Share this page!

Enter URL or ID to Unroll

You can paste full URL like: https://x.com/threadreaderapp/status/1644127596119195649
or just the ID like: 1644127596119195649

How to get URL link on X (Twitter) App

  1. On the Twitter thread, click on or icon on the bottom
  2. Click again on or Share Via icon
  3. Click on Copy Link to Tweet
  4. Paste it above and click "Unroll Thread"!
  5. More info at Twitter Help
David Profile picture
David
@davidnewschool
Volunteer @GeoConfirmed
2 subscribers
Sep 4, 2023 • 14 tweets • 5 min read
I made a simple Python tool for estimating the distance of an explosion in a video based on the sound delay between the flash and boom of the explosion. Link: github.com/davidnewschool…Image The use case is geolocating an explosion when you only have one geolocated POV, while normally at least two POVs are required to triangulate the position of an event. You just need to know the location of the POV and the direction of the event.
Oct 16, 2022 • 8 tweets • 4 min read
Tutorial thread on how to overlay Sentinel-2 imagery in Google Earth Pro and blend them into an animated slide show using PowerPoint. (1/8) In this animation by @bradyafr, high-resolution Google Earth imagery serves as a reference to help the audience understand what they’re seeing in the subsequent low-resolution imagery from Sentinel-2. (2/8)
Oct 10, 2022 • 12 tweets • 6 min read
Thread on why the @GeoConfirmed map, when combined with Google Earth PRO and @OpenSreetMap infrastructure data, is a powerful geolocation tool for those researching the war in Ukraine. 1/12 Image For this example, I'll be using the Google Maps version of the GeoConfirmed map (tinyurl.com/2uas5rjp), and will manually import its associated KMZ file into Earth PRO. I think this parred-down version is a bit cleaner for geolocation. 2/12 ImageImage
Oct 6, 2022 • 7 tweets • 3 min read
Tutorial 🧵 on how to import infrastructure such as power lines into Google Earth Pro from OpenStreetMaps using Overpass Turbo. 1/6 Image Go to overpass-turbo.eu and click “Wizard”. For power lines in Ukraine, for example, enter “power=line in Ukraine” into the prompt and click “build query”. 2/6 Image
Oct 4, 2022 • 4 tweets • 2 min read
FIRMS and Sentinel-2 reveal that a building was destroyed in #Novopetrivka, #Kherson Oblast, between Oct. 2 and Oct. 3.
@GeoConfirmed 47.429190, 33.465831 FIRMS ImageImage
Sep 21, 2022 • 11 tweets • 9 min read
Geolocation of Russian soldier heading south (!) in IFV and passing bus stop in #Suvorove, #Crimea.
Source: t.me/separ_13/3274
Bus stop coordinates: 46.091765 33.698906
@GeoConfirmed with help from @stillesich
Proof in thread. 1/ For reference: line of sight from smokestack to pole next to bus stop (see rest of thread)
2/ Image
Sep 20, 2022 • 6 tweets • 3 min read
Do any residents of #Херсон #Kherson know the location of this bus stop? I'm trying to geolocate Russian soldiers in this video. ImageImageImage Original video and source:
t.me/separ_13/3274