Guinea-Bissau vs Vanuatu: Standardised Precipitation-Evapotranspiration Index
Standardised Precipitation-Evapotranspiration Index over time
- Guinea-Bissau
- Vanuatu
How they compare
Vanuatu currently reports -0.0005 against -0.064 in Guinea-Bissau, a difference of 0.0635.
The two have swapped places 22 times across 63 shared years of data; in 1960 it was Vanuatu ahead.
Guinea-Bissau ranks 77th and Vanuatu ranks 74th of 188 countries.
Across the 7 decades both report, Guinea-Bissau averaged higher in 1 and Vanuatu in 6.
Head to head by decade
| Decade | Guinea-Bissau | Vanuatu | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 0.5163 | 0.5565 | 0.0402 | Vanuatu |
| 1970s | -0.467 | 0.1321 | 0.5991 | Vanuatu |
| 1980s | -1.05 | 0.1565 | 1.2 | Vanuatu |
| 1990s | -0.7063 | -1.4 | 0.6979 | Guinea-Bissau |
| 2000s | -0.5368 | -0.3039 | 0.2328 | Vanuatu |
| 2010s | -0.4014 | -0.0598 | 0.3416 | Vanuatu |
| 2020s | -0.0706 | -0.0254 | 0.0453 | Vanuatu |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher standardised precipitation-evapotranspiration index, Guinea-Bissau or Vanuatu?
- Vanuatu, at -0.0005 against -0.064 in Guinea-Bissau as of 2023.
- What is the difference in standardised precipitation-evapotranspiration index between Guinea-Bissau and Vanuatu?
- 0.0635, with Vanuatu ahead.
- How many years of comparable data are there for Guinea-Bissau and Vanuatu?
- 63 years are reported by both, from 1960 to 2023.
- How do Guinea-Bissau and Vanuatu rank globally for standardised precipitation-evapotranspiration index?
- Guinea-Bissau ranks 77th and Vanuatu ranks 74th of 188 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.