Описываются назначение, содержание, структура и особенности реализации информационной системы «Гейзеры Камчатки», разработанной в Институте вулканологии и сейсмологии ДВО РАН. Система содержит сведения об активных и погибших гейзерах и кипящих пульсирующих источниках Долины Гейзеров, кальдеры Узон, кальдеры Академии Наук и долины реки Паужетки. Информационная система обеспечивает сбор, хранение и представление информации о режиме активности гейзеров из литературных источников, архивных и современных данных, полученных с использованием визуальных и инструментальных методов наблюдений с 1934 г. по настоящее время. Система может представлять интерес как для научного сообщества, так и для широкого круга пользователей Интернет.

In 2020, in the caldera of Uzon volcano (Kamchatka Peninsula), electrical prospecting studies were carried out using the electrotomography method within the eastern thermal field near Shaman geyser. The geoelectric section is divided into three zones according to the level of electrical resistivity: relatively high-resistivity "cold" at the edges and relatively low resistivity «hot» in the center. The section of the “hot” zone, within which the Shaman geyser is located, is distinguished by anomalously low resistivity (less than 0.5 Ohm„m) at a depth of 5 to 20 m, which indicates the highest fracturing and fluid saturation of rocks in this location. Electrical monitoring was carried out above the geyser using the Omega-48 electrical tomography station and two cables 235 m and 47 m long. The first cable provided a survey depth of 60 m, the second one about 12 m. On the difference geoelectric sections based on the results of monitoring, four phases of the geyser operation are distinguished: filling, outpouring, spouting and steaming in the form of alternation of positive and negative anomalies of the electric field. Based on the results of areal measurements, it was possible to identify the channel channel to the geyser.

The total deep component natural mass discharge Qd (defined in terms of chloride mass discharge Qcl) of the Valley of Geysers, on an average ranges from 280 kg/s from 1961 to 1984, to 230 kg/s after 2015. Post 2012, discharge measurements reveal a seasonal variation: the discharge increases (340–370 kg/s) during the winterfrozen period, and decreases during the summer flooding period (≈100 kg/s). Long term annually averaged Qd is 274 kg/s, Qcl is 0.247 kg/s and heat flow is 265 MW. In the course of using high-frequency (min???? 1) observations specific conductance measurements from 2017 to 2020, the total natural discharge was found to be cycling due to the internal cycling of geysers. It was mostly sensitive to the Bolshoy and Velikan geysers with averaged intervals between eruptions of 60 min and 70 min, respectively. The tracer chloride method estimates the volume of hot water erupted from geysers. This method yielded the following estimates: 5–34 m3 of hot water cyclically erupted from the Bolshoy geyser; 0.5–4.5 m3 erupted from the Velikan geyser between 2018 and 2020, and 24–144 m3 erupted before the 2014 mud-flow disaster; and 289–330 m3 erupted from the Grot geyser between May–June 2012. The seasonal features of natural discharge mentioned above may be explained in terms of coldwater infiltration into a two-phase geyser geothermal reservoir, especially if gas-phase condensation induces vacuum conditions, which may further reduce some thermal discharge features.

В книге публикуются полевые дневники известного советского вулканолога,
основателя и первого директора Института вулканологии ДВО РАН на Камчатке,
члена-корреспондента Академии наук СССР Бориса Ивановича Пийпа (6.11.1906–10.03.1966), а также воспоминания о нем и его переписка. В книге описаны экспедиции 1931–1954 гг. на Ключевскую группу вулканов, на вулканы Авачинский, Шивелуч, Толбачик, в кальдеру Узон, на термальные ключи
Центральной и Северной Камчатки и на Курильские острова для изучения последствий цунами 1952 г.
Книга приурочена к 115-летию с даты рождения Б.И. Пийпа.