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Topic: Surface temperature inversion


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In the News (Thu 24 Dec 09)

  
  Frost - Wikipedia, the free encyclopedia
It is also affected by differences in absorptivity and specific heat of the ground which in the absence of wind greatly influences the temperature attained by the superincumbent air.
The formation of white frost on the indoor surface of window panes indicates low relative humidity of the indoor air, otherwise water would first condense in small droplets and then freeze into clear ice.
In the absence of a site nucleating the formation of ice crystals, the leaves remain in a supercooled liquid state, safely reaching temperatures of -4 °C to -12 °C. However, once frost forms, the leaf cells may be damaged by sharp ice crystals.
en.wikipedia.org /wiki/Frost   (462 words)

  
 Encyclopedia :: encyclopedia : Temperature extreme   (Site not responding. Last check: 2007-10-12)
Temperature extremes are the highest and lowest temperatures recorded in specific locales.
Additionally, only temperatures recorded four feet (1.2 metres) or higher above the ground, and in the shade, are admissible, as ground temperatures in many areas are much hotter than air temperatures.
Recorded temperature extremes are almost certainly not the highest and lowest climactic temperatures ever; weather records have only been kept for a few decades in some locales, and uninhabited locations are recorded rarely if ever.
www.hallencyclopedia.com /Temperature_extreme   (189 words)

  
 Climate Change and Greenhouse Gases
Worldwide temperature measurements, carefully screened for instrumental and measurement artifacts, such as effects of urbanization, have been used to estimate that global mean annual surface temperatures have increased between 0.3 and 0.6° C during the last 150 years [Hansen and Lebedeff, 1987; Jones et al., 1997; Nicholls et al., 1996].
Although temperature is usually the first variable considered in assessments of global climate change, it is important to consider other data that integrate the state of the climate system over space and time.
These include temperature proxy data (such as tree ring records), borehole temperature measurements in soil, permafrost, and ice sheets, and measurements of the mass balance of valley glaciers and ice caps.
www.agu.org /eos_elec/99148e.html   (7729 words)

  
 Environmental Sciences Research Centre
Global ground surface temperature and heat flux histories from geothermal measurements: Inferences from inversion of the global dataset.
Spatial patterns of surface temperature and surface heat flux for the last 200 years in the northern hemisphere inferred from underground temperature data.
Beltrami, H. Global Ground Surface Temperature and Heat Flux Histories from Geothermal Measurements: Inferences from Inversion of the Global Dataset, Global Warming and the Next Ice Age Conference co-sponsored by the American Meteorological Society and the Canadian Meteorological and Oceanographic Society.
esrc.stfx.ca /publicat.html   (4593 words)

  
 University of Helsinki - Department of Geography - Matti Seppälä
Surface abrasion of palsas by wind action in Finnish Lapland.
Surface characteristics affecting active layer formation in palsas, Finnish Lapland.
Surface temperature inversion at a palsa-pounu area in northernmost Finland.
www.helsinki.fi /geography/Matti_Seppala_eng.html   (2735 words)

  
 IASPEI Brochure
Determination of the appropriate friction law for fault slip and the factors affecting the distribution of slip or moment release on the rupture surface are other subjects of active investigation.
Tomography, the systematic inversion of seismic travel-time data for internal structure, uses an impressive array of techniques to create spectacular images of the Earth's interior.
In the heat flow studies, IHFC is particularly interested in one- and two-dimensional geothermal modeling and the structure of the crust and lithosphere.
www.iaspei.org /brochure/brochure.html   (8803 words)

  
 Internet Public Library: Science & Technology
Branches of science related the Earth, its surface, and its atmosphere.
It gives conversion factors for commonly needed values -- area, length, pressure, force, and volume -- as well as gage standards for things such as sheet metal, wire, and pipes and measures of hardness, stress, and temperature.
It provides an overview of the concept of regional inversion, the roles of tangible and intangible infrastructure, innovative capacity, educational access, and related aspects.
www.ipl.org /div/subject/browse/sci00.00.00   (3135 words)

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