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EDDI is a drought indicator that uses atmospheric evaporative demand (E0) anomalies across a time-window of interest relative to its climatology to indicate the spatial extent and severity of drought. This page provides access to near-real-time (with a five-day latency, i.e., the most recent information is five days old) EDDI plots with time windows integrating E0 anomalies from 1 to 12 weeks and 1 to 12 months from the most current date. E0 is calculated using the Penman Monteith FAO56 reference evapotranspiration formulation driven by temperature, humidity, wind speed, and incoming solar radiation from the North American Land Data Assimilation System (NLDAS-2) dataset. For a particular time-window, EDDI is estimated...
The impacts of the United States drought of 2007 to both society and ecosystems were substantive and included multi-billion dollar agricultural losses and the second worst wildfire season on record. The purpose of this paper is to place the 2007 drought in historical perspective relative to the climate record from 1895?2007 to increase our understanding of this hazard and contribute to improvements of drought mitigation plans. We compared the 2007 drought historically against the climatic record (1895?2007) using the Palmer Drought Severity Index (PDSI). We then examined the temporal progression of the 2007 drought and placed the peak month of drought severity (November) in historical perspective using rankings...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Anomalies,
Climate Research,
Geopotential height,
Historical rank,
Media,
This 2-pager describes the Evaporative Demand Drought Index (EDDI), which is a drought index that can serve as an indicator of both rapidly evolving “flash” droughts (developing over a few weeks) and sustained droughts (developing over months but lasting up to years).
Categories: Publication;
Types: Citation;
Tags: Drought,
Drought, Fire and Extreme Weather,
EDDI,
Evaporative Demand Drought Index,
North Central CASC,
UNL scientists are part of a coalition helping two American Indian tribes prepare for drought and other climate fluctuations. The tribes — the Eastern Shoshone and Northern Arapaho, both located on the Wind River Indian Reservation in western Wyoming — have worked with climate and social scientists in the past year to prepare regular climate and drought summaries for use in making water and resource decisions. A second phase, launched this summer, includes UNL's Cody Knutson and will generate a vulnerability assessment designed to help the tribes reduce the likelihood of future drought-related impacts. Read More: http://news.unl.edu/newsrooms/unltoday/article/researchers-help-tribes-enhance-drought-and-climate-resilience/
Economic, environmental, and societal impacts of drought are severe and extremely costly. For 1988 alone, the Climate Prediction Center calculated that drought cost the US$39 billion (in 1988 dollars). Vulnerability to drought?a routinely occurring part of the natural hydrologic cycle?is increasing in all parts of the United States due to: population growth and population shifts, especially in the water-short western states and in the Southeast; land-use changes; global climate change; and increased water resource demands. The U.S. population has increased by about 50% since 1970 to more than 300 million, much of that occurring in water-scarce western regions. Land use changes due to development and other activities...
Categories: Publication;
Types: Citation
Severe droughts have been associated with regional-scale forest mortality worldwide. Climate change is expected to exacerbate regional mortality events; however, prediction remains difficult because the physiological mechanisms underlying drought survival and mortality are poorly understood. We developed a hydraulically based theory considering carbon balance and insect resistance that allowed development and examination of hypotheses regarding survival and mortality. Multiple mechanisms may cause mortality during drought. A common mechanism for plants with isohydric regulation of water status results from avoidance of drought-induced hydraulic failure via stomatal closure, resulting in carbon starvation and a cascade...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: New Phytologist,
die-off,
hydraulics,
imate,
vegetation mortality,
Species that inhabit the arid Southwest are adapted to living in hot, dry environments. Yet the increasing frequency and severity of drought in the region may create conditions that even these hardy species can’t survive. This project examined the impacts of drought in the southwestern U.S. on four of the region’s iconic species: desert bighorn sheep, American pronghorn, scaled quail, and Rio Grande cutthroat trout. Grasping the impacts of drought on fish and wildlife is critical for management planning in the Southwest, as climate models project warmer, drier conditions for the region in the future. Species are known to respond to environmental changes such as drought in different ways. Often, before changes...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2013,
Birds,
Birds,
CASC,
Completed,
The South Central U.S. is one of the main agricultural regions in North America: annual agricultural production is valued at more than $44 billion dollars. However, as climate conditions change, the region is experiencing more frequent and severe droughts, with significant impacts on agriculture and broader consequences for land management. For example, in 2011 drought caused an estimated $7.6 billion in agricultural losses in Texas and an additional $1.6 billion in Oklahoma. Although there are many drought monitoring tools available, most of these tools were developed without input from the stakeholders, such as farmers and ranchers, who are intended to use them. The goal of this project is to assess the information...
Categories: Data;
Types: Citation;
Tags: Data Visualization & Tools,
Drought,
Drought, Fire and Extreme Weather,
Science Tools For Managers,
South Central CASC,
The urgency for drought resilience planning has never been greater. With rapid changes in land use and increasing impacts from climate change, communities need to determine ways to meet their drought planning goals. Montana is forging new ground to join agencies, resource managers and communities to plan for drought impacts and build drought resilience. The State of Montana and the National Drought Resilience Partnership (NDRP)–a collaborative of federal and state agencies, non-governmental organizations (NGOs), and watershed stakeholders–are working together to leverage and deliver technical, human and financial resources to help address drought in the arid West.The Missouri Headwaters Basin in southwest Montana...
Droughts in the Hawaiian Islands can enhance wildfire risk, diminish freshwater resources, and devastate threatened and endangered species on land and in nearshore ecosystems. During periods of drought, cloud-water interception, or fog drip (the process by which water droplets accumulate on the leaves and branches of plants and then drip to the ground) in Hawai‘i’s rain forests may play an important role in providing moisture for plants, reducing wildfire risk within the fog zone, and contributing to groundwater recharge (the process by which water moves downward from the surface through the ground to the groundwater table) that sustains water flow in streams during dry periods. Estimates of the changes in water...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2016,
CASC,
Completed,
Drought,
Drought,
Water is essential to our health, economy and quality of life. A scarcity of water has always characterized life in the West, and with increasing demands and limited supplies, smart and efficient water use is key. One answer is to develop conservation and drought mitigation strategies that start on the ground with full community participation and integrate high level tools available from state and federal partners.The National Drought Resiliency Partnership (NDRP) is a collaborative group of federal agencies working together to implement President Obama’s Climate Action Plan. In partnership with the Montana Department of Natural Resources and Conservation (DNRC) and other state and local collaborators, the Missouri...
Richfield 1 Drought-Booth is a Petroleum well. There are 2 geophysical logs available for this well.
Categories: Physical Item
In the western U.S., rising temperatures and pronounced drought conditions pose significant challenges to public land managers. Widespread declines of multiple plant species have already been observed, providing insight into what the future could look like for vegetation in the region as conditions are projected to become warmer and drier. To understand how vulnerable western ecosystems are to drought, managers need to know which climatic and soil conditions cause habitats to change, and at what rate these changes may occur – important topics on which there is little available data. This project seeks to identify the vulnerability of habitats in the western U.S. to drought. Researchers will compare changes in...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2015,
CASC,
Drought,
Drought,
Drought, Fire and Extreme Weather,
Miles 1 Drought Thomas is a Petroleum well. There are 1 geophysical logs available for this well.
Categories: Physical Item
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