Chlorophyll-a deviation from the global average in Portugal

Portugal: Chlorophyll-a deviation from the global average was 0.6% in 2022. ◆ Volatile

Latest (2022)
0.6%
Change on year
down 50.4%
World rank
119th
of 195 countries
All-time high
3.8%
in 2015
All-time low
0.5%
in 2008
Years of data
18
2005–2022

Chlorophyll-a deviation from the global average in Portugal, 2005–2022

012342005201320222005: 1.9 %2006: 0.67 %2007: 0.56 %2008: 0.5 %2009: 2 %2010: 0.91 %2011: 1.4 %2012: 0.73 %2013: 0.7 %2014: 3.5 %2015: 3.8 %2016: 1.8 %2017: 0.77 %2018: 1.6 %2019: 1 %2020: 0.72 %2021: 1.2 %2022: 0.61 %

Source: UN Statistics Division – processed by Our World in Data. Measured in %.

Analysis

Portugal recorded 0.6% for chlorophyll-a deviation from the global average in 2022.

Compared with earlier readings it is down 50.4% on the previous year and down 16.4% over ten years.

Over the whole period, chlorophyll-a deviation from the global average in Portugal peaked at 3.8% in 2015 and was at its lowest, 0.5%, in 2008.

Portugal ranks 119th of 195 countries on this measure, in the middle of the range.

The series is highly variable year to year, so single readings are best treated with caution.

Chlorophyll-a deviation from the global average in Portugal, year by year

Annual values for Chlorophyll-a deviation from the global average in Portugal, 2005 to 2022.
Year % Change
2005 1.9%
2006 0.7% -65.3%
2007 0.6% -16.4%
2008 0.5% -10.7%
2009 2.0% +294.0%
2010 0.9% -53.8%
2011 1.4% +48.4%
2012 0.7% -45.9%
2013 0.7% -4.1%
2014 3.5% +397.1%
2015 3.8% +7.8%
2016 1.8% -52.0%
2017 0.8% -57.2%
2018 1.6% +105.2%
2019 1.0% -34.8%
2020 0.7% -30.1%
2021 1.2% +70.8%
2022 0.6% -50.4%

Portugal compared with similar countries

  • Portugal's 0.6% is below the median for high income countries, which is 1.2%, 51% of the median. (71 countries reporting)
  • Portugal's 0.6% is below the median for Europe & Central Asia, which is 2.0%, 30% of the median. (37 countries reporting)

Biggest year-on-year movements

Years where Chlorophyll-a deviation from the global average in Portugal 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.

YearChange FromTo
2014 +397.1% 0.7% 3.5%

Averages by decade

DecadeAverage LowestHighest Years
2000s 1.1% 0.5% 2.0% 5
2010s 1.6% 0.7% 3.8% 10
2020s 0.9% 0.6% 1.2% 3

Countries ranked near Portugal

  1. 116 Palestine 1.0% compare
  2. 117 Colombia 0.9% compare
  3. 118 Albania 0.6% compare
  4. 120 Thailand 0.6% compare
  5. 121 Tonga 0.6% compare
  6. 122 Cambodia 0.5% compare

See the full ranking of 195 places →

More reference data data for Portugal

All data for Portugal →

Frequently asked questions

What is chlorophyll-a deviation from the global average in Portugal?
Chlorophyll-a deviation from the global average in Portugal was 0.6% in 2022, according to UN Statistics Division – processed by Our World in Data.
What is the highest chlorophyll-a deviation from the global average recorded in Portugal?
The highest recorded value was 3.8% in 2015.
What is the lowest chlorophyll-a deviation from the global average recorded in Portugal?
The lowest recorded value was 0.5% in 2008.
How does Portugal rank for chlorophyll-a deviation from the global average?
Portugal ranks 119th out of 195 countries with data for 2022.
Is chlorophyll-a deviation from the global average rising or falling in Portugal?
Over the last ten years it is down 16.4%. The long-run trend across the full record is volatile.
Where does this Portugal data come from?
The figures come from UN Statistics Division – processed by Our World in Data, published as part of Chlorophyll-a deviation from the global average. Statizoid updates them automatically from the source API.

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Chlorophyll-a deviation from the global average in Portugal. Statizoid, drawing on UN Statistics Division – processed by Our World in Data. Retrieved 23 September 2026, from https://reference.statizoid.com/stat/chlorophyll-a-deviation-from-the-global-average/portugal/

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About this data

Indicator
Chlorophyll-a deviation from the global average
Unit
%
Source
UN Statistics Division – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
195 places, 3,445 data points, 2005–2022
Last refreshed

Chlorophyll-a deviations, remote sensing (%).