Instituto de Meteorologia provides renewed Drought Observatory on its Internet portal

As of today, the Meteorology Institute will make available a renovated Drought Observatory on its Internet portal, which […]

The Institute of Meteorology makes available, as of today, a renewed Drought Observatory on its Internet portal, which uses two indices (PDSI and SPI) to, in a complementary way, better assess and monitor the weather drought conditions, including SPI index values ​​from 1942 to the present.

Within the scope of climate monitoring activities, with particular emphasis on the monitoring of meteorological drought situations, the Meteorology Institute created and institutionalized, in 2009, the Drought Observatory for public information, available online.

This Observatory has allowed the monitoring of the evolution of meteorological drought situations through the use of the PDSI (Palmer Drought Severity Index) drought index, giving monthly indication on the degree of severity and producing a preview of the evolution, with scenarios based on occurrence probabilities of precipitation in the medium term.

Following a recent recommendation by the WMO (World Meteorological Organization), which advises the use, by all Meteorology and Hydrology services, of the SPI (Standardized Precipitation Index) to characterize the meteorological drought, the IM proceeded with the implementation of the SPI by river basins of Mainland Portugal.

Learn more about Drought Observatory here