Record-Breaking North Atlantic Ocean Temperatures Contribute To Extreme Marine Heatwaves [remote sensing]
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https://climate.copernicus.eu/record-breaking-north-atlantic-ocean-temperatures-contribute-extreme-marine-heatwaves <-- shared technical article
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#GIS #spatial #mapping #spatialanalysis #spatiotemporal #climatechange #marine #marineconservation #marinelife #heatwave #NorthAtlantic #MarineHeatwave #fishing #fisheries #fisheriesmanagement #economics #economy #foodsecurity #watertemperature #waterquality #ecosystem #health #ecosystemchange #disease #remotesensing #satellite #climate #Copernicus #ESA @esa

South-East Australia Marine Heatwave Forecast To Be Literally Off The Scale
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https://www.theguardian.com/australia-news/2023/aug/27/south-east-australia-marine-heatwave-forecast-to-be-literally-off-the-scale <-- shared media article
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#GIS #spatial #mapping #spatialanalysis #spatiotemporal #climatechange #marine #marineconservation #marinelife #heatwave #Australia #Tasmania #MarineHeatwave #fishing #fisheries #fisheriesmanagement #economics #economy #foodsecurity #watertemperature #waterquality #abalone #paua #salmon #oyster #ecosystem #health #ecosystemchange #disease

"South-east #Australia #marine #heatwave forecast to be literally off the scale - Patch of Tasman sea expected to warm over spring and summer to temperatures that risk significant losses to sea life

Australia’s south-east could be in for a marine heatwave that is literally off the scale, raising the prospect of significant losses in fishing and aquaculture.

The Bureau of Meteorology has forecast a patch of the Tasman Sea off Tasmania and Victoria could be at least 2.5C above average from September to February, and it could get hotter.

Oceanographer Grant Smith said the colour-coded scale the bureau uses to map forecast sea surface temperature anomalies stops at 2.5C. “We didn’t account for anomalies that high when we developed this ... it could be 3C, it could be 3.5C, but we can’t see how high it goes,” he said.
...
South-eastern Australia is a known climate change hotspot with its waters warming about four times faster than the global average."

https://www.theguardian.com/australia-news/2023/aug/27/south-east-australia-marine-heatwave-forecast-to-be-literally-off-the-scale

#TasmanSea #MarineHeatwave #OceanWarming #CoralReefs #CoralReef #SeaLife #ClimateCrisis #ClimateEmergency #Climate #Klima #Klimakrise #SST #SeaSurfaceTemperature #Oceans #Ocean #ClimateDiary #Tasmania

RT Mercator Ocean International
#MercatorOcean #MarineHeatwave Bulletin &amp; Forecast 4 August:
The marine heatwave in the #Mediterranean is easing. The tropical zone of the North #Atlantic continues to experience strong marine heatwave conditions with severe levels in the Gulf of Mexico
➡️https://www.mercator-ocean.eu/en/news/marine-heatwaves-europe-august-04-2023/

🐦🔗: https://n.respublicae.eu/MercatorOcean/status/1688481547375063040

A massive #MarineHeatWave has settled off the coast of the Pacific Northwest #PNW with SSTs 8F above normal. It is expected to persist at least through the end of summer.

Anyone remember The Blob of 2014-2016? https://en.wikipedia.org/wiki/The_Blob_(Pacific_Ocean)

As the oceans are heating to record levels this year
many sharks are beginning to change their behaviors — shifting where they live, what they eat and how they reproduce — which could cause cascading effects for the rest of the marine ecosystem.
#marineheatwave

https://www.cnn.com/2023/07/27/us/sharks-ocean-heat-climate-change/index.html

Half of the world’s ocean may experience #marineheatwave conditions by September, NOAA’s forecast predicts. Such unprecedentedly widespread extreme ocean temperatures can disrupt ocean ecosystems and could mean stronger hurricanes.

https://research.noaa.gov/2023/06/28/global-ocean-roiled-by-marine-heatwaves-with-more-on-the-way/

NOAA satellites have been tracking the steady climb in ocean temperatures since April, with unprecedented heat stress conditions in the Caribbean Basin as well as the Atlantic and Gulf of Mexico waters surrounding Florida. The current #marineheatwave is raising concerns about the potential impact on the fragile coral reefs.
https://www.nesdis.noaa.gov/news/rising-ocean-temps-raise-new-concerns-coral-reefs#:~:text=There%20have%20been%20eight%2C%20documented,Florida%2C%20as%20well%20as%20globally.

