srd mapping activities
DESCRIPTION
SRD Mapping Activities. Stakeholder Mapping Forum June 5 th and 7 th , 2007 Greenwood Inn & Suites Edmonton & Calgary. SRD Activity Overview. Access Update ATS Geo-Administrative Areas Land Use Framework Base Data Initiative Digital Imagery Hydrography Vegetation Inventory. - PowerPoint PPT PresentationTRANSCRIPT
SRD Mapping Activities
Stakeholder Mapping Forum June 5th and 7th, 2007
Greenwood Inn & SuitesEdmonton & Calgary
SRD Activity Overview
• Access Update
• ATS
• Geo-Administrative Areas
• Land Use Framework Base Data Initiative– Digital Imagery– Hydrography– Vegetation Inventory
ATS Structure
Alberta Township System Feature Classes
g
g
g or c g
g or c
g or c
g
g
g or cg or c
g or c
g or c
g or c g or c g
g - Governing ATS point (MATS)
g g or cg or c
Section boundary
Quarter section boundary
Construction line
c - Constructed, calculated ATS pointm-rr-ttt-ss-NW
m-rr-ttt-ss-SW
m-rr-ttt-ss-NE
m-rr-ttt-ss-SE
m-rr-ttt-ss-NW,RA
m-rr-ttt-ss-SW,RA
m-rr-ttt-ss-SE,RA
g
Geo-Administrative Areas
• Over 100 GeoAdministrative Areas captured to Base Features standard
• ATS v4.1 reconciliation– Linked with update activities
• Increasing demand for access to SRD/GOA Geo-Administrative Areas
• Increased availability through AltaLIS– Currently 29 areas available
2006 Imagery Partnership
LUF Base Data Initiative
Objective: To provide updated, upgraded or new information related to major base mapping data components:– Aerial Photography / Imagery– Access– Hydrography / Wetlands– Watersheds / Hydrocoding– Vegetation Inventory
2007 Imagery Partnership
• Central Alberta MD/County Partnership• Composed of 14 MD/Counties and SRD
in Central Alberta• Lead Municipality is the County of
Wetaskiwin• Comprises about 625 twps• Digital Image Sensor
– CIR, Colour, Pan Chromatic, DSM– Orthos & Aerial Triangulated Stereo Imagery
2007 Imagery Partnership
Hydrographic Flow
Major River LB
Major River RB
River RepresentationPrimary Flow Line
River RepresentationSecondary Flow Line
Island in River
PolygonClosure Line
Single LineRiver or Stream
Arbitrary Flow Connector
Lake RepresentationFlow Line
Island in Lake
River RepresentationPrimary Flow Lines
Single LineRiver or Stream
Arbitrary Flow Connector
Large Rapids
Medium Rapids
Minor Dam (hydrography point event)
Single LineRiver or Stream
Isolated Lake
Flow direction established with Single Line Network and DEM.It is reviewed to ensure proper flow.
Drainage Basins of Alberta (2006)
Hydrography Networks
• Two Hydro Networks created– Simplified Linear Network + Strahler Order– Simplified Linear Network Routes +
Hydrocoding
• Two Hydrocoding Schemas used– Alphanumeric code (names, distances and
orientation)– Numeric code with % distances and implied
orientation)
Strahler Order Coded Simplified Linear Network (Beaver River Sub Basin)
BFD_SSLN
1
2
3
4
5
6
7
Sub Basins of Alberta
Athabasca River
Beaver River
Churchill River
North Saskatchewan River
Beaver RiverSand River
Summary• Access Update of approx. 1300 twps/year• Transition to ATS v4.1. Availability of LSD
level of detail• Additional Geo-Administrative Areas• Hydrography Update commenced. Current
focus is to complete update by watershed• Hydrocoding data created• Opportunity to upgrade/replace existing
provincial DEM
Questions