Historical exposure to drought — Land soil moisture anomaly in Comoros
Comoros: Historical exposure to drought — Land soil moisture anomaly was -9.29 Percentage change in 2025. ◆ Volatile
Historical exposure to drought — Land soil moisture anomaly in Comoros, 1950–2025
Source: Organisation for Economic Co-operation and Development. Measured in Percentage change.
Analysis
The most recent figure for historical exposure to drought — land soil moisture anomaly in Comoros is -9.29 Percentage change, measured in 2025.
The figure is down 4,145.1% on the previous year and down 15.6% over ten years.
Over the whole period, historical exposure to drought — land soil moisture anomaly in Comoros peaked at 14.17 Percentage change in 1971 and was at its lowest, -12.04 Percentage change, in 1997.
Comoros ranks 147th of 191 countries on this measure, in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Historical exposure to drought — Land soil moisture anomaly in Comoros, year by year
| Year | Percentage change | Change |
|---|---|---|
| 1950 | 0.4873 Percentage change | — |
| 1951 | -10 Percentage change | -2152.0% |
| 1952 | 0.5352 Percentage change | -105.4% |
| 1953 | -5.81 Percentage change | -1186.1% |
| 1954 | 6.5 Percentage change | -211.8% |
| 1955 | -2.51 Percentage change | -138.6% |
| 1956 | -1.59 Percentage change | -36.9% |
| 1957 | 0.5319 Percentage change | -133.6% |
| 1958 | 3.53 Percentage change | +564.3% |
| 1959 | -0.0095 Percentage change | -100.3% |
| 1960 | 1.75 Percentage change | -18623.1% |
| 1961 | 9.74 Percentage change | +456.1% |
| 1962 | 4.33 Percentage change | -55.5% |
| 1963 | 9.81 Percentage change | +126.5% |
| 1964 | -0.1458 Percentage change | -101.5% |
| 1965 | 1.03 Percentage change | -804.2% |
| 1966 | -2.35 Percentage change | -329.1% |
| 1967 | 6.37 Percentage change | -370.8% |
| 1968 | 3.99 Percentage change | -37.4% |
| 1969 | 7.14 Percentage change | +78.9% |
| 1970 | 4.22 Percentage change | -40.9% |
| 1971 | 14.17 Percentage change | +235.9% |
| 1972 | 8.92 Percentage change | -37.1% |
| 1973 | 11.13 Percentage change | +24.8% |
| 1974 | 4.98 Percentage change | -55.3% |
| 1975 | 9.65 Percentage change | +93.8% |
| 1976 | 9.95 Percentage change | +3.1% |
| 1977 | 7.65 Percentage change | -23.1% |
| 1978 | 1.54 Percentage change | -79.8% |
| 1979 | 2.12 Percentage change | +37.7% |
| 1980 | 9.95 Percentage change | +368.9% |
| 1981 | 3.65 Percentage change | -63.3% |
| 1982 | 4.76 Percentage change | +30.4% |
| 1983 | 1.93 Percentage change | -59.4% |
| 1984 | 1.1 Percentage change | -43.0% |
| 1985 | 3.62 Percentage change | +229.5% |
| 1986 | 4.23 Percentage change | +16.7% |
| 1987 | 3.04 Percentage change | -28.2% |
| 1988 | -1.04 Percentage change | -134.2% |
| 1989 | 2.11 Percentage change | -303.4% |
| 1990 | 2.19 Percentage change | +3.5% |
| 1991 | 3.65 Percentage change | +66.8% |
| 1992 | -6.32 Percentage change | -273.1% |
| 1993 | -2.79 Percentage change | -55.8% |
| 1994 | -3.57 Percentage change | +27.9% |
| 1995 | -1.45 Percentage change | -59.2% |
| 1996 | -2.36 Percentage change | +62.5% |
| 1997 | -12.04 Percentage change | +409.5% |
| 1998 | -0.1742 Percentage change | -98.6% |
| 1999 | -0.1413 Percentage change | -18.9% |
| 2000 | -8.25 Percentage change | +5737.4% |
| 2001 | -1.44 Percentage change | -82.5% |
| 2002 | -2.06 Percentage change | +42.7% |
| 2003 | -2.98 Percentage change | +44.9% |
| 2004 | 6.35 Percentage change | -313.2% |
| 2005 | 1.63 Percentage change | -74.3% |
| 2006 | 6.11 Percentage change | +274.5% |
| 2007 | 2.5 Percentage change | -59.1% |
| 2008 | -0.9955 Percentage change | -139.8% |
| 2009 | 1.58 Percentage change | -259.0% |
| 2010 | -2.84 Percentage change | -279.6% |
| 2011 | -1.65 Percentage change | -41.8% |
| 2012 | 8.5 Percentage change | -613.6% |
| 2013 | 3.99 Percentage change | -53.1% |
| 2014 | -4.86 Percentage change | -221.9% |
| 2015 | -8.04 Percentage change | +65.2% |
| 2016 | 0.6854 Percentage change | -108.5% |
| 2017 | 6.52 Percentage change | +850.9% |
| 2018 | 3.33 Percentage change | -48.9% |
| 2019 | 2.86 Percentage change | -14.2% |
| 2020 | 2.16 Percentage change | -24.5% |
| 2021 | 2.66 Percentage change | +23.3% |
| 2022 | -5.99 Percentage change | -325.1% |
| 2023 | -6.48 Percentage change | +8.2% |
| 2024 | -0.2188 Percentage change | -96.6% |
| 2025 | -9.29 Percentage change | +4145.1% |
Comoros compared with similar countries
- Comoros's -9.29 Percentage change is below the median for lower middle income countries, which is -5.73 Percentage change, 1.6× the median. (41 countries reporting)
