At a Glance
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200
Square Kilometres
- Location
- Australia
- Offices
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- Location
- Australia
- Offices
Share
Northwest Australia Vegetation Recognition
About 50 kilometres (31 miles) off the northwest coast of Australia is the country¡¯s largest onshore oil production site. For over 15 years our field teams have been there conducting soil and ecological investigations to support rehabilitated areas¡ªbut in recent years, we¡¯ve been investigating a new opportunity for environmental assessment.
Remote sensing techniques¡ªparticularly using aerial imagery and object-based image analysis (OBIA)¡ªhave been used in many different fields to collect data. Here, it would be implemented through yearly aircraft flyovers and used to complement the existing on-site revegetation monitoring. We pitched the idea to our project partners, and with their library of high-resolution imagery, pretty soon we were monitoring larger areas, reducing costs, and improving field team safety. Using OBIA, the imagery is segmented into objects with similar spectral reflectance (colour, brightness), shape, and size. This allows cover values to be attributed to specific classes such as grass species, shrubs, and bare soil.
The result? We¡¯ve established that with appropriate on-ground information about the vegetation, analysis of high-resolution aerial imagery can provide accurate estimates of vegetation cover, even for some individual species. We are now routinely using OBIA in the area to monitor vegetation status on rehabilitated sites. In addition, we are exploring the potential to use the technology to detect potential environmental impacts through changes in vegetation.?
At a Glance
-
200
Square Kilometres
- Location
- Australia
- Offices
-
- Location
- Australia
- Offices
Share
Natasha Banning, Group Lead, Rehabilitation, Closure and Geoscience
I love that I can work towards restoring ecosystems that have been disturbed while improving the environmental outcomes for our projects.
David Jasper, Environmental Science Technical Leader
Our Perth office serves a geographically diverse state, with a large and diverse resources industry¡ªwhich means a lot of opportunity.
Dr. Ruchira Somaweera, Principal Environmental Scientist/Practice Lead, Ecology
I approach every project with conservation, preservation, and sustainability in mind.
Chris Urbanek, Senior GIS Analyst
I strive to harness technology to amplify the beauty and resilience of ecosystems.
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