Who created the gtopo1km raster in the oregondata geodatabase? when was it created? in what units are the elevation values?

Water is a flat surface—For visualizations, all lakes and oceans should appear at their normal water levels. In some cases, the water bodies may be normalized to have an elevation value of zero. This is typically used for orthorectification.Water subsurface is valid—For hydrologic modeling, a civil engineer may want to know the topography of a river basin without any water present; therefore, the DEM includes bathymetric data.

The three steps before modern english were indo-european, germanic, and old english. as peoples moved around the eurasian continent, their languages changed. throughout the ages, the languages became more specialized. as english has many germanic influences, it is easy to see how this was one of the forebears. also, old english was one of the main ancestors of the modern language, spoken in the 5th through about the 13th centuries.