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Evidence for two abrupt warming events of SST in the last century / C. A. Varotsos [et al.] // Theoretical and Applied Climatology. - 2013. - P1-10, DOI 10.1007/s00704-013-0935-8 . - ISSN 0177-798X
Аннотация: We have recently suggested that the warming in the sea surface temperature (SST) since 1900, did not occur smoothly and slowly, but with two rapid shifts in 1925/1926 and 1987/1988, which are more obvious over the tropics and the northern midlatitudes. Apart from these shifts, most of the remaining SST variability can be explained by the El Nino Southern Oscillation and the Pacific Decadal Oscillation (PDO). Here, we provide evidence that the timing of these two SST shifts (around 60В years) corresponds well to the quasi-periodicity of many natural cycles, like that of the PDO, the global and Northern Hemisphere annual mean temperature, the Atlantic Multi-decadal Oscillation, the Inter-Tropical Convergence Zone, the Southwest US Drought data, the length of day, the air surface temperature, the Atlantic meridional overturning circulation and the change in the location of the centre of mass of the solar system. In addition, we show that there exists a strong seasonal link between SST and ENSO over the tropics and the NH midlatitudes, which becomes stronger in autumn of the Northern Hemisphere. Finally, we found that before and after each SST shift, the intrinsic properties of the SST time series obey stochastic dynamics, which is unaffected by the modulation of these two shifts. In particular, the SST fluctuations for the time period between the two SST shifts exhibit 1/f-type long-range correlations, which are frequently encountered in a large variety of natural systems. Our results have potential implications for future climate shifts and crossing tipping points due to an interaction of intrinsic climate cycles and anthropogenic greenhouse gas emissions. В© 2013 Springer-Verlag Wien.

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Держатели документа:
Climate Research Group, Division of Environmental Physics and Meteorology, Faculty of Physics, University of Athens, University Campus Bldg. Phys. V, Athens, 15784, Greece
British Antarctic Survey, Natural Environment Research Council, Cambridge, United Kingdom
Institute of Biophysics, SB RAS, Russian Academy of Sciences, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Varotsos, C.A.; Franzke, C.L.E.; Efstathiou, M.N.; Degermendzhi, A.G.

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Carotenoids in bottom sediments of lake Shira as a paleoindicator for reconstruction of Lake States in Khakassiya, Russia / V. V. Zykov [et al.] // Contemporary Problems of Ecology. - 2012. - Vol. 5, Is. 4. - P434-442, DOI 10.1134/S199542551204018X . - ISSN 1995-4255
Кл.слова (ненормированные):
anaerobiosis -- bottom sediments -- holomixis -- meromixis -- okenone -- bacterium -- bioindicator -- biomarker -- carotenoid -- Holocene -- lacustrine deposit -- meromixis -- molecular analysis -- paleoclimate -- photoautotrophy -- reconstruction -- Khakassia -- Lake Shira -- Russian Federation
Аннотация: The concentrations of carotenoids buried in the bottom sediments of Lake Shira (Siberia, Khakassiya) have analyzed for the period of the last 2300 years. The bottom sediments were found to contain carotenoids, which are molecular markers of the corresponding groups of Phototrophic organisms. The bottom sediments of Lake Shira were shown to be a promising object for climate reconstructions of the Late Holocene in southern Siberia. В© 2012 Pleiades Publishing, Ltd.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 5, build. 50, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk 660041, Russian Federation
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Acedemika Koptyuga pr. 3, Novosibirsk 630090, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Zykov, V.V.; Rogozin, D.Y.; Kalugin, I.A.; Dar'in, A.V.; Degermendzhi, A.G.

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Principle of the worst scenario in the modelling past and future of biosphere dynamics / S. I. Bartsev, A. G. Degermendzhi, D. V. Erokhin // Ecological Modelling. - 2008. - Vol. 216, Is. 2. - P160-171, DOI 10.1016/j.ecolmodel.2008.03.002 . - ISSN 0304-3800
Кл.слова (ненормированные):
Irreversible biosphere changes -- Minimal model of biosphere -- The worst scenario principle -- Biospherics -- agricultural land -- anthropogenic effect -- atmosphere-biosphere interaction -- carbon dioxide -- deforestation -- Little Ice Age -- numerical model -- Eurasia -- Europe
Аннотация: The "biosphere-climate" system is subjected to different influences (influx of anthropogenic CO2 and pollutants, deforestation, harmful land management, biological species depopulation, etc.). Therefore, the vital question arises: "Can these influences lead to irreversible negative changes in the climate-biosphere system or a global ecological catastrophe?" The possibility of irreversible changes may be not very high, but one cannot ignore it. So the main aim of our investigation is to evaluate possible consequences of human impact on the biosphere focusing on irreversible changes of it. Traditional mathematical complicated models describe the biosphere in great detail, but the large number of equations and parameters leads to accumulation of uncertainties in the forecast due to inevitable uncertainties of experimental estimations of model parameters. An approach based on the principle of the worst scenario was proposed. Minimization of mathematical model with respect to this principle is conducted to study limiting (but possible) versions of models in which the contribution of the possible compensatory and smoothing mechanisms is minimal. Namely the most unfavorable scenarios (corresponding to the values of parameters at the boundaries of confidence interval) have to be considered in estimating consequences of anthropogenic impact. One of the fastest CO2 releasing mechanisms, based on the positive feedback effect, was considered in the context of the worst scenario principle. The family of simple mathematical models was created for biosphere dynamics representation on different timescales. The main result of the investigation consists in confirmation of the possibility of negative and irreversible changes in the "biosphere-climate" system, caused by amplification of the positive feedback: "anthropogenic emission of CO2 - temperature increase - additional CO2 emission due to decomposition of soil organics". Crucial parameters of models, responsible for avalanche-like biosphere changes, are determined. A realizability of hypotheses on anthropogenic causes of Little Ice Age was estimated by corresponding minimal model. Model were used to show the feasibility of the mechanism describing the changing of agricultural field species into indigenous forests in Europe during the Plague, which led to CO2 decrease and temperature fall. В© 2008 Elsevier B.V. All rights reserved.

