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| griddap | Subset | tabledap | Make A Graph | wms | files | Accessible | Title | Summary | FGDC | ISO 19115 | Info | Background Info | RSS | Institution | Dataset ID | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| log in | [Amazon isotopes POC CN] - Radiocarbon, stable carbon isotope and C/N composition of Amazon River particulate organic carbon (POC) from samples collected aboard the R/V Mirage in May of 2023 (Collaborative Research: What Happens to Terrestrial Organic Matter in the Ocean? Solving the Mystery Behind an Iconic Question) | This dataset contains 48 samples of particulate organic carbon collected from the lower Amazon River from May 4th-10th, 2023. The tabulated data include sample number, date, latitude, longitude, sample type, fraction modern radiocarbon (Fm), Δ14C, δ13C, and molar C/N ratio for suspended sediment, bedload, and bank/flood-deposit samples. Sampling was conducted at discrete sites along the lower Amazon mainstem and nearby depositional environments, so spatial coverage is variable rather than uniform. Samples were collected in the field and analyzed to determine radiocarbon content, stable carbon isotopic composition, and elemental stoichiometry in order to evaluate the sources, transport pathways, and age of riverine organic carbon. The dataset will be useful to investigators studying carbon cycling, sediment dynamics, and organic matter provenance in large tropical river systems, and it may contribute to broader studies of land-to-ocean carbon transfer. The data were collected and interpreted by the study investigators.\n\ncdm_data_type = Other\nVARIABLES:\nsample_number (unitless)\ndate (units)\nlatitude (degrees_north)\nlongitude (degrees_east)\nsample_type (unitless)\ndepth (m)\nFm (unitless)\nD14C (per mil (‰))\nd13C (per mil (‰))\nC_N (unitless)\n | BCO-DMO | bcodmo_dataset_1002805_v1 | ||||||||||||
| log in | [Foraminiferal radiocarbon- MAZ-1E-04] - Radiocarbon measurements from planktic and benthic foraminifera in the eastern Pacific during the last deglaciation determined from core MAZ-1E-04 collected on cruise MAZ-I aboard the R/V El Puma in April 2015 (Glacial-Interglacial Changes in Oxygen Minimum Zones Using Deep-Dwelling, Low-Oxygen Planktic Foraminifera) | The structure and drivers of oxygen minimum zone (OMZ) evolution in the Eastern Tropical North Pacific (ETNP) are investigated from ~20.7-10 ka using a multi-proxy from core MAZ-1E-04 (22°54.29'N, 106°54.59'W; 1463 m depth). Understanding how OMZ vertical structure changed during past glacial/interglacial cycles will help elucidate the drivers and patterns of OMZ expansion/contraction on longer timescales. \n\nHere, radiocarbon measurements from planktic and benthic foraminifera from core MAZ-1E-04 collected on cruise MAZ-I aboard the R/V El Puma in April 2015 are used to construct an age model and calculate ventilation ages. Universidad Nacional Autónoma de México financed ship time and M. Alejandro Rodríguez Ramírez directed the oceanographic campaign to retrieve the core.\n\ncdm_data_type = Other\nVARIABLES:\nPlanktic_Core_Depth (centimeter (cm))\nPlanktic_species (unitless)\nPlanktic_weight (milligrams (mg))\nRaw_planktic_14C (14C yr BP)\nPlanktic_14C_error_1_SD (14C yr BP)\nBenthic_Core_Depth (centimeters (cm))\nBenthic_species (unitless)\nBenthic_weight (milligrams (mg))\nRaw_Benthic_14C_Uvigerina_spp (14C yr BP)\nBenthic_14C_error_1_SD (14C yr BP)\nVentilation_Age_B_Atm_14C (years)\nMarine_Reservoir_Age (years)\nMRA_corrected_planktic_14C (years)\nIntcal20_corrected_planktic_14C (years before present (yr BP))\nd14C (per mil)\nRemoved_from_analyses_flag (unitless)\n | BCO-DMO | bcodmo_dataset_991470_v1 | ||||||||||||
