Meteorological observations and measurements collected during the Storms and Precipitation Across the continental Divide Experiment (SPADE), April – June 2019

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Global Water Future’s Storms and Precipitation Across the continental Divide Experiment (SPADE) was initiated to enhance our knowledge of the contribution of different moisture flows on precipitation across the Canadian Rockies. SPADE installed instrumentation on both sides of the continental divide to gather automated and manual observations during an intensive field campaign from 24 April to 26 June 2019. Various meteorological instruments were deployed including a two Doppler LiDARs, three vertically pointing micro rain radars and three optical disdrometers, alongside human observers during precipitation events. Detailed meteorological data such as air temperature, relative humidity, 3D wind fields, vertical profiles of radar reflectivity and Doppler velocity, precipitation and its type, and snow microphotography images were collected. This dataset will serve as a baseline for future work on atmospheric conditions over major orographic features by comparing the varying conditions on either side of a large topographic feature.

Thériault, J. M., Déry, S. J., Pomeroy, J. W., Stewart, R. E., Smith, H., Thompson, H., Bertoncini, A., Hébert-Pinard, C., Mitchell, S., Morris, J., Almonte, J., Lachapelle, M., Mariani, Z., Carton, C. (2020). Meteorological observations and measurements collected during the Storms and Precipitation Across the continental Divide Experiment (SPADE), April – June 2019 [Dataset]. Federated Research Data Repository. https://doi.org/10.20383/101.0221 . Thériault, J. M., Déry, S. J., Pomeroy, J. W., Smith, H. M., Almonte, J., Bertoncini, A., Crawford, R. W., Desroches-Lapointe, A., Lachapelle, M., Mariani, Z., Mitchell, S., Morris, J. E., Hébert-Pinard, C., Rodriguez, P., and Thompson, H. D.: Meteorological observations collected during the Storms and Precipitation Across the continental Divide Experiment (SPADE), April–June 2019, Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2020-160 , in review, 2020.

1. Description of methods used for collection/generation of data: Thériault, J. M., Déry, S. J., Pomeroy, J. W., Smith, H. M., Almonte, J., Bertoncini, A., Crawford, R. W., Desroches-Lapointe, A., Lachapelle, M., Mariani, Z., Mitchell, S., Morris, J. E., Hébert-Pinard, C., Rodriguez, P., and Thompson, H. D.: Meteorological observations collected during the Storms and Precipitation Across the continental Divide Experiment (SPADE), April–June 2019, Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2020-160 , in review, 2020. 2. Methods for processing the data: Most files have not been processed and are raw files. MRR files have been processed using with a noise removal algorithm from Maahn and Kollias (2012). This is described in the data paper. Maahn, M., and Kollias, P.: Improved Micro Rain Radar snow measurements using Doppler spectra post-processing. Atmos. Meas. Tech., 5, 2661–2673, https://doi.org/10.5194/amt-5-2661-2012 , 2012. 3. Instrument- or software-specific information needed to interpret the data: Files are all csv, txt, or netcdf so basic programming package is required 4. Environmental/experimental conditions: Data were gathered over the course of an intensive field campaign in the Canadian Rockies from 26 April – 26 June, 2019. Data were gathered from three permanent field sites: i) Nipika Mountain Resort (50.61183889N 115.8008167W, 1087 m ASL), ii) Fortress Mountain Powerline (50.82423333N 115.1972167W, 2076 m ASL), and iii) Fortress Junction Service (50.785568N 115.160941W, 1580 m ASL). Partial data were also gathered on a temporary from the Biogeoscience Institute (51.026681N 115.034411W, 1418 m ASL), and Storm Mountain Lodge (51.25283667N 115.9988733W, 1723 m ASL).

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https://doi.org/10.20383/101.0221