Tom Rippeth
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Articles by Tom Rippeth
Chlorophyll extremes during a surface marine heatwave in a seasonally stratified shelf sea
Abstract Marine heatwaves are increasing in frequency and intensity globally against a background of long-term climate warming, yet their impacts on subsurface biogeochemistry in temperate shelf seas remain poorly constrained. Here, we present high-resolution in situ observations of chlorophyll during a Category IV marine heatwave in June 2023, collected using an autonomous ocean glider in a seasonally stratified shelf sea.
Climate change is depleting deep sea oxygen, but tides are helping to keep the ocean healthy Original
Without sufficient oxygen to respire properly, fish experience the same problems as high-altitude mountaineers. Even relatively small oxygen deficits mean they become sluggish, their reproduction is affected and their growth is stunted. That’s one reason an oxygen deficit deep in the oceans is a problem – and climate change is making it worse.
The deepwater oxygen deficit in stratified shallow seas is mediated by diapycnal mixing - Nature Communications
Abstract Seasonally stratified shelf seas are amongst the most biologically productive on the planet. A consequence is that the deeper waters can become oxygen deficient in late summer. Predictions suggest global warming will accelerate this deficiency. Here we integrate turbulence timeseries with vertical profiles of water column properties from a seasonal stratified shelf sea to estimate oxygen and biogeochemical fluxes.
Something strange is happening in the UK sea
This article was added by the user . TheWorldNews is not responsible for the content of the platform. One of the most severe marine heatwaves on the planet is taking place in the shallow seas around the UK and Ireland. That’s according to the US National Oceanic and Atmospheric Administration (NOAA), which has labelled this a ‘Category 4’ heatwave. Rarely used outside of the tropics, a cat 4 heatwave means ‘extreme’ heat.
What’s going on with the ‘extreme’ marine heatwave around Ireland and Britain?
Bangor University’s Prof Tom Rippeth explains the causes and impacts of the current ‘extreme’ heatwave in the seas around Ireland and the UK. One of the most severe marine heatwaves on the planet is taking place in the shallow seas around the UK and Ireland. That’s according to the US National Oceanic and Atmospheric Administration (NOAA), which has labelled this a Category 4 heatwave. Rarely used outside of the tropics, a cat 4 heatwave means “extreme” heat.
An 'extreme' heatwave has hit the seas around the UK and Ireland - here's what's going on
One of the most severe marine heatwaves on the planet is taking place in the shallow seas around the UK and Ireland. That’s according to the US National Oceanic and Atmospheric Administration (NOAA), which has labelled this a “Category 4” heatwave. Rarely used outside of the tropics, a cat 4 heatwave means “extreme” heat. Marine heatwaves are classified as “prolonged periods of anomalously high sea surface temperature”, when compared to the long-term average for that time of year.
An 'extreme' heatwave has hit the seas around the UK and Ireland – here's what's going on Original
One of the most severe marine heatwaves on the planet is taking place in the shallow seas around the UK and Ireland. That’s according to the US National Oceanic and Atmospheric Administration (NOAA), which has labelled this a “Category 4” heatwave. Rarely used outside of the tropics, a cat 4 heatwave means “extreme” heat. Marine heatwaves are classified as “prolonged periods of anomalously high sea surface temperature”, when compared to the long-term average for that time of year.
Wind Turbines Can Breathe New Life into Warming
Ben Lincoln, Robert Dorrell, Tom Rippeth March 15, 2022 Offshore wind is set to move further and further from shore, as demand for renewable energy grows and new floating turbine technology makes deep-water expansion possible. However, for the first time, large areas of the UK continental shelf now open for development are “seasonally stratified”. David Attenborough has described these seasonal seas as some of the most biologically productive on the planet.
Wind turbines could secretly reverse an unexpected effect of climate change - here's how
Offshore wind is set to move further and further from shore, as demand for renewable energy grows and new floating turbine technology makes deep-water expansion possible. However, for the first time, large areas of the U.K. continental shelf now open for development are “seasonally stratified.” David Attenborough has described these seasonal seas as some of the most biologically productive on the planet.
