day SSS

MONTH_MEANS_FLUX_REF.nc : reference flux, accounting only for hourly wind speed.

MONTH_MEANS_FLUX_SSSM.nc : F_(P,T) , flux accounting for submonthly variability of wind speed, atmospheric pressure and SST.

MONTH_MEANS_FLUX_SSSM_SSTM.nc : F_P , flux accounting for submonthly variability of wind speed and atmospheric pressure

 

2) NetCDF files containing the monthly means of the atmospheric component of air-sea CO2 fluxes (pCO2_atm) :

F_ATM_SSSM.nc : atmospheric component of F_(P,T)

F_ATM_SSTM_SSSM.nc : atmospheric component of F_P

 

3) SUMS_FLUX_TIME.nc : NetCDF file containing, for each month, the sum of hourly values of high-frequency air-sea CO2 flux, the sum of squared hourly values of high-frequency air-sea CO2 flux, and the sum of time steps (hours) for which the high-frequency air-sea CO2 flux is calculated.

 

4) NetCDF files containing different components of the Reynolds decomposition of the high-frequency air-sea CO2 flux : 

REYNOLDS_K.nc : NetCDF file containing the monthly means of ocean and atmosphere CO2 fugacities (pCO2_sea_mean and pCO2_atm_mean), among other unused variables.

REYNOLDS_K.nc : NetCDF file containing :



monthly means of the squared wind speed anomaly : U_squared

monthly means of the covariance between wind speed and atmospheric CO2 fugacity : U_pCO2_atm

monthly means of the covariance between wind speed and oceanic CO2 fugacity : U_pCO2_sea

monthly means of the third-order mixed moment of wind speed and atmospheric CO2 fugacity : U2_pCO2_atm

monthly means of the third-order mixed moment of wind speed and oceanic CO2 fugacity : U2_pCO2_sea

monthly mean of wind speed : U_mean

monthly mean of a*((Sc/660)^(-1/2))*K0 : A_mean
DOI: 10.3535/zph-9ec-gbz
title: Stelis carnosilabia (A.H.Heller & A.D.Hawkes) Pridgeon & M.W.Chase

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.17026/ar/dsoap6
title: Plangebied Verbinding N69-mgr. Smetsstraat te Dommelen, gemeente Valkenswaard RAAPrap_4837_N69-12_20201211

description: &lt;p&gt;In opdracht van Boskalis heeft RAAP van donderdag 12 tot en met vrijdag 13 november 2020 een archeologisch proefsleuvenonderzoek uitgevoerd in het kader van het project Verbinding N69-Mgr. Smetsstraat in de gemeente Valkenswaard. Het doel van het proefsleuvenonderzoek was het vaststellen van de archeologische waarde van het terrein. Hiertoe was het noodzakelijk inzicht te krijgen in de aanwezigheid van vindplaatsen en hun precieze aard en omvang. In het verlengde daarvan is in kaart gebracht wat de consequenties zijn van de onderzoeksresultaten voor de verdere planvorming in het plangebied. Is de archeologische vindplaats behoudenswaardig, en, zo ja, kan deze behouden blijven of dient deze te worden opgegraven?&lt;/p&gt;&lt;p&gt;Tijdens het onderzoek zijn verspreid over het plangebied negen proefsleuven aangelegd met een totaal oppervlak van 944,31 m2. Dit komt neer op een dekkingsgraad van 8,87% van het totale plangebied. Verspreid over de proefsleuven zijn verschillende archeologische resten (acht greppels en één kuil) aangetroffen. De greppels maken deel uit van een groter geheel van perceleringsgreppels uit de nieuwe tijd, waarvan sporen aangetroffen waren bij het proefsleuvenonderzoek in het kader van de aanleg van de N69.&lt;/p&gt;
DOI: 10.3535/34l-a0g-kxh
title: Phytolacca rugosa A. Braun & Bouché

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/mzj-5p2-xxp
title: Stelis deregularis Barb.Rodr.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/2n7-aqh-5kz
title: Pitcairnia atrorubens (Beer) Baker

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/zdt-sp7-0gw
title: Persicaria punctata (Elliott) Small

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/dsm-g3x-l3n
title: Ophiopogon japonicus (Thunb.) Ker Gawl.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/hag-kyp-2kj
title: Peperomia Ruiz & Pav.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/lfy-27m-rwm
title: Peperomia Ruiz & Pav.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/n4j-3j6-d9g
title: Phytolacca L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/vzb-hx3-f0s
title: Pilea gomeziana W. C. Burger

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/qgc-w0p-r69
title: Persea Mill.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/czw-4tl-e1v
title: Pleurothallis bitumida Luer

