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  • 1
    facet.materialart.
    Unknown
    Trace metal and black carbon data in seawater samples taken in southern California during the 2017 Thomas Fire (2021)
    PANGAEA
    Details
    Publication Date: 2023-01-30
    Keywords: Ammonia; black carbon; Black carbon, dissolved; Cadmium; Carbon, organic, dissolved; Chlorophyll a; Cobalt; Copper; Date/Time of event; DEPTH, water; Event label; Iron; Latitude of event; Lead; Longitude of event; Manganese; Nickel; Nitrate and Nitrite; Phosphate; Replicates; Salinity; Santa Barbara Basin; Santa Barbara Basin, California, United States of America; SBB_SW-1; SBB_SW-2; SBB_SW-3; SBB_SW-4; SBB_SW-5; SBB_SW-6; SBB_SW-7; SBB_SW-8; Silicate; SW-1; SW-2; SW-3; SW-4; SW-5; SW-6; SW-7; SW-8; Temperature, water; Thomas Fire; trace metals; Ventura River; wildfire; Zinc; δ13C, chlorophyll a; δ13C, chlorophyll a, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 164 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    Trace metal and black carbon data in river water samples taken in southern California during the 2017 Thomas Fire (2021)
    PANGAEA
    Details
    Publication Date: 2023-01-30
    Keywords: black carbon; Black carbon, dissolved; Cadmium; Calculated; Carbon, organic, dissolved; Cobalt; Comment; Copper; Date/Time of event; Discharge; Event label; Height; Iron; Latitude of event; Lead; Longitude of event; Manganese; Nickel; Santa Barbara Basin; Thomas Fire; Time in hours; trace metals; Ventura River; Ventura River, California, United States of America; VR-1; VR-10; VR-11; VR-12; VR-13; VR-2; VR-3; VR-4; VR-5; VR-6; VR-7; VR-8; VR-9; wildfire; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 287 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 3
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    Unknown
    Trace metal and black carbon data in aerosol, seawater, and floodwater samples taken in southern California during the 2017 Thomas Fire (2021)
    PANGAEA
    Details
    Publication Date: 2023-07-11
    Description: Aerosol, seawater, and floodwater samples were taken during the 2017 California Thomas Fire and subsequent flash flood event. These samples were used to examine how fire-flood sequences affect metal and black carbon delivery to coastal waters, such as the Santa Barbara Basin (SBB). On day 11 of the Thomas Fire, aerosols sampled at sea level under a smoke plume over the SBB found high levels of PM2.5, levoglucosan, and black carbon (average: 49 μg/m^3, 1.05 μg/m^3, 14.93 μg/m^3, respectively) and both soluble and total aerosol metal concentrations were consistent with a forest fire signature. Metal, nutrient, and chlorophyll a concentrations in surface seawater (average: 2.42 nM Fe, 0.14 µM phosphate, and 0.44 µgChla/L) were similar to concentrations during non-fire conditions, thus we could not establish fire-related increases in the SBB surface waters. On days 37 to 40 of the fire, before, during, and after a flash flood in the Ventura River, dissolved organic carbon, dissolved black carbon, and dissolved metal concentrations were positively correlated with discharge. Our findings confirm that black carbon and metals were released by the Thomas Fire and transported by both atmospheric and fluvial pathways.
    Keywords: black carbon; Santa Barbara Basin; Thomas Fire; trace metals; Ventura River; wildfire
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 4
    facet.materialart.
