{
 "titulo": "Alturas históricas del río Paraná 1900–2026 — serie diaria de 22 escalas, Puerto Iguazú a San Fernando, y crecida de 1983 escala por escala",
 "generado": "2026-10-21T13:08:42-03:00",
 "periodo": "1900-01-02 / 2026-10-20",
 "fuente": "Prefectura Naval Argentina (escalas hidrométricas) e Instituto Nacional del Agua (INA), API pública alerta.ina.gob.ar",
 "pagina": "https://copernicus.com.ar/crecida-rio-parana-1983",
 "n_escalas": 22,
 "n_filas_alturas_diarias": 711374,
 "descarga_api": "https://alerta.ina.gob.ar/pub/datos/datos&timeStart=1983-05-01&timeEnd=1983-09-30&seriesId=<id_serie>&format=json",
 "cobertura_por_escala": {
  "9": {
   "escala": "Puerto Iguazú",
   "primer_dia": "1966-01-01",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 18886,
   "anios_con_dato": 52,
   "huecos_mayores_a_1_anio": [
    [
     "1967-01-01",
     "1975-12-31",
     3287
    ]
   ],
   "dias_marcados": 8,
   "mediana_por_decada": {
    "1960": 11.3,
    "1970": 11.37,
    "1980": 12.55,
    "1990": 14.4,
    "2000": 12.6,
    "2010": 13.8,
    "2020": 9.3
   }
  },
  "14": {
   "escala": "Posadas",
   "primer_dia": "1901-01-02",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 45586,
   "anios_con_dato": 126,
   "huecos_mayores_a_1_anio": [],
   "dias_marcados": 6,
   "mediana_por_decada": {
    "1900": 1.73,
    "1910": 1.2,
    "1920": 1.6,
    "1930": 1.46,
    "1940": 1.3,
    "1950": 1.3,
    "1960": 1.3,
    "1970": 1.66,
    "1980": 1.95,
    "1990": 2.98,
    "2000": 3.71,
    "2010": 10.19,
    "2020": 9.93
   }
  },
  "15": {
   "escala": "Ituzaingó",
   "primer_dia": "1910-03-16",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 41478,
   "anios_con_dato": 116,
   "huecos_mayores_a_1_anio": [
    [
     "1937-01-01",
     "1937-12-31",
     365
    ]
   ],
   "dias_marcados": 2,
   "mediana_por_decada": {
    "1910": 0.98,
    "1920": 1.38,
    "1930": 1.22,
    "1940": 1.21,
    "1950": 1.34,
    "1960": 1.36,
    "1970": 1.6,
    "1980": 1.75,
    "1990": 1.75,
    "2000": 1.8,
    "2010": 1.68,
    "2020": 1.0
   }
  },
  "19": {
   "escala": "Corrientes",
   "primer_dia": "1901-01-02",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 45901,
   "anios_con_dato": 126,
   "huecos_mayores_a_1_anio": [],
   "dias_marcados": 0,
   "mediana_por_decada": {
    "1900": 3.12,
    "1910": 2.72,
    "1920": 3.56,
    "1930": 3.12,
    "1940": 2.89,
    "1950": 3.06,
    "1960": 2.82,
    "1970": 3.52,
    "1980": 4.27,
    "1990": 4.28,
    "2000": 3.27,
    "2010": 3.81,
    "2020": 2.1
   }
  },
  "22": {
   "escala": "Bella Vista",
   "primer_dia": "1906-01-02",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 43022,
   "anios_con_dato": 120,
   "huecos_mayores_a_1_anio": [
    [
     "1994-01-01",
     "1994-12-31",
     365
    ]
   ],
   "dias_marcados": 2,
   "mediana_por_decada": {
    "1900": 2.98,
    "1910": 2.67,
    "1920": 3.39,
    "1930": 3.03,
    "1940": 2.94,
    "1950": 3.05,
    "1960": 2.57,
    "1970": 3.39,
    "1980": 3.99,
