Evapotranspiración real para aguaymanto (mm/mes)(Método de Hargreaves)

Proyecto: Latitud: 09°40.3' SLongitud: 77°10.2' WAltitud: 3600 msnm

Descripción de variables Ene Feb Mar Abr May Jun Jul Ago Set Oct Nov DicT (°C) 10.3 9.0 9.7 12.3 12.7 12.4 11.7 11.7 11.9 13.8 11.2 11.7TMF (°F) 50.6 48.2 49.5 54.1 54.9 54.3 53.0 53.0 53.4 56.9 52.2 53.1MF (Valor tabular) 2.6 2.3 2.4 2.0 1.9 1.7 1.8 2.0 2.2 2.5 2.5 2.6%HR 59.0 51.3 55.7 70.2 72.7 71.0 66.8 66.8 68.0 79.1 64.2 67.0

1.00 1.00 1.00 0.91 0.87 0.89 0.96 0.96 0.94 0.76 0.99 0.95CE = 1+ 0.04(Z/2000) 1.07 1.07 1.07 1.07 1.07 1.07 1.07 1.07 1.07 1.07 1.07 1.07ETP = MF*TMF*CH*CE (mm/mes) 138.7 116.7 125.2 107.7 95.6 88.1 97.9 109.3 118.0 113.9 137.0 139.2

Descripción Ene Feb Mar Abr May Jun Jul Ago Set Oct Nov Dic0.85 0.85 0.85 0.90 0.95 1.00 1.00 0.95 0.90 0.85 0.85 0.85

Area aguaymanto (has) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.00.30 0.52 0.75 0.80 0.90 0.90 0.80 0.75

Area quinua (has) 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.00.60 0.70 0.90 1.10 1.15 1.15 1.10 1.10 1.00 0.90 0.70 0.60

Area alfalfa (has) 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.00.60 0.40 0.80 0.90 0.70 0.60 0.40 0.80 0.90 0.70

Area arveja (has) 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.00.49 0.60 0.70 0.89 0.98 0.92 0.84 0.90 0.43 0.51 0.48 0.39

Si HR > 64%, CH = 0.166(100-HR)1/2

Kc ponderado de los cultivos (mm/mes)

Kc aguaymanto

Kc quinua

Kc alfalfa (hás)

Kc arveja

Kc ponderado

Caudal de demanda

Descripción Ene Feb Mar Abr May Jun Jul Ago Set Oct Nov Dic

Evapotranspiración potencial (mm), ETP 138.7 116.7 125.2 107.7 95.6 88.1 97.9 109.3 118.0 113.9 137.0 139.2

0.49 0.60 0.70 0.89 0.98 0.92 0.84 0.90 0.43 0.51 0.48 0.39

Uso consuntivo, UC (mm) 67.3 70.5 87.5 96.0 93.3 81.1 82.0 98.5 50.7 58.2 65.6 54.7

Precipitación efectiva 75 % de persistencia (mm), Pe 73.8 83.4 90.3 54.8 7.5 3.6 0.0 5.1 24.6 54.2 52.1 49.3

Requerimiento neto de agua, Rw = UC - Pe (mm) 0.00 0.00 0.00 41.22 85.76 77.50 82.01 93.46 26.09 4.00 13.51 5.42

0.0 0.0 0.0 412.2 857.6 775.0 820.1 934.6 260.9 40.0 135.1 54.2

Eficiencia de riego, Er 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32

0.0 0.0 0.0 1288.2 2680.0 2421.8 2562.8 2920.5 815.4 125.0 422.0 169.4

Horas de riego por día, J 24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0

Módulo de riego (L/s/ha), MR 0.000 0.000 0.000 0.497 1.001 0.934 0.957 1.090 0.315 0.047 0.163 0.063

Area total de la parcela, hás 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0

Caudal de demanda (l/s) 0.00 0.00 0.00 24.85 50.03 46.72 47.84 54.52 15.73 2.33 8.14 3.16

0.000 0.000 0.000 0.025 0.050 0.047 0.048 0.055 0.016 0.002 0.008 0.003

Coeficiente de cultivo ponderado, Kc

Requerimiento de agua en volumen (m3/há), Rnw

Requerimiento bruto de agua (m3/ha), Rbw = Rnw/Er

Caudal de demanda (m3/s)

Precipitaciones Totales Mensuales (mm)

