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Svalbard
Arctic
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Binary snow classification
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Norway
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Ny-Ålesund
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Orthoimages
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Orthophotos
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Permafrost
3
Remote sensing
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Snow
3
Snow cover
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Snowmelt
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Time-lapse photography
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Earth and Environmental Sciences
1
Longyearbyen
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NOx
1
O3
1
SO2
1
air pollution
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air quality
1
nitrogen oxides
1
sulphur dioxode
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tropospheric ozone
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