JAPRS & SIS, Vol.34, Part 7, “Resource and Environmental Monitoring”, Hyderabad, India, 2002
water, Though it is close to the reality, we may consider minor
deviations to the phenomena of bound water. However, a
considerable increase from 0.86 to 0.93, in the coefficient of
determination (R2) clearly indicated that it is possible to reduce
the effect of soil texture by representing the soil moisture in
terms of percentage of available water in a soil medium. Also,
the information on soil moisture in terms of percentage of
available water to plants would also be a more meaningful
parameter as an input to many research areas particularly to that
of agricultural.
8. REFERENCES
Brady, N. C., 1995. The Nature and Properties of Soils. Eastern
economy edition, Prentice-Hall of India, New Delhi, India, pp.
142-148.
Duggin, M.J. and Robinore, C.J., 1990. Assumptions Implicit in
Remote Sensing Data Acquisition and analysis, International
Journal of Remote sensing, 11(10), pp. 1669-1694.
Henderson, F.M. and Lewis, J.L., 1998. Principles &
applications of imaging radar — Manual of Remote Sensing,
Volume — 2, Third Edison, John Wiley & Sons, Inc., pp. 407-
425.
Lee, J.S., 1986. Speckle suppression and analysis of SAR
images. Optical engineering, 25, pp 636-643.
RSI, 2000. RADARSAT Illuminated, Your guide to products
and services, RADARSAT International, Client Services,
Richmound, Canada.
Srivastava, H.S., 2000. Feasibility of retrieval of surface
roughness information using simulated values of 0° and its use
in soil | moisture estimation. Technical Report
NNRMS/RRSSCD/RADARSATI/SR/02/ 2000, Indian Space
Research Organisation (ISRO), Dehradun, India, pp. 25-34.
Srivastava, H.S., Patel, Parul, Manchanda, M.L. and Adiga, S.,
2002a. An attempt to incorporate the effect of crop cover in soil
moisture estimation using multi-incidence angle RADARSAT-
1 SAR data. Asian Journal of Geoinformatics: SAR
Applications in Tropical Environment, Vol. 2, No. 3, March
2002, pp. 33-40.
724
Srivastava, H.S., Patel, Parul, Manchanda, M.L. and Adiga, S.,
2002b. An attempt to incorporate the effect of surface
roughness in soil moisture estimation using multi-incidence
angle RADARSAT-1 SAR data, IEEE Transaction on
Geoscience and Remote Sensing: SAR Special Issue.
(Communicated).
Ulaby, F.T., Batliwala, P.P. and Dobson, M.C., 1978.
Microwave backscatter dependence on surface roughness, soil
moisture and soil texture, Part-I: Bare soil. IEEE Transactions
on Geoscience Electronics, GE-16, pp. 286-295.
Ulaby, F.T., Bradley, G.A. and Dobson, M.C., 1979.
Microwave backscatter dependence on surface roughness, soil
moisture and soil texture, Part-II: Vegetation covered soil.
IEEE Transactions on Geoscience Electronics, GE-17, pp. 33-
40.
Ulaby, F.T., Moore, R.K. and Fung, A.K., 1986a. Microwave .
remote sensing: Active and Passive, Vol. Ill, Artech House, 685
Canton Street, Norwood, MA., pp. 2086-2092.
Ulaby, F.T., Moore, R.K. and Fung, A.K., 1986b. Microwave
remote sensing: Active and Passive, Vol. II, Artech House, 685
Canton Street, Norwood, MA., pp. 860-863.
9. ACKNOWLEDGEMENTS
Author is extremely thankful to Shri S. Adiga, Director,
RRSSC/NNRMS, for his keen interest in the study and for his
constant encouragement and support during the course of study.
Author is also thankful to Dr. R.R. Navalgund, Director,
National Remote Sensing Agency (NRSA) for useful
discussion and valuable suggestions during the course of study.
Thanks are also due to Dr. M.L. Manchanda, Head, RRSSC,
Dehradun for facilitating to complete the study. Last but not
the least author expresses his gratitude to Mission Director,
RSAM for providing timely support and funds to complete the
study.