- Comoros's -9.29 Percentage change is below the median for Sub-Saharan Africa, which is -5.68 Percentage change, 1.6× the median. (38 countries reporting)
Biggest year-on-year movements
Years where Historical exposure to drought — Land soil moisture anomaly in Comoros 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 |
|---|---|---|---|
| 1960 | +18623.1% | -0.0095 Percentage change | 1.75 Percentage change |
| 2000 | -5737.4% | -0.1413 Percentage change | -8.25 Percentage change |
| 2025 | -4145.1% | -0.2188 Percentage change | -9.29 Percentage change |
| 1951 | -2152.0% | 0.4873 Percentage change | -10 Percentage change |
| 1953 | -1186.1% | 0.5352 Percentage change | -5.81 Percentage change |
| 2017 | +850.9% | 0.6854 Percentage change | 6.52 Percentage change |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | -0.833 Percentage change | -10 Percentage change | 6.5 Percentage change | 10 |
| 1960s | 4.17 Percentage change | -2.35 Percentage change | 9.81 Percentage change | 10 |
| 1970s | 7.43 Percentage change | 1.54 Percentage change | 14.17 Percentage change | 10 |
| 1980s | 3.33 Percentage change | -1.04 Percentage change | 9.95 Percentage change | 10 |
| 1990s | -2.3 Percentage change | -12.04 Percentage change | 3.65 Percentage change | 10 |
| 2000s | 0.2455 Percentage change | -8.25 Percentage change | 6.35 Percentage change | 10 |
| 2010s | 0.8481 Percentage change | -8.04 Percentage change | 8.5 Percentage change | 10 |
| 2020s | -2.86 Percentage change | -9.29 Percentage change | 2.66 Percentage change | 6 |
Countries ranked near Comoros
More environment data for Comoros
- Historical exposure to drought — Cropland soil moisture anomaly -6.9 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.264 °C (2025)
- Temperature change 1.59 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 1.33 % 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 % 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)
Frequently asked questions
- What is historical exposure to drought — land soil moisture anomaly in Comoros?
- Historical exposure to drought — land soil moisture anomaly in Comoros was -9.29 Percentage change in 2025, according to Organisation for Economic Co-operation and Development.
- What is the highest historical exposure to drought — land soil moisture anomaly recorded in Comoros?
- The highest recorded value was 14.17 Percentage change in 1971.
- What is the lowest historical exposure to drought — land soil moisture anomaly recorded in Comoros?
- The lowest recorded value was -12.04 Percentage change in 1997.
- How does Comoros rank for historical exposure to drought — land soil moisture anomaly?
- Comoros ranks 147th out of 191 countries with data for 2025.
- Is historical exposure to drought — land soil moisture anomaly rising or falling in Comoros?
- Over the last ten years it is down 15.6%. The long-run trend across the full record is volatile.
- Where does this Comoros data come from?
- The figures come from Organisation for Economic Co-operation and Development, published as part of Historical exposure to drought — Land soil moisture anomaly. Statizoid updates them automatically from the source API.
Download this data
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About this data
The dataset provides annual anomalies in land and cropland soil moisture content of the top soil layer (0 to 7 cm) compared to the reference period 1981-2010. Exposure indicators to drought have been prepared by the Organisation for Economic Co-operation and Development (OECD). Please see the working paper for a more complete description of the methods. The datasets span the period 1981-2024 and is the result of the use of a variety of geospatial data sources, including the ERA5-Land averaged monthly data of volumetric soil moisture and ESA CCI land cover data. Average anomalies have been calculated for both land and cropland exposure to drought. The dataset has a global coverage on a national level; on the sub-national TL2 level (i.e. large subnational regions) results are reported for all OECD countries as well as for Argentina, Brazil, China, India, Indonesia and South Africa. A number of aggregates are included: Euro area, European Union, Advanced economies, Emerging market economies, G7, G20, OECD, OECD Europe, OECD Asia Oceania, OECD Americas and the LAC region. Data source(s): Copernicus Climate Change Initiative land cover data and Copernicus Climate Data Store monthly soil moisture data based on the ERA5-Land reanalysis dataset. Contact: ENV.Stat@oecd.org