Survey Systems Verification And Calibration In The HydroSpatial Domain [overview / tutorial]
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https://ihr.iho.int/articles/survey-systems-verification-and-calibration-in-the-hydrospatial-domain/ <-- shared technical article/paper
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#GIS #spatial #mapping #marine #seafloor #bathymetry #dataintegrity #hydrographic #surveying #hydrospatial #survey #MBES #patchtest #USBL #calibration #verification #calibration #alignment #accuracy #precision #technicalreport #standards #fieldwork #professionalpractices #navigation #tutorial #learning #education #selflearning #methodologies #GNSS #IMU #gyro #MBES #sonar #remotesensing ##offshore #surveying #usecase #dataintegrity #ManualOfHydrography
@InternationalHydrographyOrganisation

Quantitative Validation Of Icesat-2 ATL24 In Shallow Marine Environments Using Reference-Grade Bathymetric Data
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https://doi.org/10.1080/01490419.2025.2608329 <-- shared paper
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https://doi.org/10.1029/2023EA003270 <-- shared paper
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#GIS #spatial #mapping #satellite #remotesensing #earthobservation #ICESat2 #ATL24 #photonreturn #bathymetry #multibeam #echosounder #shallowwater #seafloor # mapping #validation #depth #elevation #coast #coastal #LiDAR #MudjimbaIsland #Australia #Whangaroa #harbour #NewZea;and #corrleation #BallyteigeBay #Ireland #bathymetric #profile #QAQC #MBES #sonar #acoustic #fedscience #opendata #publicgood #publicservice #engineering #water #hydrology #marine #ocean #hydrospatial
@nasa

Compendium Of Seabed Mapping Use Cases | HE Nippon Foundation - Gebco #Seabed2030 Project
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https://seabed2030.org/wp-content/uploads/2024/10/SEABED-2030-Compendium-of-Seabed-Mapping-Use-Cases-031024.pdf <-- shared presentation
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#GIS #spatial #mapping #remotesensing #earthobservation #spatialanalysis #oceanfloor #seafloor #marine #ocean #global #usecase #cable #subsubseacable #planning #design #engineering #routing #risk #hazard #infrastructure #trench #slope #seamount #cost #costsavings #benefit #economics #usecase #seabed #opendata #platforms #sensors #survey #dataprocessing #management #publication #bigdata #acquisition #coverage #hydrospatial #hydrographic #coast #coastal #development #spatialplanning #maritime #socioeconomic #sovereignty #navigation #nauticial #charting #charts #marinecharts #depth #crowdsourcing #3D #basemap #tsunami #stormsurge #extremeweather #model #modeling #landfall #impact #humanimpact #propagation #climatechange #ocean #biodiversity #ecosystems #reef #bathymetry #government #policy #pollution #blueeconomy #industry #NGO #academia #research
@Seabed2030

Light Detection And Ranging Of Natural Systems
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https://doi.org/10.1038/s43586-025-00446-3 <-- shared paper
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['primer'/'tutorial'/overview]
#GIS #spatial #mapping #remotesensing #explanation #tutorial #overview #primer #LiDAR #laserscanning #survey #pointcloud #spatialanalysis #airborne #satellite #usecase #vegetation #forest #forestry #resource #wildfire #fuel #elevation #topography #bathymetry #glaciology #glacier #workflow #naturalsystems #applications #algorithms #sensors #geomorphometry #geomorphology #drone #UAV #water #hydrology #groundbased #instrumentation #spatiotemporal #landsurface #landcover

#30DayMapChallenge Day 28: Black

On this Black Friday, I found today’s theme in the depths of the Black Sea 🌊.

Using the OpenTopography DEM Downloader, I grabbed the Global Bathymetry SRTM15+ V2.1 dataset, calculated 100 m contours, and applied the Tanaka method with a style from the QGIS Hub plugin. 🎨

#QGIS #Cartography #OpenData #Bathymetry #BlackSea #GIS #Mapping

@enigma Solch Streifen hier in google maps sind übrigens nicht "echt". Das sind Artefakte der Schifffahrtsrouten. Da misst man eben genauer_
https://www.google.com/maps/place/Los+Santos+Province,+Panama/@5.7165931,-86.094954,331407m/data=!3m1!1e3!4m6!3m5!1s0x8fad8f544ae54379:0x2a58179fa0ed53fd!8m2!3d7.5909302!4d-80.365865!16zL20vMDJzc2Zx?entry=ttu&g_ep=EgoyMDI1MTEyMy4xIKXMDSoASAFQAw%3D%3D

#Bathymetry

@enigma Und dieser Globus ohne Wasser ist auch sehr besonders. Etwas grob, aber faszinierend.

https://mprove.de/chrono?ll=0.93887,157.86938&q=0.93887,164.87129&z=3.04&t=21&c=lbathy,m

#bathymetry

@enigma Zauberhaft!

/BTW #Bathymetry im Chronoscope >> https://mprove.de/chrono?ll=2.18031,-21.87805&q=-62.75472,-56.76191&z=1.19&d=0&c=lbathy,m,k

Day 20 of #30DayMapChallenge: Water 🌊
Here’s the Mediterranean Sea in stunning detail using the ETOPO1 global relief model — deep trenches, shallow shelves, and surrounding terrain all in one map.

