mattotcha, to Germany
@mattotcha@mastodon.social avatar

Mysterious Seafloor Pits May Be Made on Porpoise
https://eos.org/articles/mysterious-seafloor-pits-may-be-made-on-porpoise

GregCocks, to Geology
@GregCocks@techhub.social avatar

Reconnaissance Basement Geology and Tectonics of South Zealandia

https://doi.org/10.1029/2018TC005116 <-- shared paper

#

Free-air gravity map of South Zealandia
map / graphic - Topography of Zealandia, outlined in pink. The linear ridges running north-northeast (Colville to the west and Kermadec to the east, separated by the Havre Trough and Lau Basin) and southwest (the Resolution Ridge System) away from New Zealand are not considered part of Zealandia, nor are Australia (left), Vanuatu, or Fiji (top centre).
Seismic sections from locations in western South Zealandia.

GregCocks, to Geology
@GregCocks@techhub.social avatar

Evidence Of One Of The Largest Explosive Eruptions Ever Recorded In The Aegean Sea

https://phys.org/news/2024-01-evidence-largest-explosive-eruptions-aegean.html <-- shared technical article

https://doi.org/10.1038/s43247-023-01171-z <-- shared paper

#GIS #spatial #mapping #geology #structuralgeology #vulcanism #aegean #santorini #IODP #eruptions #greece #remotesensing #seafloor #hydrospatial #Christiana #Kolumbo #risk #hazard #volcano #engineeringgeology #mineralogy #pumice #sediment #history #Holocene

maps and cross sections - distribution and thickness of archaeos tuff from core-seismic integration
map - greece - Aegean - occurrences of the archaeos tuff
photo - beach in volcanic terrain - Santorini

GregCocks, to Economics
@GregCocks@techhub.social avatar

Continental Shelf Maps Could Add Egypt-Size Area To U.S. Territory – A Two-Decade Mapping Effort Yields Bounty Of Seafloor Data

https://www.science.org/content/article/continental-shelf-maps-could-add-egypt-size-area-u-s-territory <-- shared technical article

https://www.state.gov/the-us-ecs/ <-- US Dept. Of State Extended Continental Shelf (ECS) project page


@USGS @NOAA @StateDept

map - ECS - Northern Mariana Islands
map - ECS - Atlantic
photo montage - ECS project areas of exploration incl. ice breaker as a mapping vessel

GregCocks, to climate
@GregCocks@techhub.social avatar

Oceanography, Seafloor Mapping And Satellite Combine To Map World’s Strongest Current

https://www.csiro.au/en/news/All/News/2023/December/Oceanography-seafloor-mapping-and-satellite-combine-to-map-worlds-strongest-current <-- shared technical article


@CSIRO

photo - Crew bring CTD instrumentation rosette into RV Investigator.
model - map - FOCUS seafloor survey area with overlapping SWOT satellite path.
photo - Voyage co-chief scientists Benoit Legresy and Helen Phillips preparing the EM-APEX float instrumentation for deployment.

GregCocks, to climate
@GregCocks@techhub.social avatar

Widespread Deposition In A Coastal Bay Following Three Major 2017 Hurricanes (Irma, Jose, And Maria) [USVI]

https://doi.org/10.1038/s41598-019-43062-4 <-- shared paper

photo - Runoff in the waters near Magens Bay, St. Thomas, U.S. Virgin Islands, after the passage of Hurricane Irma.
A difference map of Coral Bay, St. John, USVI. The post-storm November 2017 survey was subtracted from the pre-storm August 2017 survey. Deposition is indicated by positive values (green, yellow, orange, red); erosion in negative values (blue). The largest area of deposition (outlined with a black dashed line) is characterized by deposition ranging from 20 to 60 cm. Coral mounds in central Johnson Bay have a general flute mark pattern of deposition toward Coral Harbor and erosion to seaward. Six sediment cores (white circles) were collected in November of 2017.
• Bottom Left: Eastern Puerto Rico and the US and British Virgin Islands with the 2017 hurricane tracks from Category 5 Hurricanes Irma and Maria. St. John, US Virgin Islands sits on a shelf ~60 meters below sea level (This map was generated using NOAA’s U.S. Virgin Islands 1 arc-second MHW Coastal Digital Elevation Model) • Top Left: St. John, US Virgin Islands showing the watershed source area (This map and the map shown to the right were generated using US Army Corps of Engineers US Virgin Islands Orthophoto Mosaic) • Right: Coral Bay, St. John with its protected waters and lands. Bathymetry shown was collected after the 2017 hurricane season in November and December of 2017.

