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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shevyrnogov A., Vysotskaya G., Shevyrnogov E.
Заглавие : Trends of chlorophyll concentration in the surface layer of the Northern and Central Atlantic, a satellite data-based study
Место публикации : Advances in Space Research. - 2002. - Vol. 30, Is. 11. - С. 2535-2540. - ISSN 02731177 (ISSN) , DOI 10.1016/S0273-1177(02)80332-5
Ключевые слова (''Своб.индексиров.''): 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.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Shevyrnogov A..., Vysotskaya G..., Shevyrnogov E...
Заглавие : Trends of chlorophyll concentration in the surface layer of the northern and central Atlantic, a satellite data-based study
Колич.характеристики :6 с
Место публикации : EARTH'S ATMOSPHERE, OCEAN AND SURFACE STUDIES. Ser. ADVANCES IN SPACE RESEARCH: PERGAMON-ELSEVIER SCIENCE LTD, 2002. - Vol. 30: A0 1, A0 4-A0 5, A3 1, C1 1 and C2 6 Symposia of the COSPAR Scientific Commissions A and C held at the 33rd COSPAR Scientific Assembly (JUL , 2000, WARSAW, POLAND), Is. 11. - P2535-2540. - ISBN 0273-1177, DOI 10.1016/S0273-1177(02)80332-5
Примечания : Cited References: 7
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. (C) 2002 COSPAR. Published by Elsevier Science Ltd. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sid'ko A.F., Shevyrnogov A.P.
Заглавие : Seasonal dependence of the spectral brightness of agricultural crops on plant chlorophyll content and physiological parameters
Место публикации : Earth Observ. Remote Sens.: HARWOOD ACAD PUBL GMBH, 2000. - Vol. 16, Is. 3. - С. 487-500. - 14. - ISSN 1024-5251
Примечания : Cited References: 18
Аннотация: The paper analyses the results of multi-year studies of the state of agricultural crops based on plant reflectance during the growth period. A universal methodology for determining the physiological state, and plant phytopigment content from the value of the chlorophyll potential S(t) in the region of the red absorption band lambda = 680 nm, which can be determined from the SEC values, is presented. It is shown that addition of mineral fertilisers (and, in particular, nitrogen) to soils, in on average 10 days slows the process of chlorophyll breakdown in phytocoenoses in comparison with control areas.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shevyrnogov A.P., Vysotskaya G.S., Gitelson J.I.
Заглавие : Quasistationary areas of chlorophyll concentration in the world ocean as observed satellite data
Место публикации : Advances in Space Research. - 1996. - Vol. 18, Is. 7. - С. 129-132. - ISSN 02731177 (ISSN) , DOI 10.1016/0273-1177(95)00955-8
Ключевые слова (''Своб.индексиров.''): chlorophyll concentration--chlorophylls--czcs--ocean chlorophyll concentration--phytopigment dynamics--productivity--quasistationary areas--remote sensing--satellite data--seasonal changes--world ocean
Аннотация: To estimate the seasonal progress of the production process over the planet and its long-standing trend it is important to measure not only the spatial distributions of pigment that represent the rates of photosynthesis but also their time variability. Anthropogenic impact on natural complexes can be efficiently estimated by satellite observations of phytopigment dynamics. This study presents CZCS satellite data processed to reveal spatial inhomogeneity in the seasonal course of chlorophyll concentration in the world ocean on a global scale. Areas with quasistationary and non-stationary seasonal changes in chlorophyll concentration are revealed for the 7.5 years period of CZCS operation. Areas in the world ocean with maximum absolute and relative differences in chlorophyll concentration during different seasons were found. Results are illustrated with a chart of areas in the Atlantic Ocean discerned by dynamic parameters.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Shevyrnogov A., Vysotskaya G.
