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
Map Viewer - EGDI

Powerful and easy-to-use online application to display, query and analyse geological information through interactive maps.

EGDI
New map of landscape beneath Antarctica unveiled

The most detailed map yet of the landscape beneath Antarctica's ice sheet has been assembled by a team of international scientists led from the British Antarctic Survey (BAS).

Phys.org
Data Request For Potomac River Tragedy - National Centers For Environmental Information (NCEI), NOAA In The News
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https://www.ncei.noaa.gov/ <-- shared NCEI home page
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“A CNN Reporter requested data to portray the depth of the Potomac River near the site of the tragic plane and helicopter crash. The Digital Elevation Model Bathymetry (DEM) Team responded with information on how to use NCEI’s high-resolution Continuously Updated Digital Elevation Models (CUDEMs) to generate a map of the Potomac River and provided an example map…”
#GIS #spatial #mapping #remotesensing #bathymetry #topobathy #DEM #elevation #depth #NCEI #opendata #CUDEM #disaster #collision #air #potomacriver #potomac #crash #airdisaster #Washington #helicopter #ArmyHelicopter #blackhawk #NOAA #aviation #midair
@NOAA @NCEI
National Centers for Environmental Information (NCEI)

NCEI archives and provides access to environmental data to drive resilience, prosperity, and equity for current and future generations.

NOAA Digital Coast – Data Access Viewer [USA]
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https://coast.noaa.gov/digitalcoast/tools/dav.html <-- shared link to viewer
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[lots of new data added in the last 6 months]
“This online tool allows a user to search for and download lidar, imagery, and land cover data by user-defined geography. Once found, the data can be downloaded with an easy-to-use checkout interface. Users can select from multiple file formats, projections, and datums.
Features:
• View image services for applicable data
• View technical specifications and metadata for each data set
• Access data in several projections and datums…”
#GIS #spatial #mapping #spatialdata #opendata #LiDAR #imagery #NOAA #digitalcoast #USA #DataAccessViewer #landcover #topobathy #topography #bathymetry #charts #coast #coastal #CoastalChangeAnalysisProgram #CCAP #NLCD
@NOAA
Data Access Viewer

Find and download data hosted on the NOAA Office for Coastal Management website

New USGS dataset uncovers the Santiam River’s underwater topography to aid in fish habitat and water flow management | U.S. Geological Survey

A new dataset for the Santiam River in Oregon, published by the U.S. Geological Survey, provides a highly detailed underwater 3D elevation map that will help support fish habitat restoration and flood modeling work. 

Landsat Plumbs the (Shallow) Depths

Researchers have developed a new way to measure near-shore bathymetry using satellite observations alone.

A Crew Was Searching For Shipwrecks In Lake Michigan—But They Found Something Completely Different
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https://www.popularmechanics.com/science/environment/a62501711/lake-michigan-holes/ <-- shared media / technical article
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“ • A survey of Lake Michigan located at least 40 large craters on the lakebed.
• Initial studies highlighted the spots as unknown shapes, but additional research revealed the craters are filled with marine life.
• Researchers expect to investigate further, seeing how these craters formed and if they’re really sinkholes…"
#GIS #spatial #mapping #water #hydrology #groundwater #crater #sinkhole #bathymetry #topobathy #remotesensing #sonar #LakeMichigan #Michigan #research #GreatLakes #geomorphology #geomorphometry #ROV #ecology #ecosystems #cyanobacteria #WisconsinShipwreckCoastNationalMarineSanctuary #Sheboygan #Wisconsin #extremeecosystems #extremophiles #offgassing #hydrocarbons
@NOAA
A Crew Was Searching for Shipwrecks in Lake Michigan—but They Found Something Completely Different

What’s going on inside these dark holes? 

Popular Mechanics