R + terra + ggplot2 💙

#RStats #GIS #Bathymetry #Mediterranean #DataViz #Geospatial

#30DayMapChallenge Day 20: Water
Arrieta. #Sopela. Learning #bathymetry. After calculating the #Stumpf ratio using #Sentinel2 images, we compared it with the bathymetry layers (1 & 5 m) available at #GeoEuskadi.
A lot to process, a lot more to learn
#rstats #RemoteSensing #GIS #EarthObservation

A detailed bathymetry model of Lake Victoria 🗺️🌊
Dataset source: Harvard Dataverse (Remastered Version)

Exploring the depths of Africa’s largest lake across 🇹🇿 🇰🇪 🇺🇬

#Victoria #LakeVictoria #Tanzania #Kenya #Uganda #EastAfrica #Africa #GIS #Geospatial #Cartography #DataVisualization #Dataviz #Bathymetry #b3d #Map

In 3 days, @esri webinar: Explore #ArcGIS #Bathymetry for Offshore #Energy https://tinyurl.com/587wf7z2

#seafloor #3D #spatial #analysis #imagery #GIS #esri #mapping #GISchat #geospatial @esrifederalgovt @arcgispro @esritraining @urisa

Intense Groundwater Flow Destabilizes Ice In North America's Great Lakes, Simulations Show
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https://phys.org/news/2025-09-intense-groundwater-destabilizes-ice-north.html <-- shared technical article
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https://doi.org/10.1029/2025WR040581 <-- shared paper
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"KEY POINTS:
• Groundwater inflow enhances winter lake ice thickness by stabilizing the water column and reducing vertical mixing
• Ice responses to groundwater are strongest in coastal zones due to higher flux and shallow bathymetry
• Including groundwater in coupled models improves understanding of ice formation and winter lake processes…”
#water #hydrology #groundwater #flux #flow #GreatLakes #USA #LakeMichigan #LakeHuron #ice #climatechange #model #modeling #shoreline #coast #lakeice #melt #hydrodynamic #spatialanalysis #spatiotemporal #thermal #stratification #winter #bathymetry #coupledmodels #processes

Still on my #Bathymetry bullshit. In my ocean currents #Blender scene I'm using #Nasa bathymetry data and #GeometryNodes to drive the elevation of the earth model. Because the earth is essentially a very smooth sphere I have to greatly exaggerate the depth, with a non-linear gradient between the underwater regions and the coastal shelf. I was doing it with a Float Curve node, but I wanted to be able to easily tweak the parameters of where the points on the curve were.
Annoyingly there's no access to the points in a float curve, as node inputs or even with a #python data path that I could script. So I rigged up this node group to mimic the action of the float curve. I use a couple of Map Range nodes for each part of the line and switch between their output. It works well for a linear curve, I'm going to have to investigate whether the smooth interpolation in the Map Range node will let me achieve the same results as a float curve, and maybe automate it a bit.
#b3d #ScientificIllustration

Combining physical and artificial intelligence models to improve satellite-derived bathymetric (SDB) mapping in shallow areas compared to conventional methods #bathymetry

https://www.sciencedirect.com/science/article/pii/S1574954125003371

Mid-June we spent 2 days on a #Fieldtrip to the #Maade #River in #Wilhelmshaven as part of our #METAscales project
Day 1: Installed two new #SEBA gauges to track water level & conductivity—crucial in our sluice-and-pumping-station-drained catchment. 🔧 🌊 🛠️
Day 2: Gained hands-on experience with our boats & ADCP for bathymetry surveys. 🚤💧🔍
Learn more about METAscales https://lnk.tu-bs.de/MBdwv8
#BMBF #Equipment #Drainage #Bathymetry”

The seafloor around the remote British Overseas Territory of #AscensionIsland just got mapped, some of it for the first time ever...Looking at this cheerful looking crew in shorts , I wonder what it would be like to be one of the Ascension Island Government Conservation Team. https://gogeomatics.ca/seeing-what-lies-beneath-seafloor-mapping-in-a-marine-protected-area/ #bathymetry #marineReserve

European Geological Open Data (Map And Data) From The European Geological Data Infrastructure (EGDI)
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https://www.europe-geology.eu/data-tools/map-viewer/ <-- shared link to map viewer
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#geology #geosciences #earthsciences #data #spatialdata #criticalminerals #mining #geothermal #netzero #groundwater #carboncapture #ccs #GIS #spatial #mapping #opendata #webmapping #mapportal #Europe #EGDI #framework #GSEU #resources #naturalresources #opendata #water #naturalresources #geomorphology #bathymetry #geophysics #topobathy #remotesensing #earthobservation #waterresources

Surfing bathymetry refers to the underwater topography that shapes how waves break, including reefs, sandbars, and underwater canyons. The ideal bathymetry funnels wave energy toward shallow areas in a way that creates clean, rideable waves.

Thanks for sharing, Olivia S.!

#science #sciencefacts #bathymetry #surfing #surfingbathymetry

Coastal Environments - LiDAR Mapping of Copper Tailings Impacts, Particle Retention of Copper, Leaching, and Toxicity
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https://doi.org/10.3390/rs17050922 <-- shared paper
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#GIS #spatial #mapping #remotesensing #earthobservation #coastalenvironment #coast #coastal #mine #tailings #minetailings #GlobalTailingsManagementStandard #Keweenaw #LiDAR #bathymetry #topobathy #UAS #drone #particledispersal #copper #retention #leaching #BuffaloReef #toxicity #Daphnia #benthic #organisms #risk #hazard #contamination #impacts #sediment #water #hydrology #Michigan #USA #LakeSuperior #PortageLakeVolcanic #geology #spatialanalysis #biology #ecosystems #fisheries #trout #enviornmentalimpacts #leaching #riparian #systems