Please wait a minute...
ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2006, Vol. 7 Issue (12): 8-    DOI: 10.1631/jzus.2006.A2002
    
A modified chlorophyll absorption continuum index for chlorophyll estimation
YANG Xiao-hua, HUANG Jing-feng, WANG Fu-min, WANG Xiu-zhen, YI Qiu-xiang, WANG Yuan
Institute of Agricultural Remote Sensing & Information Application, Zhejiang University, Hangzhou 310029, China; Zhejiang Meteorological Institute, Hangzhou 310004, China
Download:     PDF (0 KB)     
Export: BibTeX | EndNote (RIS)      

Abstract  There is increasing interest in using hyperspectral data for quantitative characterization of vegetation in spatial and temporal scopes. Many spectral indices are being developed to improve vegetation sensitivity by minimizing the background influence. The chlorophyll absorption continuum index (CACI) is such a measure to calculate the spectral continuum on which the analyses are based on the area of the troughs spanned by the spectral continuum. However, different values of CACI were obtained in this method because different positions of continuums were determined by different users. Furthermore, the sensitivity of CACI to agronomic parameters such as green leaf chlorophyll density (GLCD) has been reduced because the fixed positions of continuums are determined when the red edge shifted with the change in GLCD. A modified chlorophyll absorption continuum index (MCACI) is presented in this article. The red edge inflection point (REIP) replaces the maximum reflectance point (MRP) in near-infrared (NIR) shoulder on the CACI continuum. This MCACI has been proved to increase the sensitivity and predictive power of GLCD.

Key words： Continuum      Chlorophyll      Sensitivity      Prediction power     
Received: 01 April 2006     
CLC:  TP751  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
YANG Xiao-hua
HUANG Jing-feng
WANG Fu-min
WANG Xiu-zhen
YI Qiu-xiang
WANG Yuan
Cite this article:

YANG Xiao-hua, HUANG Jing-feng, WANG Fu-min, WANG Xiu-zhen, YI Qiu-xiang, WANG Yuan. A modified chlorophyll absorption continuum index for chlorophyll estimation. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2006, 7(12): 8-.

URL:

http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2006.A2002     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2006/V7/I12/8

[1] Cheng-ming Lan , Hui Li, Jun-Yi Peng , Dong-Bai Sun . A structural reliability-based sensitivity analysis method using particles swarm optimization: relative convergence rate[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2016, 17(12): 961-973.
[2] Philipp Ziegler, Sandro Wartzack. A statistical method to identify main contributing tolerances in assemblability studies based on convex hull techniques[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2015, 16(5): 361-370.
[3] Bing Xu, Shao-gan Ye, Jun-hui Zhang. Effects of index angle on flow ripple of a tandem axial piston pump[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2015, 16(5): 404-417.
[4] Pijush Samui, Dookie Kim, Bhairevi G. Aiyer. Pullout capacity of small ground anchor: a least square support vector machine approach[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2015, 16(4): 295-301.
[5] Xiang Hu, Li Xie, Chuang Mi, Dian-hai Yang. Calibration and validation of an activated sludge model for a pilot-scale anoxic/anaerobic/aerobic/post-anoxic process[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2014, 15(9): 743-752.
[6] Wei-qiu Chen. The renaissance of continuum mechanics[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2014, 15(4): 231-240.
[7] Chang-yu Cui, Bao-shi Jiang, You-bao Wang. Node shift method for stiffness-based optimization of single-layer reticulated shells[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2014, 15(2): 97-107.
[8] Wei Lu, Yan-yong Xiang. Experiments and sensitivity analyses for heat transfer in a meter-scale regularly fractured granite model with water flow[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2012, 13(12): 958-968.
[9] Jian Zhou, Qi-wei Jian, Jiao Zhang, Jian-jun Guo. Coupled 3D discrete-continuum numerical modeling of pile penetration in sand[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2012, 13(1): 44-55.
[10] Mohammad Khajehzadeh, Mohd Raihan Taha, Ahmed El-Shafie, Mahdiyeh Eslami. Modified particle swarm optimization for optimum design of spread footing and retaining wall[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2011, 12(6): 415-427.
[11] Yan ZHANG, Zhi-gang HU. Continuum damage mechanics based modeling progressive failure of woven-fabric composite laminate under low velocity impact[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2010, 11(3): 151-164.
[12] Han-jie MA, Fan ZHOU, Rong-xin JIANG, Yao-wu CHEN. A network-aware error-resilient method using prioritized intra refresh for wireless video communications[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2009, 10(8): 1169-1176.
[13] Ying XU, Chang-fu ZONG, Hsiao-hsiang NA, Lei LIU. Investigations on control algorithm of steady-state cornering and control strategy for dynamical correction in a steer-by-wire system[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2009, 10(6): 900-908.
[14] WANG Li-qiang, LU Zu-kang. Improving the sensitivity of protein microarray by evanescent-field-induced fluorescence[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2005, 6(7): 623-626.
[15] JIANG Jian, ZHOU Xiao-jun, GUO Tian-tai, WU Si-yuan. Research on ultrasonic detection of complex surfaces[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2005, 6(10): 1146-1151.