Журнал

About Editorial Board Information for authors and reviewers Publication ethics Contacts User Account: send / review a manuscript
Archive
Volume 21, 2024
Number 1
Volume 20, 2023
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6
Volume 19, 2022
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6
Volume 18, 2021
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6
Volume 17, 2020
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6 Number 7
Volume 16, 2019
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6
Volume 15, 2018
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6 Number 7
Volume 14, 2017
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6 Number 7
Volume 13, 2016
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6
Volume 12, 2015
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6
Volume 11, 2014
Number 1 Number 2 Number 3 Number 4
Volume 10, 2013
Number 1 Number 2 Number 3 Number 4
Volume 9, 2012
Number 1 Number 2 Number 3 Number 4 Number 5
Volume 8, 2011
Number 1 Number 2 Number 3 Number 4
Volume 7, 2010
Number 1 Number 2 Number 3 Number 4
Issue 6, 2009
Volume 1 Volume 2
Issue 5, 2008
Volume 1 Volume 2
Issue 4, 2007
Volume 1 Volume 2
Issue 3, 2006
Volume 1 Volume 2
Issue 2, 2005
Volume 1 Volume 2
Issue 1, 2004
Volume 1
Search
Find:
русский
ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2016, Vol. 13, No. 6, pp. 119-134

The use of the sea buoys data for estimating the variance of slopes of large-scale waves for Ku- and Ka-bands

M.A. Panfilova 1 , V.Yu. Karaev 1 
1 Institute of Applied Physics RAS, Nizhny Novgorod, Russia
Accepted: 30.11.2016
DOI: 10.21046/2070-7401-2016-13-6-119-134
The variance of sea surface slopes of a larger scale compared to the probing wave length is an important parameter which influences backscattering of microwaves by the sea surface as well as air-sea interaction. In the present work, the dependence of the variance of slopes on parameters measured by sea buoys is investigated. The contribution of each parameter to the variance of slopes is evaluated. For this purpose a database which includes the dual frequency precipitation radar data (normalized radar backscattering cross section (NRCS) for Ku- and Ka-bands, the incidence angles) and sea buoys data (sea waves parameters and parameters characterizing the near surface atmosphere layer) was created. The collocation window by time between radar and buoys measurements is 30 minutes and collocation window by space is 40 km. The data of the precipitation radar were used to estimate the slope variance of the sea surface along the scanning direction and NRCS at zero incidence angle. The algorithm to calculate the total slope variance from the NRCS at zero incidence angle was suggested. The total slope variance which is retrieved from the precipitation radar data was considered as a reference value in the present research. The empirical dependence of the total slope variance for Ku- and Ka-bands on the parameters measured by sea buoys (significant wave height, dominant and average periods of wave spectrum, the water and air temperature, wind and wave directions and wind speed) was obtained.
Keywords: sea buoys, microwave remote sensing of the sea surface, low incidence angles, slope variance
Full text

References:

  1. Bass F.G., Fuks I.M., Rasseyanie voln na statisticheski nerovnoi poverkhnosti (Scattering of waves by statistically rough surfaces), Moscow: Nauka, 1972, 424 p.
  2. Bortkovskii R.S., O vliyanii temperatury vody na sostoyanie poverkhnosti okeana i na protsessy perenosa (On the impact of water temperature on the ocean surface condition and processes of transfer), Izvestiya AN fiziki atmosfery i okeana, 1997, Vol. 33, No. 2, pp. 266–273.
  3. Garnaker'yan A.A., Sosunov A.S., Radiolokatsiya morskoi poverkhnosti (Radiolocation of the sea surface), Rostov: Izd. Rostovskogo universiteta, 1978, 144 p.
  4. Danilychev M.V., Kutuza B.G., Nikolaev A.G., Razvitie radiatsionnoi modeli vzvolnovannoi morskoi poverkhnosti na osnove dannykh eksperimenta po izmereniyu rasseyannogo SVCh radioizlucheniya Solntsa (Development of the radiolocation model of rough sea surface based on the experimental data on measurements of scattering of Sun microwave band radiation), Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2006, Vol. 2, No. 3, 2006, pp. 68–85.
  5. Karaev V.Yu., Panfilova M.A., Balandina G.N., Chu K., Vosstanovlenie dispersii naklonov krupnomasshtabnykh voln po radiolokatsionnym izmereniyam v SVCh-diapazone (Retrieval of slope variance by microwave measurements), Issledovanie Zemli iz kosmosa, 2012, No. 4, pp. 62–77.
  6. Titchenko Yu.A., Diagnostika poverkhnostnogo volneniya s ispol'zovaniem ul'trazvukovykh i mikrovolnovykh lokatorov s diagrammami napravlennosti spetsial'noi formy : Diss. kand. fiz.-mat. nauk (Diagnostics of surface waves by ultrasonic sonars and micro wave locators with antenna pattern of a special form: cand. phys.-math. sci. thesis), Nizhny Novgorod: IAP RAS, 2016, 159 p.
  7. Chu X., He Y., Chen G., Asymmetry and anisotropy of microwave backscatter at low incidence angles, Transactions on geoscience and remote sensing, 2012, Vol. 50, No. 10, pp. 4014–4024.
  8. Cox C., Munk W., Slopes of the sea surface deduced from photographs of sun glitter, Bull. Scripps Inst. Oceanogr., 1956, Vol. 6, pp. 401–488.
  9. Freilich M., Vanhoff B., The relationship between winds, surface roughness and radar backscatter at low incidence angles from TRMM precipitation radar measurements, Journal of atmospheric and oceanic technology, 2003, Vol. 20, No. 4, pp. 579–562.
  10. Haykin S., Neural Networks and Learning Machines (3rd Edition), Prentice Hall, 2009, 938 p.
  11. Hwang P.A., Shemdin O.H., The dependence of sea surface slope on atmospheric stability and swell conditions, Journal of geophysical research, 1988, Vol. 93, No. C11, pp. 13903–13912.
  12. Jackson F.C., Walton W.T., Hines D.E., Walter B.A., Peng C.Y., Sea surface mean square slope from Ku-band backscatter data, Journal of Geophysical Research, 1992, Vol. 97, No. NC7, pp. 11411–11427.
  13. Keller W.C., Plant W.J., Weissman D.E., The dependence of X-band microwave sea return on atmospheric stability and sea state, Journal of geophysical research, 1985, Vol. 90, pp. 1019–1029.
  14. Stogryn A.P., Equations for the permittivity of sea water, Report to NRL Washington DC, GenCorp Aerojet, Azusa, CA, 1997, 11 p.
  15. Tang S., Shemdin O.H., Measurement of high frequency waves using a wave follower, Journal of geophysical research, 1983, Vol. 88, pp. 9832–9840.
  16. Titchenko Yu.A., Karaev V.Yu., Meshkov E.M., Zuikova E.M., Measuring the variance of the vertical orbital velocity component by an acoustic wave gauge with a single transceiver antenna, IEEE Transactions on Geoscience and Remote Sensing, 2015, Vol. 53, No. 8, pp. 4340–4347.
  17. Vandemark D., Chapron B., Sun J., Crescenti, Graber H., Ocean wave slope observation using radar backscatter and laser altimeters, Journal of Physical oceanography, 2004, Vol. 34, No. 12, pp. 2825–2842.