C-BAND BACKSCATTERING FROM CORN CANOPIES

被引：15

作者：

DAUGHTRY, CST

RANSON, KJ

BIEHL, LL

机构：

[1] NASA,GODDARD SPACE FLIGHT CTR,TERR PHYS LAB,EARTH RESOURCES BRANCH,GREENBELT,MD 20771

[2] PURDUE UNIV,APPLICAT REMOTE SENSING LAB,W LAFAYETTE,IN 47907

来源：

INTERNATIONAL JOURNAL OF REMOTE SENSING | 1991年 / 12卷 / 05期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1080/01431169108929713

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

A frequency-modulated continuous-wave C-band (4.8 GHz) scatterometer was mounted on an aerial lift truck and backscatter coefficients of corn (Zea mays L.) were acquired as functions of polarizations, view angles and row directions. As phytomass and green-leaf area index increased, the backscatter also increased. Near anthesis, when the canopies were fully developed, the major scattering elements were located in the upper 1 m of the 2.8 m tall canopy and little backscatter was measured below that level for view angles of 30-degrees or greater. C-band backscatter data could provide information to monitor tillage operations at small view zenith angles and vegetation at large view zenith angles.

引用

页码：1097 / 1109

页数：13

共 16 条

[1] VEGETATION MODELED AS A WATER CLOUD [J].