Light rings in subarctic conifers as a dendrochronological tool
About two-thirds of the 65 light-ring years coincide with years (or triads) of major volcanic eruptions. The climatic conditions (low temperature) occurring at the end of the growing season in part induced by the climatic effect of volcanism, seem
Weathering of granite in Antarctica : I. Light penetration into rock and implications for rock weathering and endolithic communities
An attempt was made to monitor the amount of light penetrating the outer 2 mm of coarse granite under Antarctic summer conditions and to evaluate the thermal impact of this. It was found that the amount of light penetration at this site exceeded
information was generated to provide the first assessment of the range of thermal responses due to light transmissive minerals in rock.
Relationship of temperature and light ring formation at subarctic treeline and implications for climate reconstruction
During the past 8 centuries, light rings (LRs) have occasionally formed in black spruce at treeline near Bush Lake, northern Quebec. New analyses of climate data compiled during the period of overlapping tree-ring and instrumental records show
Amérique du Nord ; Canada ; Centre-ville ; Développement urbain ; Equipement ; Equipement urbain ; Etats-Unis ; Géographie humaine ; Light rail transit ; Moyen de transport urbain ; Tramway ; Transport public ; Transport urbain ; Utilisation du sol
a measuring device using low-cost mass-produced instruments that are mainly used for FA (factory automation). Among the methods that have been proposed, the optical method (including the transmitted light and scattered light methods) is the easiest to handle
using general-purpose sensors. First, the transmitted light and the scattered light methods carried out using FA instruments are discussed. Second, the examination of the sensors by using an experimental channel is described.