CHEMICAL OCEANOGRAPHY AT THE UNIVERSITY OF WASHINTON

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Presentation transcript:

CHEMICAL OCEANOGRAPHY AT THE UNIVERSITY OF WASHINTON Widely diverse research projects & study locations Highly Interdisciplinary Broadly Separated into Organic & Inorganic Chemistry Main Themes of Research: Carbon Cycle Science Climate & Paleoclimate Near Shore REDOX Processes Hydrothermal Processes Tracers of Ocean Mixing & Ventilation

Devol Lab - Marine N Cycle Alan Devol – Marine N Cycle Major Limiting Nutrient for productivity Climate implications Budget is controversial Hypoxia in Puget Sound Denitrification and hypoxia off Oregon NO3- Denitrification and Anammox in Arctic sediments Denitrification and Anammox in Bering Sea sediments Denitrification Nitrification Anammox N2 NH3 Denitrification and Anammox in oxygen deficient water columns in Arabian Sea Denitrification and Anammox in oxygen deficient water columns off South America Devol Lab - Marine N Cycle

The study location near Hawaii Steve Emerson: O2 Cycles in the Surface Ocean are a measure of Biological Production Rates X ocean mooring TIME DEPENDINCE Measurements of O2 and N2 at 10 meters on the above mooring give Supersaturation results below The study location near Hawaii Sea Glider SPACE DEPENDENCE Remote O2 measurements on gliders give spatial patterns indicted by supersaturation to the right, where the mooring location is in the center

Dick Feely-Ocean Acidification PMEL-NOAA Richard Feeley,Chris Sabine: CO2 and ocean chemistry …..ocean acidification Joe Resing: Trace metals in the ocean CO2 + H2O Û H2CO3 Û H+ + HCO-3 - Û + 3 2 2HCO O H CO Wolf-Gladrow et al., 1999 pH CO32- CO2(aq) Dick Feely-Ocean Acidification

Anitra Ingalls - Carbon cycle CO2 Land Biosphere Mixed-Layer DIC Deep Ocean DIC Sediments Photoautotrophs Heterotrophs DOC Mixed-Layer Particulate Organic Detritus Chemo- autotrophs Biomarkers & their 14C ages are tracers of the C Cycle

Rick Keil Marine Organic Geochemistry The study of organic compounds, their fate & impacts on the global carbon cycle. impact of redox conditions on carbon cycling proteomics & protein preservation link between organic C degradation & the marine N cycle source & fate of pollutants in coastal waters In this image of the global carbon cycle, Organic Geochemists study only the orange arrows.

Marv Lilley: Hydrothermal Studies Endeavour, Juan de Fuca Ridge Rapid Changes Following an Eruption Massive Production of Particulate Sulfur after an Eruption Instruments for High Temp Work

Jim Murray: C, N, & Fe Cycles N Cycle in the Black Sea Oxygen & H2S Nitrogen Species N2/Ar ratio

Paul Quay: C Cycle Carbon Isotopes of Dissolved Inorganic Carbon in the Ocean Trace Anthropogenic CO2 Invasion Into the Ocean

Carbon cycling in large rivers Jeff Richey: C Cycle Carbon cycling in large rivers

Julian Sachs - Paleoclimate Clipperton Atoll Palau Kiribati Galapagos Panama Basin Molecular & isotopic reconstructions of tropical rainfall 11

Mark Warner - Tracers of Ocean Mixing Tracking the invasion of man-made CFCs into the ocean to quantify mixing rates & patterns.