Miller, William (Bill): University of Georgia (Project Lead)
Project Funding:
2006 - 2009
NRA: 2005 NASA: North American Carbon Program
Funded by NASA
Abstract:
This project, part of the North American Carbon Project, has as a primary goal to gather data to quantify the spatial and temporal variability of the chemical efficiency for photoproduction of CO2, CO, and biologically labile products (BLPs) used in microbial respiration in coastal waters. These products represent the total conversion of DOC to gaseous products by photochemistry. The study was designed to focus on the South Atlantic Bight (SAB) and expand as possible to North American coastal waters. After determination of new laboratory derived photochemical efficiency data, we will combine these spectra with our UV-optical satellite algorithms (SeaUV and SeaUVc) for application to remote sensing ocean color data from the SAB and North American coastal waters to generate UV optical profiles that drive photochemical production models. The final objective is to provide large scale estimates of the role of photochemistry in the oxidation of DOC and quantify the photochemically dependent production of CO2 and CO in the coastal ocean for incorporation into larger continental models.
Publications:
Cao, F., Fichot, C. G., Hooker, S. B., Miller, W. L. 2014. Improved algorithms for accurate retrieval of UV/visible diffuse attenuation coefficients in optically complex, inshore waters. Remote Sensing of Environment. 144, 11-27. DOI: 10.1016/j.rse.2014.01.003
Cao, F., Miller, W. L. 2015. A new algorithm to retrieve chromophoric dissolved organic matter (CDOM) absorption spectra in the UV from ocean color. Journal of Geophysical Research: Oceans. 120(1), 496-516. DOI: 10.1002/2014JC010241
Powers, L. C., Miller, W. L. 2014. Blending remote sensing data products to estimate photochemical production of hydrogen peroxide and superoxide in the surface ocean. Environ. Sci.: Processes Impacts. 16(4), 792-806. DOI: 10.1039/c3em00617d
Reader, H. E., Miller, W. L. 2011. Effect of estimations of ultraviolet absorption spectra of chromophoric dissolved organic matter on the uncertainty of photochemical production calculations. Journal of Geophysical Research. 116(C8). DOI: 10.1029/2010JC006823
Reader, H. E., Miller, W. L. 2014. The efficiency and spectral photon dose dependence of photochemically induced changes to the bioavailability of dissolved organic carbon. Limnology and Oceanography. 59(1), 182-194. DOI: 10.4319/lo.2014.59.1.0182
2008 NASA Carbon Cycle & Ecosystems Joint Science Workshop Posters
- CDOM during the Gulf of Mexico - East Coast Carbon (GOMECC) Cruise: Using Spectra for Remote Photochemical Estimates
-- (Heather E. Reader, William L. Miller, Joe Salisbury, Jennifer St. Louis, Amanda Plagge)
[abstract]
More details may be found in the following project profile(s):
