Solomon Islands vs Vanuatu: Standardised Precipitation-Evapotranspiration Index
Standardised Precipitation-Evapotranspiration Index over time
- Solomon Islands
- Vanuatu
How they compare
Solomon Islands currently reports 0.0007 against -0.0005 in Vanuatu, a difference of 0.0012.
That makes Solomon Islands's figure about 1.4 times Vanuatu's.
The two have swapped places 29 times across 63 shared years of data; in 1960 it was Vanuatu ahead.
Solomon Islands ranks 73rd and Vanuatu ranks 74th of 188 countries.
Across the 7 decades both report, Solomon Islands averaged higher in 6 and Vanuatu in 1.
Head to head by decade
| Decade | Solomon Islands | Vanuatu | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 0.6071 | 0.5565 | 0.0506 | Solomon Islands |
| 1970s | 0.6305 | 0.1321 | 0.4984 | Solomon Islands |
| 1980s | -1.05 | 0.1565 | 1.2 | Vanuatu |
| 1990s | -0.2487 | -1.4 | 1.16 | Solomon Islands |
| 2000s | -0.0212 | -0.3039 | 0.2828 | Solomon Islands |
| 2010s | -0.0052 | -0.0598 | 0.0546 | Solomon Islands |
| 2020s | -0.0003 | -0.0254 | 0.0251 | Solomon Islands |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher standardised precipitation-evapotranspiration index, Solomon Islands or Vanuatu?
- Solomon Islands, at 0.0007 against -0.0005 in Vanuatu as of 2023.
- What is the difference in standardised precipitation-evapotranspiration index between Solomon Islands and Vanuatu?
- 0.0012, with Solomon Islands ahead.
- How many years of comparable data are there for Solomon Islands and Vanuatu?
- 63 years are reported by both, from 1960 to 2023.
- How do Solomon Islands and Vanuatu rank globally for standardised precipitation-evapotranspiration index?
- Solomon Islands ranks 73rd 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.