Hydrometeorological conditions of Avacha Bay during the period of monitoring studies in 2013–2022
https://doi.org/10.15853/2072-8212.2024.75.5-21
EDN: UPVUPP
Abstract
Interannual variability of hydrometeorological conditions in Avacha Bay was analyzed on the basis of data obtained in the course of complex standard surveys in the period from 2013 to 2022. Steady excess of climatic norm for air temperature and precipitation is shown in the area mentioned throughout the entire period of the hydrological studies. The air temperature, however, experienced significant interannual fluctuations in the considered range of years, while precipitation levels increased noticeably only in the period from 2013 to 2015, and then there was a tendency to a slow decline with a minimum in 2022. The surface atmospheric pressure exceeded the multiyear average in summer and autumn, but was below it in winter. Ten-year averages of temperature, salinity, chlorophyll-α concentration, and oxygen saturation for April through October at 10 stations on standard horizons were calculated. Analysis of interannual variability of the temperature and salinity integral indices for the entire studied water column of Avacha Bay has demonstrated a gradual increase of heat content and a slight decrease of salinity.
About the Author
O. B. Tepnin
Kamchatka Branch of Russian Federal Research Institute of Fisheries and Oceanography (KamchatNIRO)
Russian Federation
Russian Federation
Oleg B. Tepnin – Head of Oceanography Division
Petropavlovsk-Kamchatsky
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Review
For citations:
Tepnin O.B. Hydrometeorological conditions of Avacha Bay during the period of monitoring studies in 2013–2022. The researches of the aquatic biological resources of Kamchatka and the North-West Part of the Pacific Ocean. 2024;(75):5-21. (In Russ.) https://doi.org/10.15853/2072-8212.2024.75.5-21. EDN: UPVUPP
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