INPE EMBRACE Space Weather Information and Prediction Center
Ionospheric Scintillation S4 Index Products
Scintillation S4 Index over Brazil	Product Desciption:
	GNSS signal scintillation monitored by ground-based receivers (LISN network). The map displays location of the receivers, near realtime S4 index. The movie shows 2-D plot of ionospheric scintillation during the evening to night time period of the previous day, represented by the S4 index, that impact telecommunication systems and GNSS signal availability. Target Users: Key product users include industries relying on high-accuracy GNSS positioning: surface and air navigation systems, agriculture, surveying, construction, drilling, and scientific users Link to Map of Scintillation S4 Index over Brazil Link to Video of Scintillation S4 Index over Brazil
Cadence: 10 min.	Data Source: Ground-based GPS receivers