|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
Change of Chalaati Glacier (Georgian Caucasus) since the Little Ice Age based on dendrochronological and Beryllium-10 dataстатья
Статья опубликована в журнале из списка RSCI Web of Science
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из перечня ВАК
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 24 февраля 2021 г.
- Авторы: Tielidze L.G., Solomina O.N., Jomelli V., Dolgova E.A., Bushueva I.S., Mikhalenko V.N., Brauche R., ASTER Team
- Журнал: Лед и снег
- Том: 60
- Номер: 3
- Год издания: 2020
- Издательство: ФГБУ "Издательство "Наука"
- Местоположение издательства: Москва
- Первая страница: 453
- Последняя страница: 470
- DOI: 10.31857/S2076673420030052
- Аннотация: Glacier variations over the past centuries are still poorly documented on the southern slope of the Greater Caucasus. In this paper, the change of Chalaati Glacier in the Georgian Caucasus from its maximum extent during the Little Ice Age has been studied. For the first time in the history of glaciological studies of the Georgian Caucasus, 10Be in situ Cosmic Ray Exposure (CRE) dating was applied. The age of moraines was determined by tree-ring analysis. Lichenometry was also used as a supplementary tool to determine the relativeages of glacial landforms. In addition, the large-scale topographical maps (1887, 1960) were used along with the satellite imagery – Corona, Landsat 5 TM, and Sentinel 2B. Repeated photographs were used to identify the glacier extent in the late XIX and early XX centuries. 10Be CRE ages from the oldest lateral moraine of the Chalaati Glacier suggest that the onset of the Little Ice Age occurred ~0.73±0.04 kyr ago (CE ~1250–1330),while the dendrochronology and lichenometry measurements show that the Chalaati Glacier reached its secondary maximum extent again about CE ~1810. From that time through 2018 the glacier area decreased from 14.9±1.5 km2 to 9.9±0.5 km2 (33.8±7.4% or ~0.16% yr−1), while its length retreated by ~2280 m. The retreat rate was uneven: it peaked between 1940 and 1971 (~22.9 m yr−1), while the rate was slowest in 1910–1930 (~4.0 m yr−1). The terminus elevation rose from ~1620 m to ~1980 m above sea level in ~1810–2018.
- Добавил в систему: Михаленко Владимир Николаевич
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Tielidze_et_al._Izmeneniya_lednika_Chalaati_Gruzinskij_Kavk… | Tielidze_et_al._Izmeneniya_lednika_Chalaati_Gruzinskij_Kavk… | 5,4 МБ | 3 октября 2020 [Mikhalenko] |