Prospective teachers enter teacher education programs with previously
formed conceptions of geometry and its teaching. These conceptions help
them make sense of new information about teaching, their roles as teachers,
and their translation of mathematics into learning activities. The purpose of
this study was to investigate the relationships among preservice...
A multidisciplinary oceanographic research program was carried out by US and Canadian investigators in the spring of 1995 in the Canadian Arctic, near Lowther Island in Barrow Strait. The program, referred to here as Resolute 95 (or Res95), had a variety of objectives, including detailed examination of the mechanisms responsible...
Antarctic Ice Sheet mass balance and, hence, sea level change is affected by the floating extensions of outlet glaciers and ice streams that take up about 44% of the coastline (Drewry et al., 1982) and are referred to as "ice shelves". Ice sheet mass loss accelerates when these ice shelves...
The application of a generalized inverse approach for assimilating vessel-mounted acoustic Doppler current profiler (VM-ADCP) data into numerical solutions of barotropic tides is described. The derived estimates of tidal currents can be used to detide the VM-ADCP data and expose underlying mean circulation. The methodology is illustrated with data assimilation...
The upward flux of heat from the subsurface core of Warm Deep Water
(WDW) to the perennially ice-covered sea surface over the continental slope in the
western Weddell Sea is estimated using data obtained during February-June 1992
from a drifting ice station. Through the permanent pycnocline the diapycnal heat
flux...
An error in the calculation of the baroclinic pressure gradient term in the Princeton Ocean Model (POM) was identified while modeling the M₂ tidal current near its critical latitude in the southern Weddell Sea. The error arises from the present calculation of density, which involves the subtraction of a background...
The Coordinated Eastern Arctic Experiment (CEAREX) was a multi-platform geophysical study covering the period from winter 1988 to spring 1989 in the vicinity of the Yermak Plateau and Fram Strait. The Oceanography ("0") Camp component of CEAREX was designed to study the physical oceanographic conditions from the deep Nansen Basin...
Hydrographic and velocity profiles were made through a small baroclinic cyclonic eddy during the Arctic Internal Wave Experiment in the Canada Basin in April 1985. The maximum measured azimuthal velocity was 0.38 m s⁻¹ at a depth of 115 m, with velocities decaying to near zero at 30 and 270...