Multiscale object-based drought monitoring and comparison in rainfed and irrigated agriculture from Landsat 8 OLI imagery
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- 作者：Emre Ozelkana ; b ; c ; emreozelkan@itu.edu.tr" class="auth_mail" title="E-mail the corresponding author ; Gang Chenb ; c ; Burak Berk Ustundaga
- 关键词：Drought ; Agriculture ; SPI ; NDVI ; Irrigated ; Rainfed ; GEOBIA ; Landsat OLI
- 刊名：International Journal of Applied Earth Observation and Geoinformation
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：44
- 期：Complete
- 页码：159-170
- 全文大小：4509 K
文摘
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Spatial scale may exert a high impact on remote sensing drought monitoring.
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Irrigated and rainfed areas should be separated in drought monitoring for a better performance in remote sensing modeling.
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Time lag effect provides the best correlations between spring SPI and summer NDVI that reflect the effect of spring watering on crop growth and summer yield.