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Держатели документа:
Institute of Biophysics SB RAS, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bartsev, S.I.; Degermendzhi, A.G.; Erokhin, D.V.

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Global minimal model of perennial dynamics of carbon in biosphere / S. I. Bartsev, A. G. Degermendzhi, D. V. Erokhin // Doklady Akademii Nauk. - 2005. - Vol. 401, Is. 2. - С. 233-237 . - ISSN 0869-5652
Кл.слова (ненормированные):
Atmospheric temperature -- Carbon -- Climatology -- Ecology -- Greenhouse effect -- Thermal effects -- Biosphere -- Carbon perennial dynamics -- Biology
Аннотация: The suggested model is not intended for describing most probable biosphere dynamics but only for estimating the possibility of catastrophic variant of biosphere dynamics development at antropogenic CO2 emission into atmosphere due to different temperature dependences for key biological biosphere component growth. The main result is demonstration of the possibility of irreversible climate changes and biosphere destruction resulting from interaction of biological processes with greenhouse effect.

Scopus
Держатели документа:
Inst. Biofiziki SO RAN, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bartsev, S.I.; Degermendzhi, A.G.; Erokhin, D.V.

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Global minimal model of long-term carbon dynamics in the biosphere / S. I. Bartsev, A. G. Degermendzhi, D. V. Erokhin // Doklady Earth Sciences. - 2005. - Vol. 401, Is. 2. - P326-329 . - ISSN 1028-334X
Кл.слова (ненормированные):
carbon cycle -- climate change
Аннотация: Thus, our model demonstrates the possibility of irreversible climatic changes as well as climate and biosphere destruction owing to the interaction between biological processes and the greenhouse effect. The simplicity of the model renders it susceptible to criticism from the standpoint of a maximal exact forecast of biosphere dynamics. However, the development of a unique scenario of expected global changes is rendered extremely unrealistic by the fundamental inaccuracy of estimates of global parameters and the uncertainty of economic forecasts. The development of a series of global dynamics scenarios that vary in degree of optimism seems more appropriate. The most attractive of these are scenarios based on estimates corresponding to the most unfavorable boundaries of confidence intervals. Conditions for the realization of precisely such scenarios should be tested first. Copyright В© 2005 by Pleiades Publishing, Inc.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bartsev, S.I.; Degermendzhi, A.G.; Erokhin, D.V.

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Challenges and opportunities for integrating lake ecosystem modelling approaches / W. M. Mooij [et al.] // Aquatic Ecology. - 2010. - Vol. 44, Is. 3. - P633-667, DOI 10.1007/s10452-010-9339-3 . - ISSN 1386-2588
Кл.слова (ненормированные):
Adaptive processes -- Analysis -- Aquatic -- Bifurcation -- Biodiversity -- Climate warming -- Community -- Eutrophication -- Fisheries -- Food web dynamics -- Freshwater -- Global change -- Hydrology -- Lake -- Management -- Marine -- Mitigation -- Model integration -- Model limitations -- Non-linear dynamics -- Nutrients -- Plankton -- Population -- Prediction -- Spatial -- Understanding -- adaptive management -- algorithm -- aquatic community -- biodiversity -- ecosystem modeling -- eutrophication -- fishery production -- food web -- fuzzy mathematics -- global warming -- hydrology -- lake ecosystem -- mitigation -- model test -- numerical model -- nutrient availability -- plankton -- prediction -- saline lake -- spatial analysis
Аннотация: A large number and wide variety of lake ecosystem models have been developed and published during the past four decades. We identify two challenges for making further progress in this field. One such challenge is to avoid developing more models largely following the concept of others ('reinventing the wheel'). The other challenge is to avoid focusing on only one type of model, while ignoring new and diverse approaches that have become available ('having tunnel vision'). In this paper, we aim at improving the awareness of existing models and knowledge of concurrent approaches in lake ecosystem modelling, without covering all possible model tools and avenues. First, we present a broad variety of modelling approaches. To illustrate these approaches, we give brief descriptions of rather arbitrarily selected sets of specific models. We deal with static models (steady state and regression models), complex dynamic models (CAEDYM, CE-QUAL-W2, Delft 3D-ECO, LakeMab, LakeWeb, MyLake, PCLake, PROTECH, SALMO), structurally dynamic models and minimal dynamic models. We also discuss a group of approaches that could all be classified as individual based: super-individual models (Piscator, Charisma), physiologically structured models, stage-structured models and trait-based models. We briefly mention genetic algorithms, neural networks, Kalman filters and fuzzy logic. Thereafter, we zoom in, as an in-depth example, on the multi-decadal development and application of the lake ecosystem model PCLake and related models (PCLake Metamodel, Lake Shira Model, IPH-TRIM3D-PCLake). In the discussion, we argue that while the historical development of each approach and model is understandable given its 'leading principle', there are many opportunities for combining approaches. We take the point of view that a single 'right' approach does not exist and should not be strived for. Instead, multiple modelling approaches, applied concurrently to a given problem, can help develop an integrative view on the functioning of lake ecosystems. We end with a set of specific recommendations that may be of help in the further development of lake ecosystem models. В© 2010 The Author(s).