GregCocks, to world
@GregCocks@techhub.social avatar

The GEBCO_2023 Grid - A Continuous Terrain Model Of The Global Oceans And Land

https://doi.org/10.5285/f98b053b-0cbc-6c23-e053-6c86abc0af7b <-- shared open data library access


GEBCO - General Bathymetric Chart of the Oceans | The Nippon Foundation

graphic / photo - ship collecting bathymetry data
map - global survey routes - GEBCO
image/jpeg

GregCocks, to geopolitics
@GregCocks@techhub.social avatar

Global Ocean Map Could Increase Safety, Give Early Tsunami Alerts

https://www.npr.org/2023/11/06/1198908501/mariana-trench-challenger-deep-ocean-map-tsunami <-- shared media article / radio show

#GIS #spatial #mapping #remotsensing #sonar #bathymetry #hydrospatial #ChallengerDeep #marine #seafloor #elevation #global #survey #marinegeography #appliedscience #appliedtechnology #pragamatic #seabed2030 #risk #hazard
#DawnWright #gebco #nipponfoundation #seabed2030
@Seabed2030 @DawnWright @NipponFoundation @GEBCO

dawn wright in a submersible
topobathy profile, seafloor
NOAA survey ship in Alaska

GregCocks, to Geology
@GregCocks@techhub.social avatar

Geoscientists Discover Massive Undersea Water Reservoir Off New Zealand’s Coast

https://www.sci.news/othersciences/geophysics/hikurangi-water-reservoir-12323.html <-- shared technical article

https://doi.org/10.1126/sciadv.adh0150 <-- shared paper

image/jpeg
image/jpeg
image/jpeg

gretathunberg, to random Swedish
@gretathunberg@mastodon.nu avatar

Climate strike week 268. #FridaysForFuture #ClimateStrike

solhog,

@gretathunberg
🙏 Wonderful to see you all . 🌊🦑- where the around 98% of ocean species live in, on, or just above the

Without a doubt, would cause a permanent loss of .

🎦 tip: on YouTube are series to learn more about the global movement to - all by Environmental JusticeFoundation

https://youtube.com/playlist?list=PLwP2bxq6Y2TojgnciQ5hDjAOg3OdAo170&si=CvDYiXOwhyNKqC6G

sflorg, to anime_titties
@sflorg@mastodon.social avatar

Gigatons of gas are trapped under the , and that’s a good thing. Around the coasts of the continents, where slopes sink down into the sea, tiny cages of ice trap gas, preventing it from escaping and bubbling up into the .

https://www.sflorg.com/2023/09/en09262302.html

anna_lillith, (edited ) to random
@anna_lillith@mas.to avatar

SMALL BUT MIGHTY: WHY ANTARCTIC KRILL ARE WORTH FIGHTING FOR

Experts call for action to protect vast areas of the and help safeguard the shrimp-like crustaceans at the base of the food web.

July 24, 2023 - by Tara Lohan

If you love , and a livable , then it might be time to stand up for Antarctic .

1/21

anna_lillith,
@anna_lillith@mas.to avatar

help support a of , but they also play a major role in by trapping in the — something that benefits even those of us that live far from its frigid waters.

While krill have been spotted thousands of feet deep on the , they also come up to the surface of the water to feed on that absorb .

5/21

greenaspen, to random
@greenaspen@mastodon.scot avatar

Please sign this to call for the protection of . This haven on the high is visited by over 5 million , but also , , and ! If the seafloor isn’t protected, they are all at risk! 🌊

https://widget.proca.app/d/naces/en/index.html?utm_source=share&utm_medium=webshare_api&utm_campaign=PUKslmOzNLRhhnNFp8qvjM5qjqHhWeewjg3XNRee7_w

CelloMomOnCars, to random
@CelloMomOnCars@mastodon.social avatar

"Using satellite measurements of its surface, researchers found that has been bouncing up and down, dramatically shifting its moorings in response to the tides. All this movement has carved a large cavern at the base of the and allowed warm water to regularly stretch beneath it. As the glacier lifts and migrates, the water can rush in for over a mile, thinning the ice by as much a 250 feet a year in some places."


https://www.washingtonpost.com/climate-environment/2023/05/08/sea-level-rise-greenland-glacier-melt/

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