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Spatial and Time Variability of Drought Based on SPI and RDI with Various Time Scales

Published on Feb 1, 2018in Water Resources Management 2.99
· DOI :10.1007/s11269-017-1856-6
Abdelaaziz Merabti2
Estimated H-index: 2
('ENS Paris': École Normale Supérieure),
Diogo S. Martins6
Estimated H-index: 6
(University of Lisbon)
+ 1 AuthorsLuis S. Pereira51
Estimated H-index: 51
(University of Lisbon)
Cite
Abstract
The spatial and temporal variability of droughts were studied for the Northeast Algeria using SPI and RDI computed with monthly precipitation data from 123 rainfall stations and CFSR reanalysis monthly temperature data covering the period 1979–80 to 2013–14. The gridded temperature data was interpolated to all the locations having precipitation data, thus providing to compute SPI and RDI with the time scales of 3-, 6- and 12-month with the same observed rainfall data. Spatial and temporal patterns of droughts were obtained using Principal Component Analysis in S-Mode with Varimax rotation applied to both SPI and RDI. For all time scales of both indices, two principal components were retained identifying two sub-regions that are similar and coherent for all SPI and RDI time scales. Both components explained more than 70% and 74% of drought spatial variability of SPI and RDI, respectively. The identified sub-regions are similar and coherent for all SPI and RDI time scales. The Modified Mann-Kendall test was used to assess trends of the RPC scores, which have shown non-significant trends for decreasing drought occurrence and severity in both identified drought sub-regions and all time scales. Both indices have shown a coherent and similar behavior, however with RDI likely showing to identify more severe and moderate droughts in the southern and more arid sub-region which may be due to its ability to consider influences of global warming. Results for RDI are quite uniform relative to time scales and show smaller differences among the various climates when compared with SPI. Further assessments covering the NW and NE of Algeria using longer time series should be performed to better understand the behavior of both indices.
  • References (48)
  • Citations (3)
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References48
Newest
Published on Feb 1, 2018in Water Resources Management 2.99
Abdelaaziz Merabti2
Estimated H-index: 2
('ENS Paris': École Normale Supérieure),
Hind Meddi10
Estimated H-index: 10
('ENS Paris': École Normale Supérieure)
+ 1 AuthorsLuis S. Pereira51
Estimated H-index: 51
(Instituto Superior de Agronomia)
Drought and wetness events were studied in the Northeast Algeria with SPI and RDI. The study area includes a variety of climatic conditions, ranging from humid in the North, close to the Mediterranean Sea, to arid in the South, near the Sahara Desert. SPI only uses precipitation data while RDI uses a ratio between precipitation and potential evapotranspiration (PET). The latter was computed with the Thornthwaite equation, thus using temperature data only. Monthly precipitation data were obtained...
3 Citations Source Cite
Published on Sep 1, 2017in Water Resources Management 2.99
Muhammad Imran Khan4
Estimated H-index: 4
(NEAU: Northeast Agricultural University),
Dong Liu7
Estimated H-index: 7
(NEAU: Northeast Agricultural University)
+ 6 AuthorsChen Cheng1
Estimated H-index: 1
(NEAU: Northeast Agricultural University)
Effective drought prediction methods are essential for the mitigation of adverse effects of severe drought events. This study utilizes the Reconnaissance Drought Index, Standardized Precipitation Index and Standardized Precipitation Evapotranspiration Index to assess the occurrence of future drought events in the study area of the Heilongjiang province of China over a period of 2016–2099. The drought indices were computed from the meteorological data (temperature, precipitation) generated by the...
8 Citations Source Cite
Published on Aug 1, 2017in Water Resources Management 2.99
George Tsakiris20
Estimated H-index: 20
(NTUA: National Technical University of Athens)
The paper presents an overview of issues related to the estimation of drought severity, the vulnerability of affected systems towards the drought hazards, the assessment of system drought risk and the required preparedness planning against droughts. To face these recurrent and temporary phenomena, a proactive approach is promoted based on technocratic support, systematic organisational and institutional structure and active public participation. Special emphasis is given to the simple and practi...
10 Citations Source Cite
Published on Apr 1, 2017in Hydrology Research
Ayoub Zeroual2
Estimated H-index: 2
(Université du Québec),
Ali A. Assani14
Estimated H-index: 14
(Université du Québec),
Hind Meddi10
Estimated H-index: 10
Many studies have highlighted breaks in mean values of temperature and precipitation time series since the 1970s. Given that temperatures have continued to increase following that decade, the first question addressed in this study is whether other breaks in mean values have occurred since that time. The second question is to determine which climate indices influence temperature and rainfall in the coastal region of Northern Algeria. To address these two questions, we analyzed the temporal variab...
9 Citations Source Cite
Published on Dec 1, 2016in Natural Hazards 2.32
Manish Kumar Goyal19
Estimated H-index: 19
(IITs: Indian Institutes of Technology),
Ashutosh Sharma3
Estimated H-index: 3
(IITs: Indian Institutes of Technology)
Drought is a frequently occurring natural hazard in many parts of the world and affects economy, environment and human lives. In India, the western states are severely affected by droughts. Global warming and climate change is causing more frequent and intense droughts in the region. In the present study, meteorological drought is studied using standardized precipitation index for four different timescales of 1, 3, 6 and 12 months. Drought homogeneous regions are identified over 81 stations in t...