Заглавие : Ocean processes revealing by seasonal dynamics of surface chlorophyll concentration (by satellite data)
Место публикации : Proceedings of SPIE - The International Society for Optical Engineering. - 2011. - Vol. 8175: Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2011 (21 September 2011 through 22 September 2011, Prague) Conference code: 87287. - Ст.1. - , DOI 10.1117/12.897819
Ключевые слова (''Своб.индексиров.''): chlorophyll concentration--modis--ocean--sea surface temperature--seawifs--chlorophyll concentration--modis--ocean--sea surface temperatures--seawifs--atmospheric temperature--band structure--chlorophyll--dynamics--ecology--hydrophilicity--productivity--remote sensing--satellites--sea ice--space optics--spatial distribution--surface properties--time series--time series analysis--oceanography
Аннотация: Continuous monitoring of phytopigment concentrations and sea surface temperature in the ocean by space-borne methods makes possible to estimate ecological condition of biocenoses in critical areas. In the papers of the authors (Shevyrnogov A.P., Vysotskaya G.S., Gitelzon J.I. 1996) existence of zones, which are quasi-stationary with similar seasonal dynamics of chlorophyll concentration at surface layer of ocean, was shown. Results were obtained on the base of processing of time series of satellite images SeaWiFS. It was shown that fronts and frontal zones coincide with dividing lines between quasi-stationary areas, especially in areas of large oceanic streams. The usage of the seasonal dynamics gives a possibility to circumvent influence of high-frequency component in investigation of dynamics of spatial distribution of surface streams. In addition, an analyses of unstable ocean productivity phenomena, stood out time series of satellite images, showed existence of areas with different types of instability in the all Global ocean. They are observed as adjacent nonstationary zones of different size, which are associated by different ways with known oceanic phenomena. It is evident that dynamics of a spatial distribution of biological productivity and sea surface temperature can give an additional knowledge of complicated picture of surface oceanic layer hydrology. В© 2011 SPIE.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shevyrnogov A.P., Vysotskaya G.S.
Заглавие : Observed trends of chlorophyll concentration in the surface layer of the northern and central Atlantic (1979-1983)
Место публикации : Advances in Space Research. - 1998. - Vol. 22, Is. 5. - С. 701-704. - ISSN 02731177 (ISSN) , DOI 10.1016/S0273-1177(97)01136-8
Ключевые слова (''Своб.индексиров.''): chlorophyll--primary production--remote sensing--atlantic ocean
Аннотация: To preserve and utilize the biosphere it is imperative that we understand the long-term dynamics of the primary production process on our planet. Variability of chlorophyll concentration in the ocean is one of the most important components of this process. However, size and access make its investigation labour-intensive. Dependence of primary production on high variability of hydrophysical phenomena in the ocean (fluctuations of currents, frontal zones, etc.) makes it difficult to locate points to measure chlorophyll concentration dynamics. To locate such quasistationary zones with respect to seasonal dynamics of chlorophyll concentration by satellite data the Institute of Biophysics (Russian Academy of Sciences, Siberian Branch) has developed a geoinformation system. Its use made it possible to locate such zones over the entire ocean. The work shows zones on the Central and Northern Atlantic. They form the ground to analyse perennial dynamics of chlorophyll concentration. The quasistationary zones are proposed for systematic monitoring of phytopigment concentration by space-borne and marine craft.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Shevyrnogov A.P., Vysotskaya G.S.
Заглавие : Observed trends of chlorophyll concentration in the surface layer of the Northern and Central Atlantic (1979-1983)
Колич.характеристики :4 с
Место публикации : SYNERGISTIC USE OF MULTISENSOR DATA FOR LAND PROCESSES. Ser. ADVANCES IN SPACE RESEARCH: PERGAMON PRESS LTD, 1998. - Vol. 22: A3 1 Symposium of COSPAR Scientific Commission A on Synergistic Use of Multisensor Data for Land Processes at 31st COSPAR Scientific Assembly (JUL 14-21, 1996, BIRMINGHAM, ENGLAND), Is. 5. - P701-704. - ISBN 0273-1177, DOI 10.1016/S0273-1177(97)01136-8. - ISBN 0-08-043469-X
Примечания : Cited References: 7
Аннотация: To preserve and utilize the biosphere it is imperative that we understand the long-term dynamics of the primary production process on our planet. Variability of chlorophyll concentration in the ocean is one of the most important components of this process. However, size and access make its investigation labour-intensive. Dependence of primary production on high variability of hydrophysical phenomena in the ocean (fluctuations of currents, frontal zones, etc.) makes it difficult to locate points to measure chlorophyll concentration dynamics. To locate such quasistationary zones with respect to seasonal dynamics of chlorophyll concentration by satellite data the Institute of Biophysics (Russian Academy of Sciences, Siberian Branch) has developed a geoinformation system. II use made it possible to locate such zones over the entire ocean. The work shows zones on the Central and Northern Atlantic. They form the ground to analyse perennial dynamics of chlorophyll concentration. The quasistationary zones are proposed for systematic monitoring of phytopigment concentration by space-borne and marine craft. (C) 1998 COSPAR. Published by Elsevier Science Ltd.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shevyrnogov A., Vysotskaya G.
