Theoretical assessment of short-wavelength infrared for monitoring natural vegetation in Burkina Faso

Agnes Begue; Fabrice Mauries; Gerard Laine

doi:10.1117/12.298169

30 December 1997 Theoretical assessment of short-wavelength infrared for monitoring natural vegetation in Burkina Faso

Agnes Begue, Fabrice Mauries, Gerard Laine

Proceedings Volume 3222, Earth Surface Remote Sensing; (1997) https://doi.org/10.1117/12.298169
Event: Aerospace Remote Sensing '97, 1997, London, United Kingdom

Abstract

Western Burkina-Faso is a pole of intense population migration that conducts to problems of space saturation and land degradation. The present study deals with the natural vegetation characterization of this region using the high resolution visible and infrared (HRVIR) sensor that will be launched on SPOT 4. We adopted a theoretical approach which consists in evaluating the capacity of the future short wavelength infrared (SWIR) band to discriminate natural vegetation types using a 3D radiative transfer model (Myneni's model). Simulations were conducted with realistic input parameters (different vegetation structure, soil, satellite, atmospheric conditions . . .) during dry and rainy seasons. The outputs of the simulations (bi-directional reflectances, vegetation indices) were used to study the sensitivity of the SWIR to vegetation type and to external conditions. The results show that the SWIR band is well correlated with the red channel during the wet season, and with the near infrared (NIR) and red channels during the dry season. Its sensitivity to the atmosphere is low, and the sensitivity to the soil type is medium. The sensitivity to the woody cover is high during the dry season (about 1.6 points of reflectance per 10% of woody cover) but is still equivalent to the NIR sensitivity. Spectral vegetation indices including SWIR do not provide additional information on the structure of the vegetation canopy.

Citation Download Citation

Agnes Begue, Fabrice Mauries, and Gerard Laine "Theoretical assessment of short-wavelength infrared for monitoring natural vegetation in Burkina Faso", Proc. SPIE 3222, Earth Surface Remote Sensing, (30 December 1997); https://doi.org/10.1117/12.298169

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
11 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Vegetation

Reflectivity

Short wave infrared radiation

Near infrared

Atmospheric modeling

3D modeling

Radiative transfer

Show All Keywords

Keywords/Phrases

Search In:

Publication Years