RT Mercator Ocean International
Mercator Ocean News: record-high sea surface temperatures in the North Atlantic, #MarineHeatwave, an associated drop in phytoplankton, and the arrival of El Niño and Costal El Niño conditions!
Read more➡️https://bit.ly/44cBhNX https://t.co/3nTuvlyeG6

🐦🔗: https://n.respublicae.eu/MercatorOcean/status/1676910758762823680

UK Suffers Marine Heatwave [earth observation]
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https://www.esa.int/ESA_Multimedia/Images/2023/06/UK_suffers_marine_heatwave <-- shared technical article
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#GIS #spatial #mapping #earthobservation #UK #Europe #remotesensing #satellite #copernicus #water #climatechange #marine #data #events #temperature #warming #heatwave #extremeweather #oceanography #ecosystems #extremeheat #marineheatwave #fisheries #aquaculture #global #seasurface #watertemperature #England #Britian
@ESA

Marine heatwave off the British and Irish coasts poses a serious ecological threat. Some areas show sea surface temperatures 5 degrees above the seasonal norm. There are several natural contributors to this excess heat, but climate change appears to be the main driver.

#SeaTemperatures #MarineHeatwave #ClimateChange

https://www.theguardian.com/environment/2023/jun/19/marine-heatwave-uk-irish-coasts-threat-oysters-fish-high-temperatures?CMP=Share_AndroidApp_Other

‘Unheard of’ #MarineHeatwave off #UK and #Irish coasts poses serious threat -

Sustained high temperatures over summer could trigger #MassMortality of #fish and #oysters, say scientists
https://www.theguardian.com/environment/2023/jun/19/marine-heatwave-uk-irish-coasts-threat-oysters-fish-high-temperatures #ClimateCrisis #Sustainabity #Environment #Wildlife

‘Unheard of’ #MarineHeatwave off #UK and Irish #coasts poses serious threat | #MarineLife | The Guardian

https://www.theguardian.com/environment/2023/jun/19/marine-heatwave-uk-irish-coasts-threat-oysters-fish-high-temperatures

#Ireland #BritishIsles #Environment #GlobalWarming #ClimateChange

On 21. April the #WMO (World Meteorological Organization) released their "State of the Global Climate 2022" annual report. There is no good news at all for the #climate; the #ClimateCrisis is in full-swing. If you've not read the report, you should. You can download it from a link here -
https://public.wmo.int/en/media/press-release/wmo-annual-report-highlights-continuous-advance-of-climate-change

Here are the "highlights" (lowlights) from the "Key Messages" section of the WMO report.

#GHG - Concentrations of the three main greenhouse gases – carbon dioxide #CO2, #methane and #NitrousOxide – reached record highs in 2021, the latest year for which consolidated global values are available (1984–2021).The annual increase in methane concentration from 2020 to 2021 was the highest on record. Real-time data from specific locations show that levels of the three #GreenhouseGases continued to increase in 2022.

#Ocean heating - Around 90% of the energy trapped in the climate system by greenhouse gases goes into the ocean. Ocean heat content, which measures this gain in energy, reached a new observed record high in 2022.

#MarineHeatwave - Despite continuing La Niña conditions, 58% of the ocean surface experienced at least one #marine #heatwave during 2022. In contrast, only 25% of the ocean surface experienced a marine cold spell.