    Unknown
    Trace metal and black carbon data in aerosol samples taken in southern California during the 2017 Thomas Fire (2021)
    PANGAEA
    Details
    Publication Date: 2023-07-11
    Keywords: black carbon; Black carbon, aerosol; Cadmium; Cadmium, soluble; Cobalt; Cobalt, soluble; Copper; Copper, soluble; Date/time end; Date/time start; Iron; Iron, soluble; Lead; Lead, soluble; Levoglucosan; Manganese; Manganese, soluble; Manganese, total; Nickel; Nickel, soluble; Particulate matter, 〈 2.5 µm; Sample ID; Sample volume; Santa_Barbara_Basin_Aerosols; Santa Barbara Basin; Size fraction; Thomas Fire; trace metals; Ventura River; wildfire; Zinc; Zinc, soluble
    Type: Dataset
    Format: text/tab-separated-values, 383 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 5
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    Unknown
    Metal data collected during the Tara Pacific Expedition 2016-2018 (2022)
    PANGAEA
    Details
    Publication Date: 2024-01-06
    Description: The Tara Pacific expedition (2016-2018) sampled coral ecosystems around 32 islands in the Pacific Ocean, and sampled the surface of oceanic waters at 249 locations, resulting in the collection of nearly 58,000 samples. The expedition was designed to systematically study corals, fish, plankton, and seawater, and included the collection of samples for advanced biogeochemical, molecular, and imaging analysis. Here we provide the total dissolvable (i.e. acidified unfiltered whole seawater) Fe, Zn, Mn, Ni, Cd, Co, Cu, and Pb concentrations for 242 surface seawater samples. Trace metal analyses were performed with the goals of characterizing the surface seawater trace metal distribution across the open ocean and coastal regions in both the Atlantic and Pacific, and exploring metal-dependent ecosystem structure and metabolism. Some of the findings include high concentrations of iron (Fe) and manganese (Mn) in several regions, such as the North Atlantic Ocean and near the South Pacific islands, possibly due to Saharan dust and hydrothermal vent input, respectively. Elevated lead (Pb) was found in the North Pacific near southeast Asia, where anthropogenic sources may contribute. We also observe interbasin differences in concentrations for most of the metals, such as cobalt (Co), which is relatively high in the North Atlantic in comparison to the Pacific, perhaps due to dust deposition or continental weathering. There are also intrabasin differences in metal concentrations between oligotrophic and upwelling regions, exemplified by the higher cadmium (Cd) concentrations near the Peruvian coast, likely due to upwelling. Overall we captured high-resolution trace metal data that depicts the nuances in the metal distribution of the global ocean.
    Keywords: Bottle, multi level trace metal; Cadmium, dissolved; Cobalt, dissolved; Comment; Copper, dissolved; Depth, bottom/max; Depth, top/min; DEPTH, water; Environmental feature; Event label; Fondation Tara Expeditions; FondTara; HANDHELD-BOW-POLE; INLINE-PUMP; Iron, dissolved; Lead, dissolved; Manganese, dissolved; MLTM; Nickel, dissolved; OA000-I00-S00; OA000-I10-S01; OA000-I10-S02; OA000-I14-S00; OA000-I18-S03; OA000-I21-S01; OA000-I21-S02; OA000-I31-S00; OA001-I00-S00; OA002-I00-S00; OA003-I00-S00; OA004-I00-S00; OA005-I00-S00; OA006-I00-S00; OA009-I00-S00; OA010-I00-S00; OA011-I00-S00; OA012-I00-S00; OA013-I00-S00; OA014-I00-S00; OA015-I00-S00; OA016-I00-S00; OA017-I00-S00; OA018-I00-S00; OA019-I00-S00; OA020-I00-S00; OA021-I00-S00; OA022-I00-S00; OA023-I00-S00; OA024-I00-S00; OA025-I00-S00; OA026-I00-S00; OA027-I00-S00; OA028-I00-S00; OA029-I03-S00; OA030-I03-S00; OA031-I00-S00; OA032-I00-S00; OA033-I00-S00; OA039-I00-S00; OA040-I00-S00; OA041-I04-S00; OA042-I04-S00; OA043-I04-S00; OA044-I04-S00; OA045-I00-S00; OA046-I00-S00; OA047-I00-S00; OA048-I05-S00; OA049-I05-S00; OA050-I05-S00; OA051-I00-S00; OA052-I00-S00; OA053-I06-S00; OA054-I06-S00; OA055-I06-S00; OA056-I00-S00; OA057-I00-S00; OA058-I00-S00; OA061-I07-S00; OA062-I00-S00; OA063-I08-S00; OA064-I08-S00; OA065-I00-S00; OA066-I09-S00; OA067-I09-S00; OA068-I10-S00; OA069-I10-S00; OA070-I10-S00; OA071-I10-S00; OA072-I11-S00; OA073-I11-S00; OA074-I11-S00; OA075-I12-S00; OA076-I12-S00; OA077-I12-S00; OA078-I00