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Personal profile

Research Interests

My research focuses on water, sediments, and microbiota, with particular emphasis on the basic processes that control interfacial dynamics in aquatic systems and the coupling of physical transport processes with biological and biogeochemical processes.  I seek to define critical structure-transport-transformation relationships in dynamic environments such as rivers and surface-attached microbial communities (biofilms).  My work is highly collaborative and encompasses fluid mechanics, particle transport and morphodynamics, aquatic chemistry, and microbiology.  Important applications include benthic microbial ecology, nutrient and carbon cycling, contaminant transport and water quality, ecosystem degradation and restoration, waterborne disease transmission, and control of biofilms in human infection and engineered water systems.

Education/Academic qualification

Environmental Engineering and Science, Minor in Geology, PhD, California Institute of Technology

… → 1997

Environmental Engineering and Science, MS, California Institute of Technology

… → 1992

Mechanical Engineering, with minor in History, BS, Washington University St. Louis

… → 1991

Fingerprint Fingerprint is based on mining the text of the experts' scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

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solute Earth & Environmental Sciences
biofilm Earth & Environmental Sciences
sediment Earth & Environmental Sciences
colloid Earth & Environmental Sciences
bedform Earth & Environmental Sciences
hyporheic zone Earth & Environmental Sciences
solute transport Earth & Environmental Sciences
hydrodynamics Earth & Environmental Sciences

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Grants 2003 2021

vulnerability
infrastructure
weather
flooding
prediction
infrastructure
weather
flooding
vulnerability
prediction
river flow
fluvial deposit
climate
habitat
suspended sediment
Geometry
Flow of fluids
Numerical methods
Derivatives
Fluids

Research Output 1995 2019

Effects of resuspension on the mobility and chemical speciation of zinc in contaminated sediments

Xie, M., Alsina, M. A., Yuen, J., Packman, A. & Gaillard, J-F., Feb 15 2019, In : Journal of Hazardous Materials. 364, p. 300-308 9 p.

Research output: Contribution to journalArticle

Chemical speciation
speciation (chemistry)
resuspension
Zinc
Sediments

A multiscale statistical method to identify potential areas of hyporheic exchange for river restoration planning

Magliozzi, C., Coro, G., Grabowski, R. C., Packman, A. & Krause, S., Jan 1 2018, (Accepted/In press) In : Environmental Modelling and Software.

Research output: Contribution to journalArticle

hyporheic zone
Restoration
Statistical methods
Rivers
Planning
1 Citations

Comparison of biofilm cell quantification methods for drinking water distribution systems

Waller, S. A., Packman, A. & Hausner, M., Jan 1 2018, In : Journal of Microbiological Methods. 144, p. 8-21 14 p.

Research output: Contribution to journalArticle

Biofilms
Drinking Water
Confocal Microscopy
Water Quality
Flow Cytometry

Cryptosporidium oocyst persistence in agricultural streams -a mobile-immobile model framework assessment

Drummond, J. D., Boano, F., Atwill, E. R., Li, X., Harter, T. & Packman, A., Dec 1 2018, In : Scientific Reports. 8, 1, 4603.

Research output: Contribution to journalArticle

Cryptosporidium
Oocysts
Rivers
Immobilization
Halogenation
1 Citations

Interactions Between Suspended Kaolinite Deposition and Hyporheic Exchange Flux Under Losing and Gaining Flow Conditions

Fox, A., Packman, A., Boano, F., Phillips, C. B. & Arnon, S., May 16 2018, In : Geophysical Research Letters. 45, 9, p. 4077-4085 9 p.

Research output: Contribution to journalArticle

kaolinite
clays
plugging
clay
beds