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FIGURE 5-1 Integration of NAWQA data and ancillary data dramatically improves the spatial coverage of the SPARROW model. Red indicates USGS sites (196 sites), while black indicates state agency sites matched to a USGS gage (586 sites). Only 44 of the total sites shown are NAWQA monitoring sites. SOURCE: NAWQA leadership team, personal communication, May 9, 2009.

experience, will continue to be an issue in all cooperative and collaborative efforts; continued diligence is advised.

The Cycle 3 plan indirectly suggests that NAWQA will need to pay particular attention to its design in preparation for this more ambitious agenda. In the past, NAWQA has revamped its model operations as it has evolved—largely to cope with resource constraints—from the original study unit design to the Major River Basin “building blocks” to maintain a capacity to conduct national assessments. To meet the national needs outlined in the Cycle 3 Science Plan, NAWQA will need to emphasize collaboration in two modes: as a leader that partners with other USGS and external programs, and as a follower with other federal agencies, state and local governments, and the private sector.



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