Convert DEM�??s cell size (degree) to image satellite�??s cell size (meter)

[HamidKeshtkar]

Hi,

I want to use digital elevation model (DEM) in classification of satellite images, but the pixel size of DEM is in "degree" and pixel size of satellite image is in "meter". How can I convert degree to meter?

DEM pixel size: 0.00083308 Degree
Image pixel size: 30 Meter

Thanks in advance.