Create Level-12 HUC Selection List within the CONUS
|Created:||July 27, 2017, 3:39 p.m.|
|Last updated:||July 28, 2017, 8:23 p.m. by Lorne Leonard|
This notebook generates an XML file containing up or down stream Level-12 HUCs from a user specified HUC anywhere in the Contiguous United States (CONUS).
Briefly, the resultant XML file contains the following information:
 "WhereStrings" for selecting HUCs within the National Hydrography Dataset (NHD) using SQL in ArcMap or QTGIS.
 Location of stream outlets "Intersection Points" between Level-12 HUCs.
 A list of Closed Basins within the graph hierarchy.
 A list of NLDAS cell ids for forcing selection.
 Graph selection lists using DFS, BFS and undirected Dijkstra graphs. With distances to CONUS Level-12 HUCs.
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