GregCocks, to NewZealand
@GregCocks@techhub.social avatar

Lake Wānaka Mapped In Exquisite Detail [topobathy, New Zealand]

https://niwa.co.nz/news/lake-wanaka-mapped-exquisite-detail <-- shared technical article


@niwa_nz

photo - Lake Wanaka, New Zealand
Close-up image of bathymetry data for the southern part of Lake Wānaka.
photo - Lake Wānaka mapping project team onboard RV Rukuwai II with multibeam echosounder attached to the bow of the research vessel.

mattotcha, to random
@mattotcha@mastodon.social avatar

Off to a good start . . .
New Seafloor Map Only 25% Done, with 6 Years to Go
https://eos.org/articles/new-seafloor-map-only-25-done-with-6-years-to-go

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 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

#GIS #spatial #mapping #ECS #ExtendedContinentalShelf #remotesensing #hydrospatial #bathymetry #bathy #topobathy #sonar #seafloor #economics #terrority #underseamapping #geology #biology #resources #energy #continental #continentalshelf #governmentinitiative #biodiversity #exploration #habitat #geoscience #minerals #submarine #mudslides #tsunami #sediments #deposition #seafloormapping #marine #ocean #multibeam #3d #sampling
@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

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

#GIS #spatial #mapping #opendata #world #global #seafloor #GEBCO #NipponFoundation #bathymetry #remotesensing #topobathy #hydrospatial #ocean #grid #raster #survey #topography #elevation #terrainmodel #GlobalMapper #gischat #crowdsourced #seabed2030
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



@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

GregCocks, to opensource
@GregCocks@techhub.social avatar

SaTSeaD - Satellite Triangulated Sea Depth Open-Source Bathymetry Module For NASA Ames Stereo Pipeline

https://doi.org/10.3390/rs15163950 <-- shared paper

image/jpeg
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alan, (edited ) to Dragonlance
@alan@subdued.social avatar

Beautiful of the of the made by Gerry Gabrisch, GIS Manager at . Created completely with the software program (@qgis).

Original post: https://www.linkedin.com/posts/gerry-gabrisch-gisp-2aa3263b_linkedin-often-features-memes-that-mock-qgis-activity-7102411473771003904-b8A1

stib, to random
@stib@aus.social avatar

Pro tip for anyone who happens to be looking for high resolution #bathymetry and #topography map images. Nasa's publicly available images top out at 3.6k pixels wide, which might not be enough for say a detailed 3D model. But if you go to the web page where they're available e.g. https://neo.gsfc.nasa.gov/view.php?datasetId=GEBCO_BATHY and click one of the download links, it actually renders the data live. So if you hack the URL you can dial up any* resolution you want.
The URL for the bathymetry data for example ends with &amp;format=PNG&amp;width=3600&amp;height=1800. If you want an image with say, 10 times the resolution, just add a zero to both dimensions.
*Not sure what the upper limit is, or what resolution the original data set is. Don't abuse it or it might get taken away.
#NoteForFutureSelf #blender3d #dataVis

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