{"HAPI":"3.3","description":"NORSTAR single-beam riometer cosmic noise absorption and raw signal voltage - Gillam, MB, Canada","resourceURL":"https://data.phys.ucalgary.ca/data/datasets/riometers.html","contact":"Emma Spanswick (elspansw@ucalgary.ca)","datasetCitation":"https://doi.org/10.11575/AFYX-M516","x_dataUsage":"This dataset is provided by the University of Calgary and is subject to the data usage and citation policy described at https://data.phys.ucalgary.ca/data/how_to_cite.html","startDate":"1989-03-10T00:00:00Z","stopDate":"2026-08-13T00:00:00Z","cadence":"PT5S","maxRequestDuration":"P31D","sampleStartDate":"2007-11-19T00:00:00Z","sampleStopDate":"2007-11-20T00:00:00Z","geoLocation":[-94.64,56.38],"x_site_uid":"gill","x_site_full_name":"Gillam, MB, Canada","x_descriptionLong":"Cosmic noise absorption and raw signal voltage from the NORSTAR single-frequency single-beam riometer at this site, recorded at 5-second cadence. Riometers measure ionospheric opacity through the absorption of cosmic radio noise. K2 is the baselined data product: absorption is derived by baselining the raw signal, and is the fill value (NaN) where it could not be computed. More information at https://data.phys.ucalgary.ca","parameters":[{"name":"Time","type":"isotime","units":"UTC","fill":null,"length":20},{"name":"absorption","type":"double","units":"dB","fill":"NaN","description":"Cosmic noise absorption, derived from the baselined raw signal"},{"name":"raw_signal","type":"double","units":"V","fill":"NaN","description":"Riometer raw signal voltage"}],"status":{"code":1200,"message":"OK"}}