upwelling

Etymology

From up- + welling.

noun

1. An upward movement from a lower source.
   Rather separate from the abolitionist campaign, although likewise led by anglophone Evangelicals, was a sudden upwelling of commitment to worldwide mission. 2009, Diarmaid MacCulloch, A History of Christianity, Penguin, published 2010, page 873
2. the oceanographic phenomenon that occurs when strong, usually seasonal, winds push water away from the coast, bringing cold, nutrient-rich deep waters up to the surface

verb

1. present participle and gerund of upwell