N
Number of drought events in the analysed period (SSI-1) - SSP1 Lower bound
Number of Drought events as defined by the SSI-1 indicator (Standardised Streamflow Index cumulated on a 1-month window) a consecutive series of days below -1 using SSP1 Lower bound Climate change scenario.
The existing climate refers to the entire historical period of the last 40 years (1979 - 2016) the methodology employed for the computation is exhaustively explained in the Background paper.
There are reference periods for the existing climate and for the future scenarios the average duration is computed over such periods in a statistical sense (for future years from 2060 to 2100 are considered). The definition of the indicator is a series of consecutive days where the used indicator is below -1. Read More
The existing climate refers to the entire historical period of the last 40 years (1979 - 2016) the methodology employed for the computation is exhaustively explained in the Background paper.
There are reference periods for the existing climate and for the future scenarios the average duration is computed over such periods in a statistical sense (for future years from 2060 to 2100 are considered). The definition of the indicator is a series of consecutive days where the used indicator is below -1. Read More
Number of drought events in the analysed period (SSI-1) - SSP5 Upper bound
Number of Drought events as defined by the SSI-1 indicator (Standardised Streamflow Index cumulated on a 1-month window) a consecutive series of days below -1 using SSP5 Upper bound Climate change scenario.
The existing climate refers to the entire historical period of the last 40 years (1979 - 2016) the methodology employed for the computation is exhaustively explained in the Background paper.
There are reference periods for the existing climate and for the future scenarios the average duration is computed over such periods in a statistical sense (for future years from 2060 to 2100 are considered). The definition of the indicator is a series of consecutive days where the used indicator is below -1. Read More
The existing climate refers to the entire historical period of the last 40 years (1979 - 2016) the methodology employed for the computation is exhaustively explained in the Background paper.
There are reference periods for the existing climate and for the future scenarios the average duration is computed over such periods in a statistical sense (for future years from 2060 to 2100 are considered). The definition of the indicator is a series of consecutive days where the used indicator is below -1. Read More
P
Peak Ground Acceleration PGA - 1500 Years
The seismic hazard map (PGA = 1500 years) indicates the mean value of peak ground acceleration (PGA) for a return period of 1500 years. The map has global coverage and a resolution of 30' (~55.5 kilometers at the equator).
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Peak Ground Acceleration PGA - 2475 Years
The seismic hazard map (PGA = 2475 years) indicates the mean value of peak ground acceleration (PGA) for a return period of 2475 years. The map has global coverage and a resolution of 30' (~55.5 kilometers at the equator).
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Peak Ground Acceleration PGA - 250 Years
The seismic hazard map (PGA = 250 years) indicates the mean value of acceleration for a return period of 250 years. The map has global coverage and a resolution of 30' (~55.5 kilometers at the equator).
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Peak Ground Acceleration PGA - 475 Years
The seismic hazard map (PGA = 475 years) indicates the mean value of peak ground acceleration (PGA) for a return period of 475 years. The map has global coverage and a resolution of 30' (~55.5 kilometers at the equator).
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Peak Ground Acceleration PGA - 975 Years
The seismic hazard map (PGA = 975 years) indicates the mean value of peak ground acceleration (PGA) for a return period of 975 years. The map has global coverage and a resolution of 30' (~55.5 kilometers at the equator).
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pH at surface (pH)
pH at surface. Units: pH
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Population density
Population density. Units: persons/km**2
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Population distribution (GHSL) 2020
The GHS-POP depicts the distribution of human population, expressed as the number of people per cell. Residential population are derived from the raw global census data harmonized by CIESIN for the Gridded Population of the World, version 4.11 (GPWv4.11) at polygon level, and disaggregated from census or administrative units to grid cells, informed by the distribution, classification and density of built-up as mapped in the GHSL global layers.
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