mapping growth of cement industries and forest degradation - a hexagon geospatial cse study from...
TRANSCRIPT
Saving Forest through Satellite Images
A success case study from Lumshnong, Meghalaya, India
by Hexagon Geospatial
About Lumshnong, Meghalaya, India
Known for its lush green forests
Rich in minerals such as limestone,
coal, shale, bauxite, and laterite
A natural hotbed for the cement
industry.
About the ProjectMeasuring Impacts of Industrial Growth on Forest Land through Remote Sensing in Lumshnong
Objectives of the Project
Map growth of cement industries
Quantify change in forest degradation
Monitor changes in land use for better decision
making
How Did Technology Aid?Implementation of Hexagon Geospatial technology for monitoring the growth of cement industries and the impact on forest land cover
Identified Key Geospatial RequirementsSatellite Data used IRS LISS III temporal satellite images
of the years 2005, 2009 and 2011
Products Used ERDAS IMAGINE®, tools with the
IMAGINE Expansion pack- DeltaCue and AutoSync
Functionality provided Geo-referencing, co- registration and
change detection
Technology Benefits – ERDAS IMAGINE
About the Software ERDAS IMAGINE - The World's
Leading Geospatial Data Authoring System
Provides tools for all Remote Sensing, Photogrammetry and GIS processing needs
Offers consolidated workflow, smarter processing and dynamic modeling
Benefits for the Project Used for image processing of
satellite data Supervised image classification
of study area Creating accurate forest and
land cover analysis
Technology Benefits – IMAGINE AutoSync
About the Extension IMAGINE AutoSync is part of
the IMAGINE Expansion pack available for ERDAS IMAGINE®
Provides Automatic Image registration for ERDAS IMAGINE® allowing users of all skill levels to generate data free of misalignment issues
Benefits for the Project Change detection process
requires tightly aligned images so that artifacts from poor image registration do not arise as a byproduct of processing
All images were geo-referenced through IMAGINE AutoSync module that is capable of pixel level co-registration of time- 1 and time-2 images.
Technology Benefits - IMAGINE DeltaCue
About the Extension IMAGINE DeltaCue is the
Change Detection Software available as an extension pack for ERDAS IMAGINE®
Simplifies the complexity of change detection process and helps both advanced and novice users
Benefits for the Project Automated image-to-image
normalisation process was implemented to ensure the mean and standard deviation of time-2 images match with the time-1 images
Primary colour difference in DeltaCue was used for change detection and redness difference algorithm was chosen for identifying land-use changes from forest land to deforested land.
Total Expansion of Cement Industrial Units between the years 2005 to 2011Benchmarking the cement manufacturing units as epicenters, buffer areas of 5 to 10 kilometers were considered as study
IRS LISS III temporal satellite images of the years 2005, 2009 and 2011 were usedSupervised classification on the study area was done to categorise forest and non-forest land, with the forest land sub-categorised by density levels – high density, medium density, and low density.
Hexagon Geospatial solutions helped classify forest land accurately, and observe changes in forest cover over the years due to expansion in the cement industrial units in Lumshnong
Customer FeedbackWhat North-Eastern Space Applications Centre (NESAC) has to say
“
”
Looking for more information on monitoring forest cover through remote sensing?
Contact Hexagon GeospatialHexagon Geospatial, 2nd Floor, A 06 Infocity, Sector 34, Gurgaon 122002, Haryana, IndiaTel: +91 124 4633000Email: [email protected]
“
”