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Spatio Temporal Analysis Of Droughts In Semi Arid Regions By Using Meteorological Drought Indices
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Book Synopsis Spatio-Temporal Analysis of Droughts in Semi-Arid Regions by Using Meteorological Drought Indices by : Alireza Shahabfar
Download or read book Spatio-Temporal Analysis of Droughts in Semi-Arid Regions by Using Meteorological Drought Indices written by Alireza Shahabfar and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The El Niño Phenomenon by : United Nations Environment Programme
Download or read book The El Niño Phenomenon written by United Nations Environment Programme and published by UN. This book was released on 1992 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: An examination of the effects of, and research into, the El Nino phenomenon. Originating in the Pacific region, El Nino effects a reversal in the direction of winds and ocean currents, and changes in ocean temperature between Indonesia and the Pacific coas
Book Synopsis Integrated Drought Management, Volume 1 by : Vijay P. Singh
Download or read book Integrated Drought Management, Volume 1 written by Vijay P. Singh and published by CRC Press. This book was released on 2023-09-12 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first volume of this comprehensive global perspective on Integrated Drought Management is focused on understanding drought, causes, and the assessment of drought impacts. It explains different types of drought: agricultural, meteorological, hydrological, and socioeconomic droughts, their indices and the impact of climate change on drought. The volume also examines spatiotemporal analysis of drought, variability and patterns, assessment, and drought evaluation. With numerous case studies from India, Mexico, Turkey, Brazil, US, and other countries, this volume serves as a valuable resource for all readers who want to advance their knowledge on drought and risk management. Features: Provides a global perspective on drought prediction and management and a synthesis of the recent state of knowledge. Covers a wide range of topics from essential concepts and advanced techniques for forecasting and modeling drought to societal impacts, consequences, and planning. Presents numerous case studies with different management approaches from different regions and countries. Addresses how climate change impacts drought, the increasing challenges associated with managing drought, decision making, and policy implications. Includes contributions from hundreds of experts around the world. Professionals, researchers, academics, and postgraduate students with knowledge in environmental sciences, ecology, agriculture, forestry, hydrology, water resources engineering, and earth sciences, as well as those interested in how climate change impacts drought management, will gain new insights from the experts featured in this two-volume handbook.
Book Synopsis Methods and Tools for Drought Analysis and Management by : Giuseppe Rossi
Download or read book Methods and Tools for Drought Analysis and Management written by Giuseppe Rossi and published by Springer Science & Business Media. This book was released on 2007-07-26 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Frequent drought events have recently occurred in different Mediterranean regions. These have highlighted a general inadequacy of the current strategies applied to mitigate negative impacts of such phenomenon. This book provides various methods of drought monitoring at different spatial scales, as well as innovative drought forecasting techniques based on stochastic approaches. Besides common drought indices (i.e. SPI), new agrometeorological indices are proposed.
Author :Sergio M. Vicente-Serrano Publisher :Springer Science & Business Media ISBN 13 :940071372X Total Pages :240 pages Book Rating :4.4/5 (7 download)
Book Synopsis Hydrological, Socioeconomic and Ecological Impacts of the North Atlantic Oscillation in the Mediterranean Region by : Sergio M. Vicente-Serrano
Download or read book Hydrological, Socioeconomic and Ecological Impacts of the North Atlantic Oscillation in the Mediterranean Region written by Sergio M. Vicente-Serrano and published by Springer Science & Business Media. This book was released on 2011-06-17 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mediterranean basin represents one of the most important “hot spots” of climate change in the world, with recent trends towards a hotter and drier climate being related to changes in atmospheric circulation patterns. Such changes can have significant impacts in the climate of this region but also on the natural environment and several socioeconomic activities. Among these patterns, the North Atlantic Oscillation (NAO) is one of the main forcing factors in the region with impact on extreme events such as droughts, severe precipitations or heat and cold waves, the availability of water resources, the ecological dynamics, the quality and quantity of crops, the migration and welfare of animal populations, the fisheries dynamics, the triggering of landslides and the air pollution and human health, among others. The aim of Hydrological, Socioeconomic and Ecological Impacts of the North Atlantic Oscillation in the Mediterranean Region, is to serve as an updated reference text that covers the wide range of evidences on the NAO impacts in the Mediterranean regions and from a multidisciplinary perspective. This volume constitutes a unique document to present the state of the art of the numerous studies undertaken on the hydrological, socioeconomic and ecological impact of the NAO, collecting the expertise of researchers from several complementary earth science fields (geography, hydrology, remote-sensing, climatology, agriculture, energy), but that have been lacking a common ground.
