Question Consider the design of a deep open drainage ditch to lower the groundwater below an urban area
where a minimum clearance of 1m between urban foundations and the water table is needed.
• The urban area is in Perth in Western Australia.
• The land surface is flat, and the drains will run parallel to each other before discharging offsite.
• The soil is sand with a Ksat of 500 cm/day. Other soil parameters can be taken from Laio et al
(2001).
Your task is to design the depth and spacing of the drainage ditches to protect the foundations of the
houses. The urban area will be newly built and, at least at first, there will be only grass growing in the
area between the houses. Home-owners will irrigate their grassed areas following existing regulations
(e.g. 2 times a week, except in the June-August period when irrigation is banned).
In accordance with local planning laws, each block will have a maximum of 60% impermeable surfaces,
with the remaining 40% being permeable surfaces. Water collected on the house roofs and paths etc.
will be infiltrated into the soil and will add to the infiltration volume.
Your design should be based on a single year’s rainfall and potential evaporation data (like in Guided
Design 2 – you can re-use the data from that design if you like).
You will need to use a water balance for the unsaturated zone (e.g. over the grassed areas) to estimate
the recharge, enabling you to design the drainage system.
Your design should specify:
• The spacing of the drains
• The depth of the drains
• The resulting water table elevation
• All assumptions made to generate the parameters for the equation
You can assume that:
• Having estimated the recharge below the grass on daily timescales, you can average these
numbers in space (to account for the impermeable areas) and time (over all days) to obtain an
estimated steady state recharge value.
• The drains can be designed for steady state conditions
You will need to provide model data showing the performance of your drains and in particular
demonstrating that the water table elevation is acceptable.
You must bear costs and practicality in mind (we can’t have an open ditch running through a house!)
but, you do not have to prove that you have the “best” solution. Define a reasonable solution and show
that it works, or show that it cannot work and recommend abandoning this solution for water table
management.
There are no set page limits, but guidance on expected length is given below.
The quality of writing and figures forms 20% of your mark.
For your exam you should submit:
(i)
(ii)
(iii)
(iv)
A problem appraisal (~1 page, including figures, 20%).
A mathematical framework (~1 page, including figures, 20%).
A design strategy and its results (~1 page, including figures, 20%).
A recommended design (~1 page, including figures, 20%).
Guidance for what should go into these sections is given next.
A detailed rubric is presented at the end of the document – please make sure you read it.
NOTE: If you cannot make the problem “work”, outline what you WOULD do to complete the design if
you got past the sticking point. A good strategy with clear steps will get you a long way there.
(i)
A problem appraisal.
Outline:
• The design criteria
• Environmental variables that can’t be changed
• Design variables that can be controlled
• How the unsaturated water balance and the saturated zone water balance interact
with each other.
• Any other constraints on the design?
Include words and any sketches/drawings needed to define the problem.
(ii)
Mathematical framework
Describe the framework you will use to make a simple model of your urban area.
This section should not include any derivations from a Control Volume (these are not
needed).
You are welcome to re-use the model from GD2. It may need modification. Therefore, this
section should include:
• Diagram(s) that you used to analyse flow of water into the soil, to the groundwater,
and then into the drain.
• Any simplifying assumptions that you will make. You should make enough
simplifications that you can use the tools you have from class and the GDs.
• The governing equations you will use, including a definition of all terms, their values
and units.
• How you will solve the equations. Assuming you will do this by modifying the GD2
spreadsheet, explain those modifications. If you use a different approach, please
explain that approach.
(iii)
Explain and present results from a design strategy.
This section should explain how the mathematical framework you defined above is used to
test different designs and come up with your garden dimensions, soil depth and plant
properties.
The strategy should clearly explain how you use the output from the model to check the
rain garden performance.
Results demonstrating the performance of your recommended design should be presented
here.
(iv)
Recommended design
This 1-page max section should show your recommended design.
It should contain a drawing or drawings, and all important information needed to
implement the design./nSheet1
Year
Month
Day
Day of year
Rainfall (cm)
Eto (cm)
EP (cm)
S
ET
Leakage Laio
Max Leakage
Actual Leakage
Irrigation Input
Irrigation applied
Runoff
dSdt
Leakage during irrigation
Total leakage
Minimum soil moisture for plant health
Plant name:
Turf
2018
1
1
1
0
0.76
0.7
0
0
Crop coefficient:
0.8
2018
1
2
2
0
0.75
0
Root depth:
30
cm
2018
1
3
3
0
0.73
Maximum depletion:
0.3
2018
1
4
4
0
0.91
0
Plant available water
2018
1
5
5
0
0.96
0
Depletion
2018
1
6
6
0
0.86
2018
1
7
7
0
0.83000000000000007
0
2018
1
8
8
0
0.7400000000000001
0
Soil type
Sandy Clay Loam
2018
1
9
9
0
0.69000000000000006
0
Ksat
80
cm/day
2018
1
10
10
0
0.66
n
0.43
2018
1
11
11
0
0.94000000000000006
0
beta
13.8
2018
1
12
12
0
1.02
0
sh
0.14000000000000001
2018
1
13
13
0
1.3
sw
0.18
2018
1
14
14
0
0.73
0
sstar
0.46
2018
1
15
15
0
0.65
0
sfc
0.56000000000000005
2018
1
16
16
0
0.63
0
2018
1
17
17
0
0.71
Minimum S
2018
1
18
18
0
0.79
0
2018
1
19
19
0
0.78
0
Irrigation efficiency
0.6
2018
1
20
20
0
0.70000000000000007
Irrigation volume
3
cm/day
2018
1
21
21
