Skip to main content

Excellent contribution. I want to know concerned about whether this relative index will replace the traditional one in the short term, or if, on the contrary, both indices are expected to be maintained. I have developed two new atmospheric indices for monitoring ENSO in Colombia, one superficial and the other tropospheric, the first based on mean pressure anomalies at sea level, the second based on humidity advection at six atmospheric levels from 1000hPa to 200 hPa (The scientific article is still in the process of publication). These atmospheric indices have proven to be very well adjusted to the physical reality of Colombia, and in accordance with the MEI index, my surface index has already marked a La Niña episode since September 2024, and precisely in October and November 2024, 27 of the 32 departments that make up Colombia have experienced floods, devastated land and torrential floods consistent with what is expected in the country under La Niña episodes. All this is consistent with what is suggested by its relative Niño 3.4 index, but not with the traditional one.