    "1990": 4.38,
    "2000": 3.28,
    "2010": 3.8,
    "2020": 2.2
   }
  },
  "23": {
   "escala": "Goya",
   "primer_dia": "1903-06-17",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 44516,
   "anios_con_dato": 124,
   "huecos_mayores_a_1_anio": [],
   "dias_marcados": 2,
   "mediana_por_decada": {
    "1900": 2.9,
    "1910": 2.58,
    "1920": 3.24,
    "1930": 3.02,
    "1940": 2.9,
    "1950": 3.2,
    "1960": 3.08,
    "1970": 3.64,
    "1980": 4.2,
    "1990": 4.32,
    "2000": 3.49,
    "2010": 3.98,
    "2020": 2.31
   }
  },
  "25": {
   "escala": "Esquina",
   "primer_dia": "1903-09-04",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 44253,
   "anios_con_dato": 124,
   "huecos_mayores_a_1_anio": [],
   "dias_marcados": 1,
   "mediana_por_decada": {
    "1900": 3.26,
    "1910": 2.84,
    "1920": 3.5,
    "1930": 3.06,
    "1940": 3.08,
    "1950": 3.23,
    "1960": 3.02,
    "1970": 3.7,
    "1980": 4.29,
    "1990": 4.2,
    "2000": 3.09,
    "2010": 3.68,
    "2020": 1.97
   }
  },
  "26": {
   "escala": "La Paz",
   "primer_dia": "1903-05-16",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 43584,
   "anios_con_dato": 121,
   "huecos_mayores_a_1_anio": [
    [
     "1909-01-01",
     "1911-12-31",
     1095
    ]
   ],
   "dias_marcados": 1,
   "mediana_por_decada": {
    "1900": 3.44,
    "1910": 2.84,
    "1920": 3.55,
    "1930": 3.29,
    "1940": 3.03,
    "1950": 3.24,
    "1960": 3.06,
    "1970": 3.92,
    "1980": 4.7,
    "1990": 4.83,
    "2000": 3.75,
    "2010": 4.29,
    "2020": 2.37
   }
  },
  "30": {
   "escala": "Santa Fe",
   "primer_dia": "1925-01-02",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 36971,
   "anios_con_dato": 102,
   "huecos_mayores_a_1_anio": [],
   "dias_marcados": 0,
   "mediana_por_decada": {
    "1920": 3.0,
    "1930": 3.16,
    "1940": 2.95,
    "1950": 3.05,
    "1960": 2.75,
    "1970": 3.43,
    "1980": 4.19,
    "1990": 4.22,
    "2000": 3.0,
    "2010": 3.53,
    "2020": 1.87
   }
  },
  "29": {
   "escala": "Paraná",
   "primer_dia": "1902-02-22",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 44971,
   "anios_con_dato": 125,
   "huecos_mayores_a_1_anio": [],
   "dias_marcados": 0,
   "mediana_por_decada": {
    "1900": 2.98,
    "1910": 2.18,
    "1920": 2.91,
    "1930": 2.6,
    "1940": 2.38,
    "1950": 2.5,
    "1960": 2.3,
    "1970": 2.95,
    "1980": 3.65,
    "1990": 3.76,
    "2000": 2.71,
    "2010": 3.27,
    "2020": 1.6
   }
  },
  "31": {
   "escala": "Diamante",
   "primer_dia": "1902-04-25",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 45309,
   "anios_con_dato": 125,
   "huecos_mayores_a_1_anio": [],
   "dias_marcados": 1,
   "mediana_por_decada": {
    "1900": 3.34,
    "1910": 2.6,
    "1920": 3.44,
    "1930": 3.23,
    "1940": 2.98,
    "1950": 2.93,
    "1960": 2.63,
    "1970": 3.38,
    "1980": 4.21,
    "1990": 4.19,
    "2000": 3.08,
    "2010": 3.76,
    "2020": 1.9
   }
  },
  "34": {
   "escala": "Rosario",