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/dsd-yqp-pft
title: Pilea Lindl.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/el3-81n-0k3
title: Oncidium bracteatum Warsz. & Rchb.f.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/fgh-ljz-hmz
title: Petiveria alliacea L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/k6m-yms-e07
title: Peperomia Ruiz & Pav.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/nxa-k2k-1zy
title: Pilea Lindl.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/4kn-zx4-vr3
title: Peperomia Ruiz & Pav.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/07t-nfz-ejy
title: Peperomia Ruiz & Pav.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/h6w-tqa-ms3
title: Peperomia Ruiz & Pav.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/hrb-3ch-x3m
title: Pilea Lindl.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/yc7-2xc-qjz
title: Peperomia Ruiz & Pav.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/gtk-mfg-1fr
title: Peperomia pseudoalpina Trel.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/ye8-yjy-8g8
title: Pilea Lindl.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/dfb-amg-zgk
title: Phenax Wedd.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/xn7-yq3-x2x
title: Poaceae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/61f-86d-jqr
title: Poaceae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/rt8-5jc-7fx
title: Peperomia Ruiz & Pav.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/w7m-yh6-zfc
title: Peperomia Ruiz & Pav.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/v7l-acz-964
title: Phenax Wedd.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/vya-pcr-7dt
title: Pleurothallis ruscifolia (Jacq.) R.Br.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/31j-ly6-6aw
title: Pilea Lindl.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/e98-d9d-lm4
title: Specklinia lanceola (Sw.) Lindl.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/rv2-54t-p5z
title: Megathyrsus maximus (Jacq.) B.K.Simon & S.W.L.Jacobs

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/e1p-q40-tgs
title: Peperomia Ruiz & Pav.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/jn3-bzd-gam
title: Piperaceae Giseke

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/47r-x3c-pdm
title: Piper ceibense C. DC.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/a48-4kd-w0b
title: Piper L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/0l1-x34-yjg
title: Miconia laxivenula (Wurdack) Gamba & Almeda

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/ctd-5gv-tx5
title: Piper L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.15468/dl.3vn3g4
title: Occurrence Download

description: A dataset containing 614259 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Medicago lupulina"
 ]
}

 The dataset includes 614259 records from 3537 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000176-250710112747441/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.943806
title: Ecological parameters in a predator exclusion experiment in Thiisbukta and Longyearbyen, Svalbard

description: The file specifies the ecological parameters (abundance and biomass by species, evenness and Shannon index) of each taxon identified in the samples of the predator exclusion experiment. The experiment was conducted in the intertidal of Longyearbyen and Thiisbukta, the samples correspond to four treatments Start (start of experiment), Artefact (artefact), Control/End (manipulation-free zones) and Exclusion (predator exclusion).
DOI: 10.15468/dl.6nsk1r
title: Occurrence Download

description: A dataset containing 8 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is (Table 1) Proportion of Toxoplasma gondii seropositive arctic foxes (Alopex lagopus) by age group and geographic area"
 ]
}

 The dataset includes 8 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0027371-180131172636756/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.kybfu8
title: Occurrence Download

description: A dataset containing 12 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-75.6669 -42.07682,-69.47104 -42.07682,-69.47104 -37.4972,-75.6669 -37.4972,-75.6669 -42.07682))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Philodryas chamissonis (Wiegmann, 1835)"
 ]
}

 The dataset includes 12 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010887-230530130749713/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.944294
title: Length measurements from ZooScan images during POLARSTERN cruise PS78 (ARK-XXVI/1)

description: Abundances (ind. m-3) of zooplankton taxa were calculated from samples of Polarstern cruise PS78 (ARK-XXVI/1) on a transect across Fram Strait. Samples were taken with the Multinet midi (Hydrobios, Kiel), equipped with five nets (mesh size: 150 µm). To evaluate the relationships between equivalent spherical diameter (ESD) and prosome length for copepods or total length for other zooplankton 2725 images were randomly selected and measured across all zooplankton taxa. Samples were analysed via image-based ZooScan analyses. The classified images are available at the web application EcoTaxa: https://ecotaxa.obs-vlfr.fr/prj/2771
DOI: 10.15468/dl.cvdghy
title: Occurrence Download

description: A dataset containing 8 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is (Table 1) Proportion of Toxoplasma gondii seropositive arctic foxes (Alopex lagopus) by age group and geographic area"
 ]
}

