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
US CONUS Rivers Of Dimension By Annual Flow – An Older (2013) But Still SO Useful Hydrologic Visualisation
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https://pacinst.org/american-rivers-a-graphic/ <-- shared technical post
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“... Several things stand out:
1) the massive flow of the mighty Mississippi and Columbia River systems
2) the paucity of major rivers in the western US, especially the southwestern US, where the only major rivers are the seriously over-tapped Colorado and Rio Grande Rivers
3) the local importance of the Sacramento-San Joaquin Rivers in California, which serve the state’s cities and agricultural regions…”
#visualisation #infographic #water #hydrographic #hydrology #US #USA #CONUS #flow #humanimpacts #gage #USGS #USGSgage #agriculture #transportation #rivers #waterresources #overuse #monitoring #planning #AmericanRivers #mapping #spatial #spatialanalysis #scale #symbology #proportional #symbology #bigriver #Colorado #Columbia #Mississippi #SanJoaquin #RioGrande #NHD #NationalHydrographyDataset
#PacificInstitute | #USGS | #AmericanRivers
Small Waterbodies Of Large Conservation Concern - Towards An Integrated Approach To More Accurately Measuring Surface Water Dynamics
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https://doi.org/10.1016/j.ecolind.2025.113525 <-- shared paper
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“HIGHLIGHTS
• Hydrologic models were used to assess remotely sensed surface water estimates.
• The accuracy of satellite surface water estimates diminished for waterbodies < 2 ha.
• Vegetation reduces accuracy of surface water detection, especially during wet years..."
#GIS #spatial #mapping #waterbodies #Conservation #planning #surfacewater #Hydrologicmodeling #remotesensing #earthobservation #water #hydrology #hydrographic #model #modeling #spatialanalysis #spatiotemporal #waterbody #small #conservation #inventory #monitoring #accuracy #aquatic #vegetation #climate #NorthAmerica #kettle #landforms #landcover #glaciation #prairie #pothole

#Ireland has been elected to the #IALA Council at its inaugural General Assembly in #Singapore on 20 February 2025, following ratification of the IALA Convention in 2023. Represented by Yvonne Shields O'Connor, Ireland will influence global maritime navigation standards, focusing on marine aids, digitalisation, climate adaptation, and safety.

Minister for #Transport, Darragh O'Brien, highlighted Ireland's leadership in maritime safety and commitment to working with IALA to enhance global security and sustainability at sea. Ireland's priorities include addressing climate change impacts, maritime communications, and collaborating with the International #Hydrographic Organisation. The country's 2025-2030 strategy aligns with IALA’s mission to drive innovation and sustainability in maritime operations.
https://www.gov.ie/en/press-release/9c915-ireland-secures-council-seat-on-iala-to-strengthen-safety-of-navigation-globally/

The Oldest Three-Dimensional Map in the World Discovered in a Paleolithic Cave Near Paris

French scientists have identified a unique engraving in the Ségognole 3 cave, located in the famous sandstone massif south of Paris. This engraving, dating back to the Upper Paleolithic, could be the oldest three-dimensional map ever found. The research, published in the Oxford Journal of Archae

LBV Magazine English Edition
French Defense Procurement Agency Receives Second Overseas Patrol Vessel in Polynesia

These vessels will conduct missions such as fishery patrols, responding to maritime pollution, protecting the environment, combating illicit activities like drug trafficking and illegal immigration, aiding distressed vessels, and performing sea rescues.