The Russian Academy of Sciences' expedition, Pure Arctic—Vostok-77, plans to fully decode all symbols of the Pomor calendar and compare them with current climate observations. This information was reported to TASS by the press service of the scientific expedition.

'The Pomor calendar is a remarkable relic of medieval Russian science. Pomors used to mark all the days of the year on a wooden or bone bar, using special symbols to denote holidays and annual astronomical and natural events, 'explained Veronika Simonova, the scientific director of the expedition, as quoted in the report.

Scientists highlight that the Pomors were the Arctic's most proficient meteorologists during the 17th to 19th centuries. The Mezen Pomors, residing in the northeast of the Arkhangelsk Region, have preserved numerous weather omens that were effective from the 18th to 20th centuries. Comparing these omens with today's climate conditions is the focus of a research team led by ecologist Maxim Tokarev as part of the expedition.

'Our research aims to determine the most precise dates of snowfall and thawing, the onset of ice drift on the Mezen River, and other natural phenomena in the 19th century. These data are crucial for comparing climate indicators and constructing models of Arctic climate change,' explained Tokarev.