Macapá, a Brazilian equatorial magnetometer station: installation, data availability and methods for temperature correction

• DOI: 10.5194/gi-2023-10
• Publication Date: 2024-02-01T09:06:19Z
• Authors: Cristiano Mendel ...; Katia Jasbinschek...; Achim Ohlert; Jürgen Matzka; Marcos Vinicius d...; Reynerth Pereira ...
• Keywords: 550; QC801-809; Geophysics. Cosmic physics; 530

Abstract. In the last 60 years, largest displacement of magnetic equator (by about 1100 km northwards) occurred in Brazilian longitudinal sector. The passed by Tatuoca observatory (TTB) northern Brazil 2012 and continues to move northward. Due horizontal geomagnetic field geometry at equator, enhanced electric currents ionosphere are produced – so called equatorial electrojet (EEJ). effect EEJ is observed range ± 3 degrees from where observatories record an amplified daily variation H component. order track spatial temporal this phenomena, a new magnetometer station was installed Macapá (MAA), which 350 northwest TTB. paper, we present setup data analysis MAA 11/2019 until 09/2021. Because its special configuration, develop method for temperature correction vector data.