Заглавие : Long-term dynamics of chlorophyll concentration in the ocean surface layer (by space data)
Место публикации : Advances in Space Research. - 2007. - Vol. 39, Is. 1. - С. 197-202. - ISSN 02731177 (ISSN) , DOI 10.1016/j.asr.2006.10.015
Ключевые слова (''Своб.индексиров.''): dynamics--ocean--phytopigment--climatology--concentration (process)--hydrology--marine biology--ocean currents--plants (botany)--biosphere--ocean--phytopigments--chlorophyll
Аннотация: To preserve the biosphere and to use it efficiently, it is necessary to gain a deep insight into the dynamics of the primary production process on our planet. Variability of chlorophyll concentration in the ocean is one of the most important components of this process. These investigations are, however, very labor-consuming, because of the difficulties related to the accessibility of the water surface and its large size. In this work long-term changes in chlorophyll concentration in the surface layer of the ocean have been analyzed on the basis of the CZCS data for 7.5 years from 1979 to 1986 and the SeaWiFS data from 1997 to 2004. It has been shown that the average chlorophyll concentration calculated in all investigated areas varies moderately. However, when analyzing spatially local trends, the areas have been detected that have significant rise and fall of chlorophyll concentrations. Some interesting features of the long-term dynamics of chlorophyll concentration have been found. The opposite directions of long-term trends (essential increase or decrease) cannot be explained only by large-scale hydrological phenomena in the ocean (currents, upwellings, etc.). The measured chlorophyll concentration results from the balance between production and destruction processes. Which process dominates is determined by various hydrophysical, hydrobiological, and climatic processes, leading to sharp rises or falls of the concentration. It is important to estimate the scale of the areas in which this or that process dominates. Therefore, the study addresses not only the dynamics of the mean value but also the dynamics of the areas in which the dominance of certain factors has led to a sharp fall or rise in chlorophyll concentration. Thus, the obtained results can be used to estimate long-term changes in the ocean biota. В© 2006 COSPAR.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Shevyrnogov A.P., Sid'ko A.F.
Заглавие : Ground truth methods as a part of space mapping of inland water phytopigment dynamics
Место публикации : SYNERGISTIC USE OF MULTISENSOR DATA FOR LAND PROCESSES. Ser. ADVANCES IN SPACE RESEARCH: PERGAMON PRESS LTD, 1998. - Vol. 22: A3 1 Symposium of COSPAR Scientific Commission A on Synergistic Use of Multisensor Data for Land Processes at 31st COSPAR Scientific Assembly (JUL 14-21, 1996, BIRMINGHAM, ENGLAND), Is. 5. - С. 705-708. - 4. - ISBN 0273-1177, DOI 10.1016/S0273-1177(97)01137-X. - ISBN 0-08-043469-X
Примечания : Cited References: 5
Аннотация: Spectral radiance and reflectance of the Krasnoyarsk reservoir water surface were studied from 1974 until 1989, Spectral brightness coefficient (SBC) curves have been found to record chlorophyll absorption band in the red part of the spectrum lambda = 680 nm and spectral indices of "yellow matter" absorption in the short-wave part lambda = 400-500 nm, Blue-green algae SEC curves record phycocyanine absorption peak at lambda(max) = 630 mm. The peak is inherent in this type of algae only, (C) 1998 COSPAR, Published by Elsevier Science Ltd.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shevyrnogov A.P., Sid'ko A.F.
Заглавие : Ground truth methods as a part of space mapping of inland water phytopigment dynamics
Место публикации : Advances in Space Research. - 1998. - Vol. 22, Is. 5. - С. 705-708. - ISSN 02731177 (ISSN) , DOI 10.1016/S0273-1177(97)01137-X
Ключевые слова (''Своб.индексиров.''): chlorophyll--optical property--spectral reflectance--russian federation
Аннотация: Spectral radiance and reflectance of the Krasnoyarsk reservoir water surface were studied from 1974 until 1989. Spectral brightness coefficient (SBC) curves have been found to record chlorophyll absorption band in the red part of the spectrum ? = 680 nm and spectral indices of 'yellow matter' absorption in the short-wave part ? = 400-500 nm. Blue-green algae SBC curves record phycocyanine absorption peak at ?max = 630 mm. The peak is inherent in this type of algae only.
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11.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Shevyrnogov A.P., Sid'ko A.F.
