Switzerland vs Viet Nam: Standardised Precipitation-Evapotranspiration Index
Standardised Precipitation-Evapotranspiration Index over time
- Switzerland
- Viet Nam
How they compare
Switzerland currently reports -0.165 against -0.1963 in Viet Nam, a difference of 0.0313.
The two have swapped places 34 times across 64 shared years of data; in 1960 it was Switzerland ahead.
Switzerland ranks 84th and Viet Nam ranks 87th of 189 countries.
Across the 7 decades both report, Switzerland averaged higher in 4 and Viet Nam in 3.
Head to head by decade
| Decade | Switzerland | Viet Nam | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 0.2463 | -0.1848 | 0.4311 | Switzerland |
| 1970s | 0.2009 | 0.4621 | 0.2611 | Viet Nam |
| 1980s | 0.414 | -0.0203 | 0.4343 | Switzerland |
| 1990s | 0.2595 | 0.0673 | 0.1922 | Switzerland |
| 2000s | 0.0318 | -0.0504 | 0.0821 | Switzerland |
| 2010s | -0.5443 | 0.0347 | 0.579 | Viet Nam |
| 2020s | -0.7748 | -0.2272 | 0.5475 | Viet Nam |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher standardised precipitation-evapotranspiration index, Switzerland or Viet Nam?
- Switzerland, at -0.165 against -0.1963 in Viet Nam as of 2023.
- What is the difference in standardised precipitation-evapotranspiration index between Switzerland and Viet Nam?
- 0.0313, with Switzerland ahead.
- How many years of comparable data are there for Switzerland and Viet Nam?
- 64 years are reported by both, from 1960 to 2023.
- How do Switzerland and Viet Nam rank globally for standardised precipitation-evapotranspiration index?
- Switzerland ranks 84th and Viet Nam ranks 87th 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.