Chlorophyll-a anomaly, remote sensing in Heard Island and McDonald Islands
Heard Island and McDonald Islands: Chlorophyll-a anomaly, remote sensing was 0.4% in 2022. ▼ Falling
Latest (2022)
0.4%
Change on year
down 55.1%
World rank
99th
of 174 countries
All-time high
1.1%
in 2020
All-time low
0.4%
in 2022
Years of data
5
2018–2022
Chlorophyll-a anomaly, remote sensing in Heard Island and McDonald Islands, 2018–2022
Source: United Nations Statistics Division, SDG Global Database.
Analysis
Heard Island and McDonald Islands recorded 0.4% for chlorophyll-a anomaly, remote sensing in 2022. That is the lowest value across all 5 years on record.
That represents a change of down 55.1% on the previous year and down 52.9% over five years.
That places Heard Island and McDonald Islands 99th out of 174 countries with data for 2022, putting it in the middle of the range.
Chlorophyll-a anomaly, remote sensing in Heard Island and McDonald Islands, year by year
| Year | Value | Change |
|---|---|---|
| 2018 | 0.9% | — |
| 2019 | 0.7% | -20.0% |
| 2020 | 1.1% | +59.9% |
| 2021 | 0.9% | -18.0% |
| 2022 | 0.4% | -55.1% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 0.8% | 0.7% | 0.9% | 2 |
| 2020s | 0.8% | 0.4% | 1.1% | 3 |
Countries ranked near Heard Island and McDonald Islands
More development goals data for Heard Island and McDonald Islands
- Red List Index 0.933 (2025)
- Chlorophyll-a deviations, remote sensing 3.3% (2022)
Frequently asked questions
- What is chlorophyll-a anomaly, remote sensing in Heard Island and McDonald Islands?
- Chlorophyll-a anomaly, remote sensing in Heard Island and McDonald Islands was 0.4% in 2022, according to United Nations Statistics Division, SDG Global Database.
- What is the highest chlorophyll-a anomaly, remote sensing recorded in Heard Island and McDonald Islands?
- The highest recorded value was 1.1% in 2020.
- What is the lowest chlorophyll-a anomaly, remote sensing recorded in Heard Island and McDonald Islands?
- The lowest recorded value was 0.4% in 2022.
- How does Heard Island and McDonald Islands rank for chlorophyll-a anomaly, remote sensing?
- Heard Island and McDonald Islands ranks 99th out of 174 countries with data for 2022.
- Where does this Heard Island and McDonald Islands data come from?
- The figures come from United Nations Statistics Division, SDG Global Database, published as part of Chlorophyll-a anomaly, remote sensing (%). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 5 observations, free to reuse under UN SDG Global Database (open, attribution requested).