4 Citations Source Cite
Published on Dec 1, 2016in Water Resources Management 2.99
George Tsakiris20
Estimated H-index: 20
(NTUA: National Technical University of Athens),
Nikos Kordalis1
Estimated H-index: 1
(NTUA: National Technical University of Athens)
+ 2 AuthorsHarris Vangelis10
Estimated H-index: 10
(NTUA: National Technical University of Athens)
Droughts can be considered as multidimensional hazardous phenomena characterised by three attributes: severity, duration and areal extent. Conventionally, drought events are assessed for their severity, using drought indices such as SPI (Standardised Precipitation Index), RDI (Reconnaissance Drought Index), PDSI (Palmer Drought Severity Index) and many others. This approach may be extended to incorporate the modelling of an additional dimension, the duration or the areal extent. Since the margin...
12 Citations Source Cite
Published on Nov 1, 2016in Water Resources Management 2.99
Abdol Rassoul Zarei4
Estimated H-index: 4
,
Mohammad Mehdi Moghimi2
Estimated H-index: 2
,
Mohammad Reza Mahmoudi6
Estimated H-index: 6
Drought is the most damaging environmental phenomenon, especially in arid and semiarid regions where there are considerable issues in regard to water resources management. In this study, trend of changes in drought severity based on the application of Reconnaissance Drought Index (RDI) evaluated (from 1980 to 2010 at 16 synoptic stations). For assessment drought severity, using linear regression, Mann-Kendall and Spearman’s Rho tests at the 5 % significance level, the trends in different time se...
10 Citations Source Cite
Published on Sep 1, 2016in Water Resources Management 2.99
Abdol Rassoul Zarei4
Estimated H-index: 4
,
Mohammad Mehdi Moghimi2
Estimated H-index: 2
,
Mohammad Reza Mahmoudi6
Estimated H-index: 6
Drought is one of the main natural hazards affecting the economy and the environment of large areas. Droughts cause crop losses, urban water supply shortages, social alarm, degradation and desertification. In this study, the spatial characteristics of annual and seasonal drought were evaluated based on climate data from 16 synoptic stations during the period of 1980–2010 in south of Iran. To estimate the drought severity used modified Reconnaissance Drought Index (RDI) and to prepare maps, ArcGi...
24 Citations Source Cite
Published on Sep 1, 2015in Earth Science Informatics 1.52
Dimitris Tigkas9
Estimated H-index: 9
(NTUA: National Technical University of Athens),
Harris Vangelis10
Estimated H-index: 10
(NTUA: National Technical University of Athens),
George Tsakiris20
Estimated H-index: 20
(NTUA: National Technical University of Athens)
Drought is a complex phenomenon which can be characterised mainly by its severity, duration and areal extent. Among these three dimensions, drought severity is the key factor which can be used for drought analysis. Drought indices are typically used to assess drought severity in a meaningful way. DrinC (Drought Indices Calculator) is a software package which was developed for providing a simple, though adaptable interface for the calculation of drought indices. The paper aims at presenting the o...
47 Citations Source Cite
Published on Jul 1, 2015in Journal of Hydrology 4.41
Kai Xu3
Estimated H-index: 3
(THU: Tsinghua University),
Dawen Yang4
Estimated H-index: 4
(THU: Tsinghua University)
+ 3 AuthorsYan Shen1
Estimated H-index: 1
(CMA: China Meteorological Administration)
Summary Understanding the spatial and temporal variation of drought is essentially important in drought assessment. In most previous studies, drought event is usually identified in space and time separately, ignoring the nature of the dynamic processes. In order to better understand how drought changes have taken place in China during the past half-century, we carried out a comprehensive analysis of their spatio-temporal variation based on multiple drought indices from a climatic perspective. A ...
116 Citations Source Cite
Cited By3
Newest
Published on May 21, 2019
Safieh Javadinejad , David M. Hannah46
Estimated H-index: 46
+ 3 AuthorsFloris Boogaard
Both climate change and human activity are the important drivers that can change hydrological cycle routs and affect the features of hydrological drought in river basins. The current study selects the Zayandeh Rud river Basin as a case study region in which to evaluate the influences of climate alteration and human activity on meteorological and hydrological drought based on the Standardized Precipitation Index (SPI) and Standardized Runoff Index (SRI) on different time scales. The generated loc...
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Published on Jun 22, 2018in Atmosphere 2.05
Shouzheng Jiang1
Estimated H-index: 1
,
Ruixiang Yang1
Estimated H-index: 1
+ 2 AuthorsChuan Liang2
Estimated H-index: 2
Drought vulnerability characteristics and risk assessment form the basis of drought risk management. In this study, the standardized precipitation index (SPI) and drought damage rates (DDR) were combined to analyze drought vulnerability characteristics and drought risk in Southwest China (SC). The information distribution method was applied to estimate the probability density of the drought strength (DS) and the two-dimensional normal information diffusion method was used to construct the vulner...
1 Citations Source Cite
Published on Feb 1, 2018in Water Resources Management 2.99
Abdelaaziz Merabti2
Estimated H-index: 2
('ENS Paris': École Normale Supérieure),
Hind Meddi10
Estimated H-index: 10
('ENS Paris': École Normale Supérieure)
+ 1 AuthorsLuis S. Pereira51
Estimated H-index: 51
(Instituto Superior de Agronomia)
Drought and wetness events were studied in the Northeast Algeria with SPI and RDI. The study area includes a variety of climatic conditions, ranging from humid in the North, close to the Mediterranean Sea, to arid in the South, near the Sahara Desert. SPI only uses precipitation data while RDI uses a ratio between precipitation and potential evapotranspiration (PET). The latter was computed with the Thornthwaite equation, thus using temperature data only. Monthly precipitation data were obtained...
3 Citations Source Cite