Spent a good part of this morning being mesmerized by the waves.

There was a High Surf Advisory for breaking waves of 17 to 22 feet with an increased risk for sneaker waves and rip currents — so I knew it was going to be good day for wave-watching.

#today #ocean

Spent a good part of this morning being mesmerized by the waves.

There was a High Surf Advisory for breaking waves of 17 to 22 feet with an increased risk for sneaker waves and rip currents — so I knew it was going to be good day for wave-watching.

#today #ocean

#Oxygen discovery defies knowledge of the deep ocean

Victoria Gill, Science correspondent, BBC
July 22, 2024

"Scientists have discovered ' #DarkOxygen' being produced in the #DeepOcean, apparently by lumps of metal on the #seafloor.

"About half the oxygen we breathe comes from the #ocean. But, before this discovery, it was understood that it was made by marine plants photosynthesising - something that requires sunlight.

"Here, at depths of 5km, where no sunlight can penetrate, the oxygen appears to be produced by naturally occurring metallic ' #nodules' which split seawater - H2O - into hydrogen and oxygen.

"Several #mining companies have plans to collect these nodules, which marine scientists fear could disrupt the newly discovered process - and damage any marine life that depends on the oxygen they make.

"'I first saw this in 2013 - an enormous amount of oxygen being produced at the seafloor in complete darkness,' explains lead researcher Prof Andrew Sweetman from the Scottish Association for Marine Science. 'I just ignored it, because I’d been taught - you only get oxygen through #photosynthesis.

"'Eventually, I realised that for years I’d been ignoring this potentially huge discovery,' he told BBC News.

"He and his colleagues carried out their research in an area of the deep sea between #Hawaii and #Mexico - part of a vast swathe of seafloor that is covered with these metal nodules. The nodules form when dissolved metals in seawater collect on fragments of shell - or other debris. It's a process that takes millions of years.

"And because these nodules contain metals like #lithium, #cobalt and #copper - all of which are needed to make batteries - many mining companies are developing technology to collect them and bring them to the surface.

"But Prof Sweetman says the dark oxygen they make could also support life on the seafloor [and life on Earth!]. And his discovery, published in the journal Nature Geoscience, raises new concerns about the risks of proposed deep-sea mining ventures.

"The scientists worked out that the metal nodules are able to make oxygen precisely because they act like batteries."

Read more:
https://www.bbc.com/news/articles/c728ven2v9eo

#OceansAreLife #WaterIsLife #NoDeepSeaMining #DeepSeaMining #DeepSeaMiningMoratorium #Greed #DeepGreen #Oxygen #GerardBarron #DeepSeaLife #Extinction #DeadPlanet

🌎💓 For over 60 years, seismologists have been tracking a mysterious rhythmic pulse that ripples through the #Earth's crust every 26 seconds.

Researchers have traced the sound to a specific spot off the coast of #Africa, but they still do not know if it is caused by crashing #ocean #waves or a hidden #underwater #volcano.

👉 https://www.popularmechanics.com/science/environment/a70259763/why-does-earth-pulsate-every-26-seconds/

#geology #science #STEM #earthquake #oceanography #volcanology #Nature #Curiosity

Arc-eye Hawkfish at an #Oahu #Hawaii #reef . Your #sealife #photooftheday

Prints available - DM me. #fish #coral #Friday #creature #ocean #pacificocean #marinelife #animals #nature #wildlife #outdoors #explore #environment #earth #photo #photography #scuba #discover #underwater #art #critter #KeepItReal

Arc-eye Hawkfish at an #Oahu #Hawaii #reef . Your #sealife #photooftheday

Prints available - DM me. #fish #coral #Friday #creature #ocean #pacificocean #marinelife #animals #nature #wildlife #outdoors #explore #environment #earth #photo #photography #scuba #discover #underwater #art #critter #KeepItReal

🌎💓 For over 60 years, seismologists have been tracking a mysterious rhythmic pulse that ripples through the #Earth's crust every 26 seconds.

Researchers have traced the sound to a specific spot off the coast of #Africa, but they still do not know if it is caused by crashing #ocean #waves or a hidden #underwater #volcano.

👉 https://www.popularmechanics.com/science/environment/a70259763/why-does-earth-pulsate-every-26-seconds/

#geology #science #STEM #earthquake #oceanography #volcanology #Nature #Curiosity

📢 We are hiring ! #fediHire

My group is looking for 2️⃣ #research scientists in the field of #satellite 🛰️ remote sensing and data processing, to work in #Norway

One position (Tromsø or Oslo) will mostly be about #climate #SeaIce remote sensing from passive microwave sensors:
https://www.jobbnorge.no/en/available-jobs/job/294200/researcher

The other position (Bergen or Oslo) is mostly about #Ocean remote sensing from Synthetic Aperture Radar (SAR) missions:
https://www.jobbnorge.no/en/available-jobs/job/294199/researcher-scientific-programmer

Both are 2-year positions, in the context of several projects we have with the #EuropeanSpaceAgency.

Please help and boost 🙌 .

@PolarBremen @Ruth_Mottram @SigneAaboe

We've had some pretty nice waves on our beaches here in Half Moon Bay recently, with more forecast for later this week.

#MeerMittwoch #SeaWednesday #WavyWednesday #ocean

Redwood National and State Parks this morning. Learn more at https://www.nps.gov/redw/index.htm and #nps #nationalparks #publiclands #photography #forest #trees #sun #winter Image credit Kurt Angersbach / Westernlabs #california #redwood #colors #landscapephotography #driftwood #coast #ocean #research #beach #waves

Redwood National and State Parks this morning. Learn more at https://www.nps.gov/redw/index.htm and #nps #nationalparks #publiclands #photography #forest #trees #sun #winter Image credit Kurt Angersbach / Westernlabs #california #redwood #colors #landscapephotography #driftwood #coast #ocean #research #beach #waves

We've had some pretty nice waves on our beaches here in Half Moon Bay recently, with more forecast for later this week.

#MeerMittwoch #SeaWednesday #WavyWednesday #ocean

Nudibranch Hypselodoris Bullockii
#gili #giliislands #lombok #diving #scuba #trawangan #diveandstay #giliair #pets #ocean #sealife #marinelife #padi #seaslug #nudibranch

Nudibranch Hypselodoris Bullockii
#gili #giliislands #lombok #diving #scuba #trawangan #diveandstay #giliair #pets #ocean #sealife #marinelife #padi #seaslug #nudibranch

Yesterday, I went to photograph nearly full Moon. At first, it looked like the distant clouds would prevent it from showing but they turned out to be high, loose, and transparent. I really loved how the seagulls helped me with the framing too.

#seascape #sea #ocean #moon #fullmoon #sunset #landscape #landscapePhotography #nature #photo #photomonday #FotoMontag #fotografie

Yesterday, I went to photograph nearly full Moon. At first, it looked like the distant clouds would prevent it from showing but they turned out to be high, loose, and transparent. I really loved how the seagulls helped me with the framing too.

#seascape #sea #ocean #moon #fullmoon #sunset #landscape #landscapePhotography #nature #photo #photomonday #FotoMontag #fotografie

The ocean remembers light.

Bioluminescent dinoflagellates — single-celled organisms that have been doing this for millions of years — painting the shoreline electric blue with every wave. Each crash triggers billions of tiny chemical reactions, a galaxy washing ashore.

#AIVideo #Bioluminescence #Ocean #Nature