Dear Sir,

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I'm sorry to bother you. Refer to the article "FLOOD EXTENT DETECTION WITH DIFFERENCING WATER INDICES USING LANDSAT 8 DATA" by��Iyarat��ounrit1,��SomsaritSinnung2,��Pattanapol��Meena3, and��Teerawong��Laosuwan4. This article is grouped in the poster presentation section.

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From an inquiry to the GIS-IDEAS secretariat, it was revealed that some articles have requested that manuscripts to be withdrawn from oral presentations.

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I therefore request that the organizers of the conference GIS-IDEAS change the status of this article from poster presentation to oral presentation.

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Thank you very much for your kind support.

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Best regards,

Iyarat��ounrit

Department of Physics

Faculty of Science

Mahasarakham��University

Maha��Sarakham, Thailand