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Local Drought Impact Group (LDIG)

Since 2006, LDIG has explored the impacts of drought on various sectors in Pima County including agricultural water use, ranching, wildfire, hydrology, and flooding. Because many water providers depend on Central Arizona Project water, LDIG also monitors the status of the Colorado River, El Niño Southern Oscillation (ENSO) and other climate weather patterns in relation to their effect on drought conditions and climate variability in the Southwest.

The study of tree ring growth, especially at the University of Arizona’s Tree-Ring Laboratory, has been used to reconstruct flows in the Colorado River and to identify periods of drought as far back as 800 A.D., by comparison, precipitation records began in 1880. This data is being used to understand the extent, frequency, duration and severity of drought in the Southwest.

LDIG also monitors the status of the summer monsoon season and convenes roundtable discussions of drought and water conservation outreach programs.


Meeting Agendas, Summaries and Handouts

LDIG meets bimonthly to monitor the short- and long-term drought status, discuss drought impacts and coordinate drought declarations and responses.

Next meeting: Wednesday, March 10, 2021

Most meetings are held on Wednesdays at 2:30. Until further notice LDIG meetings will be conducted using video conferencing. Contact Kathleen Chavez for the link.
Agenda and Summary Meeting Materials
November 10
  • Agenda
  • Summary
September 8
  • Agenda
  • Summary
July 14
  • Agenda
  • Summary
May 12
  • Agenda
  • Summary
March 10
January 13
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Drought Management

201 N. Stone Ave., 8th Fl.
Tucson, AZ 85701

(520) 724-6500



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