Using AVHRR-Based Vegetation Health Indices for Estimation of Potato Yield in Bangladesh

Authors

Rahman A., Centennial College
Kaiser Khan, Humber College
Nir Y. Krakauer, CUNY City CollegeFollow
Leonid Roytman, CUNY City CollegeFollow
Kogan F., NOAA/NESDIS

Document Type

Article

Publication Date

3-24-2012

Abstract

We developed a model correlating Advanced Very High Resolution Radiometer (AVHRR)-based Temperature Condition Index (TCI) and Vegetation Condition Index (VCI) with potato yield in Bangladesh. Weekly TCI and VCI Indices for 1993–2005 along with official potato yield statistics were used for model development. We found a strong correlation between inter annual variation in potato yield and TCI and VCI during the critical period of potato growth (vegetative phase and tuber initiation), mid-December to mid-January. Principal component regression (PCR) was used to construct a model to predict potato yield as function of TCI and VCI. The model explained about 75% of yearto-year variation in potato yield. Remote sensing offers valuable and readily obtainable information on potato yield well in advance of harvest.

Comments

This article was originally published in Civil & Environmental Engineering, available at doi:10.4172/2165-784X.1000111.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.