Category Archives: Remote Sensing 101

History of Aerial Photography

The first real Aerial photograph was taken around 1826. The first aerial photograph was taken in 1858 by Felix Tournachon, known as Nadar, from a tethered balloon over the Bievre Valley in France. Those photographs no longer exist. The oldest surviving aerial … Continue reading

Posted in Class Notes, earth, Geography Practicals/Lab and Statistical Techniques, GIS, Remote Sensing 101, urban morphology, Urban Studies | Leave a comment

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

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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