   "primer_dia": "1900-01-02",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 46159,
   "anios_con_dato": 127,
   "huecos_mayores_a_1_anio": [],
   "dias_marcados": 0,
   "mediana_por_decada": {
    "1900": 2.91,
    "1910": 2.2,
    "1920": 2.93,
    "1930": 2.62,
    "1940": 2.42,
    "1950": 2.44,
    "1960": 2.28,
    "1970": 3.06,
    "1980": 3.9,
    "1990": 3.97,
    "2000": 2.84,
    "2010": 3.41,
    "2020": 1.58
   }
  },
  "35": {
   "escala": "Villa Constitución",
   "primer_dia": "1974-01-01",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 16612,
   "anios_con_dato": 46,
   "huecos_mayores_a_1_anio": [
    [
     "1999-01-01",
     "2005-12-31",
     2557
    ]
   ],
   "dias_marcados": 1,
   "mediana_por_decada": {
    "1970": 2.79,
    "1980": 3.28,
    "1990": 3.49,
    "2000": 2.22,
    "2010": 2.94,
    "2020": 1.4
   }
  },
  "36": {
   "escala": "San Nicolás",
   "primer_dia": "1904-01-02",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 44564,
   "anios_con_dato": 123,
   "huecos_mayores_a_1_anio": [],
   "dias_marcados": 0,
   "mediana_por_decada": {
    "1900": 2.36,
    "1910": 1.64,
    "1920": 2.34,
    "1930": 2.0,
    "1940": 1.86,
    "1950": 1.89,
    "1960": 1.77,
    "1970": 2.35,
    "1980": 2.99,
    "1990": 3.09,
    "2000": 2.13,
    "2010": 2.66,
    "2020": 1.2
   }
  },
  "37": {
   "escala": "Ramallo",
   "primer_dia": "1904-01-02",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 44067,
   "anios_con_dato": 122,
   "huecos_mayores_a_1_anio": [
    [
     "1925-01-01",
     "1925-12-31",
     365
    ]
   ],
   "dias_marcados": 1,
   "mediana_por_decada": {
    "1900": 2.12,
    "1910": 1.47,
    "1920": 2.18,
    "1930": 1.82,
    "1940": 1.73,
    "1950": 1.75,
    "1960": 1.6,
    "1970": 2.02,
    "1980": 2.62,
    "1990": 2.73,
    "2000": 1.95,
    "2010": 2.4,
    "2020": 0.95
   }
  },
  "38": {
   "escala": "San Pedro",
   "primer_dia": "1901-01-02",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 45601,
   "anios_con_dato": 126,
   "huecos_mayores_a_1_anio": [],
   "dias_marcados": 1,
   "mediana_por_decada": {
    "1900": 1.6,
    "1910": 1.22,
    "1920": 1.72,
    "1930": 1.52,
    "1940": 1.45,
    "1950": 1.45,
    "1960": 1.32,
    "1970": 1.64,
    "1980": 2.1,
    "1990": 2.14,
    "2000": 1.52,
    "2010": 1.96,
    "2020": 0.89
   }
  },
  "40": {
   "escala": "Zárate",
   "primer_dia": "1978-01-01",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 15077,
   "anios_con_dato": 43,
   "huecos_mayores_a_1_anio": [
    [
     "2000-01-01",
     "2005-12-31",
     2192
    ]
   ],
   "dias_marcados": 2,
   "mediana_por_decada": {
    "1970": 0.62,
    "1980": 0.9,
    "1990": 0.9,
    "2000": 0.65,
    "2010": 0.9,
    "2020": 0.65
   }
  },
  "41": {
   "escala": "Campana",
   "primer_dia": "1977-10-24",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 15356,
   "anios_con_dato": 48,
   "huecos_mayores_a_1_anio": [
    [
     "1981-01-01",
     "1982-12-31",
     730
    ]
   ],
   "dias_marcados": 0,
