Remote sensing of leaf chlorophyll content at multiple scales using red, green, and blue bands

E. Raymond Hunt Jr.; Daniel S. Long; Jan U. H. Eitel; C. S. T. Daughtry

doi:10.1117/12.859142

12 August 2010 Remote sensing of leaf chlorophyll content at multiple scales using red, green, and blue bands

E. Raymond Hunt Jr., Daniel S. Long, Jan U. H. Eitel, C. S. T. Daughtry

Proceedings Volume 7809, Remote Sensing and Modeling of Ecosystems for Sustainability VII; 780902 (2010) https://doi.org/10.1117/12.859142
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States

Abstract

Leaf chlorophyll content is an important variable for agricultural remote sensing because of its close relationship to leaf nitrogen content. We propose a triangular greenness index (TGI), which calculates the area of a triangle with three points: (λr, Rr), (λg, Rg), and (λb, Rb). TGI was correlated with chlorophyll content using a variety of leaf and plot reflectance data. However, indices using the chlorophyll red-edge (710-730 nm) generally had higher correlations. With broad bands, TGI had higher correlations than other indices at leaf and canopy scales. Simulations using a canopy reflectance model indicate an interaction among TGI, leaf area index (LAI) and soil type at low crop LAI, whereas at high crop LAI, TGI was only affected by leaf chlorophyll content. Excess nitrogen fertilizer causes numerous environmental problems, nitrogen management using remote sensing will help balance fertilizer applications with crop nitrogen requirements.

Citation Download Citation

E. Raymond Hunt Jr., Daniel S. Long, Jan U. H. Eitel, and C. S. T. Daughtry "Remote sensing of leaf chlorophyll content at multiple scales using red, green, and blue bands", Proc. SPIE 7809, Remote Sensing and Modeling of Ecosystems for Sustainability VII, 780902 (12 August 2010); https://doi.org/10.1117/12.859142

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Reflectivity

Nitrogen

Digital cameras

Remote sensing

Sensors

Spectrometers

Agriculture

Show All Keywords

Keywords/Phrases

Search In:

Publication Years