Results 31 to 40 of about 236,154 (184)

Evaluation of the INM RAS climate model skill in climate indices and stratospheric anomalies on seasonal timescale

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2021
The study of winter seasonal predictability with the climate model INM-CM5-0 is presented. Initial conditions were produced using ERA-Interim reanalysis data for atmosphere, SODA3.4.2 reanalysis data for ocean and the bias-correction algorithm.
Vasilisa Vorobyeva, Evgeny Volodin
doaj   +1 more source

Evolution of the Magnetic Activity of the Single Giant OP Andromedae Between 1993 and 2025

open access: yesUniverse
We investigate the long-term magnetic variability of OP And, a magnetically active single K giant, between 1993 and 2025. To track magnetic activity, we analyze the variability of the Hα line and two lines of the calcium infrared triplet. The variability
Stefan Georgiev   +15 more
doaj   +1 more source

Pro-Pluvia Rogation Ceremonies in Extremadura (Spain): Are They a Good Proxy of Winter NAO?

open access: yesAtmosphere, 2020
Rogation ceremonies are religious requests to God. Pro-pluvia rogations were celebrated during dry conditions to ask God for rain. In this work, we have recovered 37 pro-pluvia rogations from 14 documentary sources (e.g.,: ecclesiastical manuscripts ...
Nieves Bravo-Paredes   +4 more
doaj   +1 more source

Investigation of the loading of hydraulic excavator working equipment

open access: yesГорное оборудование и электромеханика
The relevance of the work is determined by the need to increase the efficiency of hydraulic excavators, on which the cost of mining significantly depends.
Shestakov V.S.   +2 more
doaj   +1 more source

The record precipitation and flood event in Iberia in December 1876: description and synoptic analysis

open access: yesFrontiers in Earth Science, 2014
The first week of December 1876 was marked by extreme weather conditions that affected the south-western sector of the Iberian Peninsula, leading to an all-time record flow in two large international rivers.
Ricardo Machado Trigo   +7 more
doaj   +1 more source

Climate-induced signatures in the zooplankton communities: a meta-analysis at a European scale.

open access: yesFrontiers in Marine Science, 2014
Several recent studies have revealed the impacts of the climate variability in the dynamic of zooplankton in different estuarine ecosystems, imposing a need for more and continued global studies.
Sónia Cotrim Marques   +8 more
doaj   +1 more source

Optical Photometric Monitoring of the Blazar OT 355 and Local Standard Stars’ Calibration

open access: yesUniverse
OT 355 (4FGL J1734.3 + 3858) is a relatively rarely studied but highly variable, moderate-redshift (z = 0.975) flat-spectrum radio quasar (blazar). With this work, we aim to study its optical variability on different timescales, which can help us to ...
R. Bachev   +13 more
doaj   +1 more source

Tendencies in Climate Changes in Poland and Ukraine During the Last Centuries and Their Causes

open access: yesMiscellanea Geographica: Regional Studies on Development, 2008
The paper describes tendencies in changes of air temperature in Poland and Ukraine on the basis of a long series of measurements made in Warsaw (1779–2000), Cracow (1826–2000), Lviv (1824–2002) and Kiev (1812–2002). Air temperature in these cities in the
Boryczka Jerzy   +2 more
doaj   +1 more source

A New Phase of Optical Activity of BL Lacertae in the Fall of 2024: Intra-Night Flux and Polarization Variations

open access: yesUniverse
BL Lacertae is not only archetypical of an entire class of jet-dominated active galactic nuclei, blazars, but also one of the most active and rapidly changing objects in this class.
Rumen Bachev   +3 more
doaj   +1 more source

Climate and changing winter distribution of alcids in the Northwest Atlantic

open access: yesFrontiers in Ecology and Evolution, 2015
Population level impacts upon seabirds from changing climate are increasingly evident, and include effects on phenology, migration, dispersal, annual survivorship and reproduction.
Richard R. Veit, Lisa L. Manne
doaj   +1 more source

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