Forest biomass retrieval using VHF SAR

被引：0

作者：

Smith, G ^{[1
]}

Ulander, LMH ^{[1
]}

机构：

[1] Chalmers Univ Technol, Dept Radio & Space Sci, S-41296 Gothenburg, Sweden

来源：

SECOND INTERNATIONAL WORKSHOP ON RETRIEVAL OF BIO- & GEO-PHYSICAL PARAMETERS FROM SAR DATA FOR LAND APPLICATIONS | 1998年 / 441卷

关键词：

D O I：

暂无

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

CARABAS measurements from the boreal forest in Tuusula, Finland are presented. They show a good sensitivity to the forest stem volume, with no saturation reached up to stem volumes of 550 m(3)/ha. An indication of stem volume retrieval accuracy suggests that for high stem volumes CARABAS measurements approach the accuracy of standard ground-based inventory. A simple model for the VHF backscatter is described, and used to explain in a qualitative manner some of the measurements that degrade a simple regression of sigma degrees on backscatter. This is particularly noticeable for areas with few, very large trees.

引用

页码：301 / 307

页数：7

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