{"text_format":"2","workbook":"xls","n_sheets":3,"sheets":["Sheet1","Sheet2","Sheet3"],"not_rendered":{"charts":0,"images":1,"macros":0,"external_links":0,"defined_names":0,"comments":0,"pivot_tables":0},"unopened":[],"bounds":{"document_bytes":16777216,"sheet_cells":100000,"run_cost":"one","rows_first":2000,"rows_last":500,"rows_between":2000,"halvings":0,"cell_chars":16384,"cell_head_chars":4096},"cells_cut":0,"cells_raw":0,"read":"whole","date_system":"1900","formulas":"cached_only"}

{"sheet":"Sheet1","index":0,"n_rows":57,"n_cols":7,"rows_kept":57,"cut":false,"hidden":false,"merged":[],"flags":["formulas_cached_only"]}
[]
[]
[]
[null,"Geology 310 -Lab Week 4 Glaciation and Climate Change"]
[null,"Cathy Connor"]
[null,"Athabasca Glacier Model Worksheet"]
[{"$nulls":5}," "]
[null,"Glacier discharges 2.4x10^4 meters^3 per year of sediment"]
[null,"Meltwater is generated from an area of 12x10^6 meters^2"]
[]
[]
[null,"Scenario 1-Erosion Rate=E is equal at all points of the cross section"]
[]
[null,"Scenario 2 -Erosion rate along the base is controlled by basal velocity"]
[null,"                as given by E=AUb2"]
[null,"where E=local erosion rate in meters per year"]
[null,null,"A=a constant"]
[null,null,"Ub= the local basal ice velocity"]
[]
[]
[null,"Scenario 3-the erosion rate at a point at the base of the glacier"]
[null,null," is controlled by ice thickness (d) as given by:"]
[null,null,"E=Bd"]
[null,null,"where b is a constant and d is in meters"]
[]
[]
[null,"Data Table for Scenarios 2 and 3"]
[{"$nulls":4},"Scenario 2",null,"Scenario 3"]
[null,"Basal Segment W (m)","Velocity Ub (m/yr)","Ub2","E(100,000)=1x105(A)(Ub2)","Ice Depth d (meters)","E(100,000)=1x105(B)(d)"]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
["etc………"]
[]
[null,null,"Sum Ub2=",null,null,"Sum d="]
[]
[]
[null,"determine constant A",null,null,null,"determine constant B"]
[null,"A=(Eav) (Wtot)/(W) (Sum Ub2)=",null,null,null,"B=(Eav)(Wt)/(W)(Sumd)="]

{"sheet":"Sheet2","index":1,"n_rows":0,"n_cols":0,"rows_kept":0,"cut":false,"hidden":false,"merged":[],"flags":["formulas_cached_only"]}

{"sheet":"Sheet3","index":2,"n_rows":0,"n_cols":0,"rows_kept":0,"cut":false,"hidden":false,"merged":[],"flags":["formulas_cached_only"]}