ESTIMATION OF CANOPY GAP FRACTION BASED ON MULTI SCANNING DATA FROM TERRESTRIAL LASER SCANNER

被引:3
作者
Bao, Yunfei [1 ]
机构
[1] Chinese Acad Sci, Inst Remote Sensing Applicat, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China
来源
2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2012年
关键词
terrestrial laser scanner; gap fraction; tilt mount; vertical mount; hemispherical photograph; LEAF-AREA INDEX; AIRBORNE; LIDAR;
D O I
10.1109/IGARSS.2012.6352746
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A terrestrial laser scanner can be used to measure canopy directional gap fraction distribution in forest stands. But some equipment only measure parts of gap fraction once on a time. A tilt mount of terrestrial laser scanner is able to enlarge the field of view of the scanner by scanning several times on the same position but with different tilt angles. Gap fraction were estimated from integration of the vertical and tilt mount of terrestrial laser scanner. Directional gap fraction distributions from hemispherical photographs were compared with distributions estimated from terrestrial laser scanner. The results showed that the directional gap fraction distributions from the two methods are similar.
引用
收藏
页码:6479 / 6482
页数:4
相关论文
共 17 条
[1]   A COMPARISON OF DIRECT AND INDIRECT METHODS FOR ESTIMATING FOREST CANOPY LEAF-AREA [J].
CHASON, JW ;
BALDOCCHI, DD ;
HUSTON, MA .
AGRICULTURAL AND FOREST METEOROLOGY, 1991, 57 (1-3) :107-128
[2]   DEFINING LEAF-AREA INDEX FOR NON-FLAT LEAVES [J].
CHEN, JM ;
BLACK, TA .
PLANT CELL AND ENVIRONMENT, 1992, 15 (04) :421-429
[3]   Forest canopy gap fraction from terrestrial laser scanning [J].
Danson, F. Mark ;
Hetherington, David ;
Morsdorf, Felix ;
Koetz, Benjamin ;
Allgoewer, Britta .
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2007, 4 (01) :157-160
[4]  
Frazer GW., 2000, B ECOL SOC AM, V81, P191
[5]   Laser altimeter canopy height profiles - Methods and validation for closed-canopy, broadleaf forests [J].
Harding, DJ ;
Lefsky, MA ;
Parker, GG ;
Blair, JB .
REMOTE SENSING OF ENVIRONMENT, 2001, 76 (03) :283-297
[6]   Assessing forest metrics with a ground-based scanning lidar [J].
Hopkinson, C ;
Chasmer, L ;
Young-Pow, C ;
Treitz, P .
CANADIAN JOURNAL OF FOREST RESEARCH, 2004, 34 (03) :573-583
[7]   Inversion of a lidar waveform model for forest biophysical parameter estimation [J].
Koetz, B ;
Morsdorf, F ;
Sun, G ;
Ranson, KJ ;
Itten, K ;
Allgöwer, B .
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2006, 3 (01) :49-53
[8]   Lidar remote sensing of the canopy structure and biophysical properties of Douglas-fir western hemlock forests [J].
Lefsky, MA ;
Cohen, WB ;
Acker, SA ;
Parker, GG ;
Spies, TA ;
Harding, D .
REMOTE SENSING OF ENVIRONMENT, 1999, 70 (03) :339-361
[9]   Using airborne and ground-based ranging lidar to measure canopy structure in Australian forests [J].
Lovell, JL ;
Jupp, DLB ;
Culvenor, DS ;
Coops, NC .
CANADIAN JOURNAL OF REMOTE SENSING, 2003, 29 (05) :607-622
[10]   Estimation of LAI and fractional cover from small footprint airborne laser scanning data based on gap fraction [J].
Morsdorf, Felix ;
Koetz, Benjamin ;
Meier, Erich ;
Itten, K. I. ;
Allgoewer, Britta .
REMOTE SENSING OF ENVIRONMENT, 2006, 104 (01) :50-61