Mastodawn

💧🌏 Greg Cocks 3d ago

USGS CoNED (TopoBathy) WebMap Viewer & (Open) Data Downloader
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https://topotools.cr.usgs.gov/topobathy_viewer/ <-- shared #USGS Viewer webmap & download selector
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https://www.usgs.gov/coastal-changes-and-impacts/coned <-- shared USGS CoNED overview/entry page
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[I used to shore dive in the Straits Of Juan de Fucca, Washington State side, and Crescent Lake - so I chose that area as a CoNED example to explore; good memories, including of the 18 Wheeler Burger with pie & coffee in Joyce, WA on drizzly days]
#GIS #spatial #mapping #remotesensing #model #modeling #CoastalNationalElevationDatabase #CoNED #elevation #topography #bathymetry #topobathy #opendata #openscience #fedscience #publicgood #usecase #naturalworld #coastal #coast #depth #hydrospatial #hydrography #download #shoreline #inundation #sedimenttransport #sealevelrise #SLR #stormsurge #models #modeling #extremeweather #tsunami #impact #risk #hazard #assessment #climatechange #geomorphology #geomorphometry #Restoration, #redevelopment #protection #cliff #flood #flooding #webmap
@USGS

I was thinking about #bathymetry recently. And have tentatively started a project. Here's a not-very-good #blogpost

https://tlohde.com/blog/2026/03/deep-thoughts/

note to self: #blender3d is complicated

#bathymetryMapping #lochTreig #dam #indieweb #map #maps #gis #qgis #lochs

deep thoughts

thinking abouth bathymetry

💧🌏 Greg Cocks Mar 14

TopoBathy Open Standard - Bathymetric Attributed Grid (BAG) [OGC]
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https://www.ogc.org/standards/bag/ <-- shared open OGC standard 🔗
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https://www.hydroffice.org/bag/main <-- shared example of #opensource software to interact with the #opendata BAG format 🔗
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[this post should not be considered an endorsement of a particular product and/or approach]
#GIS #spatial #mapping #opendata #opensource #standard #openstandard #BathymetricAttributedGrid #BAG #format #grid #raster #offshore #OGC #hydrography #submarine #survey #marine #ocean #bottom #hydrospatial #FAIR #openspecification #specification #bathymetry #depth #seafloor #vertical #datum #metadata #hydrographic
#OpenGeospatialConsortium

💧🌏 Greg Cocks Mar 10

The Art Of Mapping The Edge
How surveying challenging terrain will protect New Zealand’s coastal frontiers
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https://www.hydro-international.com/content/article/the-art-of-mapping-the-edge <-- shared technical article 🔗
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https://www.linz.govt.nz/products-services/data/3d-coastal-mapping <-- NZ 3D Coastal Mapping Programme home page
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#bathymetry #topobathy #NV5 #oceanmapping #LINZ #newzealand #geospatial #hydrography #hydrographicsurveys #oceanography #arcgisbathymetry #arcgismaritime #3D #coast #coastal #coastline #naturalresources #ToitūTeWhenua #LandInformationNew Zealand #risk #hazard #infrastructure #resilience #planning #spatialanalysis #spatiotemporal #GIS #spatial #mapping #survey #publicgood #3DCoastalMappingProgramme #remotesensing #earthobservation #terrain #marine #elevation #depth #model #modeling
@LandInformationNewZealand

💧🌏 Greg Cocks Jan 1

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

💧🌏 Greg Cocks Jan 1

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

💧🌏 Greg Cocks Dec 28

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

💧🌏 Greg Cocks Dec 2

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

Hans van der Kwast

#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

Chrono Matthias Nov 26

@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