Wind turbines can breathe new life into our warming seas Original
Even ‘floating’ wind turbines still have large underwater foundations to keep things stable. Credit: Dorrell et al (2022), Author provided ,Offshore wind is set to move further and further from shore, as demand for renewable energy grows and new floating turbine technology makes deep-water expansion possible.
Floating Wind Turbines May Help Reverse Some Effects Of Climate Change
(The Conversation)–Offshore wind is set to move further and further from shore, as demand for renewable energy grows and new floating turbine technology makes deep-water expansion possible. However, for the first time, large areas of the UK continental shelf now open for development are “seasonally stratified”. David Attenborough has described these seasonal seas as some of the most biologically productive on the planet.
Wind turbines can breathe new life into our warming seas
Offshore wind is set to move further and further from shore, as demand for renewable energy grows and new floating turbine technology makes deep-water expansion possible. However, for the first time, large areas of the UK continental shelf now open for development are "seasonally stratified".
Intensification of Near‐Surface Currents and Shear in the Eastern Arctic Ocean
Abstract A 15‐year (2004–2018) record of mooring observations from the upper 50 m of the ocean in the eastern Eurasian Basin reveals increased current speeds and vertical shear, associated with an increasing coupling between wind, ice, and the upper ocean over 2004–2018, particularly in summer.
Arctic sea ice is being thinned not just by warm air, but also by ever-warmer waters from below
Each September, scientists like me look out for the point when the Arctic’s meagre summer fizzles out and sea ice begins to grow once more. This point is known as the annual sea ice minimum extent. It has declined consistently over the past 15 years, and 2019 was the second-lowest after 2012 in 42 years of continuous satellite records. This year’s minimum is imminent, and there is already even less ice coverage than last year. What is causing this decline in minimum sea ice extent?
Arctic sea ice is being increasingly melted from below by warming Atlantic water
Each September, scientists like me look out for the point when the Arctic’s meagre summer fizzles out and sea ice begins to grow once more. This point is known as the annual sea ice minimum extent. It has declined consistently over the past 15 years, and 2019 was the second lowest after 2012 in 42 years of continuous satellite records. This year’s minimum is imminent, and there is already even less ice coverage than last year. What’s causing this decline in minimum sea ice extent?
Atlantic Ocean's heat is warming Artic twice as fast as rest of the world
The seasonal sea-ice retreat across the Arctic Ocean is perhaps one of the most conspicuous indicators of climate change. In September 2012, a new record was set for the time that we have been tracking sea ice with satellites: the minimum sea ice extent was some 50% below the climatic average for that month. Four years on, and the September 2016 record tied with 2007 for the second lowest sea ice extent since measurements began in 1978.
Heat from the Atlantic Ocean is melting Arctic sea ice further eastwards than ever before
The seasonal sea-ice retreat across the Arctic Ocean is perhaps one of the most conspicuous indicators of climate change. In September 2012, a new record was set for the time that we have been tracking sea ice with satellites: the minimum sea ice extent was some 50% below the climatic average for that month. Four years on, and the September 2016 record tied with 2007 for the second lowest sea ice extent since measurements began in 1978.
Link found between retreating sea ice and extreme weather conditions
The seasonal sea-ice retreat across the Arctic Ocean is perhaps one of the most conspicuous indicators of climate change. In September 2012, a new record was set for the time that we have been tracking sea ice with satellites: the minimum sea ice extent was some 50% below the climatic average for that month. Four years on, and the September 2016 record tied with 2007 for the second lowest sea ice extent since measurements began in 1978.
Potential 'hot-spots' for sea ice melting identified in the Arctic Ocean
The Arctic region is warming up twice as fast as the rest of the planet. This rapid temperature increase has caused record-breaking seasonal retreat in Arctic Ocean sea ice in recent years. The latest minimum recorded was set in September 2012, while the sea ice cover in September 2016 tied with 2007 for the second lowest extent ever recorded. And it’s not just coverage that’s the problem, sea ice is also thinning, with a current average thickness of 3.2m in the Central Arctic.
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