 The dataset includes 8 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000011-160801124518078/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.944326
title: Dissolved and soluble pore water trace metals (Cd, U, V, Cu, As, Mo) from sediment core SO268/1_18-1 (MUC-04) during SONNE cruise SO268/1, central Pacific

description: Physical and chemical trace metal speciation are important for our understanding of metal cycling and potential toxicity to marine life. Trace metals can have different bioavailability and behave differently in diffusion processes or particle-solution interactions depending on their physical and chemical forms. Here we investigated dissolved (&lt; 0.2 µm) and soluble (&lt; 0.02 µm) concentrations of Mn, Co, Cu, V, Mo, U, Cd, and As in oxic and suboxic deep-sea sediments of the central equatorial Pacific. Vanadium, Mo, U, Cd, and As showed no significant difference between the dissolved and soluble concentrations suggesting that they are present as inorganic ionic species or organic complexes either in the truly dissolved or small colloidal fraction. The same was true for Mn and Co in suboxic pore waters. In contrast, the colloidal fraction (&gt; 0.02 µm &lt; 0.2 µm) of Cu increased with depth. Samples were taken during the SO268 cruise to the German and Belgian license areas for polymetallic nodule mining in the Clarion Clipperton Fracture Zone as part of the MiningImpact project. Sediment cores were collected with multicorers (MUC), ROV push cores (PUC), and gravity corers (GC). Pore water was extracted by means of centrifugation and sequential filtration using cleaned polyethersulfone (PES) syringe filters (0.2 µm) and Anopore syringe filters (0.02 µm). Pore water was preserved by acidification to ~ pH 1.8 with concentrated ultrapure HCl. Samples were measured by Inductively Coupled Plasma-Mass Spectrometry.
DOI: 10.1594/pangaea.944328
title: Dissolved and soluble pore water trace metals (Cd, U, V, Cu, As, Mo) from sediment core SO268/1_38-1 (MUC-07) during SONNE cruise SO268/1, central Pacific

description: Physical and chemical trace metal speciation are important for our understanding of metal cycling and potential toxicity to marine life. Trace metals can have different bioavailability and behave differently in diffusion processes or particle-solution interactions depending on their physical and chemical forms. Here we investigated dissolved (&lt; 0.2 µm) and soluble (&lt; 0.02 µm) concentrations of Mn, Co, Cu, V, Mo, U, Cd, and As in oxic and suboxic deep-sea sediments of the central equatorial Pacific. Vanadium, Mo, U, Cd, and As showed no significant difference between the dissolved and soluble concentrations suggesting that they are present as inorganic ionic species or organic complexes either in the truly dissolved or small colloidal fraction. The same was true for Mn and Co in suboxic pore waters. In contrast, the colloidal fraction (&gt; 0.02 µm &lt; 0.2 µm) of Cu increased with depth. Samples were taken during the SO268 cruise to the German and Belgian license areas for polymetallic nodule mining in the Clarion Clipperton Fracture Zone as part of the MiningImpact project. Sediment cores were collected with multicorers (MUC), ROV push cores (PUC), and gravity corers (GC). Pore water was extracted by means of centrifugation and sequential filtration using cleaned polyethersulfone (PES) syringe filters (0.2 µm) and Anopore syringe filters (0.02 µm). Pore water was preserved by acidification to ~ pH 1.8 with concentrated ultrapure HCl. Samples were measured by Inductively Coupled Plasma-Mass Spectrometry.
DOI: 10.1594/pangaea.943852
title: Soil properties and methane cycling gene abundances in the foreland soil on the Tibetan Plateau

description: Glacier foreland soil flooded by melt water annually during the melting season, altering soil water content or other soil properties. We collected soil samples in the Longxiazailongba Glacier foreland on the Tibetan Plateau in August 2017. Measuring the soil pH, moisture, Ammonium nitrogen (NH4+), Nitrate nitrogen (NO3-), Total Nitrogen (TN), Organic matter (OM), Available phosphorus (AP). Soils were neutral to slight alkaline, and pH of hollows were significantly higher than those in hummock soils. In contrast, available phosphorous was significantly higher in hummock soils than in hollow soils. Besides, we also quanified mcrA and pmoA gene abundances. With measuring methane fluxes in June (pre-melting season) and August (melting season) 2020, we also measured the soil moisture and pH. The results indicate that soil moisture was significantly higher in melting season (August) than in pre-melting season (June).
description: The data includes soil pH, moisture, Ammonium nitrogen (NH4+), Nitrate nitrogen (NO3-), Total Nitrogen (TN), Organic matter (OM), and Available phosphorus (AP) in August 2017. mcrA and pmoA gene abundance in the forelad soil of Logxiazailongba Glacier on the Tibetan Plateau. Besides, pH and moisture were measured in soil of June and August 2020.
DOI: 10.1594/pangaea.944329
title: Dissolved and soluble pore water trace metals (Cd, U, V, Cu, As, Mo) from sediment core SO268/2_106-1 (MUC-22) during SONNE cruise SO268/2, central Pacific

