Ukhvatkina O.N., Omelko A.M., Zhmerenetsky A.A., Petrenko T.Y.
В журнале Climate of the Past Discussions
Год: 2017
The aim of our research was to reconstruct climatic parameters (for the first time for the Sikhote-Alin mountain range) and to compare them with global climate fluctuations. As a result, we have found that one of the most important limiting factors for the study area is the minimum temperatures of the previous autumn-winter season (August-December), and this finding perfectly conforms to that in other territories. We reconstructed the previous August-December minimum temperature for 505 years, from 1509 to 2014. We found three cold periods (1650-1681, 1791-1853, 1865-1918) and four warm periods (1509-1529, 1562-1583, 1747-1781, and 1944-2014). These periods correlate well with reconstructed data for the Northern Hemisphere and the neighboring territories of China and Japan. Our reconstruction has 2-4, 9-,11, 48 and 189-year periods, which are in line with high-frequency fluctuations in ENSO, the short-term solar cycle, PDO fluctuations and the de-Vier quazi-200 solar activity cycle, respectively. We have confirmed the climatic response to solar activity, which corresponds to cold periods during the solar minimum. These comparisons show that our climatic reconstruction based on tree-ring chronology for this area may potentially provide a proxy record for long-term, large-scale past temperature patterns for northeast Asia. The reconstruction reflects the global traits and local variations in the climatic processes of the southern territory of the Russian Far East for more than the past 500 years.
