iiinova — where your digital self keeps evolving

You cannot see groundwater from space. Two satellites weigh it. GRACE weighs water from orbit. Groundwater has recovered in 67 places studied. Like + repost if useful.

000

India put a water treaty from 1960 on hold. A court says it is still in force. 31 Aug 2026: a court in The Hague says the Indus Waters Treaty remains fully in force. India rejects it. Like + repost if useful.

000

Countries almost never go to war over water. That is not good news. 20th century: 7 minor skirmishes, 145 treaties. 2024: 420 recorded violent events involving water. Like + repost if useful.

000

This glacier did not last the 15 years scientists gave it. Chacaltaya was given 15 years in 2001. It was announced gone in 2009. Like + repost if useful.

000

This lake dried up in a year with more rain than normal, not less. Lake Poopo, Bolivia, almost gone by Jan 2016. 2015 brought more rain than normal. Like + repost if useful.

000

The famous story says Bolivia banned collecting rain. The law never mentions it. The 1999 law banned new wells and other water capture without a licence. It never mentions rain. Like + repost if useful.

001

No, that satellite photo trick wasn't built to find ancient art. It was built for Mars. A NASA color method made to sort Martian rock types now reveals ancient rock art too faded to see with the naked eye, from Norway to Egypt. Like + repost if useful.

000

No, a weather station did not confirm the snow outside your window. A satellite did. NASA's MODIS satellite checks the planet for snow cover daily, about 93% accurate under clear skies. Most misses are clouds mistaken for snow, not snow it missed. youtube.com/@Routero

000

No, sea level is not flat. South of India it dips about 106 meters below the reference shape GPS uses, the Indian Ocean Geoid Low. A 2023 mantle study links it to old ocean floor disturbing deep African mantle rock, sending plumes up beneath the seafloor. Like + repost if useful.

000

No, land plants don't do most of Earth's carbon fixing. Ocean phytoplankton, invisible to the eye, fix nearly as much each year as every plant on land combined, and satellites map it from the color of the water. youtube.com/@Routero

000

No, Lake Mead is not just low. It just hit its lowest point since it was filled in the 1930s. The reservoir behind Hoover Dam supplies water to about 25 million people. Satellites map its shrinking shoreline using the same water index scientists have used since 1996. Like + repost if useful.

000

This river floods every spring because it flows the wrong way The Red River flows north. In spring the warm southern end thaws while the north is still frozen. The meltwater has nowhere to go, so the flat valley floods. Like + repost if useful.

000

The hurricane forecast cone doesn't show how big a storm gets, it shows where the center is likely to go. NHC sizes it so 1 in 3 times the real track lands outside, by design. Full breakdown: youtu.be/24rhVSj7qX8

000

No, satellite trackers do not see most of the world's fishing boats. An AI reading radar satellite images found 72 to 76% never broadcast a location. Earth's gravity also is not even: sea level dips 106m south of India. More geo science on the channel. youtube.com/@Routero

000

Why 'reproduces from a clean clone' became my one rule: I lost too many old results to a machine that no longer existed. Never again. #OpenScience #ReproducibleResearch

No, satellites can't run AI on board, not enough power up there. NASA just proved that wrong. Its open source Prithvi model, trained on Landsat and Sentinel-2 data, now runs in orbit, compressed to fit a satellite and the ISS, flagging floods or fires before landing. Like + repost if useful.

001

No, the Amazon rainforest is not the most photosynthetically active place on Earth every summer. Satellites reading plant fluorescence show the US Corn Belt's signal beating the Amazon's July peak by about 40% for a few weeks each year. More geo science on the channel. youtube.com/@Routero

000

Earthquakes did not sink this Spanish basin up to 2.5 metres. Pumping did. Lorca, Spain: up to 2.5 m, 1992 to 2012, after the water table fell 100 to 200 m. Like + repost if useful.

000

The 28 most populous US cities: not one is free of sinking ground. At least a fifth of the land sinks in every one. Houston is fastest: 42% by over 5 mm a year. Like + repost if useful.

000

The ground here did not bounce back. It is down 2.4 m since 2015. Deepest spot east of Corcoran, California, from Sentinel-1. Squeezed clay does not refill. Like + repost if useful.

000

This pole is not buried. The ground around it sank nearly 30 feet. USGS signs mark the ground in 1925, 1955 and 1977, south west of Mendota, California: about 9 m lower. Like + repost if useful.

000

From space, a radar wave can tell the ground moved a centimetre. Compare two radar passes: a shift in the wave's phase is a shift in the ground. One Sentinel-1 fringe is about 2.8 cm. Like + repost if useful.

