New Space Weather Measurements from MACAWS:   Monitors for Alaskan and Canadian Auroral Weather in Space

The MRI Collaborative: Development of Monitors for Alaskan and Canadian Auroral Weather in Space (MACAWS) is a sensor web network that provides both real-time and historical GNSS TEC and scintillation data products. These data are needed for geospace science and space weather monitoring in the auroral regions of northern Alaska and northwestern Canada that are currently not sampled or under-sampled.  These regions are significant as they are the locations of origin for the majority of space weather events that affect the United States. At the end of the project, it is planned that 35 PolaRx5S Septentrio GNSS receivers in Canada and northern Alaska will be installed.  Currently, 15 receivers have been shipped and a subset of these have been installed.  Each receiver tracks both the GPS and GLONASS constellations.  The data are collected to compute TEC and scintillation statistics for each satellite in track at every new station.  All data are freely available.  A subset of the data are available in near real-time.  Processed TEC and scintillation indices are input into the Madrigal database.  We report here on the TEC and scintillation data collected from the currently installed MACAWS sites. These include the line of sight TEC data from each GNSS satellite-receiver pair at one minute intervals plus scintillation parameters from each of the MACAWS receivers.  We will demonstrate how these data products can be freely downloaded and show the new TEC maps, with the overlay of the measured scintillation. We will also focus on analysis of recent space weather events, including a case analysis of a substorm observed on 1 March 2017.