We had approximately 76 mm of snow in my backyard in Brookwood, Alabama. I also took three measurement samples of 1000 mL of snow and allowed each to melt. The average result was 120 mL of water.
Tim Williamson On Thu, Feb 10, 2011 at 10:09 AM, James R. Frysinger <[email protected] > wrote: > We've just had another snowstorm. This was part of a system that dropped > large amounts of snow on the plains and the south. Our area experienced just > the fringe of that system, though. > > I measured the depth of the accumulated snow as 1.8 cm. > > I gathered snow from an area measuring 14 cm by 25 cm and weighed it as > amounting to 45 g. > > Calculations: > > Rainfall equivalent ---- > (0.045 kg)/(0.14 m)(0.25 m) = 1.2857 kg/m2 (extra digits carried out) > = 1.3 mm rain equivalent (assume 1 L of water is 1 kg of water) > > Ratio of snow to rain equivalent ---- > (1.2857 mm)(1.8 cm) = 0.7 (note the prefix ratio) > > This was a nice "clean" snowfall, occurring entirely at temperatures below > 0 °C and containing no slush, frozen rain, sleet, ice, etc. > > OFF TOPIC: I encourage each of you to look into joining CoCoRaHS as a > volunteer. See http://www.cocorahs.org/ for details. It costs little, but > a few minutes of your time each day would be very useful to NOAA and NWS. > Click on your state in their map to see what station density occurs in your > area; stations that have reported by that time (for that given date) will > appear on the map. Orography and other factors are responsible for my > station reporting results that differ greatly from other stations less than > 30 km away! > Unfortunately, the data must be entered in inches. I have > corresponded with the man who runs CoCoRaHS and our state's coordinator (who > works at NOAA) about this and they agree that metric is better. However, > when setting up CoCoRaHS they feared that collecting the data in metric > units would have resulted in many fewer volunteers. I am still pressing him > to at least devise a data collection page that accepts metric units rather > than requiring me to do conversions. Maybe you could join up and help make > this program metric-friendly, at least! > > Jim > > -- > James R. Frysinger > 632 Stony Point Mountain Road > Doyle, TN 38559-3030 > > (C) 931.212.0267 > (H) 931.657.3107 > (F) 931.657.3108 > > -- * * * * *If you do not wish to receive these messages, then reply with 'OPT OUT' in the subject line or 'OPT OUT' in the body of the email reply back to me. You may also call me at the number below as well.<[email protected]> * * * *Thankyou for your time. * * * *Tim Williamson Alabama, USA 1-205-765-6090 *
