CODOS has now observed eleven seasons of dust-enhanced snowmelt runoff behavior throughout the Colorado mountains (WY 2006-2018).  Hydrographs at headwater stream gauges have been evaluated and classified within the framework of this dust enhanced snowmelt runoff space utilizing a 3 x 3 x 3 cell matrix corresponding to general characterizations of SWE, dust intensity, and spring weather, as shown in this figure.

 

A conceptual dust enhanced snowmelt runoff model integrating the interactions of March 1 SWE, dust intensity, and spring precipitation.

 

Water Years 2006-2018 have been analyzed and classified for the following stream gauges associated with the Wolf Creek Pass CODOS site:

Rio Grande near Del Norte (pdf)San Juan River at Pagosa Springs (pdf)

For a detailed discussion of this approach, see the state-wide Dust Enhanced Runoff Classification section