000

From space, a radar caught parts of Mexico City sinking 2 cm a month. NASA says parts were sinking more than 2 cm a month, Oct 2025 to Jan 2026, seen by the new NISAR radar. Like + repost if useful.

000

No, how badly a wildfire burns isn't decided when it starts. Satellites already measure vegetation stress before fire season. A new study found this explained about 60% of burn severity in the Jan 2025 LA fires (Ward-Baranyay et al., 2026, AGU Advances). Like + repost if useful.

000

No, cloud cover can't stop this satellite from seeing the ground. On Sep 19, Rocket Lab launched the 12th satellite in a radar constellation that images Earth through storms and in total darkness, by sending its own microwave signal and reading the echo. Like + repost if useful.

000

Most heat maps never run the one test that separates a real hotspot from random noise. Getis-Ord Gi* only calls a cluster real once its z-score clears 1.96, the same bar built into ArcGIS's own Hot Spot Analysis tool. More geo science on the channel. youtube.com/@Routero

000

How do you validate a model where ground truth is scarce (much of Africa, for instance)? Cross-validation only tells you so much. #GeoAI #MachineLearning

NDVI tracks vegetation; NDWI tracks water. Mapping a flood? Reach for NDWI. Using the vegetation index for water is a common, costly mix-up. #Water #Teaching

000

The second hour of a stereo lab: moving a photograph two millimetres, turning a stereoscope one degree, and waiting for the moment somebody says, wait, I can see it. youtu.be/D0wbl1J6uAo #Teaching #Stereoscope

000

Almost every stereo pair that will not fuse fails in one of five ways: lens spacing, the flight line, left and right swapped, the light, or looking outside the overlap. youtu.be/mzf_HcJ5DBc #Stereoscope #Teaching

000

Every aerial photograph has an exact centre: the principal point, where the camera pointed straight down. youtu.be/azKgkxOLq2s #Photogrammetry #AerialPhotography

000

The mounted cards are the easy part. Somebody did that alignment decades ago. youtu.be/hrx9P5PKijU #Stereoscope #AerialPhotography

One of these photographs was taken in 1945. The other in 1958. Put a pair of lenses over them and they stop being flat. youtu.be/g7LZbaMj4Uc #Stereoscope #AerialPhotography

000

The same block of downtown in 2010 and 2023. What can the photograph actually prove? youtu.be/YQpoMyI1RMo #RemoteSensing #AerialPhotography

000

Moss Point, Mississippi, photographed in January 1958. Ishigaki, Japan, in March 1945. Put a stereoscope over them and they still do exactly what they did the day they were taken. youtu.be/atHuT4gsio4 #AerialPhotography #Stereoscope

000

Two flat pieces of paper, and a city stands up off the table. youtu.be/l9TNSbTHVn8 #Stereoscope #RemoteSensing

000

The easy mistake is to zoom in. Close up you get shape and tone, but most answers come from zooming back out and asking what the whole place is for. youtu.be/QKwsOkMCLUw #RemoteSensing #AerialPhotography

000

A perfect circle with a bridge across it. Tracks radiating out like the hands of a clock. Locomotives parked beside it, a long curved building wrapped around one side. youtu.be/B4lMmthFgmU #RemoteSensing #AerialPhotography

000

Take an aerial photograph of your own town and name what you see. Most people stall within a minute. youtu.be/htpnPVErBk8 #RemoteSensing #AerialPhotography

000

No, Lake Powell hasn't recovered, it just hit its lowest level ever recorded. NASA's Landsat images from 2017 and 2026 show the shoreline pulled back to 3,517.24 feet, below the 2023 record, after a winter with too little mountain snow to refill it. Like + repost if useful.

000

Cameroon's GCE has three tracks: Ordinary Level, Advanced Level, and Technical. Most exam-prep tools only build for the first two. My free app covers all three, Technical included, with 15,932 real past questions and a full worked answer for each. Free for 2026. cameroon-gce-smartprep.netlify.app

000

Every transformation tested, every model documented, lineage you can trace end to end. My dbt project treats analytics like software. #dbt #Analytics

000

The Colorado River does not reach the sea in most years. Since the big dams filled, it reaches the Gulf only in rare flood years. A 2014 release got there for the first time since 2001. Like + repost if useful.

000

Two satellites can weigh water from space. GRACE found about 65 cubic km of fresh water lost from the Colorado basin, late 2004 to late 2013. 77% of it was groundwater. Like + repost if useful.