0
0.66
0
2018
1
22
22
0
0.73
0
2018
1
23
23
0
0.69000000000000006
0
2018
1
24
24
0
0.67199200000000003
2018
1
25
25
0
0.65398400000000001
0
2018
1
26
26
0
0.634108
0
2018
1
27
27
0
0.73205400000000009
2018
1
28
28
0
0.83000000000000007
0
2018
1
29
29
0
0.87
0
2018
1
30
30
0
1.1000000000000001
0
2018
1
31
31
0
1.05
2018
2
1
32
0
0.82
0
2018
2
2
33
0
0.64000000000000012
0
2018
2
3
34
0
0.72000000000000008
2018
2
4
35
0
0.75
0
2018
2
5
36
0
0.8
0
2018
2
6
37
0
0.73
0
2018
2
7
38
8.0000000000000016E-2
0.83000000000000007
2018
2
8
39
0
0.71
0
2018
2
9
40
0
0.72000000000000008
0
2018
2
10
41
0
0.66
2018
2
11
42
0
0.61
0
2018
2
12
43
0
0.73
0
2018
2
13
44
0
0.8
0
2018
2
14
45
0
0.83000000000000007
2018
2
15
46
0
0.69373600000000002
0
2018
2
16
47
0
0.44031699999999996
0
2018
2
17
48
0
0.57515850000000002
2018
2
18
49
0
0.57515850000000002
0
2018
2
19
50
0
0.71
0
2018
2
20
51
0
0.65
0
2018
2
21
52
0
0.69000000000000006
2018
2
22
53
0
0.69000000000000006
0
2018
2
23
54
0
0.71
0
2018
2
24
55
0
0.65
2018
2
25
56
0
0.54
0
2018
2
26
57
0
0.66
0
2018
2
27
58
0
0.78
0
2018
2
28
59
0
0.81
2018
3
1
60
0
0.57999999999999996
0
2018
3
2
61
0
0.59000000000000008
0
2018
3
3
62
0
0.64000000000000012
2018
3
4
63
0
0.61
0
2018
3
5
64
0
0.65
0
2018
3
6
65
0
0.89500000000000002
0
2018
3
7
66
0
0.89500000000000002
2018
3
8
67
0
1.1400000000000001
0
2018
3
9
68
0
1.1800000000000002
0
2018
3
10
69
0
1.1100000000000001
2018
3
11
70
0
1.1100000000000001
0
2018
3
12
71
0
1.03
0
2018
3
13
72
4.0000000000000008E-2
0.71
0
2018
3
14
73
0
0.72000000000000008
2018
3
15
74
0
0.69000000000000006
0
2018
3
16
75
0
0.77
0
2018
3
17
76
0
0.86
2018
3
18
77
0
0.98000000000000009
0
2018
3
19
78
0
1.03
0
2018
3
20
79
0
0.9
0
2018
3
21
80
0
0.57000000000000006
2018
3
22
81
0
0.55999999999999994
0
2018
3
23
82
0
0.85000000000000009
0
2018
3
24
83
0
0.54
2018
3
25
84
0
0.5
0
2018
3
26
85
0
0.53
0
2018
3
27
86
0
0.63
0
2018
3
28
87
0
0.70000000000000007
2018
3
29
88
0
0.79
0
2018
3
30
89
0
0.55000000000000004
0
2018
3
31
90
0
0.59000000000000008
2018
4
1
91
0
0.65
0
2018
4
2
92
0
0.57999999999999996
0
2018
4
3
93
0
0.62000000000000011
0
2018
4
4
94
0
0.96
2018
4
5
95
0
0.83000000000000007
0
2018
4
6
96
0
0.71
0
2018
4
7
97
0
0.66
2018
4
8
98
0
0.53
0
2018
4
9
99
0
0.60000000000000009
0
2018
4
10
100
0
0.75
0
2018
4
11
101
0
0.7400000000000001
2018
4
12
102
0
0.78
0
2018
4
13
103
0
0.68
0
2018
4
14
104
0
0.73
2018
4
15
105
0
0.70000000000000007
0
2018
4
16
106
0
0.78
0
2018
4
17
107
0
0.72000000000000008
0
2018
4
18
108
0
0.57999999999999996
2018
4
19
109
0
0.48
0
2018
4
20
110
0
0.55999999999999994
0
2018
4
21
111
0
0.45999999999999996
2018
4
22
112
0
0.67
0
2018
4
23
113
0
0.5
0
2018
4
24
114
0
0.48
0
2018
4
25
115
0
0.48
2018
4
26
116
0
0.45
0
2018
4
27
117
0
0.51
0
2018
4
28
118
0
0.48
2018
4
29
119
0
0.55000000000000004
0
2018
4
30
120
0
0.55000000000000004
0
2018
5
1
121
0
0.55000000000000004
0
2018
5
2
122
0
0.62000000000000011
2018
5
3
123
0
0.70000000000000007
0
2018
5
4
124
0
0.68
0
2018
5
5
125
0
0.60000000000000009
2018
5
6
126
0
0.42000000000000004
0
2018
5
7
127
0
0.42000000000000004
0
2018
5
8
128
0
0.38
0
2018
5
9
129
0
0.48
2018
5
10
130
0
0.31000000000000005
0
2018
5
11
131
0
0.36000000000000004
0
2018
5
12
132
2.0000000000000004E-2
0.59000000000000008
2018
5
13
133
0
0.7400000000000001
0
2018
5
14
134
0
0.72000000000000008
0
2018
5
15
135
0
0.8
0
2018
5
16
136
0
0.76
2018
5
17
137
0
0.65
0
2018
5
18
138
0
0.61
0
2018
5
19
139
0
0.63
2018
5
20
140
0
0.68
0
2018
5
21
141
0
0.60000000000000009
0
2018
5
22
142
0
0.55999999999999994
0
2018
5
23
143
0
0.4
2018
5
24
144
0
0.64000000000000012
0
2018
5
25
145
1.8600000000000003
0.36000000000000004
0
2018
5
26
146
2.0000000000000004E-2
0.36000000000000004
2018
5
27
147
2.0000000000000004E-2
0.28999999999999998
0
2018
5
28
148
0
0.4
0
2018
5
29
149
0
0.51
0
2018
5
30
150
0
0.45999999999999996
2018
5
31
151
0
0.35000000000000003
0
2018
6
1
152
0
0.37000000000000005
0
2018
6
2
153
0
0.45999999999999996
2018
6
3
154
0
0.39
0
2018
6
4
155
4.0000000000000008E-2
0.53
0
2018
6
5
156
3.2200000000000006
0.49000000000000005
0
2018
6
6
157
0.06
0.26
2018
6
7
158
2.0000000000000004E-2
0.26
0
2018
6
8
159
0
0.25
0
2018
6
9
160
0
0.27
2018
6
10
161
0
0.27999999999999997
0
2018
6
11
162
0
0.31000000000000005
0
2018
6
12
163
0
0.37000000000000005
0
2018
6
13
164
0
0.37000000000000005
2018
6
14
165
0
0.41
0
2018
6
15
166
0
0.44000000000000006
0
2018
6
16
167
0
0.43
2018
6
17
168
0
0.41
0
2018
6
18
169
1.54
0.11000000000000001
0
2018
6
19
170
0.48
0.30000000000000004
0
2018
6
20
171
0
0.33
2018
6
21
172
0
0.43
0
2018
6
22
173
0
0.41
0
2018
6
23
174
0
0.44000000000000006
2018
6
24
175
0
0.44000000000000006
0
2018
6
25
176
0
0.39
0
2018
6
26
177
0
0.38
0
2018
6
27
178
0
0.32000000000000006
2018
6
28
179
0
0.26
0
2018
6
29
180
0
0.37000000000000005
0
2018
6
30
181
0
0.37000000000000005
2018
7
1
182
0
0.48
0
2018
7
2
183
0
0.46761199999999992
0
2018
7
3
184
0
0.45522399999999996
0
2018
7
4
185
0
0.40761199999999997
2018
7
5
186
0
0.40761199999999997
0
2018
7
6
187
0
0.36000000000000004
0
2018
7
7
188
0
0.38
2018
7
8
189
0
0.31000000000000005
0
2018
7
9
190
0
0.22999999999999998
0
2018
7
10
191
0
0.22999999999999998
0
2018
7
11
192
0
0.28999999999999998
2018
7
12
193
0
0.30000000000000004
0
2018
7
13
194
0
0.27
0
2018
7
14
195
0
0.22999999999999998
2018
7
15
196
0.13999999999999999
0.33
0
2018
7
16
197
2.0000000000000004E-2
0.31000000000000005
0
2018
7
17
198
0
0.32000000000000006
0
2018
7
18
199
0
0.39
2018
7
19
200
0
0.42000000000000004
0
2018
7
20
201
0
0.26
0
2018
7
21
202
0
0.31000000000000005
2018
7
22
203
0
0.30000000000000004
0
2018
7
23
204
2.0000000000000004E-2
0.27999999999999997
0
2018
7
24
205
2.0000000000000004E-2
0.34
0
2018
7
25
206
0
0.33
2018
7
26
207
0.2
0.33
0
2018
7
27
208
0
0.33
0
2018
7
28
209
0
0.45
2018
7
29
210
0
0.39
0
2018
7
30
211
0
0.34
0
2018
7
31
212
0
0.33
0
2018
8
1
213
0
0.4
2018
8
2
214
0
0.44000000000000006
0
2018
8
3
215
0
0.31000000000000005
0
2018
8
4
216
0.1
0.35000000000000003
2018
8
5
217
0.12
0.45
0
2018
8
6
218
0
0.43
0
2018
8
7
219
