DENIEZIO GOMES
Graduado em Engenharia Cartográfica e de Agrimensura, UFPI, 2016.
Graduado em Engenharia Cartográfica e de Agrimensura, UFPI, 2016.
Trabalho acadêmico apresentado ao curso de Engenharia Cartográfica e de Agrimensura da Universidade Federal do Piauí como requisito avaliativo da disciplina de Geodésia II, sob orientação do Msc. José Lincoln de Sousa Meneses.
DADOS:
DADOS:
Um vértice geodésico A tem coordenadas:
φA = 21°17’04,5477” S
λA = 68°51’36,3152” W
SISTEMA GEODÉSICO DE REFERÊNCIA
SAD-69
a = 6378160,000 m
b = 6356774,719 m
α = 1/298,25
e² = 0,006694542 e = 0,081820180
e’² = 0,006739661 e’ = 0,082095437
Coeficientes para o SAD-69:
A = 1,005052625
B = 0,005063232
C = 1,062811*10-05
D = 2,082190*10-08
E = 3,932949*10-11
F = 6,555341*10-14
MEMORIAL DE CÁLCULO
N = 10000000 – N’
N’ = I + II*p2+III*p4+A’6*p6
Cálculo de N
N = 10000000 – N’
N’ = I + II*p2+III*p4+A’6*p6
Determinação dos Coeficientes:
I = K0*B”
K0 = 0,9996
B” = A1*(B1 – C1 + D1 – E1 + F1 – G1)
A1 = a*(1-e2) = 6335461,141
B1 = A*(φ*π)/180° = 0,373363271
– C1 = - ½*Bsen2φ = - 0,001712588
+ D1 = + ¼*Csen6φ = + 2,647468*10-06
– E1 = - 1/6*Dsen8φ = - 2,745515*10-09
+ F1 = + 1/8*Esen8φ = + 8,302896*10-13
– G1 = - 1/10*Fsen10φ = - (-3,555501*10-15¬)
∑ = 0,371653328
B” = 6335461,141*0,371653328
B” = 2354595,218
I = 0,9996*2354595,218
I = 2353653,380 m
- Cálculo de p:
p = 0,0001*Δλ”
p = 0,0001*((69°-68°51’36,3152”)*3600) = 0,0001*503,6848”
p = 0,050368480
p2 = 0,002536984
p3 = 0,000127784
p4 = 0,000006436
p5 = 0,000000324
p6 = 0,000000016
p = 0,0001*((69°-68°51’36,3152”)*3600) = 0,0001*503,6848”
p = 0,050368480
p2 = 0,002536984
p3 = 0,000127784
p4 = 0,000006436
p5 = 0,000000324
p6 = 0,000000016
II*p2
II = ((Nsenφcosφcos3φ)/2)*K0*1008
N = 6380975,067 m
senφ = 0,363000741
cosφ = 0,931788850
(Nsenφcosφcos3φ)/2 = 2,536482*10-05
II = 2,536482*10-05*0,9996*1008
II = 2535,467537
II*p2 = 2535,467537*0,002536984
II*p2 = 6,432440009
III*p4
III = A2 * (5 – B2 + C2 + D2) * K0 * 1016
A2 = (sen41”*Nsenφcos3φ)/24 = 4,313533*10-17
– B2 = – tg2φ = - 0,1517767928
+ C2 = + 9e’2cos2φ = 0,052664210
+ D2 = + 4e’4cos4φ = 0,000136964
∑ = 4,901033246
III = 4,313533*10-17*4,901033246*0,9996*1016
III = 2,113241883
III*p4 = 2,113241883*0,000006436
III*p4 = 0,000013601
A’6*p6
A’6 = A3 * (61 – B3 + C3 + D3 – E3) * K0 * 1024
A3 = (sen61”Nsenφcos5φ)/720 = 2,934261*10-29
– B3 = - 58*tg2φ = - 8,802539814
+ C3 = + tg4φ = 0,02303350
+ D3 = + 270e’2cos2φ = 1,579926292
– E3 = - 330e’2sen2φ = - 0,293067059
∑ = 53,50735292
A’6 = 2,934261*10-29 * 53,50735292 * 0,9996 * 1024
A’6 = 0,001569418
A’6*p6 = 0,001569418 * 0,000000016
A’6*p6 = 0,000000000
N’ = I + II*p2+III*p4+A’6*p6
N’ = 2353653,380 + 6,432440009 + 0,000013601 + 0,000000000
N’ = 2353659,812 m
N = 10000000 – N’ = 10000000 – 2353659,812
N = 7646340,188 m
Cálculo de E.
E’ = IV*p + V*p3 + B’5*p5
Determinação dos Coeficientes:
IV*p
IV = (Ncosφsen1”) * K0 * 104
Ncosφsen1” = 5943343,134
IV = 5943343,134 * 0,9996 * 104
IV = 288141,4063
IV*p = 5943343,134 *288141,4063
IV*p = 14513,24466 m
V*p3
V = A4 * (1 – B4 + C4) * K0 * 1012
A4 = (sen31”Ncos3φ)/6 = 9,804217*10-11
– B4 = tg2φ = - 0,151767928
+ C4 = e’2cos2φ = 0,005851579
∑ = 0,854083651
V = 9,804217*10-11 * 0,854083651 * 0,9996 * 1012
V = 83,70272218
V*p3 = 83,70272218 * 0,000127784
V*p3 = 0,010695870
B’5*p5
B’5 = A5 * (5 – B5 + C5 + D5 – E5) * K0 * 1020
A5 = (sen51”Ncos5φ)/120 = 1,000386*10-22
– B5 = - 18tg2φ = - 2,731822701
+ C5 = + tg4φ = + 0,023033504
+ D5 = + 14e’2cos2φ = 0,081922104
– E5 = - 58e’2sen2φ = - 0,051508756
∑ = 2,321624151
B’5 = 1,000386*10-22 * 2,321624151 * 0,9996 * 1020
B’5 = 0,023215917
B’5*p5 = 0,0000000075
E’ = IV*p + V*p3 + B’5*p5
E’ = 14513,24466 + 0,010695870 + 0,0000000075
E’ = 14513,255 m
E = E’ + Cte (λA < MC)
E = 14513,255 + 500000,00
E = 514513,255 m