Measuring Snow Snow/Ice Report CoCoRaHS Snow Measurement Guidelines

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Presentation transcript:

Measuring Snow Snow/Ice Report CoCoRaHS Snow Measurement Guidelines How Well are We Measuring Snow? ASU Stations For Next Class: Read Niziol et al. (1995) on Lake-Effect Snow

Weather News https://www.washingtonpost.com/news/capital-weather-gang/wp/2018/02/09/hail-larger-than-softballs-pummeled-an-argentina-city-on-thursday/?utm_term=.224edac029e6 https://www.washingtonpost.com/news/capital-weather-gang/wp/2018/02/13/study-sea-level-rise-is-accelerating-and-its-rate-could-double-in-next-century/?utm_term=.c2d98fca81c7

Homework Questions 1. What are the components of a climatological snow observation? 2. What instruments are used for measuring snow? 3. Discuss at least three challenges in measuring snow. 4. How is depth of snow on the ground measured? 5. How is the water content of freshly fallen snow measured?

Measuring Snow Video http://www.cocorahs.org/media/video/measuringsnow/default.aspx

How Well do We Measure Snow? https://journals.ametsoc.org/toc/bams/93/6

Poga Mountain, NC Upper Air Met Station (1137 m) 12-hr New Snowfall and SWE Met Station (1137 m) Vertically-pointing Micro Rain Radar Pluvio Weighing Precip Gauge Parsivel Disdrometer & Present Weather Sensor Flat Springs COOP Station (1018 m)

Roan MOPRAM Suite Precipitation type sensor Sonic Snow Depth Temp/RH Pluvio liquid precip w/shield

Quelccaya Icecap (5,670 m) One of the most important archives in the tropics for the reconstruction of past climates from ice cores.