Permafrost Drilling and Soil-Temperature Measurements at Resolute, Cornwallis Island, Canada

Nature ◽  
1952 ◽  
Vol 170 (4330) ◽  
pp. 705-706 ◽  
Author(s):  
ANDREW THOMSON ◽  
P. C. BREMNER
1979 ◽  
Vol 101 (4) ◽  
pp. 225-231 ◽  
Author(s):  
S. W. Pearson

Extensive soil temperature measurements have been taken for more than two years in a field test designed to monitor the performance of thermal vertical support members used to support elevated sections of the trans-Alaska pipeline as it crosses marginal permafrost. Thermal aspects of the design are summarized and soil temperature data are presented which demonstrate the ability of the overall thermal vertical support member system to protect the surrounding permafrost.


Ecology ◽  
1923 ◽  
Vol 4 (4) ◽  
pp. 434-435
Author(s):  
J. W. Redway

Ecology ◽  
1963 ◽  
Vol 44 (1) ◽  
pp. 151-156 ◽  
Author(s):  
W. W. Jeffrey

1957 ◽  
Vol 49 (5) ◽  
pp. 276-276
Author(s):  
L. D. Bark ◽  
H. H. Laude

1986 ◽  
Vol 16 (3) ◽  
pp. 654-658 ◽  
Author(s):  
Don Minore

Light, moisture, and temperature measurements beneath sprout clumps were compared with similar measurements outside the clumps on eight clear-cuttings in southwestern Oregon. Light intensity was higher beneath madrone than beneath tanoak or chinkapin. Soil moisture was higher beneath the clumps and soil temperature was lower than outside them during the cool moist summer of 1983. Soil temperature remained lower beneath the clumps during the warm dry summer of 1985, but moisture conditions were similar beneath and outside the clumps after the prolonged 1985 drought.


2011 ◽  
Vol 5 (3) ◽  
pp. 1583-1625 ◽  
Author(s):  
S. Hachem ◽  
C. R. Duguay ◽  
M. Allard

Abstract. In Arctic and sub-Arctic regions, meteorological stations are scattered and poorly distributed geographically; they are mostly located along coastal areas and are often unreachable by road. Given that high-latitude regions are the ones most significantly affected by recent climate warming, there is a need to supplement existing meteorological station networks with spatially continuous measurements such as those obtained by spaceborne platforms. In particular, land surface (skin) temperature (LST) retrieved from satellite sensors offer the opportunity to utilize remote sensing technology to obtain a consistent coverage of a key parameter for climate, permafrost, and hydrological research. The Moderate Resolution Imaging Spectroradiometer (MODIS) sensor aboard the Terra and Aqua satellite platforms offers the potential to provide spatial estimates of near-surface temperature values. In this study, LST values from MODIS were compared to ground-based near-surface air and soil temperature measurements obtained at herbaceous and shrub tundra sites located in the continuous permafrost zone of northern Québec, Canada, and the North Slope of Alaska, USA. LST values were found to be better correlated with near-surface air temperature (1–2 m above the ground) than with soil temperature (3–5 cm below the ground) measurements. A comparison between mean daily air temperature from ground-based station measurements and mean daily MODIS LST, calculated from daytime and nighttime temperature values of both Terra and Aqua acquisitions, for all sites and all seasons pooled together reveals a high correlation between the two sets of measurements (R>0.93 and mean difference of −1.86 °C). Mean differences ranged between −0.51 °C and −5.13 °C due to the influence of surface heterogeneity within the MODIS 1 km2 grid cells at some sites. Overall, it is concluded that MODIS offers a great potential for monitoring surface temperature changes in high-latitude tundra regions and provides a promising source of input data for integration into spatially-distributed permafrost models.


2005 ◽  
Vol 44 (4) ◽  
pp. 546-550 ◽  
Author(s):  
Kun Yang ◽  
Toshio Koike

Abstract A scheme was proposed by Zhang et al. to estimate soil water content from soil temperature measurements by using an adaptive Kalman filter. Their scheme is based on the fact that soil heat capacity and thermal conductivity are a monotonic function of soil water content. However, thermal diffusivity, a more critical thermal parameter in such an estimation, is not a monotonic function of soil water content in most cases. This could result in multiple solutions in some cases when deriving soil water content from soil temperatures.


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