Overview of Recent Work
Here's a link to my current CV. Here are some web pages and documents which summarize our work: Virtual RealityA 4D representation of some of our indiviual-based fish (pollock) model results for various years. The model is centered near Kodiak Island, AK. In the above frame Kodiak Island is on the right and Alaska is to the left; we are looking northeast into Shelikof Strait. These are animated VRML worlds which *should* run on most PC and Mac web browsers (if not try installing the Cortona Viewer). Fish are represented as spheres which move through time, with modeled seafloor bathymetry rendered as a 3D surface. Click on the above frame to open this world. Here also are some representative fish worlds (in black and white) for 1978 1987 1988 1991 1994 Also check out our animations
of salinity fields for these years, which highlight eddies in this
region.
These are short animated
gifs. We have experimented with other formats but these are *guaranteed*
to run on any web browser
Submitted/in review: Di Lorenzo, E., J. Fiechter, N. Schneider, P. J. S. Franks, S. J. Bograd, A. M. Moore, A. C. Thomas, W. Crawford. A. Peña and A. J. Hermann. 2009. Nutrient and Salinity Low-Frequency Variations in the central and eastern North Pacific. Geophysical Research Letters, submitted. Coyle, K. O, S. Hinckley, A. J. Hermann and E. Lessard. 2009. Northern Gulf of Alaska simulations of oceanic and shelf ecosystems: refining and tuning an NPZ model embedding in a general circulation model. Continental Shelf Research, submitted. Williams, W., T. Weingartner, and A. Hermann. 2009. Idealized 2-dimensional modeling of a coastal buoyancy front under downwelling-favourable wind-forcing with application to the Alaska Coastal Current. Journal of Physical Oceanography, in review. Accepted: Hinckley, S., J.M. Napp, and A.J. Hermann. 2009. Simulation of physically-mediated variability in prey resources for a larval fish - a 3-dimensional NPZ model Fisheries Oceanography, accepted. Brickman, D., B. Ådlandsvik, U. Thygesen, C. Parada, K. Rose, A. Hermann, and K. Edwards. 2009. Particle Tracking. In: North, E. W., A. Gallego, and P. Petitgas (eds.). Manual of Recommended Practices for Modelling Physical-Biological Interactions During Fish Early Life. ICES Cooperative Research Report, accepted. Published/in press: Hermann, A. J., E. N. Curchitser, Haidvogel, D. B. and E. L. Dobbins. 2009. A comparison of remote versus local influence of El Nino on the coastal circulation of the Northeast Pacific. Deep Sea Research II., in press. Hermann, A.J., S. Hinckley, E. L. Dobbins, D. B. Haidvogel, Bond, N. A., C. Mordy, N. Kachel and P. J. Stabeno. 2009. Quantifying cross-shelf and vertical nutrient flux in the Gulf of Alaska with a spatially nested, coupled biophysical model. Deep Sea Research II, in press. Dobbins, E. L., A. J. Hermann, P. J. Stabeno, N. A. Bond and R. C. Steed. 2009. Modeled transport of freshwater from a line-source in the coastal Gulf of Alaska. Deep Sea Research II, in press. Hinckley, S., K. O. Coyle, G. Gibson, A. J. Hermann, and E. L. Dobbins. 2009. A biophysical NPZ model with iron for the Gulf of Alaska: Reproducing the differences between an oceanic HNLC ecosystem and a classical northern temperate shelf ecosystem. Deep Sea Research II, in press. Hermann, A.J. and C. W. Moore. 2009 Visualization in fisheries oceanography: new approaches for the rapid exploration of coastal ecosystems. In: B.A. Megrey and E. Moksness (eds.), Computers in Fisheries Research, 2nd ed., DOI 10.1007/978-1-4020-8636-6_10, Springer Science and Business Media B.V. Haidvogel, D. B., H. Arango, W. P. Budgell, B. D. Cornuelle, E. Curchitser, E. Di Lorenzo, K. Fennel, W. R. Geyer, A. J. Hermann, L. Lanerolle, J. Levin, J. C. McWilliams, A. J. Miller, A. M. Moore,T. M. Powell, A. F. Shchepetkin, C. R. Sherwood, R. P. Signell, John C. Warner, J. Wilkin. 2008. Regional Ocean Forecasting in Terrain-following Coordinates: Model Formulation and Skill Assessment. J. Comput. Phys. 227: 3595-3624. Williams, W., T. Weingartner, and A. Hermann. 2007. Idealized Modeling of Seasonal Variation in the Alaska Coastal Current, J. Geophys. Res. 112, C07001, doi:10.1029/2005JC003285.
