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GIS - What's New1/3/2007
There have been several new GIS developments since the last GIS News update. Please review the following news items carefully as some will affect all NRCS-MI GIS users in the near future (if not immediately).
GIS Skill Builder Updates
Instructions for resetting an ArcMap layer's data source path when the original data is no longer available.
Outlines the process for adding attributes to wetland determination features and the automated creation of the CPA-026E form.
Describes various methods for digitizing certified wetland determination features.
How to use the NRCS-MI 35mm Slides Tool to retrieve the scanned 35mm compliance slides images in ArcMap.
The NRCS-MI Legacy Master Photos tool will locate and retrieve the georeferenced FSA master photography as a layer in ArcMap.
Directions for using the 2005/2006 NAIP photography within ArcMap.
Geodata Updates
Includes the most
recent listing of geodata availability and organization. ArcMap Template UpdatesUpdated ArcMap templates are being distributed to all offices in Michigan. A labeled roads layer is now included by default, as well as layers which will support the upcoming wetland determination data capture. Toolkit users should copy the updated ToolkitGIS_Template file(s) to each client as necessary.
Certified Wetland DeterminationsThe shapefiles which will contain
digitized wetland determination polygons have been placed on field office
servers. Except in a limited number of test offices, these shapefiles are
currently empty. Digitizing will begin in
2007. (Please see Training Updates below.)
Framework v6bThe State of Michigan Center for Geographic Information (CGI) has released version 6b of their geospatial framework data. This includes updates to transportation, hydrography, and census and government boundaries. Updated shapefiles are being distributed to all field office servers.
NOTE: Several pre-v6b shapefiles are
now obsolete and have been replaced with updated shapefiles. Affected datasets
include: "river_l", "drain_l", and "lake_l" - Replaced with "hydro_l" "river_a", and "lake_a" - Replaced with "hydro_a"
The replacement of these files may
cause invalid layers in previously saved ArcMap projects. Information on fixing
layer paths may be found in the GIS Skill Builder
Setting a Layer's Data Source.
Framework v6b metadata is located in the "f:\geodata\local_metadata" folder.
NAIP StatusThe 2006 National Agricultural
Imagery Program (NAIP) photography for Michigan has been deployed to all field
office servers. This 2 meter resolution data is not ortho-rectified, therefore
should be used as a visual reference only. The 2005 NAIP is still classified as an "interim" version, pending certification by FSA's Aerial Photography Field Office (APFO). Certification is expected shortly, at which point the 2005 NAIP will be considered ortho-rectified.
Field Imagery UpdatesNRCS-MI has initiated two efforts to
capture historic field photography as digital imagery. The resulting imagery can
be displayed as raster layers within ArcMap. FSA 35mm Compliance Slides - Various counties currently being scanned.
(Volunteers are currently need for scanning the remaining 35mm slides. Please contact Lynn Sampson, NRCS State Biologist, for more information.)
Offices with completed counties may
refer to the corresponding GIS Skill Builders for information on using the field
imagery...
Training Updates
Certified Wetland Determinations A wetland determination training session is currently being scheduled for each NRCS-MI area in 2007. The one-day session will include instructions for the digital capture and retrieval of geospatial wetland determinations.
Software Updates
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