A RADAR BACKSCATTER MODEL FOR DISCONTINUOUS CONIFEROUS FORESTS

被引：75

作者：

SUN, GQ

SIMONETT, DS

STRAHLER, AH

机构：

[1] UNIV CALIF SANTA BARBARA,DEPT GEOG,SANTA BARBARA,CA 93106

[2] BOSTON UNIV,DEPT GEOG,CTR REMOTE SENSING,BOSTON,MA 02215

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 1991年 / 29卷 / 04期

关键词：

DISCONTINUOUS FOREST CANOPIES; STOKES MATRIX; GAP PROBABILITIES;

D O I：

10.1109/36.135826

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

A radar backscattering model for low to medium density woodland is described in this paper, in which each tree is treated as an individual backscatterer. A forest stand viewed by radar is then an assemblage of scatterers standing on a background in a certain spatial pattern. The backscattering components arising from the various intersections of radar beams with the forest stand are calculated separately and their Stokes matrices are then added together to achieve the Stokes matrix for total backscattering. Probabilities of radar beams intersecting tree crowns are introduced into the model in calculating the backscattering and to give each component the appropriate extinctions.

引用

页码：639 / 650

页数：12

共 16 条

[1]

Bohren C. F., 2008, ABSORPTION SCATTERIN

[2]

CHAUHAN NS, 1988, P IGARSS 88 EDINBURG, P1757

[3]

DURDEN SJ, 1988, IEEE T GEOSCI REMOTE, V26, P290

[4]

GETIS A, 1971, GEOGR ANAL, V3, P256

[5]

GHOLZ HL, 1988, IEEE T GEOSCI REMOTE, V26, P161

[6]

GHOLZ HL, 41 OR STAT U FOR RES

[7]

HESS L, 1990, P IGARSS 90, P503

[8] ELECTROMAGNETIC SCATTERING FROM A LAYER OF FINITE LENGTH, RANDOMLY ORIENTED, DIELECTRIC, CIRCULAR-CYLINDERS OVER A ROUGH INTERFACE WITH APPLICATION TO VEGETATION [J].

KARAM, MA ;

FUNG, AK .

INTERNATIONAL JOURNAL OF REMOTE SENSING, 1988, 9 (06) :1109-1134

[9] MODELING THE GAP PROBABILITY OF A DISCONTINUOUS VEGETATION CANOPY [J].

LI, XW ;

STRAHLER, AH .

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 1988, 26 (02) :161-170

[10] L-BAND RADAR BACKSCATTER MODELING OF FOREST STANDS [J].

RICHARDS, JA ;

SUN, GQ ;

SIMONETT, DS .

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 1987, 25 (04) :487-498

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