Figure A1.1From: Sweet tweets! Evaluating a new approach for probability-based sampling of TwitterExample specification of the Atlanta–Alpharetta–Sandy Springs, Georgia MSA using the center and radius specified in Table 2. Twitter queries based on geographies in the public TSAPI require that a latitude, longitude and radius be specified rather than a place keyword or location name. Underlying Map accessed from Google Maps (https://www.google.com/maps)Back to article page