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#topography — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #topography, aggregated by home.social.

  1. Record-Setting Retreat of Hektoria Glacier

    To say something moves at a glacial pace is to imply sluggish, unhurried change. But what transpired over…
    #NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Environment #EarthObservatory #Ice&Glaciers #Landsat8/LDCM(LandsatDataContinuityMission) #RemoteSensingTechnology #Science #Sealevelrise #topography
    newsbeep.com/us/625068/

  2. Record-Setting Retreat of Hektoria Glacier

    To say something moves at a glacial pace is to imply sluggish, unhurried change. But what transpired over…
    #NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Environment #EarthObservatory #Ice&Glaciers #Landsat8/LDCM(LandsatDataContinuityMission) #RemoteSensingTechnology #Science #Sealevelrise #topography
    newsbeep.com/us/625068/

  3. USGS CoNED (TopoBathy) WebMap Viewer & (Open) Data Downloader
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    topotools.cr.usgs.gov/topobath <-- shared Viewer webmap & download selector
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    usgs.gov/coastal-changes-and-i <-- 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]
    ,
    @USGS

  4. USA commercial airports at the most altitude above the city

    Provided below is a list of those American commercial airports with scheduled airline service, whose elevation has the most difference in altitude over and above the city’s official elevation (usually downtown). As always, any additions, corrections, or suggestions are most welcome. Each elevation is based on the information provided by gemini.google.ai and/or confirmed through en.wikipedia.org.

    Billings-Logan International set upon Rimrock Mesa overlooking the city – Source: flybillings.com

    Most surprising to this blog author was how many airports rom the eastern half of the United States are on the list (approximately half), including the first two positions. Many of these variations in elevation, especially in the East result from the downtown area being located in a river valley, while the airport was built on a bluff or hill above the city.

    Peace!

    Charleston-Yeager Airport atop a bluff overlooking the city in the valley – Source: wvpublic.org

    _______

    CITY: AIRPORT ELEVATION – OFFICIAL/DOWNTOWN ELEVATION = +DIFFERENCE

    1. Johnstown, Pennsylvania: 2,284′ vs. 1,161′ = +1,123 feet

    2. Duluth, Minnesota: 1,428′ vs. 605′ = +823 feet

    3. Lewiston, Idaho: 1,438′ vs. 745′ = +693 feet

    4. Marquette, Michigan: 1,204.5′ vs. 633′ = +571.5 feet

    5. Las Cruces, New Mexico: 4,456.5′ vs. 3,901′ = 555.5 feet

    6. Moab, Utah: 4,579′ vs. 4,026′ = +553 feet

    7. Spokane, Washington: 2,385′ vs. 1,843′ = +542 feet

    8. Billings, Montana: 3,652′ vs. 3,126′ = 526 feet

    9. Pittsburgh, Pennsylvania: 1,202.9′ vs. 764′ = +438.9 feet

    10. Rock Springs, Wyoming: 6,765′ vs. 6,388′ = +377 feet

    11-12. Charleston, West Virginia: 947′ vs 597′ and Great Falls, Montana: 3,680 feet vs. 3,330′ = +350 feet each

    13. Altoona, Pennsylvania: 1,503′ vs. 1,161′ = +342 feet

    14. Telluride, Colorado: 9,078 vs. 8,754′ = +324 feet

    15. Grand Junction, Colorado: 4,861′ vs. 4,583′ = +278 feet

    16. Huntington, West Virginia: 828′ vs 564′ = +264 feet

    17. Dubuque, Iowa: 1,076′ vs. 817′ = +259 feet

    18. Clarksburg, West Virginia: 1,223.5′ vs. 994′ = +229.5 feet

    19. Lewisburg, West Virginia: 2,301′ vs. 2,080′ = +221 feet

    20. Scranton, Pennsylvania: 962′ vs. 745′ = 217 feet

    21. Casper, Wyoming: 5,344′ vs. 5,118′ = 216 feet

    22. Jackson Hole, Wyoming: 6,451′ vs. 6,237′ = 214 feet

    23. Durango, Colorado: 6,686′ vs 6,512′ = +174 feet

    24. Cincinnati, Ohio: 895.8′ vs 742′ = +153.8 feet

    25. St. Louis, Missouri: 617.3 vs. 466 feet = +151.3 feet

    26. Topeka, Kansas: 1,077.9′ vs. 938′ = +139.9 feet

    27. Albany, New York: 285′ vs. 148′ = +137 feet

    28. Taos, New Mexico: 7,096′ vs 6,969′ = +127 feet

    29. Kansas City, Missouri: 1,026.9′ vs. 910′ = +116.9 feet

    #airports #altitude #cities #elevation #fun #geography #history #landUse #planning #terrain #topography #transportation #travel
  5. Hype for the Future 99N: Grayson County, Virginia

    Introduction Located firmly within the Appalachian, and more specifically, Blue Ridge, portion of the Commonwealth of Virginia is Grayson County, a Virginian county home to the Town of Independence and associated Independence Gallery as well as much of the Grayson Highlands State Park. Geography Topographically, Grayson is the Virginian county most commonly attributed to the highest elevation found in the Commonwealth of Virginia. However, the official highest point on the mountain may […]

    novatopflex.wordpress.com/2026

  6. See The Mississippi River’s Hidden History, Uncovered By Lasers
    Using hyperprecise LiDAR data,. a cartographer [well, hydrographer!] maps the river’s bend and channels over time with mesmerizing results…
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    nationalgeographic.com/science <-- shared technical / media article
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    dancoecarto.com/ <-- shared @Daniel Coe portfolio and more
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    usace.contentdm.oclc.org/digit <-- shared Harold Fisk's 1944 USACE report, “The Alluvial Valley of the Lower Mississippi River”
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    #GIS #spatial #mapping #water #hydrography #hydrology #LiDAR #remotesensing #spatialanalysis #spatiotemporal #hydrogeomorphology #Mississippi #River #Fiske #cartography #visualisation #meandering #channels #landforms #floodplains #opendata #3DEP #topography #geomorphology #levees #dikes #oxbows #channel #paleohydrology
    #DanielCoe | @nationalgeographic | #USGS | #USACE

  7. The World Is Studded With Artificial Mountains
    They’re fake, but they can be spectacular (and hazardous).
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    atlasobscura.com/articles/arti <-- shared article
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    [As I was reading this article I was thinking about Rome’s Monte Testaccio, an “artificial mound[s] in Rome composed almost entirely of testae, fragments of broken ancient Roman pottery, nearly all discarded amphorae [mainly for imported olive oil] dating from the time of the Roman Empire…”: en.wikipedia.org/wiki/Monte_Te]
    #topography #artificalgeography #fakemountains #spoilheap #slag #slagheap #AncientRome #industry #landscape #manmade #mountains #manufacturing #construction #mining #cement #steel #history #concrete #clinker #repurposing #geology #environment #water #reclaimed #global
    @atlas Obscura