-S00; OA079-I00-S00; OA080-I13-S00; OA081-I13-S00; OA082-I13-S00; OA083-I13-S00; OA084-I00-S00; OA085-I00-S00; OA086-I00-S00; OA087-I00-S00; OA088-I00-S00; OA089-I14-S00; OA090-I14-S00; OA091-I14-S00; OA092-I15-S00; OA093-I15-S00; OA094-I00-S00; OA095-I16-S00; OA096-I00-S00; OA097-I00-S00; OA098-I00-S00; OA099-I00-S00; OA100-I00-S00; OA101-I00-S00; OA102-I00-S00; OA103-I00-S00; OA104-I00-S00; OA105-I00-S00; OA106-I00-S00; OA107-I00-S00; OA108-I00-S00; OA109-I00-S00; OA110-I00-S00; OA111-I00-S00; OA112-I00-S00; OA113-I00-S00; OA114-I00-S00; OA115-I00-S00; OA116-I00-S00; OA117-I00-S00; OA118-I00-S00; OA119-I00-S00; OA120-I00-S00; OA121-I00-S00; OA122-I00-S00; OA123-I00-S00; OA124-I00-S00; OA125-I00-S00; OA126-I00-S00; OA127-I18-S00; OA128-I18-S00; OA129-I18-S00; OA130-I18-S00; OA131-I00-S00; OA132-I00-S00; OA133-I00-S00; OA134-I00-S00; OA135-I00-S00; OA136-I00-S00; OA137-I00-S00; OA139-I00-S00; OA140-I19-S00; OA141-I19-S00; OA142-I19-S00; OA143-I19-S00; OA144-I00-S00; OA145-I20-S00; OA146-I20-S00; OA147-I00-S00; OA148-I21-S00; OA149-I21-S00; OA150-I00-S00; OA151-I00-S00; OA152-I00-S00; OA153-I00-S00; OA154-I00-S00; OA155-I22-S00; OA156-I23-S00; OA157-I23-S00; OA158-I23-S00; OA159-I23-S00; OA160-I24-S00; OA161-I24-S00; OA162-I24-S00; OA163-I00-S00; OA164-I00-S00; OA165-I00-S00; OA166-I25-S00; OA167-I26-S00; OA168-I26-S00; OA169-I00-S00; OA170-I27-S00; OA171-I27-S00; OA172-I28-S00; OA173-I00-S00; OA174-I00-S00; OA175-I00-S00; OA176-I00-S00; OA177-I00-S00; OA178-I00-S00; OA179-I00-S00; OA180-I00-S00; OA181-I00-S00; OA182-I00-S00; OA184-I00-S00; OA185-I00-S00; OA186-I00-S00; OA187-I00-S00; OA188-I00-S00; OA189-I00-S00; OA190-I29-S00; OA191-I29-S00; OA192-I00-S00; OA193-I00-S00; OA194-I00-S00; OA195-I00-S00; OA196-I00-S00; OA197-I00-S00; OA198-I00-S00; OA199-I00-S00; OA200-I00-S00; OA201-I00-S00; OA202-I00-S00; OA203-I00-S00; OA204-I00-S00; OA205-I00-S00; OA206-I00-S00; OA207-I00-S00; OA208-I00-S00; OA209-I00-S00; OA210-I00-S00; OA211-I00-S00; OA212-I00-S00; OA213-I00-S00; OA214-I00-S00; OA216-I30-S00; OA217-I00-S00; OA218-I00-S00; OA221-I31-S00; OA223-I00-S00; OA224-I00-S00; OA225-I00-S00; OA226-I00-S00; OA227-I00-S00; OA228-I00-S00; OA229-I00-S00; OA230-I32-S00; OA232-I32-S00; OA233-I00-S00; OA234-I00-S00; OA235-I00-S00; OA236-I00-S00; OA237-I00-S00; OA238-I00-S00; OA240-I00-S00; OA241-I00-S00; OA242-I00-S00; OA243-I00-S00; OA244-I00-S00; OA245-I00-S00; OA246-I00-S00; OA247-I00-S00; OA249-I00-S00; Pacific; Quality control; Sample code/label; Sample comment; Sample ID; surface seawater; SV Tara; TARA_20160529T1635Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160530T1630Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160531T1345Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160601T1629Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160602T1436Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160604T1445Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160605T1850Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160608T1605Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160609T1734Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160610T1502Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160611T1513Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160613T1430Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160614T1325Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160615T1643Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160616T1906Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160617T1920Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160618T1702Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160619T1928Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160620T2234Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160621T1710Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160622T1700Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160623T1715Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160624T2100Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160625T1800Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160626T1800Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160627T1350Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160706T2202Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