Scopus
Держатели документа:
Netherlands Institute of Ecology (NIOO-KNAW), Department of Aquatic Ecology, Rijksstraatweg 6, 3631 AC Nieuwersluis, Netherlands
Aarhus University, National Environmental Research Institute, Department of Freshwater Ecology, 8600 Silkeborg, Denmark
Greenland Climate Research Centre (GCRC), Greenland Institute of Natural Resources, Kivioq 2, P.O. Box 570, 3900 Nuuk, Greenland
University of Toronto, Department of Physical and Environmental Sciences, Toronto, ON M1C 1A4, Canada
Institute of Computational Modelling (SB-RAS), Siberian Federal University, 660036 Krasnoyarsk, Russian Federation
Tanzania Fisheries Research Institute (TAFIRI), Mwanza Centre, P.O. Box 475, Mwanza, Tanzania
Institute of Biophysics (SB-RAS), Akademgorodok, 660036 Krasnoyarsk, Russian Federation
University of Miami, Florida Integrated Science Centre, USGS, Coral Gables, FL 33124, United States
Wageningen University, Department of Aquatic Ecology and Water Quality, P.O. Box 47, 6700 AA Wageningen, Netherlands
Centre for Ecology and Hydrology, Lancaster Environment Centre, Lake Ecosystem Group, Algal Modelling Unit, Bailrigg, Lancaster LA1 4AP England, United Kingdom
Federal University of Alagoas, Centre for Technology, Campus A.C. Simoes, 57072-970 Maceio-AL, Brazil
Institute of Biochemistry and Biology, Department of Ecology and Ecosystem Modelling, University of Potsdam, Am Neuen Palais 10, 14469 Potsdam, Germany
Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment, P.O. Box 7050, 75007 Uppsala, Sweden
University of Waikato, Centre for Biodiversity and Ecology Research, Private Bag 3105, Hamilton, New Zealand
University of Western Australia, School of Earth and Environment, Crawley, WA 6009, Australia
Technische Universitat Dresden, Institute of Hydrobiology, 01062 Dresden, Germany
Technische Universitat Dresden, Neunzehnhain Ecological Station, Neunzehnhainer Str. 14, 09514 Lengefeld, Germany
Deltares, P.O. Box 177, 2600 MH Delft, Netherlands
Technion-Israel Institute of Technology, Faculty of Civil and Environmental Engineering, Technicon City, Haifa 32000, Israel
Helmholtz Centre for Environmental Research, Department of Lake Research, Brueckstrasse 3a, 39114 Magdeburg, Germany
Witteveen and Bos, P.O. Box 233, 7400 AV Deventer, Netherlands
University of Oslo, Department of Biology, P.O. Box 1066, Blindern, 0316 Oslo, Norway
UNESCO-IHE Institute of Water Education, 2601 DA Delft, Netherlands
Portland State University, Department of Civil and Environmental Engineering, Portland, OR 97207, United States
Netherlands Environmental Assessment Agency (PBL), P.O. Box 303, 3720 AH Bilthoven, Netherlands : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Mooij, W.M.; Trolle, D.; Jeppesen, E.; Arhonditsis, G.; Belolipetsky, P.V.; Chitamwebwa, D.B.R.; Degermendzhy, A.G.; DeAngelis, D.L.; De Senerpont Domis, L.N.; Downing, A.S.; Elliott, J.A.; Fragoso Jr., C.R.; Gaedke, U.; Genova, S.N.; Gulati, R.D.; Hakanson, L.; Hamilton, D.P.; Hipsey, M.R.; 't Hoen, J.; Hulsmann, S.; Los, F.H.; Makler-Pick, V.; Petzoldt, T.; Prokopkin, I.G.; Rinke, K.; Schep, S.A.; Tominaga, K.; van Dam, A.A.; van Nes, E.H.; Wells, S.A.; Janse, J.H.

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Degradation of polyhydroxyalkanoates in eutrophic reservoir / T. G. Volova [et al.] // Polymer Degradation and Stability. - 2007. - Vol. 92, Is. 4. - P580-586, DOI 10.1016/j.polymdegradstab.2007.01.011 . - ISSN 0141-3910
Кл.слова (ненормированные):
16S rDNA -- Degradation -- DGGE -- Polyhydroxyalkanoates -- Reservoir -- Biodegradation -- Climate change -- Ecosystems -- Eutrophication -- Genetic engineering -- Physical chemistry -- Eutrophic reservoir -- Phylogenetic analysis -- Physicochemical properties -- Polyhydroxyalkanoates -- Organic polymers
Аннотация: During the summers of 1999-2001 the dynamics of polyhydroxyalkanoate degradation in a small recreational eutrophic reservoir was studied experimentally. It has been shown that biodegradation of polyhydroxyalkanoates in the environment is determined by the structure and physicochemical properties of the polymer and by local weather conditions, which influence the state of the aquatic ecosystem. Species (clones) of bacteria able to utilize polyhydroxyalkanoates in the reservoir were identified using molecular phylogenetic analysis of 16S rRNA genes. В© 2007 Elsevier Ltd. All rights reserved.

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Держатели документа:
Siberian Federal University, Svobodny av. 79, Krasnoyarsk, 660041, Russian Federation
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Volova, T.G.; Gladyshev, M.I.; Trusova, M.Y.; Zhila, N.O.

