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UID:20250902T084302EDT-76349ESkGk@132.216.98.100
DTSTAMP:20250902T124302Z
DESCRIPTION:Dr. Julie Theriault joins us from le département des sciences d
 e la Terre et de l’atmosphère at UQAM for a seminar titled Factors impacti
 ng the catch efficiency of snow gauges. Refreshments will be served.\n\nAb
 stract\n\nAccurate measurement of snowfall can be critical for a wide vari
 ety of studies including snowpack variability\, hydrology and regional cli
 mate modelling. Systematic errors in measurements of snow are often observ
 ed due to the gauge-shield geometry. It is well documented that the catch 
 efficiency of a gauge-shield configuration decreases with increasing wind 
 speed\, with a lot of scatter for a given wind speed. This study will exam
 ine the causes leading to the scatter in the catch efficiency of snow gaug
 es at the Marshall Test site near Boulder Colorado. The scatter in the dat
 a at a given wind speed arises from the variability in\, for example\, the
  characteristics of snow and turbulence. These key factors were identified
  using both observations collected in the field and computational fluid dy
 namics. Preliminary analysis of the relationship among automatic measureme
 nts of the particle characteristics\, wind speed and the catch efficiency 
 of different gauge shield configurations will be discussed. Overall\, this
  study contributes to improve our understanding of the variability associa
 ted with the automatic measurement of solid precipitation.\n
DTSTART:20151130T203000Z
DTEND:20151130T213000Z
LOCATION:Room 934\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue 
 Sherbrooke Ouest
SUMMARY:Seminar: Dr. Julie Theriault
URL:/meteo/channels/event/seminar-dr-julie-theriault-2
 56924
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