MN GIS/LIS NEWS
Summer 2007
ISSUE 49

MN GIS/LIS NEWS
The Newsletter of the Minnesota GIS/LIS Consortium

Table of Contents

MN GIS/LIS Consortium

2007 Conference
Silent Auction
From the Chair
Spring Workshops
Award Nominations
Scholarship Winners

State
Right of Way Maps Online
More Photos via WMS

Governor's Council
Applications FY08
Commendation Nominations

Regional
MetroGIS

Local
County GIS Association
Ramsey 2006 Orthos
Utility User Group

Federal
SSURGO update
Web Soil Survey v.2
2010 Census Tracts
2010 Census Address Update
Land Cover Website
Satellite Mission

Higher Education
U of M GIS Job Fair
St. Mary's Update

Other Places
Seamless Photos/Topos
WI GIS Coordination
City GIS Sites
Climate Change Risk
Projections Poster
European GPS Update
1507 Map of World

 

More Air Photos Added to LMIC’s WMS Service

By Nancy Rader, Land Management Information Center

 

In many areas of the state, it is astounding how rapidly change can take place in a short time. This becomes easier to see, especially in the Twin Cities metropolitan area, with the addition of three more sets of air photos to LMIC’s web mapping service (WMS).

 

Available Photos

Six different sets of photos are now available:

 

Statewide or nearly statewide

·         2006:  2-meter, natural color (nearly statewide)

·         2003-04:  1-meter, natural color

·         1991-92:  1-meter, black-and-white

 

Twin Cities metropolitan area

·         2004:  0.6-meter, natural color

·         2000:  0.6-meter, black-and-white

·         1997:  0.6-meter, black-and-white

 

Options to Access the Photos

Choose from two options for viewing and using the photos:

 

1. NorthStar Mapper

    http://www.lmic.state.mn.us/chouse/northstarmapper.html

 

This application allows users to view the photos with the option of turning various reference layers on and off. User-selected portions of the photos can also be clipped out and downloaded.

 

2. WMS Service

   http://www.lmic.state.mn.us/chouse/wms_image_server_description.html

 

Users can add the photos as a layer to many GIS software packages without having to download the files to their computer. The Minnesota Geospatial Image Server webpage includes instructions for adding the WMS service to ArcGIS software.

 

An Example of Rapid Change

A section of land in Washington County (T28N R21W Section 13 in the city of Woodbury, at the border with Afton Township) has developed rapidly in the period between 1991 and 2006. All of the following photos were downloaded in a single clipping operation using NorthStar Mapper:

 

  

1991                                                            1997

 

 

2000                                                            2003

 

 

2004                                                            2006

 

For more information about NorthStar Mapper or the WMS Service, contact Jim Dickerson, jim.dickerson@state.mn.us, 651-201-2484 or Nancy Rader, nancy.rader@state.mn.us, 651-201-2489.