( ( ( Upwelling ( ( The movement ) ( of ( nutrient-rich ( deep ( sea water ) ) ) ) ) ) ( to ( ( the ( ocean 's ) ) surface ) ) ) . )
(ROOT (S (VP (VBG Upwelling) (NP (NP (DT The) (NN movement)) (PP (IN of) (NP (JJ nutrient-rich) (JJ deep) (NN sea) (NN water)))) (PP (TO to) (NP (NP (DT the) (NN ocean) (POS 's)) (NN surface)))) (. .)))
Upwelling The movement of nutrient-rich deep sea water to the ocean's surface.
(ROOT (S (NP (NNP Upwelling)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (SBAR (WHADVP (WRB when)) (S (NP (JJ deep) (NN ocean) (NN water)) (VP (VBZ rises) (PP (TO to) (NP (DT the) (NN surface))))))))) (. .)))
Upwelling is the term for when deep ocean water rises to the surface.