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ScholarsArchive at Oregon State University
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The importance of leads, sea ice motion, and frazil ice on the wintertime ocean
Boundary layer was examined by using a large-eddy simulation turbulence model coupled to a
thermodynamic slab ice model. Coupling was achieved through exchange...
2001-02-15 (iso8601)
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High-resolution turbulence simulations are used to examine the importance of melt
pond geometry in setting pond growth rates and albedo. Modeling the circulation of
water in melt ponds using large-eddy simulation shows that both convective and...
2007-08-25 (iso8601)
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Ice-ocean heat exchange in polar leads was examined using a large-eddy simulation
model coupled to a slab ice model. Simulations were performed using an idealized square
domain for a range of lead sizes, surface wind stress (0.05–0.1 N/m²), and...
2005-05-28 (iso8601)
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A melt pond model is presented that predicts pond size and depth changes, given an
initial ice thickness field and representative surface fluxes. The model is based on the
assumption that as sea ice melts, fresh water builds up in the ice pore...
2009-12-18 (iso8601)
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The effects of ice keels on the upper ocean are examined using a combination of
turbulence measurements and output from a large-eddy simulation (LES) model. Two
cases are examined, one during the winter when the under-ice boundary layer is...
2003-12-04 (iso8601)
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Although there is increasing evidence that fluids may play a significant
role in the earthquake rupture process, direct observation of fluids in active fault
zones remains difficult. Since the presence of an electrically conducting fluid, such
as...
1999-01-10 (iso8601)
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Analysis of profiles measured over irrigated cotton in the Sudan Gezira showed that the crop boundary
layer remained stable throughout most of the day. The shape of wind profiles measured within the canopy
suggested that momentum was absorbed...
1977 (iso8601)
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The construction of a directional radiometer for measuring longwave radiation from the atmosphere is
described. The instrument had a filter of black polyethylene to exclude solar radiation, and the detector was
a thermopile. By analysis of the...
1978 (iso8601)
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On cloudless days in summer, longwave irradiance was measured with a radiometer and was calculated
from a radiation chart using records from radiosondes released at regular intervals. The results show that
the chart underestimated the longwave...
1978 (iso8601)
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To determine how epiphytes affect the canopy hydrology of old-growth Douglas-fir (Pseudotsuga menziesii
(Mirb.) Franco) forests, we measured rainfall interception by individual branches and an entire stand from March 2003
to May 2004....
2006 (iso8601)
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The diffuse irradiance of slopes relative to the diffuse irradiance of a horizontal surface is calculated by
integrating the mean radiance distributions of cloudless skies in Britain for a wide range of solar elevations,
azimuths and slope angles....
1979 (iso8601)
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The angular distribution of diffuse radiation was measured from May 1976 to May 1977 with a set of
purpose-built actinometers. Radiance distributions for 98 overcast hours were fitted well by an expression
similar to the conventional function for...
1980 (iso8601)
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When a shade ring is used to shield a pyranometer from direct solar radiation, a correction to the
measured diffuse radiation is necessary to account for diffuse radiation intercepted by the ring. A general
analysis is developed to relate...
1980 (iso8601)
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The origin of the Pacific Decadal Oscillation (PDO),
the leading mode of sea surface temperature variability for
the North Pacific, is a matter of considerable debate. One
paradigm views the PDO as an independent mode centered
in the North...
2009 (iso8601)
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Mosquitoes and mosquitoborne disease transmission
are sensitive to hydrologic variability. If local hydrologic
conditions can be monitored or modeled at the scales at
which these conditions affect the population dynamics of
vector mosquitoes and...
2005-09 (iso8601)
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The frequency of moderate to heavy rainfall events is projected to change in response to global warming. Here we show that
these hydrologic changes may have a profound effect on mosquito population dynamics and rates of mosquito-borne disease...
2007-03 (iso8601)
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