Book Synopsis Hydrological Drought by : Lena M. Tallaksen
Download or read book Hydrological Drought written by Lena M. Tallaksen and published by Gulf Professional Publishing. This book was released on 2004 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: The majority of the examples are taken from regions where the rivers run most of the year.
Book Synopsis Remote Sensing of Drought by : Brian D. Wardlow
Download or read book Remote Sensing of Drought written by Brian D. Wardlow and published by CRC Press. This book was released on 2012-04-24 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remote Sensing of Drought: Innovative Monitoring Approaches presents emerging remote sensing-based tools and techniques that can be applied to operational drought monitoring and early warning around the world. The first book to focus on remote sensing and drought monitoring, it brings together a wealth of information that has been scattered throughout the literature and across many disciplines. Featuring contributions by leading scientists, it assembles a cross-section of globally applicable techniques that are currently operational or have potential to be operational in the near future. The book explores a range of applications for monitoring four critical components of the hydrological cycle related to drought: vegetation health, evapotranspiration, soil moisture and groundwater, and precipitation. These applications use remotely sensed optical, thermal, microwave, radar, and gravity data from instruments such as AMSR-E, GOES, GRACE, MERIS, MODIS, and Landsat and implement several advanced modeling and data assimilation techniques. Examples show how to integrate this information into routine drought products. The book also examines the role of satellite remote sensing within traditional drought monitoring, as well as current challenges and future prospects. Improving drought monitoring is becoming increasingly important in addressing a wide range of societal issues, from food security and water scarcity to human health, ecosystem services, and energy production. This unique book surveys innovative remote sensing approaches to provide you with new perspectives on large-area drought monitoring and early warning.
Book Synopsis Monitoring and Predicting Agricultural Drought by : Vijendra K. Boken
Download or read book Monitoring and Predicting Agricultural Drought written by Vijendra K. Boken and published by Oxford University Press. This book was released on 2005-04-14 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: Basic concepts and drought analysis. Remote sensing. NOAA/AVHRR satellite data-based indices for monitoring agricultural droughts. The Americas. Europe, Russia, and the near east. Asia and Australia. International efforts and climate change.
Book Synopsis Spatio-temporal characterisation of drought: data analytics, modelling, tracking, impact and prediction by : Vitali Diaz Mercado
Download or read book Spatio-temporal characterisation of drought: data analytics, modelling, tracking, impact and prediction written by Vitali Diaz Mercado and published by CRC Press. This book was released on 2022-02-10 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies of drought have increased in light of new data availability and advances in spatio-temporal analysis. However, the following gaps still need to be filled: 1) methods to characterise drought that explicitly consider its spatio-temporal features, such as spatial extent (area) and pathway; 2) methods to monitor and predict drought that include the above-mentioned characteristics and 3) approaches for visualising and analysing drought characteristics to facilitate interpretation of its variation. This research aims to explore, analyse and propose improvements to the spatio-temporal characterisation of drought. Outcomes provide new perspectives towards better prediction. The following objectives were proposed. 1) Improve the methodology for characterising drought based on the phenomenon’s spatial features. 2) Develop a visual approach to analysing drought variations. 3) Develop a methodology for spatial drought tracking. 4) Explore machine learning (ML) techniques to predict crop-yield responses to drought. The four objectives were addressed and results are presented. Finally, a scope was formulated for integrating ML and the spatio-temporal analysis of drought. Proposed scope opens a new area of potential for drought prediction (i.e. predicting spatial drought tracks and areas). It is expected that the drought tracking and prediction method will help populations cope with drought and its severe impacts.
