The Indian Ocean Geoid Low (IOGL) is a gravity anomaly in the Indian Ocean. A circular geoid low situated just south of the Indian peninsula, it is the region with Earth's largest gravity anomaly.[1][2] It forms a depression in the sea level covering an area of about 3 million km2 (1.2 million sq mi), almost the size of India itself. Discovered in 1948 by Dutch geophysicist Felix Andries Vening Meinesz as a result of a ship's gravity survey, it remained largely a mystery until May 2023, when the weak local gravity was empirically explained using computer simulations and seismic data.[3]
- ^ Pal, Debanjan; Ghosh, Attreyee (16 May 2023). "How the Indian Ocean Geoid Low Was Formed". Geophysical Research Letters. 50 (9). American Geophysical Union/Wiley. doi:10.1029/2022GL102694.
- ^ Raman, Spoorthy (2023). "Scientists find out the cause for geoid low in the Indian Ocean". Indian Institute of Science. Retrieved 15 January 2024.
- ^ Prisco, Jacopo (24 July 2023). "There is a 'gravity hole' in the Indian Ocean, and scientists now think they know why". CNN. Retrieved 15 January 2024.
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