Articles
Optical Proxies for Terrestrial Dissolved Organic Matter in Estuaries and Coastal Waters
Dissolved organic matter (DOM) absorbance and fluorescence were used as optical proxies to track terrestrial DOM fluxes through estuaries and coastal waters by comparing models developed for several coastal ecosystems. Key to using these optical properties is validating...
read moreMedically-Derived Iodine-131 as a Tool for Investigating the Fate of Wastewater Nitrogen in Aquatic Environments
Iodine-131 (t1/2 = 8.04 d) is widely used in nuclear medicine, primarily to treat hyperthyroidism and thyroid cancer, with an annual average of 188 treatments per million people in developed countries. The administered dose of Iodine-131 (∼0.1−1 and 4−8 Gbq for...
read moreDeep Sediment-Sourced Methane Contribution to Shallow Sediment Organic Carbon: Atwater Valley, Texas-Louisiana Shelf, Gulf of Mexico
Sediment organic carbon composition and provenance have been extensively studied in the Gulf of Mexico. Generally, inputs of terrestrially-derived organic carbon dominate near shore sediments and decrease with distance offshore where water column phytoplankton...
read morePaleo-Fluid Expulsion Influencing Contouritic Drift Formation on the Chatham Rise, New Zealand
The Chatham Rise is located offshore of New Zealand’s South Island. Vast areas of the Chatham Rise are covered in circular to elliptical seafloor depressions that appear to be forming through a bathymetrically controlled mechanism, as seafloor depressions 2–5 km in...
read moreContribution of Vertical Methane Flux to Shallow Sediment Carbon Pools Across Porangahau Ridge, New Zealand
The majority of coastal sediment carbon cycling studies have focused on contributions from autochthonous photosynthetic marine and allocthonous terrigenous inputs. However, hydrocarbons produced within deep sediment through thermochemical and microbiological...
read moreSpatial Variation in Shallow Sediment Methane Sources and Cycling on the Alaskan Beaufort Sea Shelf/Slope
An expedition conducted on the USCG Polar Sea during August of 2009 explored the Alaskan Shelf of the Beaufort Sea to address the sediment methane sources, the potential for contribution to climate change and possible locations for energy exploration. MITAS, lead by...
read moreLNG Environmental Assessment and Monitoring
There is a strong national and financial rational for development of liquid natural gas (LNG) in China. Transition to LNG, moving away from burning coal and oil, has potential to result in significantly less environmental impact. Success on undertaking a $40 billion...
read moreCoastal China Methane Hydrate Drill Site Assessment
For Chinese exploration of potential methane hydrate loading in their coastal region Strategic Carbon (SC) LLC will provide methane hydrate site assessment prior to deep hydrate well drilling and logging. This activity optimizes drill site selection and provides...
read moreChina Coastal Environmental Assessment Related to Hydrate Mining
Future plans for Chinese sediment methane hydrate and petroleum mining, as well as carbon dioxide sequestration, require credible environmental assessments to confirm that anthropogenic compounds released to shallow sediment and the water column during mining will not...
read moreRadiocarbon-Depleted CO2 Evidence at North Island
In The Royal Society of Chemistry, 2013 By T. Boyd Carbon dioxide radiocarbon analysis has proved extremely useful in demonstrating on-site fossil fuel-derived contaminant remediation to a non-toxic end-product (CO2). At the North Island Naval Air Station in San...
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