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Effect of temperature on contents of essential highly unsaturated fatty acids in freshwater zooplankton / M. I. Gladyshev [et al.] // Limnologica. - 2011. - Vol. 41, Is. 4. - P339-347, DOI 10.1016/j.limno.2011.03.001 . - ISSN 0075-9511
Кл.слова (ненормированные):
Cladocerans -- Copepods -- Essential polyunsaturated fatty acids -- Freshwater zooplankton -- Water temperature -- biomass -- climate effect -- community structure -- fatty acid -- freshwater ecosystem -- gas chromatography -- lake ecosystem -- multivariate analysis -- seston -- taxonomy -- temperature effect -- trophic level -- zooplankton -- Animalia -- Copepoda -- Crustacea
Аннотация: In 11 lakes from cold and warm regions we studied the content of highly unsaturated fatty acids (HUFA) in seston (<130?m) and crustacean zooplankton using gas chromatography-mass spectrometry. An increase of temperature correlated with a decrease of HUFA content in zooplankton. A multivariate canonical correlation analyses revealed, that the decrease of HUFA content was related with a decrease of per cent of copepods in zooplankton communities, which are known to have higher HUFA levels in their biomass, than cladocerans. This means that temperature primarily affected the HUFA levels indirectly, via changing of taxonomic structure of zooplankton community, while the homeoviscous adaptation of zooplankton individuals had comparatively lower importance. As found, water temperature was better predictor of HUFA contents of zooplankton, than the fatty acid composition of seston. Thus, it can be predicted, that a probable climate warming will decrease the content of the essential HUFA in freshwater zooplankton with possible negative consequences for animals of higher trophic levels. В© 2011 Elsevier GmbH.

Scopus
Держатели документа:
Institute of Biophysics of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Svobodny av. 79, Krasnoyarsk 660041, Russian Federation
Scientific and Practical Center of the National Academy of Sciences of Belarus on Bioresources, 27 Akademicheskaya Str., 220072 Minsk, Belarus
Inst. of Biology of Komi Scientific Center of Ural Division of Russian Academy of Sciences, 28 Kommunisticheskaya Str., Syktyvkar 167982, Russian Federation
Kamchatka Research Inst. of Fisheries and Oceanography, Naberezhnaya 18, Petropavlovsk-Kamchatskii 683602, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gladyshev, M.I.; Semenchenko, V.P.; Dubovskaya, O.P.; Fefilova, E.B.; Makhutova, O.N.; Buseva, Z.F.; Sushchik, N.N.; Razlutskij, V.I.; Lepskaya, E.V.; Baturina, M.A.; Kalachova, G.S.; Kononova, O.N.

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Comparison of fatty acid contents and composition in major lipid classes of larvae and adults of mosquitoes (Diptera: Culicidae) from a steppe region / N. N. Sushchik [et al.] // Insect Science. - 2013. - Vol. 20, Is. 5. - P585-600, DOI 10.1111/j.1744-7917.2012.01582.x . - ISSN 1672-9609
Кл.слова (ненормированные):
Amphibiotic insects -- Essential fatty acids -- Metamorphosis -- Mosquitoes -- Short-chain polyunsaturated fatty acids
Аннотация: Emerging aquatic insects, including mosquitoes, are known to transfer to terrestrial ecosystems specific essential biochemicals, such as polyunsaturated fatty acids (PUFA). We studied fatty acid (FA) composition and contents of dominant mosquito populations (Diptera: Culicidae), that is, Anopheles messeae, Ochlerotatus caspius, Oc. flavescens, Oc. euedes, Oc. subdiversus, Oc. cataphylla, and Aedes cinereus, inhabited a steppe wetland of a temperate climate zone to fill up the gap in their lipid knowledge. The polar lipid and triacylglycerol fractions of larvae and adults were compared. In most studied mosquito species, we first found and identified a number of short-chain PUFA, for example, prominent 14:2n-6 and 14:3n-3, which were not earlier documented in living organisms. These PUFA, although occurred in low levels in adult mosquitoes, can be potentially used as markers of mosquito biomass in terrestrial food webs. We hypothesize that these acids might be synthesized (or retroconverted) by the mosquitoes. Using FA trophic markers accumulated in triacylglycerols, trophic relations of the mosquitoes were accessed. The larval diet comprised green algae, cryptophytes, and dinoflagellates and provided the mosquitoes with essential n-3 PUFA, linolenic, and eicosapentaenoic acids. As a result, both larvae and adults of the studied mosquitoes had comparatively high content of the essential PUFA. Comparison of FA proportions in polar lipids versus storage lipids shown that during mosquito metamorphosis transfer of essential eicosapentaenoic and arachidonic acids from the reserve in storage lipids of larvae to functional polar lipids in adults occurred. В© 2012 Institute of Zoology, Chinese Academy of Sciences.

Scopus
Держатели документа:
Institute of Biophysics of Siberian Branch of Russian Academy of Sciences, Akademgorodok, 50/50, Krasnoyarsk, Russian Federation
Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Systematics, Ecology of Animals of Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Sushchik, N.N.; Yurchenko, Y.A.; Gladyshev, M.I.; Belevich, O.E.; Kalachova, G.S.; Kolmakova, A.A.

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10.

