PCA analysis of the nighttime anomaly in far-from-geomagnetic pole regions from VTEC GNSS data

• Published in: Earth, Planets and Space
• Main Authors: Meza, Amalia Margarita, Natali, Maria Paula, Fernandez, Laura Isabel
• Format: Article in Journal/Newspaper
• Language: English
• Published: Terra Scientific Publishing
• Subjects: ANOMALIES; GLOBAL IGS VTEC MAPS; PRINCIPAL COMPONENT ANALYSIS; WEDDELL SEA ANOMALY; https://purl.org/becyt/ford/1.5; https://purl.org/becyt/ford/1; Weddell Sea; Okhotsk; Weddell; Argentina; Margarita; Geomagnetic Pole; okhotsk sea
• Online Access: http://hdl.handle.net/11336/77598

The Weddell Sea Anomaly (WSA) is defined when the nighttime plasma density is greater than the daytime density in the area near the Weddell Sea, more specifically in the region limited by 50° S-70°S in latitude and 225° E-315° E in longitude. A similar ionospheric anomaly is also observed near the O...