PI: Jeremy Mathis; Institution: University of Alaska-Fairbanks
Title: Observation and Prediction of Ocean Acidification in the Western Arctic Ocean - Impacts of Physical and Biogeochemical Processes on Carbonate Mineral States
Summary: The investigators will assess ocean acidification in the western Arctic Ocean, particularly the key physical, chemical, and biogeochemical processes influencing the saturation of aragonite and calcite. The study will develop algorithms for determining saturation state, and set the stage for assessing the potential effects of ocean acidification on benthic and pelagic communities.
PI: Taro Takahashi; Institution: Columbia University, Lamont Doherty Earth Observatory
Title: Climatological Mean Distribution of pH in Surface Waters in the Unified pH Scale and Mean Rate of changes in Selected Areas
Summary: Researchers will construct the global distribution of surface ocean pH in a single unified scale based on observations of pCO2 (partial pressure of carbon dioxide), total alkalinity and total carbon dioxide ion concentration in surface waters. Their efforts will allow for the development of a global ocean pH and carbonate concentration baseline that is anchored to international carbon dioxide standards common to these atmospheric and oceanic carbon dioxide measurements.
PI: Lisa Levin; Institution: University of California-San Diego Scripps Institution of Oceanography
Title: Development of geochemical proxies to evaluate larval pH-exposure history
Summary: This project is a partnership among connectivity ecology, metal isotope geochemistry, and paleoclimatology experts to identify new proxies for ocean acidification that can be used to assess pH exposures in living organisms--and potentially to interpret the geologic record. The investigators will determine if the isotopic composition of larval calcium
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| Contact: Cheryl Dybas cdybas@nsf.gov 703-292-7734 National Science Foundation Source:Eurekalert |