Drought Assessment, Management, and Planning: Theory and Case Studies

Drought Assessment, Management, and Planning: Theory and Case Studies
Author: Donald A. Wilhite
Publisher: Springer Science & Business Media
Total Pages: 298
Release: 2012-12-06
Genre: Business & Economics
ISBN: 1461532248

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.

Exploring New Opportunities for Drought Risk Assessment and Awareness to Enhance Drought Risk Management at the Local Levels

Exploring New Opportunities for Drought Risk Assessment and Awareness to Enhance Drought Risk Management at the Local Levels
Author: Elliot D. Wickham
Publisher:
Total Pages: 0
Release: 2019
Genre: Drought management
ISBN: 9781392510520

Drought management in the United States has traditionally taken form of state-level drought since there is no Federal requirement that requires planning that is specifically drought focused. Overtime, drought planning has become more common practice at the state level, with 46 of the 50 states currently having either a drought mitigation or response plan established. Drought planning is also increasing at the sub-state and local level since state-level drought plans may not adequately reduce drought impacts at smaller scales. Despite the growth of drought planning efforts, drought management typically focuses on crisis management, reactive management approaches during a drought, rather than risk management that focuses on approaches to reduce impacts before a drought period. Successful drought risk management is built upon three pillars: (1) monitoring and early warning; (2) impact and vulnerability assessment; and (3) mitigation, preparedness, and response. This work is separated into three articles, focusing on the second and third pillars of drought risk management. The first article in this dissertation is a risk assessment of urban counties in the United States, providing the foundation for creating an Urban Drought Risk Index. The second article evaluates survey data of land use planners across the United States to understand their perceptions and awareness of drought. The final article uses the findings of a drought-specific Threat and Hazard Identification and Risk Assessment (THIRA) workshop (FEMA risk assessment process, focused solely on drought) in the Platte River Basin, NE to evaluate the current drought planning efforts in the study area. The combination of these three articles provide three new and effective opportunities to reduce drought risk at the local levels through increasing the integration of drought planning beyond the traditional drought planning disciplines, which allows for a more comprehensive drought risk management. In addition, approaches used in these three articles can be synthesized together through the use of a drought-specific THIRA process where land use planners are included, providing the ability to link the concepts, outcomes, and recommendations produced by the three articles.

Effects of Drought on Forests and Rangelands in the United States

Effects of Drought on Forests and Rangelands in the United States
Author: James M. Vose
Publisher:
Total Pages: 302
Release: 2016
Genre: Climatic changes
ISBN:

This assessment provides input to the reauthorized National Integrated Drought Information System (NIDIS) and the National Climate Assessment (NCA), and it establishes the scientific foundation needed to manage for drought resilience and adaptation. Focal areas include drought characterization; drought impacts on forest processes and disturbances such as insect outbreaks and wildfire; and consequences for forest and rangeland values. Drought can be a severe natural disaster with substantial social and economic consequences. Drought becomes most obvious when large-scale changes are observed; however, even moderate drought can have long-lasting impacts on the structure and function of forests and rangelands without these obvious large-scale changes. Large, stand-level impacts of drought are already underway in the West, but all U.S. forests are vulnerable to drought. Drought-associated forest disturbances are expected to increase with climatic change. Management actions can either mitigate or exacerbate the effects of drought. A first principal for increasing resilience and adaptation is to avoid management actions that exacerbate the effects of current or future drought. Options to mitigate drought include altering structural or functional components of vegetation, minimizing drought-mediated disturbance such as wildfire or insect outbreaks, and managing for reliable flow of water.