description: Physical and chemical trace metal speciation are important for our understanding of metal cycling and potential toxicity to marine life. Trace metals can have different bioavailability and behave differently in diffusion processes or particle-solution interactions depending on their physical and chemical forms. Here we investigated dissolved (&lt; 0.2 µm) and soluble (&lt; 0.02 µm) concentrations of Mn, Co, Cu, V, Mo, U, Cd, and As in oxic and suboxic deep-sea sediments of the central equatorial Pacific. Vanadium, Mo, U, Cd, and As showed no significant difference between the dissolved and soluble concentrations suggesting that they are present as inorganic ionic species or organic complexes either in the truly dissolved or small colloidal fraction. The same was true for Mn and Co in suboxic pore waters. In contrast, the colloidal fraction (&gt; 0.02 µm &lt; 0.2 µm) of Cu increased with depth. Samples were taken during the SO268 cruise to the German and Belgian license areas for polymetallic nodule mining in the Clarion Clipperton Fracture Zone as part of the MiningImpact project. Sediment cores were collected with multicorers (MUC), ROV push cores (PUC), and gravity corers (GC). Pore water was extracted by means of centrifugation and sequential filtration using cleaned polyethersulfone (PES) syringe filters (0.2 µm) and Anopore syringe filters (0.02 µm). Pore water was preserved by acidification to ~ pH 1.8 with concentrated ultrapure HCl. Samples were measured by Inductively Coupled Plasma-Mass Spectrometry.
DOI: 10.1594/pangaea.944330
title: Dissolved and soluble pore water trace metals (Cd, U, V, Cu, As, Mo) from sediment core SO268/2_136-1 (MUC-28) during SONNE cruise SO268/2, central Pacific

description: Physical and chemical trace metal speciation are important for our understanding of metal cycling and potential toxicity to marine life. Trace metals can have different bioavailability and behave differently in diffusion processes or particle-solution interactions depending on their physical and chemical forms. Here we investigated dissolved (&lt; 0.2 µm) and soluble (&lt; 0.02 µm) concentrations of Mn, Co, Cu, V, Mo, U, Cd, and As in oxic and suboxic deep-sea sediments of the central equatorial Pacific. Vanadium, Mo, U, Cd, and As showed no significant difference between the dissolved and soluble concentrations suggesting that they are present as inorganic ionic species or organic complexes either in the truly dissolved or small colloidal fraction. The same was true for Mn and Co in suboxic pore waters. In contrast, the colloidal fraction (&gt; 0.02 µm &lt; 0.2 µm) of Cu increased with depth. Samples were taken during the SO268 cruise to the German and Belgian license areas for polymetallic nodule mining in the Clarion Clipperton Fracture Zone as part of the MiningImpact project. Sediment cores were collected with multicorers (MUC), ROV push cores (PUC), and gravity corers (GC). Pore water was extracted by means of centrifugation and sequential filtration using cleaned polyethersulfone (PES) syringe filters (0.2 µm) and Anopore syringe filters (0.02 µm). Pore water was preserved by acidification to ~ pH 1.8 with concentrated ultrapure HCl. Samples were measured by Inductively Coupled Plasma-Mass Spectrometry.
DOI: 10.1594/pangaea.944331
title: Dissolved and soluble pore water trace metals (Cd, U, V, Cu, As, Mo) from sediment core SO268/2_171-1 (MUC-31) during SONNE cruise SO268/2, central Pacific

description: Physical and chemical trace metal speciation are important for our understanding of metal cycling and potential toxicity to marine life. Trace metals can have different bioavailability and behave differently in diffusion processes or particle-solution interactions depending on their physical and chemical forms. Here we investigated dissolved (&lt; 0.2 µm) and soluble (&lt; 0.02 µm) concentrations of Mn, Co, Cu, V, Mo, U, Cd, and As in oxic and suboxic deep-sea sediments of the central equatorial Pacific. Vanadium, Mo, U, Cd, and As showed no significant difference between the dissolved and soluble concentrations suggesting that they are present as inorganic ionic species or organic complexes either in the truly dissolved or small colloidal fraction. The same was true for Mn and Co in suboxic pore waters. In contrast, the colloidal fraction (&gt; 0.02 µm &lt; 0.2 µm) of Cu increased with depth. Samples were taken during the SO268 cruise to the German and Belgian license areas for polymetallic nodule mining in the Clarion Clipperton Fracture Zone as part of the MiningImpact project. Sediment cores were collected with multicorers (MUC), ROV push cores (PUC), and gravity corers (GC). Pore water was extracted by means of centrifugation and sequential filtration using cleaned polyethersulfone (PES) syringe filters (0.2 µm) and Anopore syringe filters (0.02 µm). Pore water was preserved by acidification to ~ pH 1.8 with concentrated ultrapure HCl. Samples were measured by Inductively Coupled Plasma-Mass Spectrometry.