A study of forest vegetation dynamics in the south of the Krasnoyarskii Krai in spring / M. Chernetskiy [et al.] // Advances in Space Research. - 2011. - Vol. 48, Is. 5. - P819-825, DOI 10.1016/j.asr.2011.04.032 . - ISSN 0273-1177
Кл.слова (ненормированные):
EVI -- Forestry -- MODIS -- NDVI -- Remote sensing -- Vegetation phenology -- Accurate measurement -- Annual time series -- Carbon exchange -- Data series -- Dynamic state -- Enhanced vegetation index -- EVI -- Forest vegetation -- Global scale -- Growth dynamics -- Interannual variability -- Moderate resolution imaging spectroradiometer -- MODIS -- NDVI -- Normalized difference vegetation index -- Principal components analysis -- Remote sensing applications -- Remote sensing data -- Satellite data -- Spatial structure -- Spring season -- Terrestrial ecosystems -- Vegetation dynamics -- Vegetation phenology -- Biology -- Climate models -- Dynamics -- Ecosystems -- Estimation -- Forestry -- Monitoring -- Principal component analysis -- Radiometers -- Remote sensing -- Satellite imagery -- Timber -- Time series -- User interfaces -- Vegetation -- Carbon -- Ecosystems -- Forests -- Image Analysis -- Plants -- Remote Sensing -- Time Series Analysis
Аннотация: Remote sensing applications have greatly enhanced ability to monitor and manage in the areas of forestry. Accurate measurements of regional and global scale vegetation dynamics (phenology) are required to improve models and understanding of inter-annual variability in terrestrial ecosystem carbon exchange and climate-biosphere interactions. Study of vegetation phenology is required for understanding of variability in ecosystem. In this paper, monitoring of vegetation dynamics using time series of satellite data is presented. Vegetation variability (vegetation rate) in different topoclimatic areas is investigated. Original software using IDL interactive language for processing of satellite long-term data series was developed. To investigate growth dynamics vegetation rate inferred from remote sensing was used. All estimations based on annual time series of Moderate Resolution Imaging Spectroradiometer (MODIS) imagery. Vegetation rate for Enhanced Vegetation Index (EVI) and Normalized Difference Vegetation Index (NDVI) was calculated using MODIS data. The time series covers spring seasons of each of 9 years, from 2000 to 2008. Comparison of EVI and NDVI derived growth rates has shown that NDVI derived rates reveal spatial structure better. Using long-term data of vegetation rates variance was estimated that helps to reveal areas with anomalous growth rate. Such estimation shows sensitivity degree of different areas to different topoclimatic conditions. Woods of heights depend on spatial topoclimatic variability unlike woods of lowlands. Principal components analysis shows vegetation with different rate conditions. Also it reveals vegetation of same type in areas with different conditions. It was demonstrated that using of methods for estimating the dynamic state of vegetation based on remote sensing data enables successful monitoring of vegetation phenology. В© 2011 COSPAR. Published by Elsevier Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics of SB RAS, Akademgorodok 50/50, Krasnoyarsk 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Chernetskiy, M.; Pasko, I.; Shevyrnogov, A.; Slyusar, N.; Khodyayev, A.

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11.

Trends of chlorophyll concentration in the surface layer of the Northern and Central Atlantic, a satellite data-based study / A. Shevyrnogov, G. Vysotskaya, E. Shevyrnogov // Advances in Space Research. - 2002. - Vol. 30, Is. 11. - P2535-2540, DOI 10.1016/S0273-1177(02)80332-5 . - ISSN 0273-1177
Кл.слова (ненормированные):
Chlorophyll -- Climatology -- Data reduction -- Ocean engineering -- Satellites -- Surface properties -- Chlorophyll concentration -- Space research -- chlorophyll -- pigment -- remote sensing -- seasonality -- surface water -- Atlantic Ocean
Аннотация: The new data on anomalies in seasonal dynamics of chlorophyll concentration in the ocean have altered the approach to the analysis of long-term trends of phytopigments in the surface layer of the ocean. Zones have been found in which at various times there was a many-fold increase in chlorophyll concentration versus its usual level. These changes are local in time and space. If anomalies in the long-term tendencies in the change of phytopigment surface distribution in the ocean are ignored in the analysis, the resulting picture will inadequately reflect the real processes. The work presents the results of the analysis of long-term trends of chlorophyll concentration on the basis of the CZCS satellite data in the Atlantic Ocean. The results are given as maps representing different variants of trends. The data obtained can be used to analyze the consequences of long-term changes of climate and changes in the interaction between the atmosphere and the ocean. В©2002 COSPAR. Published by Elsevier Science Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics of SB RAS, Krasnoyarsk, Russian Federation
Inst. of Comp. Modelling of SB RAS, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Shevyrnogov, A.; Vysotskaya, G.; Shevyrnogov, E.

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12.

Seasonal and centennial cycles of carbonate mineralisation during the past 2500 years from varved sediment in Lake Shira, South Siberia / I. Kalugin [et al.] // Quaternary International. - 2013. - Vol. 290-291. - P245-252, DOI 10.1016/j.quaint.2012.09.016 . - ISSN 1040-6182
Кл.слова (ненормированные):
biochemistry -- carbonate -- environmental factor -- lacustrine deposit -- mineralization -- paleoenvironment -- pH -- salinity -- sediment chemistry -- temperature effect -- varve -- Khakassia -- Lake Shira -- Russian Federation -- Siberia
Аннотация: Shira Lake is a good representative object for detail weather-climate modeling due to its local hydroclimatic information and annually laminated bottom sediments. Carbonate biochemical mineralization in Shira Lake shows not only seasonal but also centennial pulses over each 450-500 years. An age-depth model has been built by layer counting combined with 137Cs and 14C isotopic dates. Thermodynamic estimation of the rock-water multisystem in conformity with local conditions and source matter provides grounds for interpretation of measured geochemical parameters in sediments including environmental indicators such as temperature, salinity, and pH. Scanning X-ray fluorescence for sub-millimeter microstratigraphic study of varves connects geochemical oscillations of microelement content (Rb, Ti, Ca, Sr, Br, XRD) with seasonality, as well as revealing centennial pulses of environmental change. Quantitative environmental reconstruction using multiple regression for precipitation calibrated by hydrometeorological time series year by year was carried out for the lake over the last 2500 years. В© 2012 Elsevier Ltd and INQUA.

