Week 10: Cut, Fill, and Raster Volumes

Presentation Slides

• Tuesday — Cut and Fill — Earthwork as the difference of two surfaces: cut and fill cell by cell, the balance grade of a level pad, ArcGIS Pro's Cut Fill tool, average end area for roads, and what a grid volume leaves out.
• Thursday — Volumes with Rasters — How much rock is in a mountain: height times cell area summed, Raster Calculator and Zonal Statistics versus Surface Volume, why the base surface decides the answer, and Lab 9.

Press F for fullscreen and P for presenter view with speaker notes.

In-Class Practice

Self-check quizzes — not graded; open them on a phone or laptop as often as you like:

• Cut or Fill? — Five questions on cut versus fill, raising a pad's grade, the balance grade, the sign of Cut Fill's VOLUME, and what a grid volume leaves out.
• The Base Is the Answer — Five questions on a cell's volume, why a DEM must be projected first, when Surface Volume is enough, and why the base surface decides a mountain's volume.

Lab Assignment

Lab 9 — Big Southern Butte

Due Saturday at 11:59 pm as one PDF report on Learning Suite — 50 points.

Reading Quiz

Read Chapter 9 of GIS Fundamentals, 7th edition (Bolstad).

Quiz 8 — Volumes and Spatial Analysis on Learning Suite: open book, done independently. Due Saturday at 11:59 pm — 20 points.

Note

If you see a discrepancy between Learning Suite and this page, please let me know so I can rectify it.