Results 311 to 320 of about 92,633 (340)

Intensifying hydrologic drought in California

2022
<p>Drought has struck the southwest U.S. for the fourth time this millennium, reducing freshwater available to agriculture and urban centers.  We are bringing new insight by quantifying change in water in the ground using GPS elastic displacements, GRACE gravity, artificial reservoir levels, and snow models.
Donald Argus, Hilary Martens, Adrian Borsa, David Wiese, Ellen Knappe, Stacy Larochelle, Mackenzie Anderson, Athina Peidou, Ashlesha Khatiwada, Nicholas Lau, Alissa White, Zachary Hoylman, Matthew Swarr, Qian Cao, Ming Pan, Kristel Chanard, Jean-Philippe Avouac, Gardner Payton, Felix Landerer   +18 more
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Hydrological identification of drought

Hydrological Processes, 1993
AbstractThe problem of drought identification is considered from a primarily hydrological viewpoint. The problems related to the definition, identification and prediction of drought have not yet been solved. Although rainfall data are analysed as the main indicator and characteristic of drought, other characteristics resulting from a rainfall deficit ...
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Hydrologic Drought Atlas for Texas

Journal of Hydrologic Engineering, 2015
AbstractThis paper presents a hydrologic drought atlas for the state of Texas. The atlas depicts the spatial variation of drought severity for durations of 3, 6, 12, and 24 months corresponding to the return periods of 10, 25, 50, and 100 years.
Deepthi Rajsekhar, Vijay P. Singh, Ashok K. Mishra   +2 more
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Analysis Methods for Hydrological Drought

2023
According to the World Meteorological Organization, the total economic impact of drought in Europe in the past 30 years was close to €100 billion. A recent publication by the European Environment Agency states that meteorological and hydrological droughts have become more frequent and severe in most of Europe, “being the highest in southern Europe ...
Carmen Maftei, Gabriel Dobrica, Alina Barbulescu, Cristina Serban   +3 more
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Drought Definition: A Hydrological Perspective

2000
This paper summarises different techniques for defining a drought. Hydrologists as distinct from economists or social scientists define drought according to water deficits in some component of the hydrological cycle (precipitation, soil moisture, river flow and groundwater) or the impact on the level of service provided to public water supply ...
E. L. Tate, A. Gustard
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Analysis of Hydrological Drought

2012
This chapter, entitled Analysis of hydrological drought is the first part of a self author’s work. It deals with a comprehensive analysis of hydrological drought. This chapter is divided into several subchapters. The first deals with the analysis of hydrological drought in the rivers profiles in Slovakia.
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Socio-hydrological modelling to manage and mitigate hydrological droughts

2021
<p>Managing water-human systems in times of water shortage and droughts is key to avoid overexploitation and reduce drought impacts. Drought policies are designed to structure water management response and avoid crisis management, aiming to sustain both environmental and anthropogenic water demand.
Doris E Wendt, John P Bloomfield, Anne F Van Loon, Joshua R Larsen, David M Hannah   +4 more
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Probabilistic characterization of hydrological droughts

Russian Meteorology and Hydrology, 2013
It is proposed to use the joint distribution of probabilities of minimum water discharges and the river runoff depth to characterize the severity and danger of durable low-flow periods. The copula theory is used to construct this distribution that enables to take account of differences in the types of one-dimensional probability distributions of ...
L. S. Kuchment, V. N. Demidov
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Hydrological Drought Occurrence in Slovakia

2018
The chapter presents the problem of drought and describes its classification and methods of assessing this risk. The aim of this chapter is to identify statistically significant trends in streamflow characteristics of low water content in the Eastern Slovakia, which are used in the evaluation of hydrological drought.
M. Zeleňáková, T. Soľáková, P. Purcz, D. Simonová   +3 more
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Causality-based drought propagation analyses among meteorological drought, hydrologic drought, and water shortage

Science of The Total Environment, 2023
Droughts propagate through the hydrologic cycle, leading to water deficiencies in various hydro-climate variables, such as rainfall, streamflow, soil moisture, and/or groundwater. Understanding drought propagation characteristics is an essential issue in water resources planning and management.
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