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Organic/inorganic chemistry, analytical chemistry, electrochemistry, molecular properties, chemical reactions
2,033 datasets
Continuous underway measurements of dissolved gases (CO2, O2, Argon, Nitrogen) in sea surface water at 7 meters depth. Data was collected via Electron Impact Mass Spectrometry on the CEAMARC cruise of the Aurora Australis during the 2007-2008 summer season. The dataset is organized into daily files with columns for cycle, date, time, relative time, and ion mass readings.
Hydrochemical data from the Lena River mouth area, collected by The State Service of Supervision between 1980 and 2007. The data shows spatial and temporal changes in pollutant and nutrient compound concentrations across three key locations: Kusur, Habarova, and Tiksi. The analysis indicates the formation of an anthropogenically modified natural background where concentrations exceed established limits.
September 1999 to December 2006 data contains continuous five-minute averaged measurements of particle-bound polycyclic aromatic compounds (PAC) from a Photoelectric Aerosol Sensor monitor. The data was collected at the Fresno EPA Supersite to characterize particulate matter. It was produced by the NARSTO partnership and archived by the LARC_ASDC organization.
Gases in Firn Air and Shallow Ice at the Proposed WAIS Drilling Site contains trace gas measurements from 57 ice core samples from the West Antarctic Ice Sheet Divide A core. The dataset includes mixing ratios for nine trace gas species: ethane, propane, n-butane, carbonyl sulfide, carbon disulfide, methyl chloride, methyl bromide, acetonitrile, and chlorofluorocarbon-12. Analyses were conducted by the University of California, Irvine on samples dry-drilled during the 2005-2006 field season.
Southern Ocean wildlife, including Adelie penguins, South Polar skua, and elephant seals, were sampled for perfluorinated chemicals (PFCs) like PFOS and PFOA. The dataset contains concentration measurements from blood and egg samples collected between 1995 and 2005. The research was conducted by the organization SCIOPS.
Oceanographic data from the Ross Sea, Antarctica, includes concentrations and rates for dimethylsulfide (DMS), dimethylsulfoniopropionate (DMSP), and dimethylsulfoxide (DMSO). The dataset was collected during two research cruises aboard the R/V Nathaniel B. Palmer in 2004-2005. It is provided by the organization SCIOPS.
Experimental data on UV-B absorbing compounds in embryos, larvae, and adults of the Antarctic sea urchin Sterechinus neumayeri. The dataset likely contains quantified concentrations of mycosporine-like amino acids (MAAs) and measurements of cyclobutane pyrimidine dimer formation from laboratory and in situ exposures. The data was collected by SCIOPS and last updated in November 2005.
A 2005 collection by SCIOPS details rare pentasil zeolite minerals discovered at Mt. Adamson in Northern Victoria Land. It includes structural, chemical, and physical characterizations of five minerals, including three newly identified crystalline phases. The dataset supports research into natural zeolites for industrial applications.
Over 250 years of surface underway observations for DELTA CARBON-14, collected from 1751-01-01 to 2004-12-31 in the Arabian Sea, Bali Sea, and other Pacific regions. The dataset was compiled by researchers from Australian National University, Harvard University, and other institutions as part of the Surface Water Radiocarbon from Coral Reefs project. It contains chemical data measured using instruments including a Carbon dioxide (CO2) gas analyzer.
Data from the 2003/2004 Antarctic summer season assesses UV-B radiation effects on native flora. The dataset contains measurements of DNA damage, UV-absorbing pigments, photosynthetic pigments, chlorophyll fluorescence, and leaf temperature for five plant species. It was collected by the Australian Antarctic Data Centre under ASAC Project 1310.
Measurements from 3,795 co-registered ice samples collected from a horizontal trench in the Mt. Moulton Blue Ice Area, Antarctica. The data set contains analyses of soluble major anions via Ion Chromatography and trace elements via inductively coupled plasma sector field mass spectrometry. It was published by the organization AMD_USAPDC and last updated in January 2004.
Concentrations of seven major ions (Cl-, NO3-, SO42-, Na+, K+, Mg2+, Ca2+) were measured in melting snow and water samples from streams and lakes in northern Victoria Land, Antarctica. Data collection was conducted by the organization SCIOPS, with the dataset last updated in February 2002. The study includes comparisons with data from twelve years prior to assess long-term changes.
Three years of data detail the production rates of 7Be, 10Be, 26Al, and 36Cl from water samples exposed to cosmic rays at Antarctic sites. The study, conducted by SCIOPS, involved extracting nuclides from 100-liter water containers for measurement via gamma counting and accelerator mass spectrometry. Data collection concluded around the year 2000.