The need to calibrate the surface hydrological model of Tenerife in the face of adverse meteorological phenomena such as the one that occurred on February 1, 2010, which produced heavy runoffs in Bco. de Santos.

Abstract

The watershed of the Barranco de Santos is one of the largest on the island of Tenerife. The riverbed has its source at an altitude of 945 metres above sea level, on the Las Mercedes mountain, and flows through the Vega de La Laguna, descending towards the sea, bordering the Anaga mountains to the southwest and finally flowing into the Los Llanos dock in the port of Santa Cruz de Tenerife. Its route of more than 16 km has stretches where it becomes a real canyon, with cliff walls on its banks up to a hundred metres high. The average rainfall on the island of Tenerife is generally not very high, which means that the riverbed does not normally flow except in torrential episodes, which can cause unforeseen flooding, causing great material damage and even personal injury.\nDespite the large size of this basin, there are no flow gauges with which to estimate discharge volumes. This is mainly due to the fact that the episodes that produce runoff in the channel are usually sporadic and torrential. This document analyses the adverse phenomenon that occurred on 1 February 2010 and which gave rise to heavy runoff in the Barranco de Santos basin.