Halbeegga ugu caansan waxaa ka mid ah radius ee dabaysha ugu badnaan, radius of 34-knot dabaysha (ie ciidanka duufaan), radius of bannaanka isobar xiran (ROCI), iyo radius of dabaysha baaba'aan. metric dheeraad ah waa radius at taas oo duurka duufaan ee la xiriira vorticity field hoos u dhaco si 1 × 10-5 s-1. On Earth, duufaanada kulaylaha kala duwan baaxadda weyn, ka 1002,000 kiiloomitir (621,243 mi) sida lagu qiyaasay by radius of dabaysha baaba'aan.
3<unk>6 darajooyin latitude