0
0.41
0
2018
8
8
220
0
0.27999999999999997
2018
8
9
221
0
0.36000000000000004
0
2018
8
10
222
0.30000000000000004
0.43
0
2018
8
11
223
0
0.53
2018
8
12
224
0
0.51
0
2018
8
13
225
0
0.53
0
2018
8
14
226
0
0.42000000000000004
0
2018
8
15
227
0
0.45999999999999996
2018
8
16
228
0
0.45
0
2018
8
17
229
0
0.54
0
2018
8
18
230
0
0.66
2018
8
19
231
0
0.47000000000000003
0
2018
8
20
232
0
0.45999999999999996
0
2018
8
21
233
0
0.41
0
2018
8
22
234
0
0.52500000000000002
2018
8
23
235
0
0.52500000000000002
0
2018
8
24
236
0
0.64000000000000012
0
2018
8
25
237
0
0.55999999999999994
2018
8
26
238
0
0.39
0
2018
8
27
239
0
0.43
0
2018
8
28
240
0
0.33
0
2018
8
29
241
0.1
0.4
2018
8
30
242
0.60000000000000009
0.42000000000000004
0
2018
8
31
243
2.0000000000000004E-2
0.44000000000000006
0
2018
9
1
244
0
0.52
2018
9
2
245
0
0.47000000000000003
0
2018
9
3
246
0
0.5
0
2018
9
4
247
0
0.43
0
2018
9
5
248
0
0.45
2018
9
6
249
0
0.53
0
2018
9
7
250
0
0.55999999999999994
0
2018
9
8
251
0
0.64000000000000012
2018
9
9
252
0
0.52
0
2018
9
10
253
0
0.43
0
2018
9
11
254
0
0.52
0
2018
9
12
255
0
0.60000000000000009
2018
9
13
256
0
0.57999999999999996
0
2018
9
14
257
0
0.63
0
2018
9
15
258
0
0.81
2018
9
16
259
0
0.55999999999999994
0
2018
9
17
260
0
0.64000000000000012
0
2018
9
18
261
0
0.69000000000000006
0
2018
9
19
262
0
0.79
2018
9
20
263
0
0.85000000000000009
0
2018
9
21
264
0
0.70000000000000007
0
2018
9
22
265
0
0.70000000000000007
2018
9
23
266
0
0.53
0
2018
9
24
267
0
0.68
0
2018
9
25
268
0
0.52
0
2018
9
26
269
0
0.67
2018
9
27
270
0
0.67
0
2018
9
28
271
0
0.67
0
2018
9
29
272
0
0.45
2018
9
30
273
0.42000000000000004
0.48
0
2018
10
1
274
0
0.5
0
2018
10
2
275
0
0.45999999999999996
0
2018
10
3
276
0
0.5
2018
10
4
277
0
0.45025499999999996
0
2018
10
5
278
0
0.54
0
2018
10
6
279
0
0.49000000000000005
2018
10
7
280
0
0.54
0
2018
10
8
281
0
0.55000000000000004
0
2018
10
9
282
0
0.53
0
2018
10
10
283
0
0.54
2018
10
11
284
0
0.57000000000000006
0
2018
10
12
285
0
0.52
0
2018
10
13
286
0
0.47000000000000003
2018
10
14
287
0
0.60000000000000009
0
2018
10
15
288
0
0.69000000000000006
0
2018
10
16
289
0
0.70000000000000007
0
2018
10
17
290
0
0.55000000000000004
2018
10
18
291
0
0.62000000000000011
0
2018
10
19
292
2.0000000000000004E-2
0.69000000000000006
0
2018
10
20
293
0
0.65
2018
10
21
294
0
0.64000000000000012
0
2018
10
22
295
0
0.65
0
2018
10
23
296
0
0.63
0
2018
10
24
297
0
0.55000000000000004
2018
10
25
298
0
0.61
0
2018
10
26
299
0
0.55999999999999994
0
2018
10
27
300
0
0.55999999999999994
2018
10
28
301
0
0.62000000000000011
0
2018
10
29
302
0
0.61
0
2018
10
30
303
0
0.61
0
2018
10
31
304
0
0.55000000000000004
2018
11
1
305
0
0.53
0
2018
11
2
306
0
0.57000000000000006
0
2018
11
3
307
0
0.57999999999999996
2018
11
4
308
0
0.64000000000000012
0
2018
11
5
309
0
0.72000000000000008
0
2018
11
6
310
0
0.8
0
2018
11
7
311
0
1.07
2018
11
8
312
0
0.55999999999999994
0
2018
11
9
313
0
0.51
0
2018
11
10
314
0
0.44000000000000006
2018
11
11
315
0
0.55999999999999994
0
2018
11
12
316
0
0.72000000000000008
0
2018
11
13
317
0
1
0
2018
11
14
318
0
1.1500000000000001
2018
11
15
319
0
0.67
0
2018
11
16
320
0
0.55999999999999994
0
2018
11
17
321
0
0.60000000000000009
2018
11
18
322
0
0.73
0
2018
11
19
323
0
0.86
0
2018
11
20
324
0
0.94000000000000006
0
2018
11
21
325
0
1.02
2018
11
22
326
0
0.61
0
2018
11
23
327
0
0.75
0
2018
11
24
328
0
0.8
2018
11
25
329
0
0.68
0
2018
11
26
330
0
0.77
0
2018
11
27
331
0
0.61
0
2018
11
28
332
0
0.63
2018
11
29
333
0
0.64000000000000012
0
2018
11
30
334
0
0.60000000000000009
0
2018
12
1
335
0
0.87
2018
12
2
336
0
0.8
0
2018
12
3
337
0
0.57999999999999996
0
2018
12
4
338
0
0.67
0
2018
12
5
339
0
0.65
2018
12
6
340
0
0.68
0
2018
12
7
341
0
0.77
0
2018
12
8
342
0
0.77
2018
12
9
343
0
0.68
0
2018
12
10
344
0
0.57000000000000006
0
2018
12
11
345
0
0.65
0
2018
12
12
346
0
0.82
2018
12
13
347
0
0.66
0
2018
12
14
348
0
0.54
0
2018
12
15
349
0
0.61
2018
12
16
350
0
0.67
0
2018
12
17
351
2.0000000000000004E-2
0.71
0
2018
12
18
352
0
0.72000000000000008
0
2018
12
19
353
0
0.97
2018
12
20
354
0
1.31
0
2018
12
21
355
0
0.7400000000000001
0
2018
12
22
356
0
0.42000000000000004
2018
12
23
357
0
0.82
0
2018
12
24
358
0
1.2400000000000002
0
2018
12
25
359
0
1.02
0
2018
12
26
360
0
0.93000000000000016
2018
12
27
361
0
1.07
0
2018
12
28
362
0
0.95000000000000007
0
2018
12
29
363
0
0.93000000000000016
2018
12
30
364
0
0.72000000000000008
0
2018
12
31
365
0
0.9900000000000001
0
Sheet2
Evapo-
Pan
Maximum
Minimum
Average
Transpiration
Rain
Evaporation
Maximum
Minimum
Relative
Relative
10m Wind
Solar
Station Name
Date
0000-2400
0900-0900
0900-0900
Temperature
Temperature
Humidity
Humidity
Speed
Radiation
(mm)
(mm)
(mm)
(°C)
(°C)
(%)
(%)
(m/sec)
(MJ/sq m)
Reasonable Pan Evap
CARNARVON AIRPORT
01/01/2018
7.6
0
32.799999999999997
24.4
100
52
8.24
30.75
CARNARVON AIRPORT
02/01/2018
7.5
0
11.2
31.8
22.6
83
50
5.58
30.8
CARNARVON AIRPORT
03/01/2018
7.3
0
32
24.2
88
58
6.13
30.7
CARNARVON AIRPORT
04/01/2018
9.1
0
11.8
34.6
25.1
74
40
7.02
29.18
CARNARVON AIRPORT
05/01/2018
9.6
0
32.799999999999997
26
74
38
8.7899999999999991
29.91
CARNARVON AIRPORT
06/01/2018
8.6
0
30.2
22.3
81
43
9.9
30.62
CARNARVON AIRPORT
07/01/2018
8.3000000000000007
0
30.4
22.5
78
48
9.56
30.5
CARNARVON AIRPORT
08/01/2018
7.4
0
30
22.6
83
56
8.4499999999999993
30.39
CARNARVON AIRPORT
09/01/2018
6.9
0
15
29.6
22.9
84
58
7.18
29.69
CARNARVON AIRPORT
10/01/2018
6.6
0
7
28.5
23.1
85
57
9.5
26.59
CARNARVON AIRPORT
11/01/2018
9.4
0
10.6
30.4
20.2
77
34
10.92
29.94
CARNARVON AIRPORT
12/01/2018
10.199999999999999
0
14.4
34.1
19.7
73
36
10.16
30.13
CARNARVON AIRPORT
13/01/2018
13
0
42.6
23.4
69
18
7.92
25.42
CARNARVON AIRPORT
14/01/2018
7.3
0
32.700000000000003
28.1
100
40
6.25
25.93
CARNARVON AIRPORT
15/01/2018
6.5
0
35.6
32.200000000000003
25.6
100
61
5.33
28.93
CARNARVON AIRPORT
16/01/2018
6.3
0
9.8000000000000007
30.1
24.7
93
61
5.48
28.05
CARNARVON AIRPORT
17/01/2018
7.1
0
10.199999999999999
30.4
24.4
81
57
7.01
28.58
CARNARVON AIRPORT
18/01/2018
7.9
0
31.2
23.8
79
53
8.9
29.42
CARNARVON AIRPORT
19/01/2018
7.8
0
11.6
31.7
23.5
85
