Tree-ring reconstructions of streamflow
and their use in water management
Durango, CO - May 31, 2007
Workshop
Participant List
This half-day workshop was an "informational
workshop" to provide water managers, stakeholders, and other
interested parties in southwest Colorado with much the same information
as was presented at previous workshops, with an emphasis on reconstruction
data already available for the region. The Mountain
Studies Institute (MSI), based in Silverton, served
as co-sponsor of the workshop, with MSI director Koren Nydick
coordinating the outreach and local logistics.
There were 15 participants from Durango, Bayfield,
Ignacio, and Pagosa Springs, representing local water utilities,
irrigation districts, water consultancies, and tribes. After opening
remarks by Koren about MSI's climate initiatives, I presented
a "Durango-centric"
version of our main instructional presentation, and
took many good questions throughout the presentation. The consensus
of the participants was that a reconstruction of the Animas River
at Durango would be of broad interest. In an e-mail to the group
after the workshop, I committed to developing that reconstruction
by spring 2008, and returning to Durango to present it to the
group. (Update: I did develop the streamflow reconstruction
for the Animas, and presented it to a follow-up
workshop in Durango in June 2008. The workshop report
has a link to the reconstruction data.)
Jeff Lukas,
University of Colorado & WWA

Reconstruction of annual streamflow for the
San Juan River at Bluff, UT, with annual values shown in green
and a 5-year running mean in black. This location represents most
of the runoff from the southern flank of the San Juans. Note the
extended period of low-flow years around 1870, which appears to
be unique in the 436-year record.
TreeFlow
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