Zobrazeno 1 - 10
of 438
pro vyhledávání: '"A. Kozachek"'
Autor:
V. Mikhalenko, S. Kutuzov, P. Toropov, M. Legrand, S. Sokratov, G. Chernyakov, I. Lavrentiev, S. Preunkert, A. Kozachek, M. Vorobiev, A. Khairedinova, V. Lipenkov
Publikováno v:
Climate of the Past, Vol 20, Pp 237-255 (2024)
In this study, we present a seasonally resolved accumulation record spanning from 1750 to 2009 Common Era (CE), based on a 181.8 m ice core obtained from the Elbrus Western Plateau in the Caucasus. We implemented various methods to account for uncert
Externí odkaz:
https://doaj.org/article/2f78daf8208b466c8d3456fab2306777
Autor:
I. Thurnherr, A. Kozachek, P. Graf, Y. Weng, D. Bolshiyanov, S. Landwehr, S. Pfahl, J. Schmale, H. Sodemann, H. C. Steen-Larsen, A. Toffoli, H. Wernli, F. Aemisegger
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 5811-5835 (2020)
Stable water isotopologues (SWIs) are useful tracers of moist diabatic processes in the atmospheric water cycle. They provide a framework to analyse moist processes on a range of timescales from large-scale moisture transport to cloud formation, prec
Externí odkaz:
https://doaj.org/article/25861610e1e24f708adabec424bd3c2a
In this paper an adaptive state observer and parameter identification algorithm for a linear time-varying system are developed under condition that the state matrix of the system contains unknown time-varying parameters of a known form. The state vec
Externí odkaz:
http://arxiv.org/abs/2402.13772
Autor:
A. Kozachek, V. Mikhalenko, V. Masson-Delmotte, A. Ekaykin, P. Ginot, S. Kutuzov, M. Legrand, V. Lipenkov, S. Preunkert
Publikováno v:
Climate of the Past, Vol 13, Iss 5, Pp 473-489 (2017)
A 181.8 m ice core was recovered from a borehole drilled into bedrock on the western plateau of Mt El'brus (43°20′53.9′′ N, 42°25′36.0′′ E; 5115 m a.s.l.) in the Caucasus, Russia, in 2009 (Mikhalenko et al., 2015). Here, we report on th
Externí odkaz:
https://doaj.org/article/7ded7f8de4db4f6db9beced5f43dcd16
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Iss 5, Pp 3489-3505 (2017)
Black carbon (BC), emitted by fossil fuel combustion and biomass burning, is the second largest man-made contributor to global warming after carbon dioxide (Bond et al., 2013). However, limited information exists on its past emissions and atmospheric
Externí odkaz:
https://doaj.org/article/4a42b33493da4785b920e3c5f2b57476
Autor:
V. Mikhalenko, S. Sokratov, S. Kutuzov, P. Ginot, M. Legrand, S. Preunkert, I. Lavrentiev, A. Kozachek, A. Ekaykin, X. Faïn, S. Lim, U. Schotterer, V. Lipenkov, P. Toropov
Publikováno v:
The Cryosphere, Vol 9, Iss 6, Pp 2253-2270 (2015)
A 182 m ice core was recovered from a borehole drilled into bedrock on the western plateau of Mt. Elbrus (43°20´53.9'' N, 42°25´36.0'' E; 5115 m a.s.l.) in the Caucasus, Russia, in 2009. This is the first ice core in the region that represents a
Externí odkaz:
https://doaj.org/article/fdd82b47fc7944578fd5d74692e06fb6
The paper proposes an adaptive observer of the state vector of a nonlinear time varying system based on measurements of the output variable. The problem is solved under the assumption that the control matrix (vector) and the nonlinear component of th
Externí odkaz:
http://arxiv.org/abs/2305.15504
Problem of an adaptive state observer design for nonlinear system with unknown time-varying parameters and under condition of delayed measurements is considered. State observation problem was raised by many researchers (see for example Sanx et al. (2
Externí odkaz:
http://arxiv.org/abs/2211.08827
Problem of adaptive state observer synthesis for linear time-varying (LTV) system with unknown time-varying parameter and delayed output measurements is considered. State observation problem has attracted the attention of many researchers $[4]$. In t
Externí odkaz:
http://arxiv.org/abs/2207.07348
The article deals with the problem of synthesis of an adaptive observer of state variables of a linear time-varying SISO dynamic system. It is assumed that the control signal and the output variable are measurable. It is assumed that the state matrix
Externí odkaz:
http://arxiv.org/abs/2203.15391