   "mediana_por_decada": {
    "1970": 0.4,
    "1980": 0.8,
    "1990": 1.0,
    "2000": 0.7,
    "2010": 0.7,
    "2020": 0.45
   }
  },
  "42": {
   "escala": "Escobar",
   "primer_dia": "2006-01-01",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 7230,
   "anios_con_dato": 21,
   "huecos_mayores_a_1_anio": [],
   "dias_marcados": 3,
   "mediana_por_decada": {
    "2000": 0.7,
    "2010": 0.8,
    "2020": 0.6
   }
  },
  "50": {
   "escala": "Dique Luján",
   "primer_dia": "2006-01-01",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 7458,
   "anios_con_dato": 21,
   "huecos_mayores_a_1_anio": [],
   "dias_marcados": 1,
   "mediana_por_decada": {
    "2000": 0.8,
    "2010": 1.0,
    "2020": 0.85
   }
  },
  "49": {
   "escala": "Tigre",
   "primer_dia": "2006-01-01",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 7469,
   "anios_con_dato": 21,
   "huecos_mayores_a_1_anio": [],
   "dias_marcados": 9,
   "mediana_por_decada": {
    "2000": 1.0,
    "2010": 1.1,
    "2020": 1.1
   }
  },
  "52": {
   "escala": "San Fernando",
   "primer_dia": "2006-01-01",
   "ultimo_dia": "2026-10-20",
   "dias_con_dato": 7304,
   "anios_con_dato": 21,
   "huecos_mayores_a_1_anio": [],
   "dias_marcados": 6,
   "mediana_por_decada": {
    "2000": 1.1,
    "2010": 1.06,
    "2020": 1.01
   }
  }
 },
 "picos_1983": [
  {
   "id_serie": 9,
   "escala": "Puerto Iguazú",
   "primer_anio": 1966,
   "anios": 52,
   "fecha_pico": "1983-07-13",
   "altura_pico": 39.29,
   "puesto": 2,
   "alerta": 25,
   "evac": 28,
   "record_altura": 40.0,
   "record_fecha": "1992-05-31",
   "record_anio": 1992,
   "segundo_altura": 39.29,
   "segundo_anio": 1983
  },
  {
   "id_serie": 14,
   "escala": "Posadas",
   "primer_anio": 1901,
   "anios": 126,
   "fecha_pico": "1983-07-12",
   "altura_pico": 7.09,
   "puesto": 20,
   "alerta": 11,
   "evac": 12,
   "record_altura": 10.72,
   "record_fecha": "2025-09-01",
   "record_anio": 2025,
   "segundo_altura": 10.68,
   "segundo_anio": 2014
  },
  {
   "id_serie": 15,
   "escala": "Ituzaingó",
   "primer_anio": 1910,
   "anios": 116,
   "fecha_pico": "1983-07-15",
   "altura_pico": 6.35,
   "puesto": 1,
   "alerta": 3.5,
   "evac": 4,
   "record_altura": 6.35,
   "record_fecha": "1983-07-15",
   "record_anio": 1983,
   "segundo_altura": 5.68,
   "segundo_anio": 1992
  },
  {
   "id_serie": 19,
   "escala": "Corrientes",
   "primer_anio": 1901,
   "anios": 126,
   "fecha_pico": "1983-07-18",
   "altura_pico": 9.02,
   "puesto": 1,
   "alerta": 6.5,
   "evac": 7,
   "record_altura": 9.02,
   "record_fecha": "1983-07-18",
   "record_anio": 1983,
   "segundo_altura": 8.64,
   "segundo_anio": 1992
  },
  {
   "id_serie": 22,
   "escala": "Bella Vista",
   "primer_anio": 1906,
   "anios": 120,
   "fecha_pico": "1983-06-25",
   "altura_pico": 7.22,
   "puesto": 3,
   "alerta": 6,
   "evac": 6.4,
   "record_altura": 7.41,
   "record_fecha": "1998-05-07",
   "record_anio": 1998,
   "segundo_altura": 7.35,
   "segundo_anio": 1992
  },
  {