50
7.71
29.74
CARNARVON AIRPORT
20/01/2018
7
0
31.1
25.5
85
62
7.53
29.02
CARNARVON AIRPORT
21/01/2018
6.6
0
31.2
24.8
87
64
7.37
27.61
CARNARVON AIRPORT
22/01/2018
7.3
0
27.4
31.4
25.4
82
62
8.4
29.42
CARNARVON AIRPORT
23/01/2018
6.9
0
9.6
31.1
24.8
88
60
7.94
27.87
CARNARVON AIRPORT
24/01/2018
0
23.8
88
62
8.9600000000000009
26.96
CARNARVON AIRPORT
25/01/2018
10.6
100
77
1.71
28.65
CARNARVON AIRPORT
26/01/2018
0
10.199999999999999
100
100
0
29.38
CARNARVON AIRPORT
27/01/2018
29.4
100
60
9.16
29.09
CARNARVON AIRPORT
28/01/2018
8.3000000000000007
0
30.6
22
80
48
11.42
28.99
CARNARVON AIRPORT
29/01/2018
8.6999999999999993
0
33.799999999999997
23.8
79
47
8.69
28.73
CARNARVON AIRPORT
30/01/2018
11
0
12.4
37.700000000000003
24.8
76
23
7.38
29.14
CARNARVON AIRPORT
31/01/2018
10.5
0
15
33.700000000000003
23.1
71
25
8.67
29
CARNARVON AIRPORT
01/02/2018
8.1999999999999993
0
13.8
30.9
20.7
79
32
6.42
29.28
CARNARVON AIRPORT
02/02/2018
6.4
0
10.8
29.5
23.9
91
62
7.12
29.04
CARNARVON AIRPORT
03/02/2018
7.2
0
29.7
23.1
82
52
8.16
27.43
CARNARVON AIRPORT
04/02/2018
7.5
0
29.8
22.9
79
54
9.56
28.68
CARNARVON AIRPORT
05/02/2018
8
0
31.6
30.6
23.5
82
47
9.5500000000000007
28.69
CARNARVON AIRPORT
06/02/2018
7.3
0
11.6
31.3
24.7
85
59
9.3699999999999992
28.73
CARNARVON AIRPORT
07/02/2018
8.3000000000000007
0.8
31.8
23.4
84
46
9.5399999999999991
28.5
CARNARVON AIRPORT
08/02/2018
7.1
0
31.1
23.7
84
58
7.5
28.98
CARNARVON AIRPORT
09/02/2018
7.2
0
11.6
31.1
24.6
87
58
9.1300000000000008
28.66
CARNARVON AIRPORT
10/02/2018
6.6
0
30.6
23.8
78
55
7.93
21.36
CARNARVON AIRPORT
11/02/2018
6.1
0
31
24.8
82
63
5.28
24.84
CARNARVON AIRPORT
12/02/2018
7.3
0
28.6
32.6
25.2
85
56
6.67
28.33
CARNARVON AIRPORT
13/02/2018
8
0
15.4
31.5
24
82
47
8.8000000000000007
28.37
CARNARVON AIRPORT
14/02/2018
8.3000000000000007
0
15.4
31.5
22.9
79
43
8.68
28.26
CARNARVON AIRPORT
15/02/2018
0
11.4
24.9
100
43
7.01
27.85
CARNARVON AIRPORT
16/02/2018
6.3
33.6
79
42
8.2899999999999991
18.66
CARNARVON AIRPORT
17/02/2018
0
24.3
100
58
8.2899999999999991
27.8
CARNARVON AIRPORT
18/02/2018
29.5
76
50
9.0500000000000007
27.04
CARNARVON AIRPORT
19/02/2018
7.1
0
30.2
28.5
22.5
75
56
10.25
26.14
CARNARVON AIRPORT
20/02/2018
6.5
0
11
29.1
22.2
84
61
10.01
27.15
CARNARVON AIRPORT
21/02/2018
6.9
0
11.2
30.9
23.4
86
53
6.56
27.5
CARNARVON AIRPORT
22/02/2018
6.9
0
9.6
30.4
24.8
80
56
6.46
27.25
CARNARVON AIRPORT
23/02/2018
7.1
0
9.6
30.3
23.1
80
55
8.42
26.93
CARNARVON AIRPORT
24/02/2018
6.5
0
30.1
23.1
84
56
6.68
26.71
CARNARVON AIRPORT
25/02/2018
5.4
0
29.5
24
86
62
5.47
21.66
CARNARVON AIRPORT
26/02/2018
6.6
0
27.6
28.7
22.9
80
53
7.17
26.39
CARNARVON AIRPORT
27/02/2018
7.8
0
28.9
20
74
44
10.050000000000001
26.49
CARNARVON AIRPORT
28/02/2018
8.1
0
15.2
30.5
20.7
76
36
8.17
26.42
CARNARVON AIRPORT
01/03/2018
5.8
0
6.2
29.4
23.1
88
67
7.68
26.5
CARNARVON AIRPORT
02/03/2018
5.9
0
7.6
29.3
23.5
88
65
8.48
25.6
CARNARVON AIRPORT
03/03/2018
6.4
0
29.6
22
81
60
8.0299999999999994
26.19
CARNARVON AIRPORT
04/03/2018
6.1
0
31.9
21.5
90
54
4.3600000000000003
26.16
CARNARVON AIRPORT
05/03/2018
6.5
0
33.200000000000003
24.9
88
56
4.83
26.02
CARNARVON AIRPORT
06/03/2018
0
26.1
25.93
CARNARVON AIRPORT
07/03/2018
35.1
24.99
CARNARVON AIRPORT
08/03/2018
11.4
11.7
41.1
24.3
70
11
6.3
25.52
CARNARVON AIRPORT
09/03/2018
11.8
0
12.6
41.2
22.8
77
7
6.57
25.35
CARNARVON AIRPORT
10/03/2018
11.1
0
41
24.5
76
12
6.69
21.77
CARNARVON AIRPORT
11/03/2018
11.1
0
41.6
27.6
71
22
7.09
23.1
CARNARVON AIRPORT
12/03/2018
10.3
0
40.700000000000003
30.3
74
25
7.11
20.84
CARNARVON AIRPORT
13/03/2018
7.1
0.4
9.8000000000000007
35.5
26.1
82
44
4.5
24.51
CARNARVON AIRPORT
14/03/2018
7.2
0
11.6
35.200000000000003
25.8
85
48
5.44
24.77
CARNARVON AIRPORT
15/03/2018
6.9
0
8.8000000000000007
31.9
25.7
85
55
8.5299999999999994
24.59
CARNARVON AIRPORT
16/03/2018
7.7
0
30.9
23.1
80
39
8.2899999999999991
24.32
CARNARVON AIRPORT
17/03/2018
8.6
0
31
22.1
81
30
9.7200000000000006
24.04
CARNARVON AIRPORT
18/03/2018
9.8000000000000007
0
33.700000000000003
20.7
76
18
8.32
23.9
CARNARVON AIRPORT
19/03/2018
10.3
0
31.2
41.1
21.4
78
14
5.71
23.84
CARNARVON AIRPORT
20/03/2018
9
0
39.700000000000003
22.6
86
17
4.9800000000000004
23.66
CARNARVON AIRPORT
21/03/2018
5.7
0
30.5
24.9
85
58
4.6900000000000004
23.55
CARNARVON AIRPORT
22/03/2018
5.6
0
7.6
32.299999999999997
22.9
91
46
4.76
19.21
CARNARVON AIRPORT
23/03/2018
8.5
0
40.9
25.1
79
13
4.43
18.84
CARNARVON AIRPORT
24/03/2018
5.4
0
34.299999999999997
23.5
91
49
4.45
17.079999999999998
CARNARVON AIRPORT
25/03/2018
5
0
31.2
21.6
98
64
4.5199999999999996
22.97
CARNARVON AIRPORT
26/03/2018
5.3
0
30
24.5
89
63
6.12
22.57
CARNARVON AIRPORT
27/03/2018
6.3
0
31.3
23.7
81
55
7.28
22.07
CARNARVON AIRPORT
28/03/2018
7
0
30.9
23
83
45
8.24
22.44
CARNARVON AIRPORT
29/03/2018
7.9
0
11.6
32.5
23.1
78
37
8.15
21.92
CARNARVON AIRPORT
30/03/2018
5.5
0
30.4
24.4
82
64
7.22
20.53
CARNARVON AIRPORT
31/03/2018
5.9
0
29.7
23.1
84
60
9
21.77
01/04/2018
6.5
0
30.3
21.9
83
45
7.44
22
02/04/2018
5.8
0
34.200000000000003
22.4
87
50
4.4400000000000004
21.06
03/04/2018
6.2
0
33.4
24.7
87
49
5.57
21.78
04/04/2018
9.6
0
37.6
24.7
79
16
6.81
21.64
05/04/2018
8.3000000000000007
0
7.2
35.200000000000003
23.7
75
24
6.28
21.41
06/04/2018
7.1
0
11
33
22.5
80
33
5.98
21.22
07/04/2018
6.6
0
30.8
24
81
45
7.62
20.48
08/04/2018
5.3
0
28.1
21
84
57
7.45
20.93
09/04/2018
6
0
23.6
28.7
21.2
81
50
7.97
20.8
10/04/2018
7.5
0
28.9
20
78
31
9.19
20.399999999999999
11/04/2018
7.4
0
28
16.2
74
30
9.31
20.420000000000002
12/04/2018
7.8
0
10.4
28.5
17
75
22
8.57
20.27
13/04/2018
6.8
0
10.6
28.5
17.600000000000001
77
36
8.39
20.3
14/04/2018
7.3
0
31.1
16.600000000000001
80
18
6.01
19.96
15/04/2018
7
0
35.6
18.600000000000001
83
11
4.3499999999999996
16.079999999999998
16/04/2018
7.8
0
36
16.899999999999999
81
9
4.71
19.64
17/04/2018
7.2
0
7
35.700000000000003
19.399999999999999
86
33
5.8
19.7
18/04/2018
5.8
0
9.1999999999999993
28.3
21.2
80
45
7.07
19.37
19/04/2018
4.8
0
26.4
18.5
83
52
5.88
19.510000000000002
20/04/2018
5.6
0
7.6
30.2
18.5
82
32
5.09
15.99
21/04/2018
4.5999999999999996
