PolyU invention makes 3D mapping more accurate

The two major traditional 3D mapping techniques are photogrammetry using satellite/aerial imagery and laser scanning. The former offers higher accuracy in the horizontal direction while the latter shows higher accuracy in ...

Citizen scientists map global forests

New maps of global forest cover from the International Institute for Applied System Analysis (IIASA)'s Geo-Wiki team provide a more accurate view of global forests. The maps were published in the journal Remote Sensing of ...

First-light images from NASA's soil moisture satellite revealed

As severe weather hazards continue to afflict parts of the country to historic extremes, Professor Dara Entekhabi of the MIT Department of Civil and Environmental Engineering (CEE) and a team of NASA scientists provide an ...

A new global wetlands map

A new global map of the world's wetlands has been produced by an international research team led by former master's student Etienne Fluet-Chouinard and Prof. Bernhard Lehner of McGill's Department of Geography. In a paper ...

NASA adds up heavy rainfall from Hurricane Norbert

As Hurricane Norbert continued dropping heavy amounts of rainfall on Mexico's Baja California on September 5, NASA's TRMM satellite calculated the rain that had already fallen.

Image: Fire danger extreme in British Columbia, Canada

In parts of British Columbia, Canada, the Canadian Wildfire Information System's (CWIS) interactive map shows extreme wildfire danger. The area targeted on the map is the area where these wildfires are showing up on this ...

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