The convergence of the north east and south east trade winds near the equator is known as the inter-tropical convergence zone (ITCZ). This is the correct answer (Option 3).

Option 1: Doldrums refers to the calm, windless areas near the equator where the trade winds converge. While similar to the ITCZ, the ITCZ specifically refers to the area of convergence.

Option 2: Jet streams are high altitude air currents that flow in narrow bands within the atmosphere. They are not directly related to the convergence of trade winds near the equator.

Option 4: Upper air monsoons are seasonal wind patterns in the upper atmosphere that bring monsoon rains to different regions. They are not directly related to the convergence of trade winds near the equator.

In summary, the correct term for the convergence of the north east and south east trade winds near the equator is the inter-tropical convergence zone (ITCZ) (Option 3).