chernobyl revisited - changes 23 years after the chernobyl nuclear disaster

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Chernobyl Revisited Changes 23 years after the Chernobyl Nuclear Disaster Shu Tao Yale School of Forestry & Environmental Studies

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Post on 12-Apr-2017

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ChernobylRevisitedChanges23yearsaftertheChernobylNuclearDisaster

Shu TaoYale School of Forestry & Environmental Studies

Chernobyl exclusion zone(original and present day)

Chernobyl Nuclear Power Plant ForestPripyat

This area remains almost completely abandoned and is called the Chernobyl exclusion zone. The area is a mixture of former agriculture, forest, and marshland. It has been mostly free from human intervention since 1986.

2

Images Landsat 51986/04/29

One map explain pripyat, Chernobyl, Exclusion zone, red forest3

Subset

Near the common borders of Ukraine, Belarus, and Russia, the Chernobyl Nuclear Power Plant lies near the Pripyat River at the northwestern end of a cooling pondJust northwest of the plant is the city of Pripyat. The smaller town of Chernobyl lies south of the cooling pond.4

Cloud MaskBand Math: Reflectance >0.19, Brightness temperature 55%-> WetlandsBright vegetation -> 72% -> Bare Soil

Class Change - Coniferous

Red 1986Green 2009Cooling PondNuclear Power Plant Pripyat

Conclusions1) Landsat5 helped to confirm the Chernobyl Nuclear Disaster

2) Urban area keeps strikingly similar

3) Forest area is generally expanding but with deforestation in some area

Thanks!Questions?