水文干旱指数DAS Krueng Aceh的分析(案例研究子DAS Krueg Jreue和子DAS Kreung Khee)

Attabari Aldin, H. Basri, S. Syahrul
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引用次数: 0

摘要

摘要[UNK]Luas Sub-DAS Krueng Jreue 23.218.06公顷和Sub-DAS Krueng Khee 9.599.66公顷。根据调查结果,该地区的植被覆盖率每年都在下降,以借方波动的高度为标志,导致雨季洪水和冬季干旱。本研究的目的是确定Krueng Jreue和Krueng Khee两个子DAS的水文干燥阈值,以及Krueng J reue和Krueng Kheee两个子DAS中的水文干燥指数。本研究采用威布尔排序法,确定阈值Q50和Q80,计算赤字和持续时间,然后确定水文干燥指数。Sub DAS Krueng Jreue的极限值为0.067 m3/s,Sub DAS Krueng Khee的极限值则为0.181 m3/s。2014年的赤字最高,为0.401立方米/秒,干旱期为7个月,2012年的赤字最大,为-0.715立方米/秒。2015年Krueng Jreue子流域的水文干燥指数最高,为0.0629 m3/s,2011年Krueg Khee子流域的水力干燥指数最高为0.3282 m3/s。Krueng Aceh水文干旱指数分析[UNK](以Krueg Jreue和Krueng Khee子分水岭为例)摘要。[UNK]Krueng Jreue子流域的面积为23218.06公顷,Krueng Khee子流域为9599.66公顷。根据研究结果,土地覆盖植被面积每年都在减少,这表现为流量波动值高,导致雨季洪水泛滥,旱季干旱。本研究的目的是确定Krueng Jreue子流域和Krueng Khee子流域的水文干旱阈值,以及Krueng J reue子分水岭和Kruen Khee子水域的水文干旱指数。本研究使用威布尔排序方法,确定Q50和Q80的阈值,计算赤字和持续时间,然后确定水文干旱指数值。Krueng Jreue子流域的阈值为0.067 m3/s,Krueng Khee子流域为0.181 m3/s。2014年,Krueng Jreue子流域的缺水量最高,为0.401 m3/s,干旱持续时间为7个月;2012年,Kreung Khee子流域的水量最高,为-0.715 m3/s,干旱时间为6个月。2015年,Krueng Jreue子流域的水文干旱指数最高,为0.0629 m3/s,2011年,Kreung Khee子流域的水利旱指数最高,值为0.3282 m3/s。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analisis Indeks Kekeringan Hidrologi DAS Krueng Aceh (Studi Kasus Sub DAS Krueng Jreue dan Sub DAS Krueng Khee)
Abstrak.  Luas Sub DAS Krueng Jreue 23.218,06 Ha dan Sub DAS Krueng Khee 9.599,66 Ha. Berdasarkan hasil kajian bahwa luas vegetasi tutupan lahan semakin berkurang setiap tahunnya dimana ditandai dengan tingginya nilai fluktuasi debit sehingga mengakibatkan banjir pada musim hujan dan kekeringan pada musim kemarau. Tujuan penelitian adalah untuk mengetahui nilai ambang batas kekeringan hidrologi di Sub DAS Krueng Jreue dan Sub DAS Krueng Khee dan indeks kekeringan hidrologi di Sub DAS Krueng Jreue dan Sub DAS Krueng Khee. Penelitian ini menggunakan metode ranking Weibull dimana ditentukan nilai ambang batas Q50 dan Q80, dihitung defisit dan durasi dan kemudian ditentukan nilai indeks kekeringan hidrologi. Nilai ambang batas Sub DAS Krueng Jreue adalah 0,067 m3/s dan Sub DAS Krueng Khee 0,181 m3/s. Defisit Sub DAS Krueng Jreue tahun 2014 adalah tertinggi dengan angka 0,401 m3/s dengan durasi kering tujuh bulan dan Sub DAS Krueng Khee tahun 2012 adalah tertinggi dengan angka -0,715 m3/s dengan durasi kering enam bulan. Indeks kekeringan hidrologi di Sub DAS Krueng Jreue tahun 2015 adalah tertinggi dengan nilai 0,0629 m3/s dan indeks kekeringan hidrologi di sub DAS Krueng Khee tahun 2011 adalah tertinggi dengan nilai 0,3282 m3/s.An Analysis of The Krueng Aceh’s Hydrological Drought Index  (A Case Study of The Sub Watershed Krueng Jreue and Krueng Khee)Abstract.  The area of the Krueng Jreue Sub-watershed is 23,218.06 Ha and the Krueng Khee Sub-watershed is 9,599.66 Ha. Based on the results of the study that the area of land cover vegetation decreases every year which is indicated by the high value of discharge fluctuations, resulting in flooding in the rainy season and drought in the dry season. The purpose of this study was to determine the threshold value for hydrological drought in the Krueng Jreue Sub-watershed and Krueng Khee Sub-watersheds and the hydrological drought index in the Krueng Jreue Sub-watershed and Krueng Khee Sub-watersheds. This study uses the Weibull ranking method where the threshold values for Q50 and Q80 are determined, the deficit and duration are calculated and then the hydrological drought index value is determined. The threshold value for the Krueng Jreue Sub-watershed is 0.067 m3/s and the Krueng Khee Sub-watershed is 0.181 m3/s. The Krueng Jreue Sub-watershed deficit in 2014 was the highest at 0.401 m3/s with a dry duration of seven months and the Krueng Khee Sub-watershed in 2012 was the highest at -0.715 m3/s with a dry duration of six months. The hydrological drought index in the Krueng Jreue Sub-watershed in 2015 was the highest with a value of 0.0629 m3/s and the hydrological drought index in the Krueng Khee Sub-watershed in 2011 was the highest with a value of 0.3282 m3/s. 
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