Scopus
Держатели документа:
Siberian Branch of Russian Academy of Science, Institute of Geology and Mineralogy, Prospekt akademika Koptyuga 3, 630090 Novosibirsk, Russian Federation
Institute of Biophysics, Siberian Branch of Russian Academy of Science, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kalugin, I.; Darin, A.; Rogozin, D.; Tretyakov, G.

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13.

Influence of biota on global climate / D. A. Semenov, R. G. Khlebopros // Biophysics. - 2005. - Vol. 50, Is. 4. - P659-662 . - ISSN 0006-3509
Кл.слова (ненормированные):
Biosphere -- Climate -- CO2 balance -- Energy balance -- Modeling
Аннотация: A model consisting of two blocks (equations) is proposed for the analytical study of the biosphere-climate system over great periods of time. The first equation describes the balance of carbon dioxide in the atmosphere and represents the biological block of the model. The second equation is the equation of energy balance or the physical block of the system. The model is based on the most general concepts of living matter and the evolution process. A possible interpretation of some events and phenomena in the Earth history is given in terms of the model. Copyright В© 2005 by MAIK "Nauka/ Interperiodica".

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Semenov, D.A.; Khlebopros, R.G.

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14.

Biophysical aspects of the biosphere impact on global climate. / D. A. Semenov, R. G. Khlebopros // Doklady. Biochemistry and biophysics. - 2002. - Vol. 387. - P338-339 . - ISSN 1607-6729
Кл.слова (ненормированные):
carbon monoxide -- article -- atmosphere -- biophysics -- chemistry -- climate -- greenhouse effect -- kinetics -- temperature -- theoretical model -- Atmosphere -- Biophysics -- Carbon Monoxide -- Climate -- Greenhouse Effect -- Kinetics -- Models, Theoretical -- Temperature

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036 Russia. : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Semenov, D.A.; Khlebopros, R.G.

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15.

The biosphere trigger mechanism in the minimal model for the global carbon cycle of the Earth / S. I. Bartsev [et al.] // Dokl. Earth Sci. - 2012. - Vol. 443, Is. 2. - P489-492, DOI 10.1134/S1028334X12040010. - Cited References: 15. - This work was supported by the Siberian Branch, Russian Academy of Sciences, Integration Project no. 50. . - 4. - ISSN 1028-334X

РУБ Geosciences, Multidisciplinary
Рубрики:
CLIMATE

Держатели документа:
[Bartsev, S. I.
Degermendzhi, A. G.] Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia
[Fedotov, A. M.
Medvedev, S. B.
Pestunov, A. I.
Pestunov, I. A.] Russian Acad Sci, Siberian Branch, Inst Computat Technol, Krasnoyarsk 660090, Russia : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bartsev, S.I.; Degermendzhi, A.G.; Fedotov, A.M.; Medvedev, S.B.; Pestunov, A.I.; Pestunov, I.A.

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16.

Time-space structure and variability of surface temperature frontal zones in the ocean (based on AVHRR satellite data) / A. V. Kartushinsky // Advances in Space Research. - 2000. - Vol. 25, Is. 5. - P1107-1110, DOI 10.1016/S0273-1177(99)00871-6 . - ISSN 0273-1177
Кл.слова (ненормированные):
AVHRR -- frontal feature -- global ocean -- sea surface temperature -- spatiotemporal analysis
Аннотация: Satellite monitoring of large-scale ocean fields allows collection and analyse of information on dynamics processes in various areas of the ocean. Investigation of the World Ocean processes involves the determination of space-time changes of sea surface temperature (SST). Water temperature of the ocean is one of major characteristics of surface water masses. Distribution of water temperature depends not only on regional climate peculiarities but also on formation of high gradient temperature zones. These zones emerge due to interaction of different current structure, circulation and eddies. Some more important characteristics of such zones are space dimensions and time of existence (lifetime). Space-time scales of the above structure have not been investigated in detail. The aim of the paper is to study space-time changes of the surface temperature frontal zones and frontal partitions in the ocean by AVHRR satellite information.

Scopus
Держатели документа:
Institute of Biophysics (Russian Academy of Sciences, Siberian Branch), Academgorodok, Krasnoyarsk, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kartushinsky, A.V.

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17.

The investigation on the dynamics of frontal zones in the ocean based on the numerical modelling, using the AVHRR satellite data [Text] / A. V. Kartushinsky ; ed. P Schlussel [et al.] // CLIMATE CHANGE PROCESSES IN THE STRATOSPHERE, EARTH-ATMOSPHERE-OCEAN SYSTEMS, AND OCEANOGRAPHIC PROCESSES FROM SATELLITE DATA. Ser. ADVANCES IN SPACE RESEARCH : PERGAMON-ELSEVIER SCIENCE LTD, 2004. - Vol. 33: 2nd World Space Congress/34th COSPAR Scientific Assembly (OCT 10-19, 2002, HOUSTON, TX), Is. 7. - P1173-1178, DOI 10.1016/S0273-1177(03)00370-3. - Cited References: 19 . - 6. - ISBN 0273-1177

