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#AllDataIsSpatial

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'Some (TopoBathy) Floodplain Images I Made A Few Years Ago, On The Mississippi R.
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These are some (topobathy) floodplain images I made a few years ago for a specific usecase – and ‘stumbled’ across them again today, lookin’ for something else…
Every time I look at such things, the (engineering) geologist, geomorphologist, (pseudo) hydrologist, spatial data scientist in me is made happy in being reminded what access we have to (often open) spatial data and the sheer volume of it, and the use cases for which it can be leveraged.
We are lucky professionals…
#GIS #spatial #mapping #alldataisspatial #remotesensing #geomorphology #hydrology #water #floodplain #usecase #opendata #LiDAR #geology #geomorphometry #spatialdata #happyprofessional #MississippiRiver #JALBTCX

Advantages and Disadvantages of Remote Sensing - Understanding the Limits of a Powerful Technology
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skywatch.com/advantages-and-di <-- shared technical article / opinion piece
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Excellent points, which is why I shared - but one they kind of missed was misinterpretation... it is a natural system, so the algorithms and process to take EA data and interpret necessarily can never be 100% perfect, and nor should they be expected to be. Ground truthing and other checks & balances are a crucial part of any such interpretation.
[This post is not considered an endorsement of this specific company]
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#GIS #spatial #mapping #remotesensing #earthobservation #advantages #disadvantages #opinionpiece #spatialanalysis #spatiotemporal #alldataisspatial #effectiveness #blackbox #tool #appliedscience #interpretation #limitations #challenges #usefulness #value #roi

Blow-Me-Down Brook, NH – An NHD Flowline Picked ‘Randomly’
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npshistory.com/brochures/saga/ <-- 1981 NPS guide
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usgs.gov/3d-hydrography-progra <-- USGS’s 3DHP home page
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I am working on some hydroaddressing / network traversing technical approaches for 3DHP – and needed an example of a multisegment flowline in NHD-sourced dataset, and so ‘randomly’ got this one - Blow-Me-Down, NH, from WBD HUC4-0108.
Although we map so many flowlines (~20 million in the USA for NHD-sourced spatial data, estimated 10x that for the EDH data still to be determined across the USA), I like trying to understand what a flowline or waterbody ‘is’ to the people on the ground as much as I can...
#GIS #spatial #mapping #networktraversing #3DHP #NHD #WBD #water #hydrology #USGS #mapping #USA #elevationderivedhydrography #EDH #3denabled #3dmapping #3dmodeling #3dep #elevation #opendata #nationally #waterresources #appliedscience #newhampshire #watermanagement #watermanagement #alldataisspatial #publicdata