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Comparison of Two Retrieval Soil Moisture Algorithms on SMOS Data / P. P. Bobrov [и др.] // IEEE International Geoscience and Remote Sensing Symposium (IGRASS) : Proceedings. - Munich, 2012. - P1131-1134, DOI 10.1109/IGARSS.2012.6351349 . - ISBN 978-1-4673-1159-5
Аннотация: We made the conclusion about the main deficiencies of the SMOS data Level 1c and Level 2 for the south part of Western Siberia. This was done for the period from 12.07.10 to 10.11.11 by studying SMOS data, periodic ground base measurements of the brightness temperature at 1.4 GHz and ground base measurements of moisture. We developed a simple algorithm for remote retrieval of soil moisture using data of brightness temperature given at SMOS Level 1c, compared the data of soil moisture, given at SMOS Level 2 with data calculated by our algorithm and in situ measurements of moisture.

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Доп.точки доступа:
Bobrov, P. P.; Mironov, V. L.; Миронов, Валерий Леонидович; Yashchenko, A. S.; Kosolapova, L. G.; Косолапова, Людмила Георгиевна; IEEE International Geoscience and Remote Sensing Symposium (2012 ; July ; 22-27 ; Munich, Germany)
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Yashchenko, A. S.
The use of navigation satellites signals for measurement the absorbance of the forest canopy / A. S. Yashchenko, P. P. Bobrov, V. L. Mironov // Progress in Electromagnetics Research Symposium - Spring : IEEE, 2017. - P. 1227-1231, DOI 10.1109/PIERS.2017.8261936. - Cited References:5. - This research was supported by the Russian Foundation for Basic Research, project 16-35-50182 mol_nr. . - ISBN 978-1-5090-6269-0

РУБ Engineering, Electrical & Electronic

Аннотация: The results of measurement of the electromagnetic wave attenuation by the forest canopy at L-band are presented. The soil moisture mapping with reasonable accuracy in a global scale is only possible using the data of satellite radiometers at L-band frequency (SMOS and SMAP remote sensing programs). In the process of soil moisture retrieval from remote sensing data it is necessary to know the state of ecosystems on the Earth's surface. Forests are one of the dominant terrestrial ecosystems of Earth covering a large area of the surface. The attenuation coefficient of the forest canopy has high value even at L-band frequency. In the absence of forest canopy attenuation data the error of retrieval of the soil moisture for woodlands areas will have very high values. For this reason the emissivity model of Earth surface needs a priory data of the emissive and attenuate properties of the forest cover. One of methods of measurement of forest canopy attenuation coefficient at L-band frequency is using the signals of Global Navigation Satellite System (GNSS). Measurement showed that for elevation angle of 50 and 35 degrees the attenuation has a value range of -6 -10 dB and -10 -15 dB respectively. This makes it possible to claim that under certain conditions the soil radiothermal emission can make a noticeable contribution to the overall emission of surface covered forest. The results obtained in the measurement can be used in SMOS and SMAP sub-pixel data processing.

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Держатели документа:
Omsk State Pedag Univ, Omsk, Russia.
RAS, SB, Kirensky Inst Phys, Krasnoyarsk, Russia.

Доп.точки доступа:
Bobrov, P. P.; Mironov, V. L.; Миронов, Валерий Леонидович; Russian Foundation for Basic Research [16-35-50182 mol_nr]; Progress in Electromagnetics Research Symposium - Spring 2017(May 22-25, 2017 ; St Petersburg)
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Results of the SMOS Data Validation over a Steppe and Forest Area in Siberia [Text] / P. P. Bobrov, O. V. Kondratieva, V. L. Mironov [et al.] // Proc. PIER. - 2011. - P55-58

Доп.точки доступа:
Bobrov, P.P.; Kondratieva, O.V.; Mironov, V.L.; Shvetsov, E.; Sukhinin, A.I.; Yashchenko, A.S.; Progress In Electromagnetics Research Symposium(2011 ; Sept. 12-16 ; Suzhou, China)
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Diurnal Dynamics Radiobrightness Temperature of Soil on the Frequency 1.4 and 6.9 GHz in the Processes of Freezing/Thawing [Text] / Bobrov P.P., Mironov V.L., Yashchenko A.S. // Proceedings IGARSS. - 2010. - P4477-4479

Доп.точки доступа:
Bobrov, P.P.; Mironov, V.L.; Yashchenko, A.S.
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Radiometric Measurements of Maximum Bound Wa?ter Fraction in Soil [Text] / V. L. Mironov, P. P. Bobrov, A. S. Yashchenko // Progress in Electromagnetics Research Symposium Proceedings (PIERS 209). - 2009. - P. 839-843

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Доп.точки доступа:
Mironov, V. L.; Bobrov, P.P.; Yashchenko, A.S.; Progress In Electromagnetics Research Symposium(2009 ; Mar. ; 23-27 ; Beijing, China)
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Effect of Antireflective Surface at the Radiobrightness Observations for the Topsoil Covered with Coniferous Litter [Text] / V. L. Mironov, P. P. Bobrov [et al.] // Progress in Electromagnetics Research Symposium Proceedings (PIERS 2009). - 2009. - P. 966-970

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Доп.точки доступа:
Mironov, V. L.; Bobrov, P.P.; Yashchenko, A.S.; Savin, I.V.; Repin, A.V.; Progress In Electromagnetics Research Symposium(26 ; 2009 ; Aug. ; 18-21 ; Moscow)
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Effect of Antireflective Surface at the Radiobrightness Observations for the Topsoil Covered with Coniferous Litter [Text] / V. L. Mironov, P. P. Bobrov [et al.] // PIERS Online. - 2009. - Vol. 5, No 8. - P. 751-755

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Доп.точки доступа:
Mironov, V. L.; Bobrov, P.P.; Yashchenko, A.S.; Savin, I.V; Repin, A.V.
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