Category Archives: Remote Sensing 101

Concept and Applications of Digital Elevation Model (DEM)

A digital elevation model (DEM) is a digital model or 3D representation of a terrain’s surface — commonly for a planet (including Earth), moon, or asteroid — created from terrain elevation data. In most cases the term digital surface model represents the earth’s surface and includes … Continue reading

Posted in Class Notes, earth, GIS, Remote Sensing 101 | 1 Comment

Agreement on IRS Satellite Data Between India and Brazil (link)

India and Brazil signed an agreement recently which would allow the Brazilian earth stations to receive and process data from Indian Remote Sensing satellites (IRS). The financial terms of the agreement states that INPE will, with its own regular budgetary … Continue reading

Posted in Links, News, Remote Sensing 101, Satellites | Tagged , , , | Leave a comment

Synthetic Aperture Radar Using ‘Inflation’ Monitoring could Predict Volcanic Eruptions

The world’s deadliest and largest volcanic eruptions happen in Indonesia. Future eruptions in this jungle-filled region could be better predicted by using satellite radar to detect swelling magma near the summit of those volcanoes, a new study suggests. To search … Continue reading

Posted in GIS, opinions, Remote Sensing 101, Satellites, Volcanoes | Tagged , , , | Leave a comment

ISRO Maps More Accurate than Google maps

Kohima, India: Asserting that GIS technology is emerging as a powerful tool for decentralised planning, a workshop, held in Kohima, capital of the northeastern state of Nagaland, called for utilisation of vital data and maps made available by ISRO through … Continue reading

Posted in map making, Remote Sensing 101 | Leave a comment