0
27.6
15.2
92
36
4.0999999999999996
18.399999999999999
22/04/2018
6.7
0
34.6
20.100000000000001
86
18
5
14.21
23/04/2018
5
0
27.4
20.3
84
52
6.58
18.670000000000002
24/04/2018
4.8
0
25.8
18.7
79
50
7.2
14.69
25/04/2018
4.8
0
11.8
25.8
19.5
81
48
6.91
15.06
26/04/2018
4.5
0
5.6
26.5
17.7
87
48
5.36
18.57
27/04/2018
5.0999999999999996
0
5
27.4
19.7
87
44
6.39
18.329999999999998
28/04/2018
4.8
0
28.1
16.2
89
40
4.88
18.43
29/04/2018
0
14.2
98
29
3.81
18.38
30/04/2018
18.16
CARNARVON AIRPORT
01/05/2018
26.2
89
55
6.11
16.61
CARNARVON AIRPORT
02/05/2018
6.2
0
7.6
25.4
18.3
72
34
8.65
17.11
CARNARVON AIRPORT
03/05/2018
7
0
26.1
14.2
66
13
7.33
17.86
CARNARVON AIRPORT
04/05/2018
6.8
0
11
30.8
10.199999999999999
76
12
5.15
17.71
CARNARVON AIRPORT
05/05/2018
6
0
33.799999999999997
13.4
90
16
3.88
17.63
CARNARVON AIRPORT
06/05/2018
4.2
0
29.1
15.2
91
50
4.13
17.63
CARNARVON AIRPORT
07/05/2018
4.2
0
17.399999999999999
26.5
18.7
92
54
6.44
17.489999999999998
CARNARVON AIRPORT
08/05/2018
3.8
0
6.6
24.5
19.2
84
64
6.69
17.38
CARNARVON AIRPORT
09/05/2018
4.8
0
6.6
26.2
16.899999999999999
86
36
5.69
17.27
CARNARVON AIRPORT
10/05/2018
3.1
0
27.1
13.2
99
62
3.24
17.21
CARNARVON AIRPORT
11/05/2018
3.6
0
27.5
16.2
99
52
3.92
17.149999999999999
CARNARVON AIRPORT
12/05/2018
5.9
0.2
34.6
18.7
93
17
4.0199999999999996
17
CARNARVON AIRPORT
13/05/2018
7.4
0
34.4
14.1
69
8
4.96
16.79
CARNARVON AIRPORT
14/05/2018
7.2
0
20.8
31.5
13.7
66
7
5.28
16.78
CARNARVON AIRPORT
15/05/2018
8
0
31
11.1
24
5
5.59
16.57
CARNARVON AIRPORT
16/05/2018
7.6
0
11.6
31.5
14.2
65
8
5.96
16.600000000000001
CARNARVON AIRPORT
17/05/2018
6.5
0
29.7
11.9
60
10
5.05
16.5
CARNARVON AIRPORT
18/05/2018
6.1
0
9
28.4
12.1
68
12
5.07
16.43
CARNARVON AIRPORT
19/05/2018
6.3
0
29.2
10.8
78
8
5.0599999999999996
16.34
CARNARVON AIRPORT
20/05/2018
6.8
0
30
11.5
79
6
5.55
16.27
CARNARVON AIRPORT
21/05/2018
6
0
29.6
11.2
87
9
4.79
16.21
CARNARVON AIRPORT
22/05/2018
5.6
0
6.4
30.8
10.6
87
11
4.08
16.12
CARNARVON AIRPORT
23/05/2018
4
0
29.1
9.6
89
15
2.46
16.059999999999999
CARNARVON AIRPORT
24/05/2018
6.4
0
7
31.7
15.5
99
34
8.65
14.28
CARNARVON AIRPORT
25/05/2018
3.6
18.600000000000001
23.2
20.7
86
53
6.64
12.1
CARNARVON AIRPORT
26/05/2018
3.6
0.2
23.7
17.7
89
51
5.66
15.31
CARNARVON AIRPORT
27/05/2018
2.9
0.2
23.6
11.5
96
53
3.55
15.81
CARNARVON AIRPORT
28/05/2018
4
0
13.2
25.7
13.3
94
42
5.43
15.77
CARNARVON AIRPORT
29/05/2018
5.0999999999999996
0
7.2
28.1
13.6
78
29
5.16
15.69
CARNARVON AIRPORT
30/05/2018
4.5999999999999996
0
29.2
13.5
79
22
3.69
13.88
CARNARVON AIRPORT
31/05/2018
3.5
0
7
27.6
15.9
87
48
3.67
14.76
CARNARVON AIRPORT
01/06/2018
3.7
0
25.3
14.1
92
47
5.1100000000000003
15.53
CARNARVON AIRPORT
02/06/2018
4.5999999999999996
0
28
14
84
28
4.59
12.43
CARNARVON AIRPORT
03/06/2018
3.9
0
31.6
13.9
92
32
2.86
13.87
CARNARVON AIRPORT
04/06/2018
5.3
0.4
12.6
28.1
19.2
88
17
6.03
6.27
CARNARVON AIRPORT
05/06/2018
4.9000000000000004
32.200000000000003
25.3
19.899999999999999
100
19
7.02
10.66
CARNARVON AIRPORT
06/06/2018
2.6
0.6
23.1
18
100
63
3.98
14.88
CARNARVON AIRPORT
07/06/2018
2.6
0.2
22.5
15.4
99
46
3.12
13.15
CARNARVON AIRPORT
08/06/2018
2.5
0
21.9
13.4
100
52
3.14
14.58
CARNARVON AIRPORT
09/06/2018
2.7
0
23.1
12.2
98
45
3.03
14.04
CARNARVON AIRPORT
10/06/2018
2.8
0
23.5
14.6
95
51
3.49
13.86
CARNARVON AIRPORT
11/06/2018
3.1
0
24.9
13.6
100
46
3.58
15.19
CARNARVON AIRPORT
12/06/2018
3.7
0
23.8
12
94
40
5.25
15.16
CARNARVON AIRPORT
13/06/2018
3.7
0
23.4
11.3
93
36
4.96
14.99
CARNARVON AIRPORT
14/06/2018
4.0999999999999996
0
24.2
11
86
31
5.01
15.1
CARNARVON AIRPORT
15/06/2018
4.4000000000000004
0
25.9
10
88
22
4.3899999999999997
15.07
CARNARVON AIRPORT
16/06/2018
4.3
0
26.7
9
86
21
3.83
15.09
CARNARVON AIRPORT
17/06/2018
4.0999999999999996
0
28.9
10.8
98
28
3.58
14.23
CARNARVON AIRPORT
18/06/2018
1.1000000000000001
15.4
19.399999999999999
18.100000000000001
100
85
3.7
5.62
CARNARVON AIRPORT
19/06/2018
3
4.8
20.5
13.2
98
50
6.05
15.1
CARNARVON AIRPORT
20/06/2018
3.3
0
22.5
10.7
86
50
5.13
15.1
CARNARVON AIRPORT
21/06/2018
4.3
0
24
9.5
89
24
4.92
15.1
CARNARVON AIRPORT
22/06/2018
4.0999999999999996
0
11.2
22.9
8.9
84
25
4.71
14.95
CARNARVON AIRPORT
23/06/2018
4.4000000000000004
0
23.8
9.4
82
23
4.92
15.11
CARNARVON AIRPORT
24/06/2018
4.4000000000000004
0
23.9
7.5
79
21
4.57
15.12
CARNARVON AIRPORT
25/06/2018
3.9
0
15
23.9
8.9
82
27
4.1100000000000003
15.13
CARNARVON AIRPORT
26/06/2018
3.8
0
24.6
7.5
96
23
3.65
15.15
CARNARVON AIRPORT
27/06/2018
3.2
0
23.6
8.4
98
22
2.89
15.17
CARNARVON AIRPORT
28/06/2018
2.6
0
23.3
9.4
95
59
3.81
15.16
CARNARVON AIRPORT
29/06/2018
3.7
0
24
11.2
93
36
4.8
15.21
CARNARVON AIRPORT
30/06/2018
3.7
0
26
9.6
95
28
3.37
15.24
CARNARVON AIRPORT
01/07/2018
4.8
0
27.3
11.4
84
19
4.38
14.66
CARNARVON AIRPORT
02/07/2018
0
14.5
100
51
7.26
15
CARNARVON AIRPORT
03/07/2018
6.6
21.4
100
58
4.3600000000000003
10.81
CARNARVON AIRPORT
04/07/2018
0
13.1
100
47
3.74
14.79
CARNARVON AIRPORT
05/07/2018
21.7
96
47
6.21
15.4
CARNARVON AIRPORT
06/07/2018
3.6
0
20
9.1
88
32
5.34
15.45
CARNARVON AIRPORT
07/07/2018
3.8
0
22.5
7.2
90
25
4.3
15.49
CARNARVON AIRPORT
08/07/2018
3.1
0
23.1
6.1
94
29
2.87
15.54
CARNARVON AIRPORT
09/07/2018
2.2999999999999998
0
22.2
7.6
100
50
2.15
15.59
CARNARVON AIRPORT
10/07/2018
2.2999999999999998
0
22.1
9
100
55
2.1
15.64
CARNARVON AIRPORT
11/07/2018
2.9
0
22.9
10.6
100
50
3.74
15.69
CARNARVON AIRPORT
12/07/2018
3
0
22.9
10.1
92
38
2.9
15.75
CARNARVON AIRPORT
13/07/2018
2.7
0
22.8
10.8
93
53
3.2
15.81
CARNARVON AIRPORT
14/07/2018
2.2999999999999998
0
21.3
10.5
100
60
3.56
13.97
CARNARVON AIRPORT
15/07/2018
3.3
1.4
21
12.5
99
45
5.89
15.45
CARNARVON AIRPORT
16/07/2018
3.1
0.2
10.3
21.9
8.5
96
45
4.32
15.72
CARNARVON AIRPORT
17/07/2018
3.2
0
23
9.8000000000000007
99
45
4.3499999999999996
16.059999999999999
CARNARVON AIRPORT
18/07/2018
3.9
0
23.6
10.1
93
38
5.12
16.14
CARNARVON AIRPORT
19/07/2018
4.2
0
23.4
9.3000000000000007
85
32
5.14
16.21
CARNARVON AIRPORT
20/07/2018
2.6
0
21.2
8.6
99
48
2.86
16.29
CARNARVON AIRPORT
21/07/2018
3.1
0
24.6
9.8000000000000007
100
51
3.58
16.36
