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UKCP09 Projections - Change in sea surface temperature (ºC) by 2085, compared to 1975, medium emissions scenario – spring

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UKCP09 is the name given to the UK Climate Projections. UKCP09 provides future climate projections for land and marine regions as well as observed (past) climate data for the UK.This layer is part of the Sea Surface and Seabed Temperature Change  sub-set of the UKCP09 marine and coastal projections up to 2090s using a medium emission scenario and, where appropriate, medium probability. It displays the change in sea surface temperature for Spring up to 2085 under a medium emissions scenario.

Summarising the anticipated changes around Scotland based on central estimate projections for 2080-90 using the medium emission scenario, sea surface temperature is projected to be between 2 and 2.5ºC warmer although in summer north and west of Scotland may be only 1ºC warmer. The autumn seems to be when most warming will be evident. At the sea bed, warming is similar as at the surface, but only on the shallow continental shelf. In the deep waters surrounding Scotland, off the shelf, temperatures are projected to change very little. There is quite a lot of both regional and seasonal variation in temperature change.

UKCP09 Projections - Percent change in annual mean precipitation, 2080s compared to 1970s, 50% probability level

Marine Scotland Information NMPi icon

UKCP09 is the name given to the UK Climate Projections. UKCP09 provides future climate projections for land and marine regions as well as observed (past) climate data for the UK.This layer is part of the Precipitation and Air temperature sub-set of the UKCP09 marine and coastal projections up to 2090s using a medium emission scenario and, where appropriate, medium probability. It displays the projected change in annual mean precipitation (50% probability level) to 2085 under a medium emissions scenario.

Summarising the anticipated changes around Scotland based on central estimate projections for 2080-90 using the medium emission scenarion for Precipitation (rainfall), over Scotland summers will become up to 20% drier, and winters 20% wetter. Overall, the central estimate is for the annual average rainfall to be about 10% less in the 2080s. There are some regional differences.

UKCP09 projections - Change (m) in significant wave height by 2085, compared to 1975, medium emissions scenario – spring

Marine Scotland Information NMPi icon

UKCP09 is the name given to the UK Climate Projections. UKCP09 provides future climate projections for land and marine regions as well as observed (past) climate data for the UK.This layer is part of the Sea Level / Storm surges, Tides and Wave Height Change sub-set of the UKCP09 marine and coastal projections up to 2090s using a medium emission scenario and, where appropriate, medium probability. It displays the change in significant wave height for spring to 2085 under a medium emissions scenario.

Summarising the anticipated changes around Scotland based on central estimate projections for 2080-90 using the medium emission scenario, significant wave heights north of Scotland will decrease by about 30 cm in the winter.  The other seasons have different patterns of change, although changes are quite small.

UKCP09 projections - Extreme water level (cm) - Present day baseline – 50-year return extreme water level above the highest astronomical tide (due to storm surge)

Marine Scotland Information NMPi icon

UKCP09 is the name given to the UK Climate Projections. UKCP09 provides future climate projections for land and marine regions as well as observed (past) climate data for the UK.This layer is part of the Sea Level / Storm surges, Tides and Wave Height Change sub-set of the UKCP09 marine and coastal projections up to 2090s using a medium emission scenario and, where appropriate, medium probability. It displays the present day baseline of exceedance of the Highest Astronomical Tides by 50-year return period storm surge

Summarising the anticipated changes around Scotland based on central estimate projections for 2080-90 using the medium emission scenario, Storm surges / tides current estimates do not suggest storminess will increase significantly over Scotland making the predictions of increases in storm surge heights over the next 100 years small. For example extreme storm surges with return periods of 2, 10, 20 and 50 years are between about 1 and 3 cm by 2095. There is some regional variation.  Currently, the highest storm surge that may occur in a 50-year period raises the sea surface by between 90 and 180 cm. The effect is least on the east coast and in Shetland, and greatest on the west coast. The central estimate predicts that by 2095, these extreme water levels will have changed very little.

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