Portugal vs Yemen: Standardised Precipitation-Evapotranspiration Index
Standardised Precipitation-Evapotranspiration Index over time
- Portugal
- Yemen
How they compare
Portugal currently reports -1.58 against -1.58 in Yemen, a difference of 0.
The two have swapped places 30 times across 64 shared years of data; in 1960 it was Portugal ahead.
Portugal ranks 169th and Yemen ranks 170th of 189 countries.
Across the 7 decades both report, Portugal averaged higher in 4 and Yemen in 3.
Head to head by decade
| Decade | Portugal | Yemen | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 0.488 | 0.9091 | 0.4211 | Yemen |
| 1970s | 0.3456 | -0.8331 | 1.18 | Portugal |
| 1980s | -0.1579 | -0.4658 | 0.3079 | Portugal |
| 1990s | -0.3411 | -0.0993 | 0.2417 | Yemen |
| 2000s | -0.2043 | -0.8346 | 0.6303 | Portugal |
| 2010s | -0.3956 | -0.5869 | 0.1914 | Portugal |
| 2020s | -1.03 | -0.9633 | 0.0699 | Yemen |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher standardised precipitation-evapotranspiration index, Portugal or Yemen?
- Portugal, at -1.58 against -1.58 in Yemen as of 2023.
- What is the difference in standardised precipitation-evapotranspiration index between Portugal and Yemen?
- 0, with Portugal ahead.
- How many years of comparable data are there for Portugal and Yemen?
- 64 years are reported by both, from 1960 to 2023.
- How do Portugal and Yemen rank globally for standardised precipitation-evapotranspiration index?
- Portugal ranks 169th and Yemen ranks 170th of 189 countries.
- Where does this data come from?
- Global SPEI database (SPEIbase). https://spei.csic.es/database.html, published as Standardised Precipitation-Evapotranspiration Index. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
The SPEI fulfills the requirements of a drought index since its multi-scalar character enables it to be used by different scientific disciplines to detect, monitor, and analyze droughts. Like the sc-PDSI and the SPI, the SPEI can measure drought severity according to its intensity and duration, and can identify the onset and end of drought episodes. The SPEI allows comparison of drought severity through time and space, since it can be calculated over a wide range of climates, as can the SPI.