РУБ Engineering, Aerospace + Astronomy & Astrophysics + Environmental Sciences + Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences + Remote Sensing
Рубрики:
VARIABILITY
Кл.слова (ненормированные):
frontal temperature zones -- model -- numerical experiments -- current velocity -- turbulent diffusion -- heat flow
Аннотация: The main purpose of the work is to investigate the frontal temperature zones using the mathematical model of the oceanic temperature field. The forecast of the frontal temperature zone variability is based on satellite data. The model calculates the temperature under different starting conditions and allows for the mean monthly intensity of solar radiation, components of current velocities, and turbulent diffusion. The input data are the mean monthly current velocities and the radiation heat flows. The model is used to calculate the dynamics of the frontal temperature zones in separate parts of the ocean. Based on the results of numerical experiments presented in the paper we estimated the spatial and temporal ranges of the frontal zone variation affected by the advection of currents, horizontal turbulent heat exchange, and the radiation heat flow in separate parts of the ocean. As examples we consider the basic frontal zones in the Atlantic and the Pacific Oceans. The work also shows possible applications of parametrization of spatial horizontal components of the frontal zones functionally related to the processes of heat advection and diffusion in the absence of exact information about the magnitudes of the current velocities and turbulent mixing. (C) 2003 COSPAR. Published by Elsevier Ltd. All rights reserved.

Держатели документа:
Krasnoyarsk State Univ, Inst Biophys, Russian Acad Sci, Krasnoyarsk 660036, Russia : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kartushinsky, A.V.; Schlussel, P \ed.\; Stuhlmann, R \ed.\; Campbell, JW \ed.\

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18.

Zooplankton carcasses and non-predatory mortality in freshwater and inland sea environments [Text] / K. W. Tang [et al.] // J. Plankton Res. - 2014. - Vol. 36, Is. 3. - P597-612, DOI 10.1093/plankt/fbu014. - Cited References: 168. - This work was supported by the Humboldt Foundation (Fellowship for Experienced Researchers to K. W. T.); Siberian Branch of Russian Academy of Science (Partner Project No. 8 to M. I. G. and O.P.D.); Federal Tasks of Ministry of Education and Science of Russian Federation (project B-15 of Siberian Federal University to M. I. G.); the Leibniz-Association (SAW-2011-IGB-2 to G. K.); and the German Science foundation (KI-853/7-1 to G. K., GR1540/20-1 to H. P. G.). The manuscript benefited from the constructive comments from three reviewers. . - ISSN 0142-7873. - ISSN 1464-3774

РУБ Marine & Freshwater Biology + Oceanography
Рубрики:
SMALL-SCALE TURBULENCE
   NON-CALANOID COPEPODS
   AGGREGATES LAKE SNOW
   DAPHNIA-GALEATA
   MIDSUMMER DECLINE
   NONCONSUMPTIVE MORTALITY
   CRUSTACEAN ZOOPLANKTON
   CLIMATE-CHANGE
   VERTICAL-DISTRIBUTION
   POPULATION-GROWTH
Кл.слова (ненормированные):
carbon flux -- inland waters -- lakes -- live -- dead sorting -- non-predatory mortality -- zooplankton carcasses
Аннотация: Zooplankton carcasses are ubiquitous in marine and freshwater systems, implicating the importance of non-predatory mortality, but both are often overlooked in ecological studies compared with predatory mortality. The development of several microscopic methods allows the distinction between live and dead zooplankton in field samples, and the reported percentages of dead zooplankton average 11.6 (minimum) to 59.8 (maximum) in marine environments, and 7.4 (minimum) to 47.6 (maximum) in fresh and inland waters. Common causes of non-predatory mortality among zooplankton include senescence, temperature change, physical and chemical stresses, parasitism and food-related factors. Carcasses resulting from non-predatory mortality may undergo decomposition leading to an increase in microbial production and a shift in microbial composition in the water column. Alternatively, sinking carcasses may contribute significantly to vertical carbon flux especially outside the phytoplankton growth seasons, and become a food source for the benthos. Global climate change is already altering freshwater ecosystems on multiple levels, and likely will have significant positive or negative effects on zooplankton non-predatory mortality. Better spatial and temporal studies of zooplankton carcasses and non-predatory mortality rates will improve our understanding of this important but under-appreciated topic.

WOS
Держатели документа:
[Tang, Kam W.] Virginia Inst Marine Sci, Coll William & Mary, Gloucester Point, VA 23062 USA
[Tang, Kam W.] Swansea Univ, Dept Biosci, Swansea SA2 8PP, W Glam, Wales
[Gladyshev, Michail I.
Dubovskaya, Olgo P.] Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia
[Gladyshev, Michail I.
Dubovskaya, Olgo P.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Kirillin, Georgiy] Leibniz Inst Freshwater Ecol & Inland Fisheries, Dept Ecohydrol, D-12587 Berlin, Germany
[Grossart, Hans-Peter] Leibniz Inst Freshwater Ecol & Inland Fisheries, Dept Expt Limmol, D-16775 Stechlin, Germany
[Grossart, Hans-Peter] Univ Potsdam, Inst Biochem & Biol, D-14469 Potsdam, Germany
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Tang, K.W.; Gladyshev, M.I.; Dubovskaya, O.P.; Kirillin, G...; Grossart, H.P.; Humboldt Foundation; Ministry of Education and Science of Russian Federation (Siberian Federal University) [B-15]; Leibniz-Association [SAW-2011-IGB-2]; German Science foundation [KI-853/7-1, GR1540/20-1]

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19.

