Circulation in the Chesapeake Bay entrance region: Estuary-shelf interaction

Current meters and temperature-salinity recorders confirm the assumption that the upper layers of the continental shelf waters off Chesapeake Bay can be banded in summer, such that the coastal boundary layer (consisting of the Bay outflow) and the outer shelf flow southward while the inner shelf flows to the north, driven by the prevailing southerly winds. These measurements show that the estuary itself may also be banded in its lower reaches such that the inflow is confined primarily to the deep channel, while the upper layer outflow is split into two flow maxima on either side of this channel

Volume dedicated to Raymond Braislin Montgomery on occasion of his sixty-fifth birthday; Bibliography of Raymond Braislin Montgomery; Biographical Notes: Raymond Braislin Montgomery

If a scientist\u27s achievement were gauged solely on the strength of his formal research, Raymond Braislin Montgomery\u27s bibliography would justify the high regard in which his professional friends hold him. But this esteem is held in large part for a contribution to physical oceanography that cannot be traced via a list of writings or a list of honors or positions. It is for Montgonery\u27s role as teacher, scholar and critic

Pre-Trial Publicity

One of the most controversial problems in the criminal law field during the 1960\u27s has centered around the apparent contradiction between detailed reporting of events about which there is pending criminal litigation and the sixth amendment right of the criminally accused to a public trial by an impartial jury. The impartiality of our criminal process is one of the most highly regarded of American legal traditions. The difficulty in maintaining this tradition, in a society permeated with every form of mass information media, of catering to a curious public is one of the vital issues of our time. This comment is an attempt to look at the overall problem and to study in depth the various curative proposals which have been offered

Generation of internal solitary waves by lateral circulation in a stratified estuary

Author Posting. © American Meteorological Society, 2017. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 47 (2017): 1789-1797, doi:10.1175/JPO-D-16-0240.1.Internal solitary waves are commonly observed in the coastal ocean where they are known to contribute to mass transport and turbulent mixing. While these waves are often generated by cross-isobath barotropic tidal currents, novel observations are presented suggesting that internal solitary waves result from along-isobath tidal flows over channel-shoal bathymetry. Mooring and ship-based velocity, temperature, and salinity data were collected over a cross-channel section in a stratified estuary. The data show that Ekman forcing on along-channel tidal currents drives lateral circulation, which interacts with the stratified water over the deep channel to generate a supercritical mode-2 internal lee wave. This lee wave propagates onto the shallow shoal and evolves into a group of internal solitary waves of elevation due to nonlinear steepening. These observations highlight the potential importance of three-dimensionality on the conversion of tidal flow to internal waves in the rotating ocean.National Science Foundation (OCE-1061609)2018-01-0

Spring 1972 Conference Issue

For the Homeowner by Alfred W. Boicourt (page 3) Slow-Release Fertilizer for Lawns by Robert W. Schery (4) Sanity in Research and Evaluation of Environmental Health by H.E. Stokinger (7) Turf Conference (10) Recent Developments with Dursban Insecticide for Chinch Bug Control by W.O. Miller (17

Fall 1980

Chronic Organo-Phosphate Poisoning (page 3) Perennials (7) Topdressing (10) Winter Problems of Shade Trees (15) Fall Color (18

Spring 1979 Conference Issue

Principles of Turfgrass Weed Control Annual Grasses (page 3) Bean-Shape Islands (7) High Protein Food From Grass (8) Forty-Eighth Annual Turf Conference and Third Industrial Show Program (10) Dutch Elm Disease: Perspectives After 60 Years (13) Toro Irrigation Design Seminar (14) Ideas: New and Old (15) More Pesticide Exams (16) Disposal of Pesticides in Massachusetts (18) Moth Controls Nutsedge Weeds (19) New Pesticide Bill (20

Hurricane-induced destratification and restratification in a partially-mixed estuary

Hurricane Isabel made landfall at the Outer Banks of North Carolina and moved past Chesapeake Bay on 18 –19 September 2003. The baroclinic response of this partially-mixed estuary to the passage of Isabel is investigated using the output from a regional atmosphere-ocean model. The hurricane-forced winds caused gradual deepening of the surface mixed layer, followed by rapid destratification in the water-column. The mixed-layer deepening appears to be driven by velocity shear and can be interpreted by a gradient Richardson number. Although strong winds caused complete mixing locally, a large longitudinal salinity gradient of about 10-4 psu m-1 persisted between the estuary\u27s head and mouth. After passage of the storm, the horizontal baroclinic pressure gradient drove restratification and a two-layer circulation in the estuary. The averaged buoyancy frequency increased linearly with time during an initial stage, and reached about 0.03 s-1 one day after the destratification. The model results are in good agreement with the theoretical prediction based on gravitational adjustment. Subsequently, turbulent diffusion works against the longitudinal advection to produce quasi-steady salinity distribution