Drought Severity Assessment Based on Bivariate Probability Analysis

Vangelis, Harris; Spiliotis, Mike; Tsakiris, George

doi:10.1007/s11269-010-9704-y

Cited by 59 publications

(21 citation statements)

References 19 publications

(13 reference statements)

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“…Generally, the Penmann-Monteith equation is used to calculate PET; however, if required parameters are not available, it is recommended to use the Thornthwaite equation [36]. Suitability of the Thornthwaite equation has also been recommended in recent research works, e.g., [24,37]. Consequently, in the present research with limited data (only temperature), the Thornthwaite equation [38] was applied to calculate PET.…”

Section: Drought Identificationmentioning

confidence: 99%

Probabilistic Analysis of Drought Spatiotemporal Characteristics in the Beijing-Tianjin-Hebei Metropolitan Area in China

et al. 2015

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Abstract:The temporal and spatial characteristics of meteorological drought have been investigated to provide a framework of methodologies for the analysis of drought in the Beijing-Tianjin-Hebei metropolitan area (BTHMA) in China. Using the Reconnaissance Drought Index (RDI) as an indicator of drought severity, the characteristics of droughts have been examined. The Beijing-Tianjin-Hebei metropolitan area was divided into 253 grid-cells of 27 × 27km and monthly precipitation data for the period of 1960-2010 from 33 meteorological stations were used for global interpolation of precipitation using spatial co-ordinate data. Drought severity was assessed from the estimated gridded RDI values at multiple time scales. Firstly, the temporal and spatial characteristics of droughts were analyzed, and then drought severity-areal extent-frequency (SAF) annual curves were developed. The analysis indicated that the frequency of moderate and severe droughts was about 9.10% in the BTHMA. Using the SAF curves, the return period of selected severe drought events was assessed. The identification of the temporal and spatial characteristics of droughts in the BTHMA will be useful for the development of a drought preparedness plan in the region.

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Section: Drought Identificationmentioning

confidence: 99%

Probabilistic Analysis of Drought Spatiotemporal Characteristics in the Beijing-Tianjin-Hebei Metropolitan Area in China

et al. 2015

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“…This shows the limitations of this approach due to the use of total annual means as the normalization factor. The characteristics of natural drought conditions may not be similar to those of downstream low-flow conditions (Nalbantis and Tsakiris 2010;Vangelis et al 2010). Reservoir managers can manipulate streamflow fluctuation to avoid severe drought conditions by releasing small amounts of water to increase the low-flow indicator values.…”

Section: Correlations To High and Low Flow Indicatorsmentioning

confidence: 99%

Determining the Ecological Flow Regime for Existing Reservoir Operation

Suen

2010

Water Resour Manage

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Maintaining the natural variability of a river's flow regime is one of the most critical strategies sustaining the ecological integrity of aquatic ecosystems. This research seeks to determine the ecological flow regime for management of streamflow existing reservoirs. The ecological flow regime is a human-modified flow regime that captures the natural flow variability for maintaining the structure and the functional integrity of the aquatic ecosystems. The design procedure uses regionalization analysis, the ratio method, and linear regression analysis techniques with hydrologic indicators to simulate the altered flow variability caused by humanbased annual streamflow reduction. Because it is difficult for reservoir operators to achieve the strict standard of natural flow regime, a discontinuity ratio method is used to express the reservoir's expected effect on the change in hydrologic indicator values. The final product of the ecological flow regime analysis produces a target reservoir operation and management that will provide a flow regime necessary to sustain the integrity of aquatic ecosystems.

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“…Significant decrease of precipitation causes the disruption of natural ecosystems and trouble with water management [BĄK, KUBIAK-WÓJCICKA 2017]. Drought gives the impact on the decreasing of water level elevation in some reservoirs [VANGELIS et al 2011] which are managed by Perum Jasa Tirta I, East Java Province of Indonesia. One of the reservoirs that are decreasing of water level is Sutami reservoir on 2013.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of synthetic rainfall application with respect to the flow volume at upstream Brantas watershed, East Java Province of Indonesia

Limantara¹,

Harisuseno²,

Hapsari³

2017

Journal of Water and Land Development

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Indonesian Technical Implementation Unit (UPT) of Synthetic Rainfall has modified climate by generating synthetic rainfall from 9 th May until 4 th June 2013. This unit has cooperated with the Department of Technological Study and Application (BPPT) of Indonesia and Perum Jasa Tirta I and TNI AU Lanud Abdulrachman Saleh. This study intended to increase reservoirs water level in upstream Brantas watershed, one of them is Sutami reservoir. Successive grade evaluation of synthetic rainfall used the method of Double Ratio and Flow Discharge. The target area is upstream Brantas watershed that is represented by 12 rainfall stations and the control area is in the distance of ±30 km from the boundary of upstream Brantas watershed and is represented by 5 rainfall stations. Results show rainfall increasing by 152.05% according to the Double Ratio method and the increase of flow discharge from Sutami reservoir by 74.19% according to the Flow Discharge method.

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Drought Severity Assessment Based on Bivariate Probability Analysis

Cited by 59 publications

References 19 publications

Probabilistic Analysis of Drought Spatiotemporal Characteristics in the Beijing-Tianjin-Hebei Metropolitan Area in China

Probabilistic Analysis of Drought Spatiotemporal Characteristics in the Beijing-Tianjin-Hebei Metropolitan Area in China

Determining the Ecological Flow Regime for Existing Reservoir Operation

Evaluation of synthetic rainfall application with respect to the flow volume at upstream Brantas watershed, East Java Province of Indonesia

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