Book Chapter10.1016/b978-0-12-822544-8.00004-4
Rainfall and droughts
Ashok Mishra,Ali O. Alnahit,Sourav Mukherjee +2 more
- 01 Jan 2022
pp 451-474
1
TL;DR: In this article , the importance of rainfall information in deriving commonly used drought indicators, such as Standardized Precipitation Index (SPI), SPEI, and Palmer Drought Severity Index (PDSI), is systematically highlighted.
read more
Abstract: Drought is an insidious, natural, and recurrent phenomenon initiated mainly by intense precipitation shortage and exacerbated by additional factors such as abnormal rise in temperature, variation in wind speed, and background aridity. As a result, precipitation is used as the most common variable to develop indicators or proxies to quantify drought. The precipitation information plays an important role in deriving commonly used drought indicators, such as Standardized Precipitation Index (SPI), Standardized Precipitation Evapotranspiration Index (SPEI), and Palmer Drought Severity Index (PDSI). This chapter systematically highlights the importance of rainfall in drought assessment. An overview of the role of rainfall in drought assessment and the most common precipitation-based drought indices is provided. The various challenges and limitations associated with quantifying the evolution of drought using these rainfall-based drought indices are emphasized. Finally, a case study is provided presenting a comparative analysis between SPI, SPEI, and PDSI (across different spatial scales) for two climate divisions located in Texas for a long-term historical (1960–2015) period.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
A generalized framework for quantifying and monitoring the severity of meteorological drought
Asad Ellahi,Rizwan Niaz,Mohammed Almazyad,Ijaz Hussain,Fuad S. Al-Duais,Afrah Yahya AL-Rezami +5 more
TL;DR: In this paper , the authors proposed a new framework for quantifying and monitoring the severity of meteorological drought, which consists of three phases, namely, the first phase uses K-component Gaussian Mixture Distribution (GMD) in the computation, the second phase is mainly based on the dissimilarity matrix-based clustering using C-index and Monte Carlo Feature-based Selection (MCFS) method.
References
The relationship of drought frequency and duration to time scales
Thomas B. McKee,Nolan J. Doesken,John Kleist +2 more
- 01 Jan 1993
TL;DR: The definition of drought has continually been a stumbling block for drought monitoring and analysis as mentioned in this paper, mainly related to the time period over which deficits accumulate and to the connection of the deficit in precipitation to deficits in usable water sources and the impacts that ensue.
A Multiscalar Drought Index Sensitive to Global Warming: The Standardized Precipitation Evapotranspiration Index
TL;DR: In this article, a new climatic drought index, the standardized precipitation evapotranspiration index (SPEI), is proposed, which combines multiscalar character with the capacity to include the effects of temperature variability on drought assessment.
A global overview of drought and heat-induced tree mortality reveals emerging climate change risks for forests
Craig D. Allen,Alison K. Macalady,Haroun Chenchouni,Dominique Bachelet,Nate G. McDowell,Michel Vennetier,Thomas Kitzberger,Andreas Rigling,David D. Breshears,Edward H. Hogg,Patrick Gonzalez,Rod Fensham,Zhen Zhang,Jorge Castro,N.A. Demidova,Jong Hwan Lim,Gillian Allard,Steven W. Running,Akkin Semerci,Neil S. Cobb +19 more
TL;DR: In this paper, the authors present the first global assessment of recent tree mortality attributed to drought and heat stress and identify key information gaps and scientific uncertainties that currently hinder our ability to predict tree mortality in response to climate change and emphasizes the need for a globally coordinated observation system.
7.2K
Investigating soil moisture-climate interactions in a changing climate: A review
Sonia I. Seneviratne,T. Corti,Edouard Davin,Martin Hirschi,Eric B. Jaeger,Irene Lehner,Boris Orlowsky,Adriaan J. Teuling +7 more
TL;DR: In this paper, the authors provide a synthesis of past research on the role of soil moisture for the climate system, based both on modelling and observational studies, focusing on soil moisture-temperature and soil moistureprecipitation feedbacks, and their possible modifications with climate change.
4.8K