Review AECOM’s Local-Res NHD subbasins

Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships

Initial Review of AECOM’s RAW data

• Visually Review AECOM’s drainage vectors• geometry matches aerials• drainage density is consistent

Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships

QC of AECOM’s completed subbasin

• Suite of tools in NHDTools in ArcToolbox• Review GNIS names• Review reachcode delineation• Review attributes on drainage features

• In addition to:•Topology (gaps, overlaps)• Artificial paths• Check downstream flow (arc arrows)

Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships

QC of AECOM’s completed subbasin

Artificial Path Outside of Waterbody

NHD Tools

Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships

QC of AECOM’s completed subbasin

gap

Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships

QC of AECOM’s completed subbasin

Branched GNIS Name

Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships

QC of AECOM’s completed subbasin

Gapped GNIS Name

Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships

QC of AECOM’s completed subbasin

Gapped GNIS Name