Kuyaziwa ukuthi ukwakheka kweqhwa kuqala ngaphansi kwesimo sokuthi ukuphuma kokushisa kungene emkhathini kusuka ebusweni besiziba kudlula okufakwayo kuye kusuka ezingqimbeni ezijulile. Lezi zimo zihlangatshezwa yizindawo ezibizwa nge-energy sink, ezingabandakanyi nje kuphela izindawo ezisezindaweni eziphakeme, kodwa futhi nezingxenye ezibalulekile zezindawo ezipholile kuzo zombili izingxenyana zomhlaba.
Kodwa-ke, imibandela yokwakheka kweqhwa lasolwandle etholakala ezindaweni zamanzi kagesi ayitholakali kuzo zonke izimo. Ngamanye amagama, ukuba khona kombuso weqhwa noma ongenawo iqhwa ezifundeni zokuncipha kwamandla kuncike ezingeni lokubamba iqhaza kokushisa okukhombisa ukushintshana kwamandla nomkhathi.
Indima edlalwa ukushisa okukhangayo ekugcineni umbuso ongenawo iqhwa ezifundeni zamanzi echibini kwenza kube nesidingo sokucacisa izinto ezilawula ukudluliselwa kwawo olwandle. Ngempela, ezimweni eziningi, imisinga edlulisela ukushisa iye ezigxotsheni isakazeka ngokujula futhi ayinakho ukuxhumana ngqo nomoya.
Njengoba kwaziwa, ukudluliswa kokushisa mpo olwandle kwenziwa ngokusebenzisa ukuxuba. Ngakho-ke, ukwakheka kwe-halocline olwandle olujulile kudala izimo zokwakhiwa kweqhwa nokudlulela embusweni weqhwa, kanye nokwehla kwalo - kokushintshela embusweni ongenalutho.
