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The Environment and Climate Change Canada solid precipitation intercomparison data from Bratt's Lake and Caribou Creek, Saskatchewan

Abstract. Prior to the beginning of the World Meteorological Organization's
(WMO) Solid Precipitation Inter-Comparison Experiment (SPICE, 2013–2015),
two precipitation measurement intercomparison sites were established in
Saskatchewan to help assess the systematic bias in the automated gauge
measurement of solid precipitation and the impact of wind on the undercatch
of snow. Caribou Creek, located in the southern boreal forest, and
Bratt's Lake, located in the southern plains, are a contribution to the
international SPICE project but also to examine national and regional issues
in measuring solid precipitation, including regional assessment of wind bias
in precipitation gauges and windshield configurations commonly used in
Canadian monitoring networks. Overlapping with WMO-SPICE, the Changing Cold
Regions Network (CCRN) Special Observation and Analysis Period (SOAP)
occurred from 2014 to 2015, involving other enhanced observations and cold
regions research projects in the same geographical domain as the
Saskatchewan SPICE sites. Following SPICE, the two Saskatchewan sites
continued to collect core meteorological data (temperature, humidity, wind
speed, etc.) as well as precipitation observations via several automated
gauge configurations, including the WMO automated reference and the
Meteorological Service of Canada's (MSC) network gauges. In addition, manual
snow surveys to collect snow cover depth, density, and water equivalent were
completed over the duration of the winter periods at the northern Caribou
Creek site. Starting in the fall of 2013, the core intercomparison
precipitation and ancillary data continued to be collected through the
winter of 2017. Automated observations were obtained at a temporal
resolution of 1 min, subjected to a rigorous quality control process, and
aggregated to a resolution of 30 min. The manual snow surveys at Caribou
Creek were typically performed every second week during the SPICE field
program with monthly surveys following the end of the SPICE intercomparison
period. The Saskatchewan SPICE data are available at https://doi.org/10.18164/63773b5b-5529-4b1e-9150-10acb84d59f0 (Smith and Yang, 2018). The data
collected at the Saskatchewan SPICE sites will continue to be useful for
transfer function testing, numerical weather prediction and hydrological
forecasting verification, ground truth for remote-sensing applications, as
well as providing reference precipitation measurements for other concurrent
research applications in the cold regions.
