CEE 6440 Midterm: midterm2005

• School: Utah State University
• Department: Civil and Environmental Engineering
• Course: CEE 6440
• Professor: All

Document Summary

Please do all 5: [25 points] data representation (a) consider the following geographic features relevant to water resources. Briefly explain, illustrating your explanation with sketches, how each could be represented using either a vector and a raster data representation, or as a vector and time series graph representation. For each attribute indicate which representation (raster or vector) is preferable? (i) river (ii) lake (iii) stream gage (iv) topographic elevation. Page 2 of 6 (v) streamflow (vi) rainfall. (b). The national elevation dataset (ned) provides nationwide digital elevation model coverage in geographic coordinates at 1 arc second resolution. You are working at a location with latitude. 41 degrees north and longitude 111 degrees west. You need to perform some calculations from a. Ned digital elevation model and need to know the cell size on the earth"s surface. Calculate the size of each ned grid cell assuming a spherical earth with radius 6370 km.