Annual and daily changes of the Amazon river water level

亚马逊河水位的年和日变化

• 批准号: 11680089
• 负责人: HIDA Noboru
• 金额: $ 2.37万
• 依托单位: Akita University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11680089/
• 关键词: The Amazon river; River water level; Discharge; Manaus; Breves; Obidos; GIS; ANEEL; 水位流量曲線; DNAEE; バルゼア(Varzea); 水位; マナウス; オビドス; 一次回帰式; 相関係数

1. Armugl water level changes of the Amazon:The annual water level cycle of the Rio Negro reflects the rainfall characteristics, I.e., the wet and dry seasons in the drainage basin. The water level at Manaus normally reaches its peak in late June, and bottoms in late October. According to IBGE (1977, 1991), the water level begins to rise in early January, taking eight months to gradually approach its maximum, and then in late June it returns again to its lowest level within a period of four months.How high dose the annual maxima and minima reach? The data based on data from the Adinmistracao do Port de Manaus illustrates the 89 - year moving averages for the annual maxima and minima between 1903 and 1991.The Porto's data reveals that both the annual maximum and minimum varies from year to year. However, the maximum average annual water level is 27.70 m, and the standard deviation (σ) is 1.13, while the minimum average annual water level is 17.81 m, and the σ is 1.88 . The lowerσ for th … More e animal maximum water level as compared to the annual minimum water level can be understood by looking at the variation in the Porto's data as well. The difference between the maximum and the minimum water levels shows an average of 9.89 m (σ:1.89), I.e., about 10 m. The maximum spread between the two extremes is 14.13m (1909), and the minimum spread is 6.10 m (1969).2. Daily water level changes of the Amazon:Daily water level changes at Breves and Caxiuana, Amazon estuary show as follows:(1) As expected, the tidal cycles induce the water levels to rise and fall twice-a-day. Since Breves and Caciuana are situated almost on the equator, there is no appearance of diurnal inequality.(2) During the spring tides, associated wilh the full and new phases of the moon, the curves for water level changes almost coincide. However, they appear in a different pattern during the neap tides.(3) The variations between the high and low levels during the spring tides are 0.89m in April and 1.26m in November at Breves, and 0.20m in April and 0.27m in November at Caxiuana.(4) An irregular movement of water levels occurred around 17:00-18:00, in April owing to shipping disturbance.(5) There is a considerable time lag in the tides between Breves and Caciuana. The flood and ebb currents calculated from the time lag reach about 15km per hour. Less

1、亚马逊阿穆格尔水位变化：内格罗河年水位周期反映了流域的降雨特征，即雨季和旱季。马瑙斯的水位通常在六月下旬达到峰值，并在十月下旬见底。根据IBGE（1977，1991），水位从1月初开始上升，用8个月的时间逐渐接近最高水位，然后在6月下旬又回到4个月内的最低水位。每年的最高和最低剂量达到多少？基于马瑙斯港 Adinmistracao 数据的数据说明了 1903 年至 1991 年间年度最大值和最小值的 89 年移动平均值。波尔图的数据显示，年度最大值和最小值每年都有所变化。但年平均最高水位为27.70 m，标准差（σ）为1.13；年平均最低水位为17.81 m，标准差（σ）为1.88。通过查看波尔图数据的变化，也可以了解动物最高水位与年最低水位相比的较低σ。最高水位与最低水位之差平均为9.89 m（σ：1.89），即约10 m。两个极端之间的最大跨度为14.13m（1909），最小跨度为6.10m（1969）。2。亚马逊河日水位变化：亚马逊河口布雷韦斯和卡休阿纳的日水位变化如下：（1）正如预期的那样，潮汐循环导致水位每天上升和下降两次。由于布雷夫斯和卡丘阿纳几乎位于赤道上，因此不会出现昼夜不平等。(2)在大潮期间，与满月和新月相关的水位变化曲线几乎重合。 (3)布雷夫斯(Breves)大潮期间高低水位变化为4月0.89m和11月1.26m，卡休阿纳(Caxiuana)4月0.20m和11月0.27m。(4)由于航运干扰，4月17:00-18:00左右出现水位不规则运动。(5)有相当长的时间。滞后 在 Breves 和 Caciuana 之间的潮汐中。根据时滞推算的涨潮和落潮达到每小时15公里左右。较少的

项目成果

Kageyama, Yoichi: "Comparison of JERS-1 and Landsat TM data for estimating for water areas in the Amazon"Journal of Geography (Tokyo Geogrp. Society). 108・5. 552-561 (1999)

Kageyama, Yoichi：“用于估算亚马逊水域的 JERS-1 和 Landsat TM 数据的比较”地理杂志（东京地理学会）108・5（1999）。

Hiraoka, Mario: "Manejo tradicional de recursos naturales en el estuario del Rio Amazonas : Raphia Taedirera"Desarrollo sostenible en la Amazonia : mito o realidad, IFFA, ECUADOR. 133-198 (2001)

平冈，马里奥：“Manejo tradicional de recursos naturales en el Rio Amazonas : Raphia Taedirera”Desarrollo sostenible en la Amazonia : mito o realidad，IFFA，厄瓜多尔。

Hida, Noboru: "Annual water level change of the Rio Negro river, Brazil"Geog. Rev. Japan. 76(Forthcoming). (2003)

Hida, Noboru：“巴西里奥内格罗河的年度水位变化”Geog。

Mario Hiraoka: "Manejo tradicional de recursos naturales en el estuario del Rio Amazonas : Raphia Taedirera"Desarrollo sostenible en la Amazonia : mito o readidad, IFFA, ECUADOR. In Book. 133-198 (2001)

Mario Hiraoka：“Manejo tradicional de recursos naturees en el Rio Amazonas : Raphia Taedirera”Desarrollo sostenible en la Amazonia : mito o readidad，IFFA，厄瓜多尔。

Hida,Noboru, et al.: "River water level changes of the Amazon estuary : at Breves, Caxiuana and Abaetetuba"Intal.Sympo.Hydrol.and Geochem.Processe s: Manaus99 (Brazil). ABSTRACTS. 87 (1999)

Hida、Noboru 等人：“亚马逊河口的河流水位变化：在 Breves、Caxiuana 和 Abaetetuba”Intal.Sympo.Hydrol.and Geochem.Processes：Manaus99（巴西）。