CARNARVON AIRPORT
22/07/2018
3
0
24.6
16.2
97
64
5.18
15.6
CARNARVON AIRPORT
23/07/2018
2.8
0.2
22.6
12.6
99
48
3.38
13.44
CARNARVON AIRPORT
24/07/2018
3.4
0.2
23.4
14.7
81
34
3.01
16.05
CARNARVON AIRPORT
25/07/2018
3.3
0
23.8
9.1999999999999993
98
51
5.0599999999999996
14.98
CARNARVON AIRPORT
26/07/2018
3.3
2
21.7
13.6
90
49
5.15
14.63
CARNARVON AIRPORT
27/07/2018
3.3
0
6.4
21.4
8.9
98
48
5.32
16.88
CARNARVON AIRPORT
28/07/2018
4.5
0
24.1
13.6
91
35
6.31
16.97
CARNARVON AIRPORT
29/07/2018
3.9
0
23.2
11
91
36
4.75
17.07
CARNARVON AIRPORT
30/07/2018
3.4
0
14.6
21.5
10.9
89
50
5.04
17.16
CARNARVON AIRPORT
31/07/2018
3.3
0
21.8
11.6
93
50
4.8
17.260000000000002
CARNARVON AIRPORT
01/08/2018
4
0
22.9
12.7
95
49
8.14
15.93
CARNARVON AIRPORT
02/08/2018
4.4000000000000004
0
7.6
20.8
14.2
80
41
7.95
16.79
CARNARVON AIRPORT
03/08/2018
3.1
0
7
21.3
7.6
95
40
3.28
17.329999999999998
CARNARVON AIRPORT
04/08/2018
3.5
1
21.6
14.2
94
51
6.29
16.45
CARNARVON AIRPORT
05/08/2018
4.5
1.2
21.1
10.4
75
40
7.46
17.55
CARNARVON AIRPORT
06/08/2018
4.3
0
21.3
6.8
81
30
5.47
17.71
CARNARVON AIRPORT
07/08/2018
4.0999999999999996
0
21.7
8
88
33
5.07
17.8
CARNARVON AIRPORT
08/08/2018
2.8
0
20.9
9.1999999999999993
97
60
4.03
17.93
CARNARVON AIRPORT
09/08/2018
3.6
0
24
10.6
99
53
6.26
15.93
CARNARVON AIRPORT
10/08/2018
4.3
3
20.3
10.3
92
35
7.42
18.09
CARNARVON AIRPORT
11/08/2018
5.3
0
22.6
6.3
73
13
5.35
18.23
CARNARVON AIRPORT
12/08/2018
5.0999999999999996
0
25.1
4.4000000000000004
85
12
4.16
18.36
CARNARVON AIRPORT
13/08/2018
5.3
0
19.600000000000001
27.1
6.7
89
12
3.94
18.47
CARNARVON AIRPORT
14/08/2018
4.2
0
26.3
11.6
93
50
5.48
17.600000000000001
CARNARVON AIRPORT
15/08/2018
4.5999999999999996
0
23.3
15.7
88
43
7.56
18.09
CARNARVON AIRPORT
16/08/2018
4.5
0
20.8
11
74
45
7.45
18.760000000000002
CARNARVON AIRPORT
17/08/2018
5.4
0
7.6
23.7
12.1
85
30
7.3
18.88
CARNARVON AIRPORT
18/08/2018
6.6
0
29.1
10.3
76
18
5.68
19.010000000000002
CARNARVON AIRPORT
19/08/2018
4.7
0
28.6
11
88
23
3.1
19.22
CARNARVON AIRPORT
20/08/2018
4.5999999999999996
0
16.600000000000001
25.9
10.6
97
31
4.3
19.27
CARNARVON AIRPORT
21/08/2018
4.0999999999999996
0
6.6
22.8
17.399999999999999
85
51
5.56
18.59
CARNARVON AIRPORT
22/08/2018
0
13.7
100
35
7
18.88
CARNARVON AIRPORT
23/08/2018
26
81
16
6.27
19.53
CARNARVON AIRPORT
24/08/2018
6.4
0
8.8000000000000007
27.5
6.9
73
12
5.01
19.66
CARNARVON AIRPORT
25/08/2018
5.6
0
27.7
7.9
91
14
4.03
19.850000000000001
CARNARVON AIRPORT
26/08/2018
3.9
0
23.9
10.9
93
41
3.59
18.899999999999999
CARNARVON AIRPORT
27/08/2018
4.3
0
24.9
9.6999999999999993
94
32
3.42
20.12
CARNARVON AIRPORT
28/08/2018
3.3
0
24.1
10.9
99
62
5.94
15.53
CARNARVON AIRPORT
29/08/2018
4
1
20.5
13.6
85
51
9.02
14.34
CARNARVON AIRPORT
30/08/2018
4.2
6
20.399999999999999
12.9
91
43
6.49
20.74
CARNARVON AIRPORT
31/08/2018
4.4000000000000004
0.2
23.8
12
96
37
4.6900000000000004
19.68
CARNARVON AIRPORT
01/09/2018
5.2
0
23.1
10.9
80
32
6.32
20.75
CARNARVON AIRPORT
02/09/2018
4.7
0
22.2
11.5
84
38
5.88
20.86
CARNARVON AIRPORT
03/09/2018
5
0
22
13.8
75
42
7.03
20.95
CARNARVON AIRPORT
04/09/2018
4.3
0
23.3
11.5
97
48
6.23
20.89
CARNARVON AIRPORT
05/09/2018
4.5
0
22.1
13.3
84
49
6.83
20.329999999999998
CARNARVON AIRPORT
06/09/2018
5.3
0
21.6
9.4
79
34
7.68
21.28
CARNARVON AIRPORT
07/09/2018
5.6
0
22.7
11.1
75
34
7.48
21.41
CARNARVON AIRPORT
08/09/2018
6.4
0
25.7
11.8
82
25
7.26
21.58
CARNARVON AIRPORT
09/09/2018
5.2
0
25.2
14.8
90
33
5.07
21.76
CARNARVON AIRPORT
10/09/2018
4.3
0
23.4
13.5
86
47
4.6100000000000003
20.79
CARNARVON AIRPORT
11/09/2018
5.2
0
23.6
13.3
91
42
8.09
21.71
CARNARVON AIRPORT
12/09/2018
6
0
22.9
11.8
80
29
8.18
22.01
CARNARVON AIRPORT
13/09/2018
5.8
0
24.1
13.2
83
38
8.51
22.18
CARNARVON AIRPORT
14/09/2018
6.3
0
24.4
13.1
78
35
8.99
22.29
CARNARVON AIRPORT
15/09/2018
8.1
0
29.6
11.8
79
12
6.83
22.42
CARNARVON AIRPORT
16/09/2018
5.6
0
25.2
11.8
93
28
5.65
22.61
CARNARVON AIRPORT
17/09/2018
6.4
0
24.4
22.7
14.5
75
35
10.84
22.72
CARNARVON AIRPORT
18/09/2018
6.9
0
10.4
24.1
12
77
26
9.6199999999999992
22.78
CARNARVON AIRPORT
19/09/2018
7.9
0
27.7
12.4
82
12
7.49
22.97
CARNARVON AIRPORT
20/09/2018
8.5
0
32.799999999999997
9.4
84
7
5.41
23.1
CARNARVON AIRPORT
21/09/2018
7
0
11.2
31.1
11
69
7
3.8
23.23
CARNARVON AIRPORT
22/09/2018
7
0
33.4
9.3000000000000007
92
11
3.59
23.44
CARNARVON AIRPORT
23/09/2018
5.3
0
26
12.6
99
38
5.34
23.79
CARNARVON AIRPORT
24/09/2018
6.8
0
28.3
14.6
96
25
6.61
23.96
CARNARVON AIRPORT
25/09/2018
5.2
0
25.2
16.100000000000001
89
53
7.66
24.03
CARNARVON AIRPORT
26/09/2018
6.7
0
7.4
26.4
17.2
83
37
9.0500000000000007
24.15
CARNARVON AIRPORT
27/09/2018
6.7
0
26.5
16.399999999999999
81
39
8.92
24.25
CARNARVON AIRPORT
28/09/2018
6.7
0
28.4
18.399999999999999
89
32
6.58
24.44
CARNARVON AIRPORT
29/09/2018
4.5
0
25.1
19.5
86
60
7.01
18.04
CARNARVON AIRPORT
30/09/2018
4.8
4.2
24.4
17.2
91
56
5.86
23.79
CARNARVON AIRPORT
01/10/2018
5
0
22.6
24.9
14
96
50
6.61
23.98
CARNARVON AIRPORT
02/10/2018
4.5999999999999996
0
6.6
24.9
17
92
66
6.46
25.33
CARNARVON AIRPORT
03/10/2018
5
0
7.6
25.3
18.8
91
57
5.2
24.95
CARNARVON AIRPORT
04/10/2018
0
6.5
24.9
16.5
22.78
CARNARVON AIRPORT
05/10/2018
5.4
0
5.4
25.1
16.399999999999999
85
52
6.21
25.43
CARNARVON AIRPORT
06/10/2018
4.9000000000000004
0
24.2
14.1
90
54
5.63
25.63
CARNARVON AIRPORT
07/10/2018
5.4
0
25.2
17.7
84
54
6.44
25.75
CARNARVON AIRPORT
08/10/2018
5.5
0
25.4
18.2
83
57
7.48
25.73
CARNARVON AIRPORT
09/10/2018
5.3
0
7.6
25.3
18.600000000000001
86
58
7.03
25.3
CARNARVON AIRPORT
10/10/2018
5.4
0
24.5
17.5
82
45
5.58
23.05
CARNARVON AIRPORT
11/10/2018
5.7
0
25
16.8
71
49
5.42
25.38
CARNARVON AIRPORT
12/10/2018
5.2
0
25.1
15.4
83
54
4.66
26.17
CARNARVON AIRPORT
13/10/2018
4.7
0
27.3
17.2
90
67
6.66
22.96
CARNARVON AIRPORT
14/10/2018
6
0
24.8
19.2
80
46
7.23
25.02
CARNARVON AIRPORT
15/10/2018
6.9
0
25.3
14.6
77
32
7.35
26.91
CARNARVON AIRPORT
16/10/2018
7
0
28
15.7
87
31
6.51
27.05
CARNARVON AIRPORT
17/10/2018
5.5
0
7.6
26
19.5
87
59
6.59
27.07
CARNARVON AIRPORT
18/10/2018
6.2
0
24.9
19.399999999999999
83
46
8.1
26.36
CARNARVON AIRPORT
19/10/2018
