Using USGS’ National Geospatial Program and National Hydrography

Database in Indian Country20th Annual Region 9Tribal/EPA Conference

11-29-12

Outline

1.Introductions2.What is the NHD?3.Why is it important to Tribes?

Kimberly Johnston-Dobbskimberly.johnston-dodds@water.ca.gov

Christina Boggschristina.boggs@water.ca.gov

Carol OstergrenNational Geospatial

Programcostergren@usgs.gov

Hank NelsonTechnical NHD Lead hpnelson@usgs.gov

USGS Contacts

What is the NHD and why is it important to

Tribes?

What is the National Hydrography Dataset?Essentially the surface water features found on topographic maps

High Resolution National Hydrography Dataset Statistics

Area Feature Km2 Mi2 # Features

Lakes1 134,073 51,766 6,237,938

Rivers2 49,741 19,205

Water Plants3 2,524 975 136,447

Swamp/Marsh4 107,176 41,381 942,072

Ice Mass 69,236 26,733 21,643

Inundation Area5 10,352 3,997

1 - Not including the Great Lakes2 - Including only river polygon area, not single-line river area3 - Typically water filtration, sewage treatment, fish hatcheries4 - Based on USGS topographic mapping standards – not National Wetland Inventory5 - Difference between normal pool area of lakes and area at spillway height

High Resolution National Hydrography Dataset Statistics

Linear Feature Km Mi Additional Data

Streams1 10,463,136 6,501,479 Perennial5 – 3,207,571 KmIntermittent5 – 7,190,124 Km

Artificial Path2 1,139,929 708,318 In River ~ 353,378 KmIn Lake ~ 638,360 Km

Canal/Ditch 528,909 328,648

Water Pipeline 16,826 10,455

Connector3 29,706 18,458

Coastline4 151,705 94,265

1 – Generic, perennial, and intermittent single-line streams2 – Linear pathway distance through lakes, river polygons, canal polygons, and some marsh/swamp3 – Pathway known to exist, but not seen on imagery4 – Including Great Lakes5 – Not conclusive

Streams – Creating the fundamental network

Swan Creek

Perennial

Intermittent

Ephemeral

Flow Direction – Providing intelligence to the data

Navigation – The basis for analysis

Navigation – Where does a toxic spill go?

Reach14010002000421

Reach14010002003345

Linear Referencing – Stream “Reaches”

100

0

50

7525

14010002000421

Linear Referencing – Stream addresses

USGS Streamgage09050000

Address:Reach – 14010002000421Measure – 19.8392

Coordinate106 05 13.955 W39 32 43.472 N

Linear Referencing – Data “Events”

The river gains intelligence about streamflow

Connecting the streamgage to the network

Streamgage

Dam

Blue River

Artificial Path(Blue River)

Green MountainReservoir

Downstream

Upstream

Dams and Streamgages Integrated with the NHD

nationalmap.gov

The

Nat

iona

l Map

Hydrography

Elevation

Orthoim

agery

Tra

nspo

rtatio

n

Structures

National Hydrography Dataset

Watershed Boundary Dataset

Lakes

Streams

Fish Habitat

Chemistry

Cutthroat Trout

Map Portal

PASSAGE BARRIERS IN CALIFORNIA

Flow volume estimates in the NHDPlus do not account for diversions

NHDPlus estimates only natural stream flow

Colorado RiverPhoto courtesy of Jonathan Waterman

Trans - Basin Diversions

Subregional Regional

Subbasin

3 Levels

Inter- Regional

Inter- Regional

Colorado River Aqueduct Diversion 242 miles long 1.2 million acre-feet per year

Inter- Subregional

California Aqueduct 444 miles long 2.6 million acre-feet per year

Inter- Subregional

Inter- Subbasin

California Diversions

32

A cartographic curiosity -Any guesses what this is?

Thank for your attentionthis afternoon!

More info atwww.nhd.usgs.gov