Tag Archives: remote sensing

BIOMASS recommended as 7th Earth Explorer

The European Space Agency’s Earth Science Advisory Committee (ESAC) has recommended that BIOMASS be selected as the 7th Earth Explorer mission. The recommendation was conveyed in a letter from Prof. Volker Leibig, Director of Earth Observation Programmes to Lead Investigators … Continue reading

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Image classification versus manual mapping

Classification is a common tool for deriving thematic information, such as maps, ¬†from satellite imagery. A range of algorithms have been developed over the years; these are typically broken down into supervised and unsupervised methods. Supervised classification requires the user … Continue reading

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Why ENVI?

There are lots of factors to consider before investing large-ish amounts of money in software. Freeware is increasingly viable for many users. I use ENVI primarily because it is used in teaching at my place of work. ENVI is, I … Continue reading

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Tips about MODIS data

MODIS data comes in many flavours. NASA and partners have created a wealth of datasets based on MODIS data. Here are some tips about what’s out there and what some of the acroymns mean. Level 1 data are either radiance … Continue reading

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SAR freeware: NEST

The European Space Agency (ESA) is a leading provider of free and open software tools. Amongst the packages available are: – BEAM: for processing MERIS and other VIS-IR imagery -NEST: a SAR processing package -PolSARPro: polarimetric SAR tools Here I … Continue reading

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Landsat data processing (in ENVI)

I’ve been asked for advice on processing Landsat data a few times in the last couple of weeks. So, here are a few tips. Accessing data¬† Data can be acquired from a number of sources: http://www.Landsat.org has orthorectified data from … Continue reading

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Remote Sensing text books

I have been looking for a new text book, or text books, for an undergraduate and a masters course in remote sensing. At the masters level we have used Paul Mather’s Computer Processing of Remotely Sensed Images (Wiley). Mather’s book … Continue reading

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