GIS-19:TECHNIQUES: REMOTE SENSING AND VIDEO

Order No:

GIS-19

Total Length:

90 minutes



The Use of Satellite Imagery Combined with GIS to Manage Forests with Spruce Beetle Damage

Reference No:

GIS 19-1

In the last five to eight years, large areas of central and southwestern Alaska have experienced the loss of thousands of acres of White Spruce due to infestations of the Spruce Bark Beetle. This problem has created both a major fire hazard and a potential economic opportunity. Alaskan native corporations with lands affected by the Spruce Beetle are actively investigating the feasibility of harvesting and processing this standing dead timber.

Part of the investigation is an inventory of the affected areas. Because of the vast areas involved and their general inaccessibility, the use of satellite imagery was chosen as the most efficient means to conduct the inventory. The raster data was converted into polygon data in the ARC/INFO format and combined with an ownership layer of the same area. This makes possible a variety of analytical exercises useful in planning the most efficient and acceptable means of harvesting this timber.

Lecturer:

  • David J. Ward, Geonex Northwest, Seattle, WA

Suitability for
Level of
Instruction:

  • University (Undergraduate)
  • Advanced Research
  • Professional

Duration:

15 minutes

Suggested
Presentations:

GIS-9-4, GIS-23-1, GIS-35-5, GIS-35-8, GIS-36-1, GIS-36-2, GIS-36-4

 

Forest Landscape Management Opportunities Using a 3-D Image Analysis System

Reference No:

GIS 19-2

The combined use of 3-D imagery, of both pseudo-natural images and classified images derived from satellite imagery, in a 3-D perspective form, provides a strong information base for forestry management. Using historical data and filtering techniques, time series can be produced showing projected changes in the current scene and allowing inferences on future forest cutting programs. This joint project of the Ministry of Forests and EarthProbe Systems Ltd. demonstrates a dynamic approach to the visual impact assessment of forest harvesting.

Lecturer:

  • Ken Fairhurst, Ministry of Forests, Province of British Columbia
  • David Vincent-Jones, Earthprobe Systems, Richmond, British Columbia

Suitability for
Level of
Instruction:

  • University (Undergraduate)
  • Advanced Research
  • Professional

Duration:

18 minutes

 

Video and Direct Digitizing of Aerial Photography for Forest Inventory

Reference No:

GIS 19-3

This presentation describes techniques currently employed by McElhanney Geosurveys Ltd. and Northland Associates in the conversion of four hundred 1:12,500 scale digital map sheets. The average file encompasses 200-300 forest polygons, each with some 30 characters of attribute data.

Lecturer:

  • Ian K. Isaacs, McElhanny Geosurveys Ltd., Ottawa, Ontario

Suitability for
Level of
Instruction:

  • University (Undergraduate)
  • Advanced Research
  • Professional

Duration:

26 minutes

Suggested
Presentations:

GIS-35

 

Multi-Resource Inventories With Air And Spaceborne Digital Remote Sensing, GIS and Video Imaging: Tomorrow's Vision, A Reality Today

Reference No:

GIS 19-4

As the public demand for reliable information about both timber and non-timber resources becomes a major concern, the traditional inventory techniques may have serious constraints in delivering the required information.

Lecturer:

  • Frank Hegyi, Penny Walker, Ferihill Technologies Ltd., Victoria, British Columbia

Suitability for
Level of
Instruction:

  • University (Undergraduate)
  • Advanced Research
  • Professional

Duration:

24 minutes

Suggested
Presentations:

GIS-15, GIS-36-1, GIS-36-2, GIS-38, GIS-41

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