| https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_917642_v1 | https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_917642_v1.graph | https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_917642_v1/ | public | [North Pacific Atmospheric Particulates] - Total organic carbon content, total nitrogen content, and carbon isotope (13C and 14C) composition of atmospheric particulates from aerosol samples collected on the R/V Dong Fang Hong-3 in the western North Pacific from October to December 2019 (Collaborative Research: Characterization of Reactive Nitrogen in The North Pacific Atmosphere) | These data include the content of total organic carbon and total nitrogen, and carbon isotope (13C and 14C) composition of atmospheric particulates collected in the western North Pacific. On-ship aerosol sampling was conducted on the R/V Dong Fang Hong-3 during a cruise to the western North Pacific from October 31 to December 1, 2019. Sampling was conducted using two portable aerosol particle samplers (model 2030, Qingdao Laoying Environmental Technology Co.) with a filter size of 9 cm O.D. Recognizing the deposition of atmospheric particulates has the potential to further understanding of the role of atmospheric deposition in the carbon cycle and biogeochemistry in the ocean. These data assess the contribution of atmospheric deposition to organic carbon and were conducted by Prof. XuChen Wang of the Key Laboratory of Marine Chemistry Theory, Ocean University of China, Qingdao 266100, China.\n\ncdm_data_type = Other\nVARIABLES:\nSample_number (unitless)\nDate (unitless)\nStart_time (unitless)\ntime (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)\nSampling_period (hours (h))\nLatitude (degrees_north)\nlongitude (degrees_east)\nTotal_air_volume (liters (L))\nParticle_weight (milligrams (mg))\nTotal_particulates_concentration (micrograms per cubic meter (ug/m3))\nPOC (percent (%))\nTN (percent (%))\nPOC_d13C (per mil (‰))\nd14C (per mil (‰))\nd14C_stdev (per mil (‰))\nAge_14C (Year BP)\nAge_14C_stdev (Year BP)\n | https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_917642_v1/index.htmlTable | https://www.bco-dmo.org/dataset/917642
| https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_917642_v1.rss | https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_917642_v1&showErrors=false&email= | BCO-DMO | bcodmo_dataset_917642_v1 | |||||
| https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_1006750_v1 | https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_1006750_v1.graph | https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_1006750_v1/ | public | [Santa Clara River C isotope data 2023-24] - 14C and 13C measurements of particulate and sedimentary organic carbon from the Santa Clara River, California, during the 2023–2024 El Niño event (RAPID: The effect of El Nino on delivery of organic carbon in the Santa Clara River, CA) | Radiocarbon (Δ14C) and stable carbon isotope (δ13C) values were measured in particulate organic carbon (POC) from river water and sedimentary organic carbon (SOC) from river silt and beach sand collected by Niels Hauksson from the Santa Clara River (SCR), California, during the 2023–2024 El Niño event from December 2023 to April 2024. The SCR watershed has experienced significant change over the past decades due to both urban development and increased drought. The dataset contains measurements of POC samples from Santa Clara River water and sedimentary organic carbon (SOC) from river silt and beach sand, including sample collection information, Δ14C and δ13C measurements and associated analytical uncertainties, and sample collection coordinates.\n\nThis analysis is helping to establish whether the observed change in the aged OC end member is the result of variation in precipitation or due to other alterations in the watershed. If precipitation is the main control of the aged end member, we can estimate how the expected changes in local climate will affect the OC exported by the SCR. Dr. Hauksson, undergrad student Taylor Hart and PI Ellen Druffel analyzed the samples and are writing the papers with these data.\n\ncdm_data_type = Other\nVARIABLES:\nUCID_sample_number (unitless)\nsample_type (unitless)\nsite_name (unitless)\nfilter_number (unitless)\ndate_collected (unitless)\nD14C (‰)\nD14C_error (‰)\nd13C (‰)\nd13C_error (‰)\nlatitude (degrees_north)\nlongitude (degrees_east)\n | https://erddap.bco-dmo.org/erddap/metadata/fgdc/xml/bcodmo_dataset_1006750_v1_fgdc.xml | https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_1006750_v1_iso19115.xml | https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_1006750_v1/index.htmlTable | https://osprey.bco-dmo.org/dataset/1006750
| https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_1006750_v1.rss | https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_1006750_v1&showErrors=false&email= | BCO-DMO | bcodmo_dataset_1006750_v1 |