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Water: Impacts, Risks, and Adaptation 209Box 10.3 (Continued)Department of the Interior SECURE Implementation Actionswith completion anticipated in 2012. Other Southwestbasin studies underway include the TruckeeRiver in California, the Klamath River in Californiaand Oregon, and the Santa Fe River in NewMexico. Preliminary studies were also begun in2011 for the Greater Los Angeles area and the Sacramento–SanJoaquin Basin.SECURE requires regular reports to Congressbeginning in 2012 and every five years thereafter.In April 2011, Reclamation released its first reportwhich quantified the risks from climate change tothe quantity of water resources in seven Reclamationbasins, defined the impacts of climate changeon Reclamation operations, provided a mitigationand adaptation strategy to address each climatechange impact, and outlined its coordination activitieswith respect to the USGS, NOAA, USDAand appropriate state water resource agencies(Reclamation 2011c).Reclamation has also issued other SECUREdocuments. In March 2011, Reclamation releasedbias-corrected and spatially downscaled surfacewaterprojections for several large Reclamationbasins as part of a “West-wide Climate Risk Assessment”(Reclamation 2011d). Reclamation acknowledgesthat the projections suffer from a lackof model calibration and that this problem mustbe addressed in the next iteration of projections.Projections for 2050 showed anticipated declinesof around 10% in annual runoff in the southernportion of the Southwest with a distinct north tosouth gradient of declining flows (see Table 10.1and Figure 10.3).Figure 10.3 Ensemble median percentage change in annual runoff (2050s vs. 1990s) in theSouthwest region. Reproduced from the U.S. Bureau of Reclamation (Reclamation 2011d, Figure 65).