Annexure - IV
Recommendations specific to Chennai
Based on policy enumerated at Page 3, the following specific criteria are adopted for the maximum permissible height of structures in the Chennai area:
CALCULATION
OF BEAM HEIGHT
|
||||
|
Range in meters |
Beam
height w.r.t. MO Chennai Radar angle of elevation =0.5° Ht. of antenna = 41.3m.amsl in Meters amsl |
Tolerance
@ 5% |
Beam
height w.r.t. DWR Chennai Radar angle of elevation = 0° Ht. of antenna = 53.0
m.amsl In Meters amsl |
Tolerance
@ 5%
|
|
1000 |
50.08 |
52.58 |
53.06 |
55.71 |
|
2000 |
58.98 |
61.93 |
53.24 |
55.90 |
|
3000 |
68.00 |
71.40 |
53.53 |
56.21 |
|
4000 |
77.13 |
80.99 |
53.94 |
56.64 |
|
5000 |
86.38 |
90.70 |
54.47 |
57.19 |
|
6000 |
95.75 |
100.54 |
55.12 |
57.88 |
|
7000 |
105.24 |
110.50 |
55.88 |
58.67 |
|
8000 |
114.84 |
120.58 |
56.77 |
59.61 |
|
9000 |
124.57 |
130.80 |
57.77 |
60.66 |
|
10000 |
134.41 |
141.13 |
58.89 |
61.83 |
|
11000 |
144.37 |
151.59 |
60.12 |
63.13 |
|
12000 |
154.44 |
162.16 |
61.48 |
64.55 |
|
13000 |
164.64 |
172.87 |
62.95 |
66.10 |
|
14000 |
174.95 |
183.70 |
64.54 |
67.77 |
|
15000 |
185.38 |
194.65 |
66.25 |
69.56 |
|
16000 |
195.92 |
205.72 |
68.07 |
71.47 |
|
17000 |
206.59 |
216.92 |
70.01 |
73.51 |
|
18000 |
217.37 |
228.24 |
72.07 |
75.67 |
|
19000 |
228.27 |
239.68 |
74.25 |
77.96 |
|
20000 |
239.29 |
251.25 |
76.55 |
80.38 |
|
21000 |
250.42 |
262.94 |
78.96 |
82.91 |
|
22000 |
261.68 |
274.76 |
81.49 |
85.56 |
|
23000 |
273.05 |
286.70 |
84.14 |
88.35 |
|
24000 |
284.54 |
298.77 |
86.91 |
91.26 |
|
25000 |
296.14 |
310.95 |
89.79 |
94.28 |
|
26000 |
307.87 |
323.26 |
92.80 |
97.44 |
|
27000 |
319.71 |
335.70 |
95.92 |
100.72 |
|
28000 |
331.67 |
348.25 |
99.15 |
104.11 |
|
29000 |
343.75 |
360.94 |
102.51 |
107.64 |
|
30000 |
355.94 |
373.74 |
105.98 |
111.28 |
|
31000 |
368.25 |
386.66 |
109.57 |
115.05 |
|
32000 |
380.68 |
399.71 |
113.28 |
118.94 |
|
33000 |
393.23 |
412.89 |
117.11 |
122.97 |
|
34000 |
405.90 |
426.20 |
121.05 |
127.10 |
|
35000 |
418.68 |
439.61 |
125.12 |
131.38 |
|
36000 |
431.58 |
453.16 |
129.29 |
135.75 |
|
37000 |
444.60 |
466.83 |
133.59 |
140.27 |
|
38000 |
457.74 |
480.63 |
138.01 |
144.91 |
|
39000 |
470.99 |
494.54 |
142.54 |
149.67 |
|
40000 |
484.36 |
508.58 |
147.19 |
154.55 |
|
41000 |
497.85 |
522.74 |
151.96 |
159.56 |
|
42000 |
511.46 |
537.03 |
156.85 |
164.69 |
|
43000 |
525.19 |
551.45 |
161.85 |
169.94 |
|
44000 |
539.03 |
565.98 |
166.97 |
175.32 |
|
45000 |
552.99 |
580.64 |
172.21 |
180.82 |
|
46000 |
567.07 |
595.42 |
177.57 |
186.45 |
|
47000 |
581.27 |
610.33 |
183.04 |
192.19 |
|
48000 |
595.58 |
625.36 |
188.63 |
198.06 |
|
49000 |
610.01 |
640.51 |
194.34 |
204.06 |
|
50000 |
624.56 |
655.79 |
200.17 |
210.18 |