Polarpedia has information categorized by main topics. Click on an icon below to view the available terms.
«
»

Rökkur / ljósaskipti

Rökkur er tímabilið á milli sólseturs og nætur og líka á milli nætur og sólarupprásar þegar sólin er fyrir neðan sjóndeildarhringinn en andrúmsloftið er upplýst af sólinni. Þetta birtustig er vegna áhrifa sem sólarljósið hefur á efra himinhvolfið.

Það eru til þrjár mismunandi skilgreiningar af ljósaskiptum eða rökkva, allt eftir því hversu langt sólin er fyrir neðan sjóndeildarhringinn:

 

«
»
Polarpedia has information categorized by main topics. Click on an icon below to view the available terms.
Polarpedia terms are created by EDU-ARCTIC Consortium, which holds responsibility for quality of translations in following languages: Polish, French, Danish, Norwegian, German, Russian, Italian, unless indicated otherwise. If you see an error - please contact us: edukacja@igf.edu.pl.
European Union flag This project (EDU-ARCTIC) has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 710240. The content of the website is the sole responsibility of the Consortium and it does not represent the opinion of the European Commission, and the Commission is not responsible for any use that might be made of information contained.
Designed & hosted by American Systems Sp. z o.o.