160712T1649Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160816T2000Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20160817T2124Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20160818T2253Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160819T2150Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160819T2355Z_D_O-SRF_INLINE-PUMP; TARA_20160820T2229Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160822T2300Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160823T2325Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160824T2325Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160825T2355Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160828T0013Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160828T1845Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160829T1944Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160830T1644Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20160831T0515Z_N_I-SRF_HANDHELD-BOW-POLE; TARA_20160831T1723Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20160908T0615Z_N_I-SRF_HANDHELD-BOW-POLE; TARA_20160909T2325Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160910T1615Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160911T1802Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160912T1712Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20160917T1520Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20160917T2237Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20160919T0110Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20160919T1708Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160920T2340Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20160921T0603Z_N_I-SRF_HANDHELD-BOW-POLE; TARA_20160928T0751Z_N_I-SRF_HANDHELD-BOW-POLE; TARA_20160929T0110Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20160929T1905Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20161001T1721Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20161111T0102Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20161111T1810Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20161112T1810Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20161118T0317Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20161119T1921Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20161120T1915Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20161120T2155Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20161127T0232Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20161127T2023Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20161128T0826Z_N_I-SRF_HANDHELD-BOW-POLE; TARA_20161130T0206Z_D_S-SRF_HANDHELD-BOW-POLE; TARA_20161201T0215Z_D_S-SRF_HANDHELD-BOW-POLE; TARA_20161203T1902Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20161204T0303Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20161204T1723Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20161228T0551Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20161228T2150Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20161229T2310Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20170103T0931Z_N_I-SRF_HANDHELD-BOW-POLE; TARA_20170103T2210Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20170104T2118Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20170105T2251Z_D_O-SRF_HANDHELD-BOW-POLE; TARA_20170106T0955Z_N_I-SRF_HANDHELD-BOW-POLE; TARA_20170106T2245Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20170112T0647Z_D_I-SRF_HANDHELD-BOW-POLE; TARA_20170112T2125Z_D_I-SRF_HANDHELD-
    Type: Dataset
    Format: text/tab-separated-values, 14588 data points
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  • 6
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    Recycling of dissolved iron in the North Pacific Subtropical Gyre (2023)
    Association for the Sciences of Limnology and Oceanography
    Details
    Publication Date: 2023-03-08
    Description: © The Author(s), 2022. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Hawco, N. J., Yang, S.-C., Pinedo-Gonzalez, P., Black, E. E., Kenyon, J., Ferron, S., Bian, X., & John, S. G. Recycling of dissolved iron in the North Pacific Subtropical Gyre. Limnology and Oceanography, 67(11), (2022): 2448-2465, https://doi.org/10.1002/lno.12212.