#SeaLevelRise - Global mean sea level continued to rise in 2022, reaching a new record high for the satellite altimeter record (1993–2022). The rate of global mean sea level #MSL rise has doubled between the first decade of the satellite record (1993–2002, 2.27 mm per year) and the last (2013–2022, 4.62 mm per year).

#Glacier melting - In the hydrological year 2021/2022, a set of reference glaciers with long-term observations experienced an average mass balance of −1.18 metres water equivalent (m w.e.). This loss is much larger than the average over the last decade. Six of the ten most negative mass balance years on record (1950– 2022) occurred since 2015. The cumulative mass balance since 1970 amounts to more than −26 m w.e.

#Drought in #WetSeason, #food insecurity - In East #Africa, rainfall has been below average in five consecutive wet seasons, the longest such sequence in 40 years. As of August 2022, an estimated 37 million people faced acute food insecurity across the region, under the effects of the drought and other shocks.

#Flooding - Record-breaking rain in July and August led to extensive flooding in #Pakistan.There were at least 1 700 deaths, and 33 million people were affected, while almost 8 million people were displaced. Total damage and economic losses were assessed at US$ 30 billion.

#Heatwave - Record-breaking heatwaves affected #China and #Europe during the summer. In some areas, extreme heat was coupled with exceptionally dry conditions. Excess deaths associated with the heat in Europe exceeded 15 000 in total across #Spain, #Germany, the United Kingdom #UK#, France and #Portugal

#Klima #Klimakrise #UN

Ummm, this is not good: “Research scientists on ships along Antarctica’s west coast said their recent voyages have been marked by an eerily warm ocean and record-low sea ice coverage—extreme climate conditions, even compared to the big changes of recent decades, when the region warmed much faster than the global average.” 😳

#MarineHeatWave #Antarctica #SeaLevelRise #ClimateCrisis

https://insideclimatenews.org/news/12022023/antarctic-ice-shelves-marine-heatwave/

“Waters in Fiordland were warmer by up to 3C last year and as a result, up to 10% of marine sponges in Doubtful Sound have been lost.”

#ClimateChange #MarineHeatWave

The largest-ever sponge bleaching event on the southern coast of Aotearoa has been caused by a marine heat wave and has been connected to the death of many Fiordland sponges, scientists report.

https://www.stuff.co.nz/environment/climate-news/131123111/bleaching-death-of-sponges-in-fiordland-linked-to-marine-heat-waves

"In the most severe warming scenario, 100 per cent of sea stars died before the 13-day #heatwave had concluded. "

This is only one species, and one that happens to appeal to a lot of humans, but of course countless other marine species would suffer similarly.

#starfish #oceans #MarineHeatwave
https://www.newscientist.com/article/2355243-marine-heat-waves-could-wipe-out-all-common-sea-stars-by-2100/

Koll (now focusing on marine heatwaves): We are now observing unprecedented open ocean temperatures in the Bay of Bengal of 32-34°C! Wow 🥵! These warm temperatures fuel cyclones - which in turn can cause sustained (both cool & extreme warm) temperature anomalies over land, associated with stronger updraft.

#MarineHeatWave #GlobalWarming #BayOfBengal #IndianOcean #Cyclones

This is the #greatbarrierreef. The black bits are dead coral 🪸 covered by algae -- grim. Anthropogenic heating

#climate #auspol #australia #marineheatwave #cop27

Via @terryhughes on #twitter

Referenced link: https://phys.org/news/2022-07-elephant-reveal-features-blob-marine.html
Discuss on https://discu.eu/q/https://phys.org/news/2022-07-elephant-reveal-features-blob-marine.html

Originally posted by Phys.org / @physorg_com@twitter.com: https://twitter.com/physorg_com/status/1552694861681364992#m

Data from #elephantseals reveal new features of 'the Blob' #marineheatwave https://onlinelibrary.wiley.com/doi/10.1029/2021JC018356 https://phys.org/news/2022-07-elephant-reveal-features-blob-marine.html