Заглавие : Ground truth methods as a part of space mapping of inland water phytopigment dynamics
Колич.характеристики :4 с
Место публикации : SYNERGISTIC USE OF MULTISENSOR DATA FOR LAND PROCESSES. Ser. ADVANCES IN SPACE RESEARCH: PERGAMON PRESS LTD, 1998. - Vol. 22: A3 1 Symposium of COSPAR Scientific Commission A on Synergistic Use of Multisensor Data for Land Processes at 31st COSPAR Scientific Assembly (JUL 14-21, 1996, BIRMINGHAM, ENGLAND), Is. 5. - P705-708. - ISBN 0273-1177, DOI 10.1016/S0273-1177(97)01137-X. - ISBN 0-08-043469-X
Примечания : Cited References: 5
Аннотация: Spectral radiance and reflectance of the Krasnoyarsk reservoir water surface were studied from 1974 until 1989, Spectral brightness coefficient (SBC) curves have been found to record chlorophyll absorption band in the red part of the spectrum lambda = 680 nm and spectral indices of "yellow matter" absorption in the short-wave part lambda = 400-500 nm, Blue-green algae SEC curves record phycocyanine absorption peak at lambda(max) = 630 mm. The peak is inherent in this type of algae only, (C) 1998 COSPAR, Published by Elsevier Science Ltd.
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shevyrnogov A., Vysotskaya G., Shevyrnogov E.
Заглавие : A study of the stationary and the anomalous in the ocean surface chlorophyll distribution by satellite data
Место публикации : International Journal of Remote Sensing. - 2004. - Vol. 25, Is. 7-8. - С. 1383-1387. - ISSN 01431161 (ISSN)
Ключевые слова (''Своб.индексиров.''): chlorophyll--data reduction--oceanography--planets--probability--satellite communication systems--biospheres--remote sensing--chlorophyll--concentration (composition)--remote sensing--satellite data--sea surface
Аннотация: Variability of chlorophyll concentration in the ocean is one of the most important components of the primary production process on the planet. To preserve the biosphere and to make appropriate use of it, it is imperative to have a deep insight into the long-term dynamics of the primary production on the planet. To investigate the dynamics of chlorophyll concentration based on satellite data, the Institute of Biophysics (Russian Academy of Sciences, Siberian Branch) has developed a geoinformation system. It was used to detect the areas in the global ocean that are quasistationary in relation to seasonal dynamics of chlorophyll concentration. Areas such as these, found in the Indian Ocean, are described in this work. These areas form the basis for the analysis of long-term dynamics of chlorophyll concentration. In these quasistationary zones systematic monitoring of phytopigment concentration is conducted by space-borne and marine craft. The work presents long-term satellite-based data on the space distribution of anomalous deviations of chlorophyll concentration in the ocean. An anomaly criterion is proposed and maps of Pacific Ocean areas with a high probability of anomalies are presented. В© 2004 Taylor and Francis Ltd.
Scopus
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shevyrnogov A..., Vysotskaya G..., Shevyrnogov E...
Заглавие : A study of the stationary and the anomalous in the ocean surface chlorophyll distribution by satellite data
Колич.характеристики :5 с
Место публикации : Int. J. Remote Sens.: TAYLOR & FRANCIS LTD, 2004. - Vol. 25: Oceans from Space Venice 2000 Symposium (OCT 09-13, 2000, Venice, ITALY), Is. 07.08.2013. - P1383-1387. - ISSN 0143-1161, DOI 10.1080/01431160310001592337
Примечания : Cited References: 8
Аннотация: Variability of chlorophyll concentration in the ocean is one of the most important components of the primary production process on the planet. To preserve the biosphere and to make appropriate use of it, it is imperative to have a deep insight into the long-term dynamics of the primary production on the planet. To investigate the dynamics of chlorophyll concentration based on satellite data, the Institute of Biophysics (Russian Academy of Sciences, Siberian Branch) has developed a geoinformation system. It was used to detect the areas in the global ocean that are quasistationary in relation to seasonal dynamics of chlorophyll concentration. Areas such as these, found in the Indian Ocean, are described in this work. These areas form the basis for the analysis of long-term dynamics of chlorophyll concentration. In these quasistationary zones systematic monitoring of phytopigment concentration is conducted by space-borne and marine craft. The work presents long-term satellite-based data on the space distribution of anomalous deviations of chlorophyll concentration in the ocean. An anomaly criterion is proposed and maps of Pacific Ocean areas with a high probability of anomalies are presented.
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