6.9
0.2
11.6
24
15.8
72
38
8.92
27.29
CARNARVON AIRPORT
20/10/2018
6.5
0
25.3
15.4
81
43
8.58
27.47
CARNARVON AIRPORT
21/10/2018
6.4
0
25.1
17.899999999999999
79
48
9.01
26.55
CARNARVON AIRPORT
22/10/2018
6.5
0
28.8
25.6
17
79
48
8.93
27.66
CARNARVON AIRPORT
23/10/2018
6.3
0
9.4
24.9
16.5
80
48
8.69
27.8
CARNARVON AIRPORT
24/10/2018
5.5
0
24.1
17.7
77
53
8.5299999999999994
21.46
CARNARVON AIRPORT
25/10/2018
6.1
0
11
25.6
17
80
57
9.89
27.85
CARNARVON AIRPORT
26/10/2018
5.6
0
11.6
25.3
19.399999999999999
83
64
9.57
26.96
CARNARVON AIRPORT
27/10/2018
5.6
0
26.3
19.5
85
66
9.1
28.05
CARNARVON AIRPORT
28/10/2018
6.2
0
28
19.100000000000001
91
56
7.61
28.35
CARNARVON AIRPORT
29/10/2018
6.1
0
27
27.2
20.5
87
60
8.5399999999999991
28.47
CARNARVON AIRPORT
30/10/2018
6.1
0
26.6
19.399999999999999
84
60
9.44
27.75
CARNARVON AIRPORT
31/10/2018
5.5
0
24.9
19.2
82
61
7.88
25.46
CARNARVON AIRPORT
01/11/2018
5.3
0
10.4
24.5
18.8
78
52
8.27
17.73
CARNARVON AIRPORT
02/11/2018
5.7
0
23.8
17.5
78
49
7.27
23.65
CARNARVON AIRPORT
03/11/2018
5.8
0
25.4
18.600000000000001
80
57
7.8
25.63
CARNARVON AIRPORT
04/11/2018
6.4
0
24.6
18.100000000000001
77
52
9.18
28.26
CARNARVON AIRPORT
05/11/2018
7.2
0
26.4
26.5
17.600000000000001
80
43
9.66
29.07
CARNARVON AIRPORT
06/11/2018
8
0
25.7
15.1
74
33
11.09
29.16
CARNARVON AIRPORT
07/11/2018
10.7
0
32.1
14.9
72
10
9.01
25.46
CARNARVON AIRPORT
08/11/2018
5.6
0
11.2
25.7
18.7
86
54
7.18
24.18
CARNARVON AIRPORT
09/11/2018
5.0999999999999996
0
24.9
19.600000000000001
90
63
4.9400000000000004
26.8
CARNARVON AIRPORT
10/11/2018
4.4000000000000004
0
24.9
20.100000000000001
89
67
5.85
20.85
CARNARVON AIRPORT
11/11/2018
5.6
0
24.7
19.5
83
59
9.4700000000000006
24.25
CARNARVON AIRPORT
12/11/2018
7.2
0
25.4
28.1
17.8
81
47
8.7899999999999991
29.48
CARNARVON AIRPORT
13/11/2018
10
0
34.200000000000003
19
84
28
8.6199999999999992
29.82
CARNARVON AIRPORT
14/11/2018
11.5
0
40.799999999999997
20.6
79
13
5.85
29.87
CARNARVON AIRPORT
15/11/2018
6.7
0
10.8
31.1
18.100000000000001
94
40
3.95
28.49
CARNARVON AIRPORT
16/11/2018
5.6
0
10
27.4
20.8
95
67
4.75
29.7
CARNARVON AIRPORT
17/11/2018
6
0
27.8
19.7
91
61
6.05
30.07
CARNARVON AIRPORT
18/11/2018
7.3
0
27.8
19.8
90
39
7.89
30.1
CARNARVON AIRPORT
19/11/2018
8.6
0
28.6
19.5
81
37
11.33
30.14
CARNARVON AIRPORT
20/11/2018
9.4
0
30.1
16.5
75
29
10.130000000000001
29.39
CARNARVON AIRPORT
21/11/2018
10.199999999999999
0
35.700000000000003
17.7
83
10
6.61
24.97
CARNARVON AIRPORT
22/11/2018
6.1
7
25.6
20.100000000000001
84
53
7.76
26.99
CARNARVON AIRPORT
23/11/2018
7.5
0
10.6
26
18.8
70
44
9.15
29.59
CARNARVON AIRPORT
24/11/2018
8
0
26.4
16.899999999999999
76
32
9.14
30.42
CARNARVON AIRPORT
25/11/2018
6.8
0
25.1
18.100000000000001
78
48
9.26
29.4
CARNARVON AIRPORT
26/11/2018
7.7
0
29.8
25.9
17
75
36
9.01
30.5
CARNARVON AIRPORT
27/11/2018
6.1
0
11.4
25.5
18.3
82
59
7.89
30.17
CARNARVON AIRPORT
28/11/2018
6.3
0
25.9
19.3
81
60
9.26
30.17
CARNARVON AIRPORT
29/11/2018
6.4
0
11
25.7
19.2
80
59
10.34
30
CARNARVON AIRPORT
30/11/2018
6
0
25.8
19.3
82
63
10.56
27.66
CARNARVON AIRPORT
01/12/2018
8.6999999999999993
0
28.6
17.899999999999999
81
32
10.3
30.14
CARNARVON AIRPORT
02/12/2018
8
0
29.3
18.600000000000001
88
37
8.39
30.73
CARNARVON AIRPORT
03/12/2018
5.8
0
32.6
27
20.2
91
66
7.21
30.62
CARNARVON AIRPORT
04/12/2018
6.7
0
9.4
26.5
20
81
55
8.0299999999999994
30.73
CARNARVON AIRPORT
05/12/2018
6.5
0
25.4
18.399999999999999
81
54
8.69
30.75
CARNARVON AIRPORT
06/12/2018
6.8
0
27.9
18.8
100
47
9.7100000000000009
29.73
CARNARVON AIRPORT
07/12/2018
7.7
0
27.5
16.8
77
43
9.5500000000000007
30.82
CARNARVON AIRPORT
08/12/2018
7.7
0
28.1
19.2
84
43
9.65
30.88
CARNARVON AIRPORT
09/12/2018
6.8
0
27.5
19.899999999999999
84
57
9.99
30.82
CARNARVON AIRPORT
10/12/2018
5.7
0
29.4
26
19.5
87
66
9.64
29.35
CARNARVON AIRPORT
11/12/2018
6.5
0
14.4
26.3
18.600000000000001
81
59
9.9
30.87
CARNARVON AIRPORT
12/12/2018
8.1999999999999993
0
8.8000000000000007
28.6
17.2
82
40
10.42
30.85
CARNARVON AIRPORT
13/12/2018
6.6
0
13
28.5
19.8
88
60
8.06
31
CARNARVON AIRPORT
14/12/2018
5.4
0
9.4
26.7
20.8
92
70
8.01
28.89
CARNARVON AIRPORT
15/12/2018
6.1
0
25.8
20.8
81
52
9.1
22.12
CARNARVON AIRPORT
16/12/2018
6.7
0
26.2
20.100000000000001
82
48
9.6999999999999993
25.2
CARNARVON AIRPORT
17/12/2018
7.1
0.2
27.5
26.5
19.399999999999999
79
54
10.36
31.14
CARNARVON AIRPORT
18/12/2018
7.2
0
12.4
28.5
19.100000000000001
84
52
8.8800000000000008
31.23
CARNARVON AIRPORT
19/12/2018
9.6999999999999993
0
14.8
37.1
20.3
79
46
8.36
31.23
CARNARVON AIRPORT
20/12/2018
13.1
0
15
42.9
22.4
82
10
6.73
30.36
CARNARVON AIRPORT
21/12/2018
7.4
0
11.2
31.6
21.5
85
46
5.34
30.07
CARNARVON AIRPORT
22/12/2018
4.2
0
27.9
22.4
93
70
4.5599999999999996
18.72
CARNARVON AIRPORT
23/12/2018
8.1999999999999993
0
37.1
22.2
97
34
3.91
30.61
CARNARVON AIRPORT
24/12/2018
12.4
0
26.2
42.6
20.399999999999999
83
10
5.97
30.98
CARNARVON AIRPORT
25/12/2018
10.199999999999999
0
38.299999999999997
25.1
75
36
6.5
31.2
CARNARVON AIRPORT
26/12/2018
9.3000000000000007
0
34.4
25.2
73
40
6.78
30.99
CARNARVON AIRPORT
27/12/2018
10.7
0
34.200000000000003
24.8
68
33
9.18
30.96
CARNARVON AIRPORT
28/12/2018
9.5
0
13.8
31.3
21.2
79
37
10.93
30.77
CARNARVON AIRPORT
29/12/2018
9.3000000000000007
0
31
20.5
80
33
9.5500000000000007
30.86
CARNARVON AIRPORT
30/12/2018
7.2
0
28.6
20.100000000000001
85
53
9.27
30.8
CARNARVON AIRPORT
31/12/2018
9.9
0
32.1
21.2
82
27
9.27
30.64
Sheet3
CARNARVON AIRPORT
01/04/2018
6.5
0
30.3
21.9
83
45
7.44
22
CARNARVON AIRPORT
02/04/2018
5.8
0
34.200000000000003
22.4
87
50
4.4400000000000004
21.06
CARNARVON AIRPORT
03/04/2018
6.2
0
33.4
24.7
87
49
5.57
21.78
CARNARVON AIRPORT
04/04/2018
9.6
0
37.6
24.7
79
16
6.81
21.64
CARNARVON AIRPORT
05/04/2018
8.3000000000000007
0
7.2
35.200000000000003
23.7
75
24
6.28
21.41
CARNARVON AIRPORT
06/04/2018
7.1
0
11
33
22.5
80
33
5.98
21.22
CARNARVON AIRPORT
07/04/2018
6.6
0
30.8
24
81
45
7.62
20.48
CARNARVON AIRPORT
08/04/2018
5.3
0
28.1
21
84
57
7.45
20.93
CARNARVON AIRPORT
09/04/2018
6
0
23.6
28.7
21.2
81
50
7.97
20.8
CARNARVON AIRPORT
10/04/2018
7.5
0
28.9