Stockhausen, W.T., and A.J. Hermann. 2007. Modeling larval dispersion of rockfish: A tool for marine reserve design? In: J. Heifetz, J. DiCosimo, A.J. Gharrett, M.S. Love, T. O'Connell, and R. Stanley (eds.), Biology, assessment, and management of North Pacific rockfishes. Alaska Sea Grant College Program, University of Alaska Fairbanks. AK-SG-07-01.
Curchitser, E. N., D. B. Haidvogel, A. J. Hermann, E. L. Dobbins and T. M. Powell. 2005. Multi-scale modeling of the North Pacific Ocean I: Assessment and analysis of simulated basin-scale variability (1996-2003). J. Geophys. Res., 110, C11021, doi:101029/2005JC002902.
Powell, T. M., C.V. W. Lewis, E. Curchitser, D. Haidvogel, A. Hermann, and E. Dobbins. 2005. Results from a three-dimensional, nested biological-physical model of the California Current System: Comparisons with Statistics from Satellite Imagery. J. Geophys. Res., 111, C07018, doi:10.1029/2004JC002506.
Stabeno, P. J., N. A. Bond, A. J. Hermann, C. W. Mordy and J. E. Overland. 2004. Meteorology and Oceanography of the Northern Gulf of Alaska. Prog. Oceanog. 24: 859-897.
Hermann,
A.J., D. B. Haidvogel, E. L. Dobbins, and P. J. Stabeno. 2002. Coupling
Global and Regional Circulation Models in the Coastal Gulf of Alaska
. Prog. Oceanog. 53: 335-367.
Hermann, A.J., P. J. Stabeno, D. B. Haidvogel,
D. L. Musgrave. 2002. A
regional tidal/subtidal circulation model of the southeastern Bering Sea:
Development, sensitivity analyses and hindcasting. Deep-Sea Res. II
(Topical Studies in Oceanography) 49: 5495-5967.
Hermann, A.J., S. Hinckley, B.A Megrey and J.M.
Napp. 2001. Applied
and theoretical considerations for constructing spatially explicit Individual-Based
Models of marine fish early life history which include multiple trophic
levels. ICES J. Mar. Sci. 58: 1030-1041.
Hinckley, S., Hermann, A. J., Meir, K. L.
and B. A. Megrey. 2001. The importance of spawning location and timing
to successful transport to nursery areas: a simulation modeling study of
Gulf of Alaska walleye pollock. ICES J. Mar. Sci. 58:1042-1052.
Hermann, A. J. and P. J. Stabeno. 1996. An
eddy resolving model of circulation on the western Gulf of Alaska shelf.
I. Model development and sensitivity analyses. J. Geophys. Res. 101:
1129-1149.
Stabeno. P. J. and A. J. Hermann. 1996. An
eddy resolving model of circulation on the western Gulf of Alaska shelf.
II. Comparison of results to oceanic observations. J. Geophys. Res.
101: 1151-1161.
Hermann, A. J., S. Hinckley, B. A. Megrey
and P. J. Stabeno. 1996. Interannual
variability of the early life history of walleye pollock near Shelikof
Strait, as inferred from a spatially explicit, individual-based model.Fish.
Oceanogr. 5 (Suppl. 1): 39-57.
Hinckley, S., A. J. Hermann and B. A. Megrey.
1996. Development
of a spatially explicit, individual-based model of marine fish early life
history. Mar. Ecol. Prog. Ser. 139: 47-68.
Stabeno, P. J., A. J. Hermann, N. A. Bond
and S. J. Bograd. 1995. Modeling
the possible impact of climate change on the survival of larval walleye
pollock (Theragra chalcogramma) in the Gulf of Alaska. Can. Spec. Pub.
Fish. Aquat. Sci. 121: 719-727.
Kemp, W. M., W. R. Boynton and A. J. Hermann.
1995. Simulation models of an estuarine macrophyte ecosystem. In: B. Patten
and S. Jorgensen, eds., Complex Ecology: The Part-Whole Relation in Ecosystems,
Prentice-Hall.
Hermann, A. J. and W. B. Owens. 1993. Energetics
of gravitational adjustment for mesoscale chimneys. Journal of Physical
Oceanography 23: 346-371.
Hermann, A. J. and H. M. Hsu. 1993. A
vertical coordinate mapping technique for semi-spectral primitive equation
models of oceanic circulation. Journal of Atmospheric and Oceanic Technology
10: 381-396.
Hermann, A. J., P. B. Rhines and E. R. Johnson.
1989. Nonlinear Rossby adjustment in a channel: beyond Kelvin waves. J.
Fluid Mech. 205:469 - 502.
Hermann, A. J., B. M. Hickey, M. L. Landry
and D. F. Winter. 1989. Coastal Upwelling Dynamics. In: B. M. Hickey and
M. R. Landry, eds., Coastal Oceanography of Washington and Oregon, Elsevier
Publishers.
snail mail address:
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Contents last updated
http://www.pmel.noaa.gov/~hermann