   "id_serie": 23,
   "escala": "Goya",
   "primer_anio": 1903,
   "anios": 124,
   "fecha_pico": "1983-06-26",
   "altura_pico": 7.03,
   "puesto": 3,
   "alerta": 5.2,
   "evac": 5.7,
   "record_altura": 7.2,
   "record_fecha": "1992-06-13",
   "record_anio": 1992,
   "segundo_altura": 7.07,
   "segundo_anio": 1998
  },
  {
   "id_serie": 25,
   "escala": "Esquina",
   "primer_anio": 1903,
   "anios": 124,
   "fecha_pico": "1983-06-28",
   "altura_pico": 6.86,
   "puesto": 3,
   "alerta": 5,
   "evac": 5.4,
   "record_altura": 7.29,
   "record_fecha": "1992-06-16",
   "record_anio": 1992,
   "segundo_altura": 6.9,
   "segundo_anio": 1905
  },
  {
   "id_serie": 26,
   "escala": "La Paz",
   "primer_anio": 1903,
   "anios": 121,
   "fecha_pico": "1983-07-03",
   "altura_pico": 7.16,
   "puesto": 2,
   "alerta": 5.8,
   "evac": 6.15,
   "record_altura": 7.37,
   "record_fecha": "1992-06-19",
   "record_anio": 1992,
   "segundo_altura": 7.16,
   "segundo_anio": 1983
  },
  {
   "id_serie": 30,
   "escala": "Santa Fe",
   "primer_anio": 1925,
   "anios": 102,
   "fecha_pico": "1983-07-05",
   "altura_pico": 7.35,
   "puesto": 2,
   "alerta": 5.3,
   "evac": 5.7,
   "record_altura": 7.43,
   "record_fecha": "1992-06-22",
   "record_anio": 1992,
   "segundo_altura": 7.35,
   "segundo_anio": 1983
  },
  {
   "id_serie": 29,
   "escala": "Paraná",
   "primer_anio": 1902,
   "anios": 125,
   "fecha_pico": "1983-07-06",
   "altura_pico": 6.83,
   "puesto": 3,
   "alerta": 4.7,
   "evac": 5,
   "record_altura": 6.96,
   "record_fecha": "1905-06-15",
   "record_anio": 1905,
   "segundo_altura": 6.89,
   "segundo_anio": 1992
  },
  {
   "id_serie": 31,
   "escala": "Diamante",
   "primer_anio": 1902,
   "anios": 125,
   "fecha_pico": "1983-07-06",
   "altura_pico": 6.68,
   "puesto": 3,
   "alerta": 5.3,
   "evac": 5.5,
   "record_altura": 7.09,
   "record_fecha": "1905-06-16",
   "record_anio": 1905,
   "segundo_altura": 6.9,
   "segundo_anio": 1992
  },
  {
   "id_serie": 34,
   "escala": "Rosario",
   "primer_anio": 1900,
   "anios": 127,
   "fecha_pico": "1983-03-25",
   "altura_pico": 6.17,
   "puesto": 4,
   "alerta": 5,
   "evac": 5.25,
   "record_altura": 6.43,
   "record_fecha": "1998-05-15",
   "record_anio": 1998,
   "segundo_altura": 6.27,
   "segundo_anio": 1992
  },
  {
   "id_serie": 35,
   "escala": "Villa Constitución",
   "primer_anio": 1974,
   "anios": 46,
   "fecha_pico": "1983-07-07",
   "altura_pico": 6.18,
   "puesto": 2,
   "alerta": 4,
   "evac": 4.5,
   "record_altura": 6.43,
   "record_fecha": "1998-05-19",
   "record_anio": 1998,
   "segundo_altura": 6.18,
   "segundo_anio": 1983
  },
  {
   "id_serie": 36,
   "escala": "San Nicolás",
   "primer_anio": 1904,
   "anios": 123,
   "fecha_pico": "1983-07-13",
   "altura_pico": 6.06,
   "puesto": 3,
   "alerta": 4.2,
   "evac": 5,
   "record_altura": 6.23,
   "record_fecha": "1998-05-19",
   "record_anio": 1998,
   "segundo_altura": 6.08,
   "segundo_anio": 1992
  },
  {
   "id_serie": 37,
   "escala": "Ramallo",
