De ArcheoloogMay 4
Met hulp van een #multibeam-echolood (instrument dat geluidsgolven naar de zeebodem zendt en meet hoe snel ze terugkomen) en een #magnetometer(apparaat dat kleine veranderingen in het magnetisch veld van de aarde detecteert, die kunnen wijzen op onder zand begraven metalen voorwerpen) hebben Spaanse archeologen meer dan 150 objecten uit de #oudheid, middeleeuwen en 20e eeuw op de bodem van de Straat van #Gibraltar ontdekt.
https://wibnet.nl/mens/archeologen-vinden-verborgen-oude-schat-in-straat-van-gibraltar
Archeologen vinden verborgen oude schat in Straat van Gibraltar

Met behulp van geavanceerde geologische methoden heeft een Spaans onderzoeksteam meer dan 150 objecten uit de oudheid, middeleeuwen en 20e eeuw gelokaliseerd op de bodem van de Straat van Gibraltar.

💧🌏 Greg CocksJan 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 CocksJun 19, 2025
Towards A Simpler Assessment Of The Environmental Impact Of Hydrographic Echosounders
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https://ihr.iho.int/articles/towards-a-simpler-assessment-of-the-environmental-impact-of-hydrographic-echosounders/ <-- shared paper
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https://www.fisheries.noaa.gov/s3/2024-05/NMSFAcousticGuidance-DraftTECHMEMOGuidance-3.0-FEB-24-OPR1.pdf <-- shared NOAA 2024 guidance
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https://doi.org/10.1098/rspb.2020.0070 <-- shared paper
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#GIS #spatial #mapping #communityhydrography #echosounder #environmentalimpact #hydrography #marinemammals #whales #cetaceans #survey #impacts #humanimpacts #logistics #management #planning #ecosystems #seafloor #sonar #remotesensing #marine #animals #risk #hazard #multibeam #model #modeling #impactassessment #riskassessment #auditory #fish #habitat #strandings
💧🌏 Greg CocksApr 8, 2025
Surveying Lake Titicaca [2024]
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https://www.hydro-international.com/content/article/surveying-lake-titicaca <-- shared technical article
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[A very comprehensive hydrographic and shallow geophysical study and mapping effort of Lake Titicaca…]
“In October 2024, officers from the Category “A” Specialization Programme in Hydrography for Naval Officers of the Peruvian Navy conducted their complex multidisciplinary field project at Lake Titicaca at Puno in Peru, which is the highest navigable lake in the world (3,800 metres above sea level). The purpose of this survey was to address issues in the lacustrine environment due to hydrological processes that have occurred in recent years in this water body.…”
#GIS #spatial #mapping #hydrospatial #hydrology #hydrography #LakeTiticaca #Bolvia #Puno #Peru #PeruvianNavy #lake #remotesensing #survey #lacustrine #vertical #multibeam #echsounder #sonar #geomatics #cartography #QGIS
Surveying Lake Titicaca

In October 2024, officers from the Category “A” Specialization Programme in Hydrography for Naval Officers of the Peruvian Navy conducted...

💧🌏 Greg CocksMay 20, 2024
Lake Wānaka Mapped In Exquisite Detail [topobathy, New Zealand]
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https://niwa.co.nz/news/lake-wanaka-mapped-exquisite-detail <-- shared technical article
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#GIS #spatial #mapping #hydrospatial #bathymetry #remotesensing #LakeWanaka #Wanaka #NewZealand #topobathy #lake #floor #water #hydrology #survey #underwater #geology #geomorphometry #earthquake #fault #faulting #NIWA #lakebed #glacial #glacier #multibeam #echosounder #3dmodel #waterquality #landuse #freshwater #nutrients #sediment #sedimentation #climatechange #model #modeling #catchments #hydrodynamics
@niwa_nz
Lake Wānaka mapped in exquisite detail | NIWA

NIWA scientists have mapped the whole of Lake Wānaka in incredible detail.  

💧🌏 Greg CocksJan 17, 2024
Continental Shelf Maps Could Add Egypt-Size Area To U.S. Territory – A Two-Decade Mapping Effort Yields Bounty Of Seafloor Data
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https://www.science.org/content/article/continental-shelf-maps-could-add-egypt-size-area-u-s-territory <-- shared technical article
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https://www.state.gov/the-us-ecs/ <-- US Dept. Of State Extended Continental Shelf (ECS) project page
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#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
💧🌏 Greg CocksNov 22, 2023
The Geomorphology Of Ireland’s Continental Shelf [mapping, remotesensing]
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https://www.tandfonline.com/doi/full/10.1080/17445647.2023.2283192 <-- shared technical article
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https://atlas.marine.ie <-- Irish Marine Atlas
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#GIS #spatial #mapping #remotesensing #geomorphology #geomorphometry #Ireland #geology #ISSGM #opendata #Irish #continentalshelf #INFOMAR #multibeam #echosounder #sonar #seabed #bathymetry #topobathy #elevation #interpretation #digitalmap #marine #atlas #IrishShelf #machineassisted #machinelearning #coast #coastal #offshore
💧🌏 Greg CocksNov 9, 2023
Mapping The Poverty Bay Seabed Like Never Before [New Zealand]
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https://www.rnz.co.nz/news/ldr/501907/mapping-the-poverty-bay-seabed-like-never-before <-- shared media article
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https://data.linz.govt.nz/ <-- LINZ data service website
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#GIS #spatial #mapping #bathymetry #NewZealand #PovertyBay #Gisborne #remotesensing #multibeam #sonar #opendata #datacollection #usecase #navigation #marine #marinesurvey #nauticalcharts #charts #LINZ
@LINZ
Mapping the Poverty Bay seabed like never before

Around 10,000km will be clocked up by a small aluminium boat criss-crossing the waters of Tūranganui-a-Kiwa this month.

RNZ
💧🌏 Greg CocksOct 18, 2023
Survey Shows Striking Legacy Of 'Operation Dynamo' On The Seabed Off Dunkirk [remote sensing]
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https://historicengland.org.uk/whats-new/news/survey-shows-striking-legacy-of-operation-dynamo/ <-- shared technical article
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#GIS #spatial #mapping #remotesensing #bathymetry #shipwreck #history #historic #multibeam #sonar #echosounder #WorldWar2 #WW2 #WWII #Dunkirk #evacuation #OperationDynamo #survey #seafloor #marine #Archaeology #MarineArchaeology #geophysics #Drassm #HistoricEngland
@Drassm_Culture @HistoricEngland
Survey Shows Striking Legacy of 'Operation Dynamo' on the Seabed off Dunkirk | Historic England

A research project to detect and identify undiscovered shipwrecks shows the position, characteristics, and condition of wrecks in remarkable detail.

💧🌏 Greg CocksMar 31, 2023
Bathymetric Data Viewer [global, NOAA]
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https://www.ncei.noaa.gov/maps/bathymetry/ <-- spatial open data web portal
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“NCEI and the IHO Data Center for Digital Bathymetry (DCDB) archive and share depth data acquired by hydrographic, oceanographic, and industry vessels and platforms during surveys or while on passage. These data, which are used in several national and international mapping bathymetry projects, are free to the public with no restrictions…”
#GIS #spatial #mapping #remotesensing #bathmetry #global #opendata #openaccess #download #NCEI #DCBD #NOAA #elevation #sonar #water #hydrography #hydrospatial #webportal #science #spatialanalysis #DEM #data #digital #multibeam #survey #visualisation #BAG #raster #GEBCO #GMRT #IBSCO #GSHHG
@NOAA @NCEI @GEBCO
Bathymetric Data Viewer