The University of Arizona

Monthly Archive | CLIMAS

Monthly Archive

Field of Dreams, or Dream Team? Assessing Two Models for Drought Impact Reporting in the Semiarid Southwest

Friday, March 22, 2013

To make decisions about drought declarations, status, and relief funds, decision makers need high quality local-level drought impact data. In response to this need in Arizona, the Arizona DroughtWatch program was created, which includes an online drought impacts reporting system. Despite extensive and intensive collaboration and consultation with the intended public participants, Arizona DroughtWatch has had few consistent users and has failed to live up to its goal of providing decision makers or the public with high quality drought impacts data. (read more)

Drought Impacts on Dust and Health in New Mexico

Friday, March 1, 2013

Dust storms create both health issues and transportation hazards. Valley Fever is endemic to the border region and gets carried with the dust. Interstates and local highways are often closed for hours in an attempt to avoid accidents and injuries. Windblown dust concentrations can be very high when strong winds occur during extended droughts - creating “exceptional episodes” of poor air quality. Air quality in rural areas of New Mexico and along the US/Mexico border is normally acceptable and well below the US EPA’s air quality standards for particulate matter. But these episodes expose millions of people to particulate levels that exceed air quality standards. (read more)

Trying to Solve the Colorado River Supply-Demand Imbalance

Friday, March 1, 2013

The Colorado River, as many Southwesterners know, quenches the thirst of millions of people in several states. Many also are aware that the river is over-allocated, with more water designated to each of the Southwest states and Mexico than is the long-term average flow of the river. What’s more, streamflow over the past decade (2001-2010) has been substantially lower than the 20th-century average, and the latest projections show this trend continuing into the mid- to late-21st century (Southwest Climate Assessment Summary for Decision Makers and the 2013 draft of the National Climate Assessment). These issues pose serious problems for water resource managers. (Read More)