Estación Chavín

Latitud: 09°35'S Longitud: 77°10.5'S Altitud: 3210 msnm

Año Ene Feb Mar Abr May Jun Jul Ago Set Oct Nov Dic

1980 107.7 160.8 165.6 57.9 2.4 1.0 7.3 20.4 0.0 168.1 246.0 135.2

1981 58.4 234.0 193.9 135.6 0.0 0.0 0.0 8.3 13.3 72.2 264.3 223.6

1982 46.2 193.6 150.0 62.9 0.2 8.2 0.2 8.8 50.4 155.6 219.7 210.8

1983 102.0 164.1 153.1 46.2 18.2 3.4 6.7 23.2 43.1 90.5 59.4 141.2

1984 128.4 180.2 108.6 130.9 32.9 31.9 9.7 4.4 6.9 58.4 49.0 53.1

1985 130.4 87.5 226.9 145.6 109.4 15.2 95.6 26.9 50.2 42.1 73.9 27.5

1986 153.4 94.5 60.5 103.0 29.0 3.7 16.6 13.0 70.7 111.1 103.8 31.6

1987 121.1 90.9 63.0 56.3 9.8 10.8 17.0 16.2 45.0 38.7 94.5 85.9

1988 164.3 93.4 98.3 134.3 24.4 0.0 0.0 0.0 44.9 66.5 43.9 63.8

1989 79.4 103.5 118.6 66.1 18.8 20.3 3.7 18.3 55.8 96.2 48.4 28.7

1990 85.5 95.4 102.3 42.8 28.6 34.2 8.7 0.0 51.9 145.5 115.8 94.8

1991 107.5 88.3 188.2 44.8 23.3 4.1 2.8 0.0 31.9 75.5 83.0 44.0

1992 52.5 66.5 98.8 27.7 0.0 5.5 3.4 26.4 23.5 63.2 76.1 40.6

1993 120.9 140.7 184.5 124.9 21.1 7.9 11.0 13.9 69.5 86.6 160.9 183.1

1994 167.1 175.8 157.9 89.5 22.7 13.4 0.0 0.0 48.2 57.6 52.9 80.1

1995 112.2 98.5 152.0 75.5 53.1 22.0 1.0 0.0 35.7 87.7 75.5 142.2

1996 107.9 141.8 147.1 139.6 34.0 2.6 0.0 19.5 22.9 41.7 33.9 60.3

Media 108.5 130.0 139.4 87.3 25.2 10.8 10.8 11.7 39.1 85.7 105.9 96.9

D. std. 36.0 47.7 46.6 40.5 26.0 10.7 22.6 9.8 20.3 39.4 72.8 64.4

Datos completados y extendidos

Fuente: Good Neighbours Consultants. Diagnóstico y Evaluación del Recurso Hídrico. 2008. (1964 -1985)

SENAMHI (1986 - 1996)

PRECIPITACION TOTAL MENSUAL (mm)

Area de riego

Región: Ancash Altitud 3600 msnm

Provincia: Huari PMA 865.53 (mm)

Distrito: Chavín

Año Ene Feb Mar Abr May Jun Jul Ago Set Oct Nov Dic

1980 109.5 163.5 168.4 58.9 2.4 1.0 7.4 20.7 0.0 170.9 250.1 137.5

1981 59.4 237.9 197.2 137.9 0.0 0.0 0.0 8.4 13.5 73.4 268.7 227.4

1982 47.0 196.9 152.5 64.0 0.2 8.3 0.2 8.9 51.2 158.2 223.4 214.3

1983 103.7 166.9 155.7 47.0 18.5 3.5 6.8 23.6 43.8 92.0 60.4 143.6

1984 130.6 183.2 110.4 133.1 33.5 32.4 9.9 4.5 7.0 59.4 49.8 54.0

1985 132.6 89.0 230.7 148.1 111.2 15.5 97.2 27.4 51.0 42.8 75.1 28.0

1986 156.0 96.1 61.5 104.7 29.5 3.8 16.9 13.2 71.9 113.0 105.5 32.1

1987 123.1 92.4 64.1 57.2 10.0 11.0 17.3 16.5 45.8 39.4 96.1 87.3

1988 167.1 95.0 100.0 136.6 24.8 0.0 0.0 0.0 45.7 67.6 44.6 64.9

1989 80.7 105.2 120.6 67.2 19.1 20.6 3.8 18.6 56.7 97.8 49.2 29.2

1990 86.9 97.0 104.0 43.5 29.1 34.8 8.8 0.0 52.8 147.9 117.7 96.4

1991 109.3 89.8 191.4 45.6 23.7 4.2 2.8 0.0 32.4 76.8 84.4 44.7

1992 53.4 67.6 100.5 28.2 0.0 5.6 3.5 26.8 23.9 64.3 77.4 41.3

1993 122.9 143.1 187.6 127.0 21.5 8.0 11.2 14.1 70.7 88.1 163.6 186.2

1994 169.9 178.8 160.6 91.0 23.1 13.6 0.0 0.0 49.0 58.6 53.8 81.4

1995 114.1 100.2 154.6 76.8 54.0 22.4 1.0 0.0 36.3 89.2 76.8 144.6

1996 109.7 144.2 149.6 142.0 34.6 2.6 0.0 19.8 23.3 42.4 34.5 61.3

Media 110.4 132.2 141.7 88.7 25.6 11.0 11.0 11.9 39.7 87.2 107.7 98.5

Std 36.6 48.5 47.4 41.2 26.4 10.9 22.9 10.0 20.6 40.0 74.0 65.5

P 75% 85.5 99.2 109.5 60.7 7.6 3.6 0.0 5.1 25.7 60.0 57.4 53.9

P efectiva 75% 73.8 83.4 90.3 54.8 7.5 3.6 0.0 5.1 24.6 54.2 52.1 49.3