💧🌏 Greg Cocks<p>Inferring River Discharge From Google Earth Images - Critical Flow Theory Can Predict River Discharge Based On The Spacing Of Standing Waves Captured By Google Earth Images<br />--<br /><a href="https://eos.org/editor-highlights/inferring-river-discharge-from-google-earth-images" target="_blank" rel="nofollow noopener" translate="no"><span class="invisible">https://</span><span class="ellipsis">eos.org/editor-highlights/infe</span><span class="invisible">rring-river-discharge-from-google-earth-images</span></a> &lt;-- shared technical article<br />--<br /><a href="https://doi.org/10.1029/2025GL114851" target="_blank" rel="nofollow noopener" translate="no"><span class="invisible">https://</span><span class="">doi.org/10.1029/2025GL114851</span><span class="invisible"></span></a> &lt;-- shared paper<br />--<br />“… KEY POINTS:<br /> • Standing waves in rivers indicate unique hydraulic conditions that allow depth and velocity to be inferred from the spacing of the waves<br /> • Critical flow theory can be used to calculate discharge based on measurements of wavelength and width made using readily available images<br /> • Discharges estimated via the critical flow approach for 82 images agreed closely with discharges recorded at gaging stations (R² = 0.98)…”<br /><a href="https://techhub.social/tags/GIS" class="mention hashtag" rel="tag">#<span>GIS</span></a> <a href="https://techhub.social/tags/spatial" class="mention hashtag" rel="tag">#<span>spatial</span></a> <a href="https://techhub.social/tags/mapping" class="mention hashtag" rel="tag">#<span>mapping</span></a> <a href="https://techhub.social/tags/spatialanalysis" class="mention hashtag" rel="tag">#<span>spatialanalysis</span></a> <a href="https://techhub.social/tags/remotesensing" class="mention hashtag" rel="tag">#<span>remotesensing</span></a> <a href="https://techhub.social/tags/GoogleEarth" class="mention hashtag" rel="tag">#<span>GoogleEarth</span></a> <a href="https://techhub.social/tags/CriticalFlowTheory" class="mention hashtag" rel="tag">#<span>CriticalFlowTheory</span></a> <a href="https://techhub.social/tags/riverdischarge" class="mention hashtag" rel="tag">#<span>riverdischarge</span></a> <a href="https://techhub.social/tags/standingwaves" class="mention hashtag" rel="tag">#<span>standingwaves</span></a> <a href="https://techhub.social/tags/gages" class="mention hashtag" rel="tag">#<span>gages</span></a> <a href="https://techhub.social/tags/gauges" class="mention hashtag" rel="tag">#<span>gauges</span></a> <a href="https://techhub.social/tags/earthobservation" class="mention hashtag" rel="tag">#<span>earthobservation</span></a> <a href="https://techhub.social/tags/flow" class="mention hashtag" rel="tag">#<span>flow</span></a> <a href="https://techhub.social/tags/volume" class="mention hashtag" rel="tag">#<span>volume</span></a> <a href="https://techhub.social/tags/hydraulicjumps" class="mention hashtag" rel="tag">#<span>hydraulicjumps</span></a> <a href="https://techhub.social/tags/velocity" class="mention hashtag" rel="tag">#<span>velocity</span></a> <a href="https://techhub.social/tags/depth" class="mention hashtag" rel="tag">#<span>depth</span></a> <a href="https://techhub.social/tags/water" class="mention hashtag" rel="tag">#<span>water</span></a> <a href="https://techhub.social/tags/hydrography" class="mention hashtag" rel="tag">#<span>hydrography</span></a> <a href="https://techhub.social/tags/hydrology" class="mention hashtag" rel="tag">#<span>hydrology</span></a> <a href="https://techhub.social/tags/wavelength" class="mention hashtag" rel="tag">#<span>wavelength</span></a> <a href="https://techhub.social/tags/channelwidth" class="mention hashtag" rel="tag">#<span>channelwidth</span></a> <a href="https://techhub.social/tags/discharge" class="mention hashtag" rel="tag">#<span>discharge</span></a> <a href="https://techhub.social/tags/estimation" class="mention hashtag" rel="tag">#<span>estimation</span></a></p>