    Description: The importance of iron as a limiting nutrient in the open ocean is widely recognized, but there is substantial uncertainty about the rate that it cycles in the marine environment. Here, we combine measurements from the water column, sediment traps, and incubations to constrain Fe turnover during summer at Station ALOHA in the North Pacific Subtropical Gyre. Using low levels of 57Fe–58Fe double spike, measured with high precision by multi-collector inductively coupled plasma mass spectrometry, we find Fe uptake rates of 30–60 pM d−1 throughout the euphotic zone. Dissolved Fe turnover times are estimated at 10–15 d in the mixed layer and 1–3 d near the deep chlorophyll maximum. Aerosol Fe supply inferred from a thorium isotope mass balance indicates that the dissolved Fe residence time is approximately 6 months in the upper euphotic zone (0–75 m), relative to external sources, and 2 months in the lower euphotic zone (75–150 m). To reconcile these observations, the average Fe atom must be recycled over 25 times at Station ALOHA in both the upper and lower euphotic zones (an “Fe ratio” equal to 0.04 and 0.03, respectively), a level of conservation that has only been documented in Fe-limited regions thus far. At steady state, this scenario requires an aerosol Fe solubility of 4.5%, which is similar to dissolution experiments from Pacific Ocean aerosols. Our results suggest that the oligotrophic ocean is capable of recycling iron efficiently even when these ecosystems are not demonstrably iron-limited.
    Description: This work was also supported by the Simons Foundation (602538 and 823167 to N.J.H., 329108 to S.G.J) and National Science Foundation grants 2022969 to N.J.H. and 1911990 to S.F.
    Repository Name: Woods Hole Open Access Server
    Type: Article
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  • 7
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    Dissolved REE concentrations from the US GEOTRACES Arctic cruise (GN01, HLY1502) from August to October 2015 (2021)
    Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu
    Details
    Publication Date: 2022-05-26
    Description: Dataset: GN01 Dissolved REEs LDEO
    Description: Dissolved REE concentrations from the US GEOTRACES Arctic cruise (GN01, HLY1502) from August to October 2015. These samples were analyzed at Lamont-Doherty Earth Observatory (LDEO). For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/835533
    Description: NSF Division of Ocean Sciences (NSF OCE) OCE-1459513, NSF Division of Ocean Sciences (NSF OCE) OCE-1458936, NSF Division of Ocean Sciences (NSF OCE) OCE-1459716
    Repository Name: Woods Hole Open Access Server
    Type: Dataset
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    PAPER (OA)
  • 8
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    A new purification method for Ni and Cu stable isotopes in seawater provides evidence for widespread Ni isotope fractionation by phytoplankton in the North Pacific (2020)
    Elsevier
    Details
    Publication Date: 2020-08-01
    Print ISSN: 0009-2541
    Electronic ISSN: 1872-6836
    Topics: Chemistry and Pharmacology , Geosciences
    Published by Elsevier
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  • 9
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    A comparison of marine Fe and Mn cycling: U.S. GEOTRACES GN01 Western Arctic case study (2020)
    Elsevier
    Details
    Publication Date: 2020-11-01
    Print ISSN: 0016-7037
    Electronic ISSN: 1872-9533
    Topics: Chemistry and Pharmacology , Geosciences
    Published by Elsevier
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  • 10
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    Anthropogenic Asian aerosols provide Fe to the North Pacific Ocean (2020)
    National Academy of Sciences
    Details
    Publication Date: 2020-10-22
    Description: Fossil-fuel emissions may impact phytoplankton primary productivity and carbon cycling by supplying bioavailable Fe to remote areas of the ocean via atmospheric aerosols. However, this pathway has not been confirmed by field observations of anthropogenic Fe in seawater. Here we present high-resolution trace-metal concentrations across the North Pacific Ocean (158°W from 25°to 42°N). A dissolved Fe maximum was observed around 35°N, coincident with high dissolved Pb and Pb isotope ratios matching Asian industrial sources and confirming recent aerosol deposition. Iron-stable isotopes reveal in situ evidence of anthropogenic Fe in seawater, with low δ56Fe (−0.23‰ 〉 δ56Fe 〉 −0.65‰) observed in the region that is most influenced by aerosol deposition. An isotope mass balance suggests that anthropogenic Fe contributes 21–59% of dissolved Fe measured between 35° and 40°N. Thus, anthropogenic aerosol Fe is likely to be an important Fe source to the North Pacific Ocean.
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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