Book Synopsis Integrated Drought Management, Volume 2 by : Vijay P. Singh
Download or read book Integrated Drought Management, Volume 2 written by Vijay P. Singh and published by CRC Press. This book was released on 2023-09-13 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second volume of this comprehensive global perspective on Integrated Drought Management is focused on drought modeling, meteorological prediction, and the use of remote sensing in assessing, analyzing, and monitoring drought. It discusses risk management, planning, policy, and societal impacts of drought such as water pricing, water transfer, water quality, and crop insurance. Through numerous case studies from India, Iran, Brazil, the US, Nepal, and other countries that cover a broad range of topics and geographical regions, this volume serves as a valuable resource for all professionals, researchers, and academics who want to advance their knowledge about droughts. Features Provides a global perspective on drought prediction and management and a synthesis of the recent state of knowledge. Covers a wide range of topics from essential concepts and advanced techniques for forecasting and modeling drought to societal impacts, consequences, and planning Presents numerous case studies with different management approaches from different regions and countries. Addresses how climate change impacts drought, the increasing challenges associated with managing drought, decision-making, and policy implications. Includes contributions from hundreds of experts from around the world. Professionals, researchers, academics, and postgraduate students with knowledge in environmental sciences, ecology, agriculture, forestry, hydrology, water resources engineering, and earth sciences, as well as those interested in how climate change impacts drought management, will gain new insights from the experts featured in this two-volume handbook.
Book Synopsis Spatiotemporal Dynamics of Meteorological and Agricultural Drought in China by : Yi Li
Download or read book Spatiotemporal Dynamics of Meteorological and Agricultural Drought in China written by Yi Li and published by Springer Nature. This book was released on with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Spatial Performance of Meteorological Drought Indices by : Sandeep Ramesh Patil
Download or read book Analysis of Spatial Performance of Meteorological Drought Indices written by Sandeep Ramesh Patil and published by . This book was released on 2012 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Meteorological drought indices are commonly calculated from climatic stations that have long-term historical data and then converted to a regular grid using spatial interpolation methods. The gridded drought indices are mapped to aid decision making by policy makers and the general public. This study analyzes the spatial performance of interpolation methods for meteorological drought indices in the United States based on data from the Co-operative Observer Network (COOP) and United States Historical Climatology Network (USHCN) for different months, climatic regions and years. An error analysis was performed using cross-validation and the results were compared for the 9 climate regions that comprise the United States. Errors are generally higher in regions and months dominated by convective precipitation. Errors are also higher in regions like the western United States that are dominated by mountainous terrain. Higher errors are consistently observed in the southeastern U.S. especially in Florida. Interpolation errors are generally higher in the summer than winter. The accuracy of different drought indices was also compared. The Standardized Precipitation and Evapotranspiration Index (SPEI) tends to have lower errors than Standardized Precipitation Index (SPI) in seasons with significant convective precipitation. This is likely because SPEI uses both precipitation and temperature data in its calculation, whereas SPI is based solely on precipitation. There are also variations in interpolation accuracy based on the network that is used. In general, COOP is more accurate than USHCN because the COOP network has a higher density of stations. USHCN is a subset of the COOP network that is comprised of high quality stations that have a long and complete record. However the difference in accuracy is not as significant as the difference in spatial density between the two networks. For multiscalar SPI, USHCN performs better than COOP because the stations tend to have a longer record. The ordinary kriging method (with optimal function fitting) performed better than Inverse Distance Weighted (IDW) methods (power parameters 2.0 and 2.5) in all cases and therefore it is recommended for interpolating drought indices. However, ordinary kriging only provided a statistically significant improvement in accuracy for the Palmer Drought Severity Index (PDSI) with the COOP network. Therefore it can be concluded that IDW is a reasonable method for interpolating drought indices, but optimal ordinary kriging provides some improvement in accuracy. The most significant factor affecting the spatial accuracy of drought indices is seasonality (precipitation climatology) and this holds true for almost all the regions of U.S. for 1-month SPI and SPEI. The high-quality USHCN network gives better interpolation accuracy with 6-, 9- and 12-month SPI and variation in errors amongst the different SPI time scales is minimal. The difference between networks is also significant for PDSI. Although the absolute magnitude of the differences between interpolation with COOP and USHCN are small, the accuracy of interpolation with COOP is much more spatially variable than with USHCN.
