Chad vs Dominica: Standardised Precipitation-Evapotranspiration Index
Standardised Precipitation-Evapotranspiration Index over time
- Chad
- Dominica
How they compare
Dominica currently reports -0.2416 against -0.2905 in Chad, a difference of 0.0489.
The two have swapped places 23 times across 64 shared years of data; in 1960 it was Chad ahead.
Chad ranks 94th and Dominica ranks 91st of 188 countries.
Across the 7 decades both report, Chad averaged higher in 2 and Dominica in 5.
Head to head by decade
| Decade | Chad | Dominica | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 1.07 | -0.227 | 1.29 | Chad |
| 1970s | -0.1039 | -0.0607 | 0.0432 | Dominica |
| 1980s | -0.8694 | 0.7634 | 1.63 | Dominica |
| 1990s | -0.768 | 0.2805 | 1.05 | Dominica |
| 2000s | -0.9856 | 0.1383 | 1.12 | Dominica |
| 2010s | -0.4355 | 0.1335 | 0.569 | Dominica |
| 2020s | 0.1593 | -0.6603 | 0.8196 | Chad |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher standardised precipitation-evapotranspiration index, Chad or Dominica?
- Dominica, at -0.2416 against -0.2905 in Chad as of 2023.
- What is the difference in standardised precipitation-evapotranspiration index between Chad and Dominica?
- 0.0489, with Dominica ahead.
- How many years of comparable data are there for Chad and Dominica?
- 64 years are reported by both, from 1960 to 2023.
- How do Chad and Dominica rank globally for standardised precipitation-evapotranspiration index?
- Chad ranks 94th and Dominica ranks 91st 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.