This data set consists of tree ring reconstruction of annual flow on the upper
Yellowstone River at Corwin Springs, Montana.
Tree-ring series were developed from Douglas-fir (Pseudotsuga menziesii)
tree cores collected on three ridges in southwestern Montana. At each site
we sampled trees growing in open stands on steep, rocky slopes.
The Yellow Mountain Ridge (YMR) and North Fork Ridge (NFR) ... sites
(45o17'N, 111o21'W; 2440 m a.s.l) are both located on south-facing slopes,
35 kilometers northwest of Yellowstone National Park. The Mount Everts site
(MEV) is also south facing and is located at the northern boundary of YNP
near Gardiner, MT (44o59'N,110o40'W; 2560 m a.s.l).
At each site, living Douglas-fir trees were cored. Cross-sections were
also obtained from remnant wood, which was abundant at each site.
At NFR, YMR and MEV, 35 trees (36 radii),31 trees (46 radii) and 48 trees
(69 radii), respectively, were sampled. The MEV chronology is a
combination of cores and disks obtained during the summers of 1999-2001
and a previously constructed chronology obtained from the
International Tree Ring Databank (Gardiner, MT submitted by C. W. Ferguson).
These data have also been contributed to the International Tree Ring Databank.
The streamflow series extending back to 1911 consists of annual
(water year) volume of flow (m3/year) for the Upper Yellowstone River
measured at Corwin Springs, Montana (CSflow). The watershed above
Corwin Springs encompasses 6800 km2 of mountainous terrain within the
boundary of YNP and is unregulated for water diversion in its upper
stretches above the gage at Corwin Springs.
The data consists of gaged and Reconstructed Water Year Annual Yellowstone
River flow at Corwin Springs, Montana (CS). Presented in units of thousands
of acre-feet (af x 10**3) and billions of cubic meters (m3 x 10**9).