Book Synopsis Drought Assessment by : R. Nagarajan
Download or read book Drought Assessment written by R. Nagarajan and published by Springer Science & Business Media. This book was released on 2010-09-08 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: Information-based decision-making during drought, often brings out some of the excellent practices that are prevalent in society / individuals. This book is designed to provide information on the drought process, meteorological, hydrological, agriculture, socio-economic aspects and available technologies such as satellite remote sensing data analysis and Geographical Information system for assessment. Assessment procedures utilising the various parameters of importance from various sources for micro level management that would enhance the effectiveness of management practice are dealt in detail. Resource availability and affected group determine the relief assistance for the present event and information that would help them in their realisation and preparedness for the forthcoming years by select countries is highlighted. This would help in the formulation of schemes for event mitigation and area development plans. The readers would gain complete knowledge on drought. This book is expected to act as a guide in preparing people as effective natural resource utilizationist under drought situations.
Book Synopsis Meteorological Drought by : Wayne C. Palmer
Download or read book Meteorological Drought written by Wayne C. Palmer and published by . This book was released on 1965 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The underlying concept of the paper is that the amount of precipitation required for the near-normal operation of the established economy of an area during some stated period is dependent on the average climate of the area and on the prevailing meteorological conditions both during and preceding the month or period in question. A method for computing this required precipitation is demonstrated.
Book Synopsis Drought: Research and Science-Policy Interfacing by : Joaquin Andreu
Download or read book Drought: Research and Science-Policy Interfacing written by Joaquin Andreu and published by CRC Press. This book was released on 2015-02-12 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Droughts occur in arid and semi-arid areas of the world, but also in humid areas, and can develop over short periods (flash drought) or longer periods (seasons/decades). Even though progress has been made, it remains difficult to adequately characterize, monitor, forecast and manage droughts, due to their multi-faceted nature.Usually, drought does
Book Synopsis Drought Assessment, Management, and Planning: Theory and Case Studies by : Donald A. Wilhite
Download or read book Drought Assessment, Management, and Planning: Theory and Case Studies written by Donald A. Wilhite and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drought is an insidious hazard of nature. It originates from a deficiency of precipitation that results in a water shortage for some activity or some group. Africa has suffered the most dramatic impacts from drought during the past several decades the recent droughts in the southern and eastern portions of the continent are testimony to that fact. However, the vulnerability of all nations to extended periods of water shortage has been underscored again and again during this same time period. In the past decade alone, droughts have occurred with considerable frequency and severity in most of the developed and developing world. Significant parts of North and South America, Australia, Europe, and Asia have been plagued recently by extended periods of severe drought, often resulting in far-reaching economic, social, and environmental consequences. In the western United States, for example, vast areas are facing the prospects of a sixth or seventh consecutive year of drought in 1993. Concern by members ofthe scientific and policy communities about the inability of governments to respond in an effective and timely manner to drought and its associated impacts exists worldwide. Numerous "calls for action" for improved drought planning and management have been issued by national governments, professional organizations, intergovernmental organizations, nongovernmental organizations, and others. The United Nations' International Decade for Natural Disaster Reduction (lDNDR) is yet another example of an international call for action to reduce the impacts that result from drought and other natural hazards.
Book Synopsis Review, automated estimation and analyses of drought indices in South Asia by : Smakhtin, Vladimir U
Download or read book Review, automated estimation and analyses of drought indices in South Asia written by Smakhtin, Vladimir U and published by IWMI. This book was released on 2004 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper reviews the existing indices which have been developed for monitoring and quantitative assessment of droughts, and analyzes their applicability for drought prediction and management in the specific context of South Asia. It further describes the suite of routines, which have been developed for automated estimation, display and analyses of various drought indices. The suite forms part of the comprehensive computer package, developed earlier and designed to perform the multitude of water resources analyses and hydrometeorological data processing. The seven-step procedure of setting up and running a typical drought-assessment application is described in detail.