20
78
31
9.19
20.399999999999999
CARNARVON AIRPORT
11/04/2018
7.4
0
28
16.2
74
30
9.31
20.420000000000002
CARNARVON AIRPORT
12/04/2018
7.8
0
10.4
28.5
17
75
22
8.57
20.27
CARNARVON AIRPORT
13/04/2018
6.8
0
10.6
28.5
17.600000000000001
77
36
8.39
20.3
CARNARVON AIRPORT
14/04/2018
7.3
0
31.1
16.600000000000001
80
18
6.01
19.96
CARNARVON AIRPORT
15/04/2018
7
0
35.6
18.600000000000001
83
11
4.3499999999999996
16.079999999999998
CARNARVON AIRPORT
16/04/2018
7.8
0
36
16.899999999999999
81
9
4.71
19.64
CARNARVON AIRPORT
17/04/2018
7.2
0
7
35.700000000000003
19.399999999999999
86
33
5.8
19.7
CARNARVON AIRPORT
18/04/2018
5.8
0
9.1999999999999993
28.3
21.2
80
45
7.07
19.37
CARNARVON AIRPORT
19/04/2018
4.8
0
26.4
18.5
83
52
5.88
19.510000000000002
CARNARVON AIRPORT
20/04/2018
5.6
0
7.6
30.2
18.5
82
32
5.09
15.99
CARNARVON AIRPORT
21/04/2018
4.5999999999999996
0
27.6
15.2
92
36
4.0999999999999996
18.399999999999999
CARNARVON AIRPORT
22/04/2018
6.7
0
34.6
20.100000000000001
86
18
5
14.21
CARNARVON AIRPORT
23/04/2018
5
0
27.4
20.3
84
52
6.58
18.670000000000002
CARNARVON AIRPORT
24/04/2018
4.8
0
25.8
18.7
79
50
7.2
14.69
CARNARVON AIRPORT
25/04/2018
4.8
0
11.8
25.8
19.5
81
48
6.91
15.06
CARNARVON AIRPORT
26/04/2018
4.5
0
5.6
26.5
17.7
87
48
5.36
18.57
CARNARVON AIRPORT
27/04/2018
5.0999999999999996
0
5
27.4
19.7
87
44
6.39
18.329999999999998
CARNARVON AIRPORT
28/04/2018
4.8
0
28.1
16.2
89
40
4.88
18.43
CARNARVON AIRPORT
29/04/2018
0
14.2
98
29
3.81
18.38
CARNARVON AIRPORT
30/04/2018
18.16/nConsider the design of a deep open drainage ditch to lower the groundwater below an urban area where a minimum clearance of 1m between urban foundations and the water table is needed.
· The urban area is in Perth in Western Australia.
· The land surface is flat, and the drains will run parallel to each other before discharging offsite.
· The soil is sand with a Ksat of 500 cm/day. Other soil parameters can be taken from Laio et al (2001).
Your task is to design the depth and spacing of the drainage ditches to protect the foundations of the houses. The urban area will be newly built and, at least at first, there will be only grass growing in the area between the houses. Home-owners will irrigate their grassed areas following existing regulations (e.g. 2 times a week, except in the June-August period when irrigation is banned).
In accordance with local planning laws, each block will have a maximum of 60% impermeable surfaces, with the remaining 40% being permeable surfaces. Water collected on the house roofs and paths etc. will be infiltrated into the soil and will add to the infiltration volume.
Your design should be based on a single year's rainfall and potential evaporation data (like in Guided Design 2 - you can re-use the data from that design if you like).
You will need to use a water balance for the unsaturated zone (e.g. over the grassed areas) to estimate the recharge, enabling you to design the drainage system.
Your design should specify:
· The spacing of the drains
· The depth of the drains
· The resulting water table elevation
· All assumptions made to generate the parameters for the equation
You can assume that:
· Having estimated the recharge below the grass on daily timescales, you can average these numbers in space (to account for the impermeable areas) and time (over all days) to obtain an estimated steady state recharge value.
· The drains can be designed for steady state conditions
You will need to provide model data showing the performance of your drains and in particular damanetrating that the water table elevation is acceptable.
For your exam you should submit:
(i) A problem appraisal (~1 page, including figures, 20%).
(ii) A mathematical framework (~1 page, including figures, 20%).
(iii) A design strategy and its results (~1 page, including figures, 20%).
(iv) A recommended design (~1 page, including figures, 20%).
Guidance for what should go into these sections is given next. A detailed rubric is presented at the end of the document - please make sure you read it.
NOTE: If you cannot make the problem "work", outline what you WOULD do to complete the design if you got past the sticking point. A good strategy with clear steps will get you a long way there.
(i) A problem appraisal.
Outline:
· The design criteria
· Environmental variables that can't be changed
· Design variables that can be controlled
· How the unsaturated water balance and the saturated zone water balance interact with each other.
· Any other constraints on the design?
Include words and any sketches/drawings needed to define the problem.
(ii) Mathematical framework
Describe the framework you will use to make a simple model of your urban area. This section should not include any derivations from a Control Volume (these are not needed).
You are welcome to re-use the model from GD2. It may need modification. Therefore, this section should include:
· Diagram(s) that you used to analyse flow of water into the soil, to the groundwater, and then into the drain.
· Any simplifying assumptions that you will make. You should make enough simplifications that you can use the tools you have from class and the GDs.
The governing equations you will use, including a definition of all terms, their values and units.
· How you will solve the equations. Assuming you will do this by modifying the GD2 spreadsheet, explain those modifications. If you use a different approach, please explain that approach.
(iii) Explain and present results from a design strategy.
This section should explain how the mathematical framework you defined above is used to test different designs and come up with your garden dimensions, soil depth and plant properties.
The strategy should clearly explain how you use the output from the model to check the rain garden performance.
Results demonstrating the performance of your recommended design should be presented here.
(iv) Recommended design
This 1-page max section should show your recommended design. It should contain a drawing or drawings, and all important information needed to implement the design.
