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Full-Text Articles in Oceanography and Atmospheric Sciences and Meteorology
Collaborative Research: Microparticle/Tephra Analysis Of The Wais Divide Ice Core, Karl J. Kreutz, Andrei V. Kurbatov, Mark Wells, Paul Andrew Mayewski
Collaborative Research: Microparticle/Tephra Analysis Of The Wais Divide Ice Core, Karl J. Kreutz, Andrei V. Kurbatov, Mark Wells, Paul Andrew Mayewski
University of Maine Office of Research Administration: Grant Reports
This award supports a project to perform continuous microparticle concentration and size distribution measurements (using coulter counter and state-of-the-art laser detector methods), analysis of biologically relevant trace elements associated with microparticles (Fe, Zn, Co, Cd, Cu), and tephra measurements on the WAIS Divide ice core. This initial three-year project includes analysis of ice core spanning the instrumental (~1850-present) to mid- Holocene (~5000 years BP) period, with sample resolution ranging from subannual to decadal. The intellectual merit of the project is that it will help in establishing the relationships among climate, atmospheric aerosols from terrestrial and volcanic sources, ocean biogeochemistry, and …
Collaborative Research: Asian Ice Core Array (Aica)--Reconstruction Of Past Physical And Chemical Climate Over Asia, Paul Mayewski, Karl J. Kreutz, Andrei V. Kurbatov
Collaborative Research: Asian Ice Core Array (Aica)--Reconstruction Of Past Physical And Chemical Climate Over Asia, Paul Mayewski, Karl J. Kreutz, Andrei V. Kurbatov
University of Maine Office of Research Administration: Grant Reports
Funding is provided to help the researchers build on success using ice cores for understanding past physical and chemical climate change from Antarctica, Arctic, North Pacific and Asia by analyzing and interpreting a new array of Asian ice cores. The researchers plan to use five existing ice cores and collect one new ice core to enhance the reconstruction of environmental conditions over Asia.
The primary research questions for the Asian Ice Core Array (AICA) research include:
(1) Asian climate variability - How do major Asian circulation features (i.e., Asian monsoon, Westerlies, polar air masses, Siberian and Tibetan Highs) vary on …
Collaborative Research: Molluscan Radiocarbon As A Proxy For Upwelling In Holocene Peru, Daniel H. Sandweiss
Collaborative Research: Molluscan Radiocarbon As A Proxy For Upwelling In Holocene Peru, Daniel H. Sandweiss
University of Maine Office of Research Administration: Grant Reports
Abstract: Under this award the PI will measure 14C in independently dated Peruvian mollusks from multiple time intervals to define long-term trends in upwelling variation. Upwelling is a defining factor of El Nino-southern oscillation (ENSO) in the eastern Pacific, particularly along the coast of Peru. Historical records of this phenomenon are limited and older proxy records in this region are few. The proposal will exploit the ventilation age difference between equatorial surface and deeper upwelled waters. The detection of El Nino events will be made by screening for shell increment alteration and by sequential d18O analysis. The simultaneous excursions in …