Evidence for two abrupt warming events of SST in the last century [Text] / C. A. Varotsos [et al.] // Theor. Appl. Climatol. - 2014. - Vol. 116, Is. 1-2. - P51-60, DOI 10.1007/s00704-013-0935-8. - Cited References: 60 . - ISSN 0177-798X. - ISSN 1434-4483

РУБ Meteorology & Atmospheric Sciences
Рубрики:
SCALING BEHAVIOR
   OZONE DEPLETION
   PERMAFROST THAW
   CLIMATE SYSTEM
   AIR-POLLUTION
   LONG-MEMORY
   TEMPERATURE
   OSCILLATION
   VARIABILITY
   DYNAMICS
Аннотация: We have recently suggested that the warming in the sea surface temperature (SST) since 1900, did not occur smoothly and slowly, but with two rapid shifts in 1925/1926 and 1987/1988, which are more obvious over the tropics and the northern midlatitudes. Apart from these shifts, most of the remaining SST variability can be explained by the El Nio Southern Oscillation and the Pacific Decadal Oscillation (PDO). Here, we provide evidence that the timing of these two SST shifts (around 60 years) corresponds well to the quasi-periodicity of many natural cycles, like that of the PDO, the global and Northern Hemisphere annual mean temperature, the Atlantic Multi-decadal Oscillation, the Inter-Tropical Convergence Zone, the Southwest US Drought data, the length of day, the air surface temperature, the Atlantic meridional overturning circulation and the change in the location of the centre of mass of the solar system. In addition, we show that there exists a strong seasonal link between SST and ENSO over the tropics and the NH midlatitudes, which becomes stronger in autumn of the Northern Hemisphere. Finally, we found that before and after each SST shift, the intrinsic properties of the SST time series obey stochastic dynamics, which is unaffected by the modulation of these two shifts. In particular, the SST fluctuations for the time period between the two SST shifts exhibit 1/f-type long-range correlations, which are frequently encountered in a large variety of natural systems. Our results have potential implications for future climate shifts and crossing tipping points due to an interaction of intrinsic climate cycles and anthropogenic greenhouse gas emissions.

WOS,
Scopus
Держатели документа:
[Varotsos, Costas A.
Efstathiou, Maria N.] Univ Athens, Climate Res Grp, Div Environm Phys & Meteorol, Fac Phys, Athens 15784, Greece
[Franzke, Christian L. E.] British Antarctic Survey, Nat Environm Res Council, Cambridge CB3 0ET, England
[Degermendzhi, Andrei G.] Russian Acad Sci, Inst Biophys, SB RAS, Krasnoyarsk, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Varotsos, C.A.; Franzke, CLE; Efstathiou, M.N.; Degermendzhi, A.G.

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20.

Impact of weather variability on spatial and seasonal dynamics of dissolved and suspended nutrients in water column of meromictic Lake Shira [Text] / E. S. Zadereev [et al.] // Contemp. Probl. Ecol. - 2014. - Vol. 7, Is. 4. - P384-396, DOI 10.1134/S199542551404012X. - Cited References: 25. - This work was performed with the partial support of the Siberian Branch of the Russian Academy of Sciences (SB RAS) Integration Project no. 56 and grant 13-05-00853 of the Russian Foundation for Basic Research. The work was performed using resources of the field station of the SB RAS Institute of Biophysics (IBP) at Shira Lake. We thank our colleagues from the SB RAS IBP Laboratory of Biophysics of Ecosystems for their friendly participation in joint field works at Shira Lake; Academician A. G. Degermendzhi for his support of research at the saline lakes of Khakassia; the research workers of the SB RAS IBP Analytical Laboratory for the analyses of water and seston samples; and we especially thank Dr. Denis Rogozin for arrangements and assistance in winter field trips to the lakes, as well as to an anonymous reviewer for his valuable comments. . - ISSN 1995-4255. - ISSN 1995-4263

РУБ Ecology
Рубрики:
CLIMATE-CHANGE
   STRATIFICATION
   PHOSPHORUS
   RUSSIA
   PHYTOPLANKTON
   SESTON
Кл.слова (ненормированные):
meromictic lake -- weather -- thermal stratification -- seston -- nutrients -- stoichiometric ratios
Аннотация: Depths of thermocline and the redox zone, concentrations of dissolved and suspended carbon, and nitrogen and phosphorus in seston were measured in the pelagial of the saline meromictic Lake Shira (southern Siberia) in different years (2007-2011); the relationship of the values for those parameters with air-temperature variations was assessed. Positive correlations between both air temperatures in the previous year and the depth of the redox zone in winter and air temperature in April and the thermocline depth in summer were revealed. In the mixolimnion, the ratio of total nitrogen to total phosphorus almost always exceeded the Redfield ratio (16: 1); seston deficiency both in nitrogen and phosphorus was monitored in different seasons and at various depths. The amount of seston in the mixolimnion in summer almost doubled the amount of seston in winter and was directly related with the depth of the thermocline. In the monimolimnion, seston was rich in nitrogen and phosphorus. The amount of seston in the monimolimnion varied in different years and depended both on the air temperature in the previous year and the size of the zone.

WOS
Держатели документа:
[Zadereev, E. S.
Tolomeev, A. P.
Drobotov, A. V.
Kolmakova, A. A.] Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia
[Zadereev, E. S.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Zadereev, E.S.; Tolomeev, A.P.; Drobotov, A.V.; Kolmakova, A.A.; Siberian Branch of the Russian Academy of Sciences (SB RAS) [56]; Russian Foundation for Basic Research [13-05-00853]

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