   "primer_anio": 1904,
   "anios": 122,
   "fecha_pico": "1983-07-13",
   "altura_pico": 5.87,
   "puesto": 3,
   "alerta": 3.5,
   "evac": 4,
   "record_altura": 6.03,
   "record_fecha": "1998-05-20",
   "record_anio": 1998,
   "segundo_altura": 6.0,
   "segundo_anio": 1966
  },
  {
   "id_serie": 38,
   "escala": "San Pedro",
   "primer_anio": 1901,
   "anios": 126,
   "fecha_pico": "1983-07-13",
   "altura_pico": 5.72,
   "puesto": 1,
   "alerta": 3.4,
   "evac": 3.6,
   "record_altura": 5.72,
   "record_fecha": "1983-07-13",
   "record_anio": 1983,
   "segundo_altura": 5.52,
   "segundo_anio": 1998
  },
  {
   "id_serie": 40,
   "escala": "Zárate",
   "primer_anio": 1978,
   "anios": 43,
   "fecha_pico": "1983-08-09",
   "altura_pico": 3.3,
   "puesto": 1,
   "alerta": 2,
   "evac": 2.2,
   "record_altura": 3.3,
   "record_fecha": "1983-08-09",
   "record_anio": 1983,
   "segundo_altura": 2.95,
   "segundo_anio": 1998
  },
  {
   "id_serie": 41,
   "escala": "Campana",
   "primer_anio": 1977,
   "anios": 48,
   "fecha_pico": "1983-07-24",
   "altura_pico": 2.72,
   "puesto": 5,
   "alerta": 2.2,
   "evac": 2.45,
   "record_altura": 3.0,
   "record_fecha": "2000-05-17",
   "record_anio": 2000,
   "segundo_altura": 2.93,
   "segundo_anio": 1985
  },
  {
   "id_serie": 42,
   "escala": "Escobar",
   "primer_anio": 2006,
   "anios": 21,
   "fecha_pico": null,
   "altura_pico": null,
   "puesto": null,
   "alerta": 3,
   "evac": 3.5,
   "record_altura": 2.8,
   "record_fecha": "2023-12-19",
   "record_anio": 2023,
   "segundo_altura": 2.7,
   "segundo_anio": 2010
  },
  {
   "id_serie": 50,
   "escala": "Dique Luján",
   "primer_anio": 2006,
   "anios": 21,
   "fecha_pico": null,
   "altura_pico": null,
   "puesto": null,
   "alerta": 2.3,
   "evac": 2.8,
   "record_altura": 2.7,
   "record_fecha": "2014-11-03",
   "record_anio": 2014,
   "segundo_altura": 2.6,
   "segundo_anio": 2010
  },
  {
   "id_serie": 49,
   "escala": "Tigre",
   "primer_anio": 2006,
   "anios": 21,
   "fecha_pico": null,
   "altura_pico": null,
   "puesto": null,
   "alerta": 3.3,
   "evac": 3.8,
   "record_altura": 3.35,
   "record_fecha": "2010-09-02",
   "record_anio": 2010,
   "segundo_altura": 3.2,
   "segundo_anio": 2023
  },
  {
   "id_serie": 52,
   "escala": "San Fernando",
   "primer_anio": 2006,
   "anios": 21,
   "fecha_pico": null,
   "altura_pico": null,
   "puesto": null,
   "alerta": 3,
   "evac": 3.5,
   "record_altura": 3.2,
   "record_fecha": "2010-02-25",
   "record_anio": 2010,
   "segundo_altura": 2.9,
   "segundo_anio": 2009
  }
 ],
 "nota": "Alturas en metros sobre el cero de cada escala de Prefectura Naval Argentina, tal como las publica el INA. Media diaria de las lecturas del día. Los días dudosos se marcan en la columna 'marca' y se excluyen de los máximos; no se corrigen ni se borran. Algunas escalas cambiaron de emplazamiento o de cero a lo largo del siglo (ver mediana_por_decada): comparar alturas entre épocas lejanas solo dentro de la misma referencia."
}