Lakes and rivers permanent water area change in Tonga
Tonga: Lakes and rivers permanent water area change was 208.3% in 2022. ◆ Volatile
Lakes and rivers permanent water area change in Tonga, 2005–2022
Source: United Nations Statistics Division, SDG Global Database. Measured in %.
Analysis
The most recent figure for lakes and rivers permanent water area change in Tonga is 208.3%, measured in 2022. That is the highest value across all 18 years on record.
Compared with earlier readings it is up 14.6% on the previous year and up 2,966.2% over ten years.
Over the whole period, lakes and rivers permanent water area change in Tonga peaked at 208.3% in 2022 and was at its lowest, -25.3%, in 2006.
That places Tonga 17th out of 251 countries with data for 2022, putting it in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Lakes and rivers permanent water area change in Tonga, year by year
| Year | % | Change |
|---|---|---|
| 2005 | -23.0% | — |
| 2006 | -25.3% | +10.0% |
| 2007 | -9.4% | -62.8% |
| 2008 | -12.9% | +37.7% |
| 2009 | 6.4% | -149.4% |
| 2010 | 6.8% | +6.7% |
| 2011 | 9.4% | +37.2% |
| 2012 | -7.3% | -177.7% |
| 2013 | -19.3% | +165.3% |
| 2014 | -8.2% | -57.7% |
| 2015 | 3.4% | -142.3% |
| 2016 | 42.4% | +1130.4% |
| 2017 | 83.2% | +96.2% |
| 2018 | 124.0% | +49.0% |
| 2019 | 139.8% | +12.8% |
| 2020 | 155.0% | +10.9% |
| 2021 | 181.7% | +17.2% |
| 2022 | 208.3% | +14.6% |
Tonga compared with similar countries
- Tonga's 208.3% is above the median for upper middle income countries, which is 8.7%, 23.9× the median. (53 countries reporting)
- Tonga's 208.3% is above the median for East Asia & Pacific, which is 18.1%, 11.5× the median. (33 countries reporting)
Biggest year-on-year movements
Years where Lakes and rivers permanent water area change in Tonga changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2016 | +1130.4% | 3.4% | 42.4% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | -12.8% | -25.3% | 6.4% | 5 |
| 2010s | 37.4% | -19.3% | 139.8% | 10 |
| 2020s | 181.7% | 155.0% | 208.3% | 3 |
Countries ranked near Tonga
- 14 French Polynesia 255.2% compare
- 15 Kiribati 233.4% compare
- 16 Sudan 225.3% compare
- 18 Tuvalu 160.6% compare
- 19 Cook Islands 153.5% compare
- 20 Northern Mariana Islands 149.9% compare
More environment data for Tonga
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.234 °C (2025)
- Temperature change 0.858 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 3.06 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), annual growth rate 0.1689 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Building (Energy) (Mt CO2e), annual 0 % change on previous year (2024)
Frequently asked questions
- What is lakes and rivers permanent water area change in Tonga?
- Lakes and rivers permanent water area change in Tonga was 208.3% in 2022, according to United Nations Statistics Division, SDG Global Database.
- What is the highest lakes and rivers permanent water area change recorded in Tonga?
- The highest recorded value was 208.3% in 2022.
- What is the lowest lakes and rivers permanent water area change recorded in Tonga?
- The lowest recorded value was -25.3% in 2006.
- How does Tonga rank for lakes and rivers permanent water area change?
- Tonga ranks 17th out of 251 countries with data for 2022.
- Is lakes and rivers permanent water area change rising or falling in Tonga?
- Over the last ten years it is up 2,966.2%. The long-run trend across the full record is volatile.
- Where does this Tonga data come from?
- The figures come from United Nations Statistics Division, SDG Global Database, published as part of Lakes and rivers permanent water area change (%). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 18 observations, free to reuse under UN SDG Global Database (open, attribution requested).