Digital Shoreline Analysis System (DSAS)

What is
Digital Shoreline Analysis System?

Digital Shoreline Analysis System (DSAS) is a tool developed to calculate shoreline change over time using historical and modern shoreline data. It helps measure how coastlines are shifting due to erosion, sedimentation, or sea-level rise by analyzing geospatial data within a GIS environment.

In Malaysia, DSAS is highly useful for coastal planning, erosion monitoring, and environmental impact studies—especially in areas affected by climate change or development. It provides critical insights into the rate of shoreline movement, helping authorities make better decisions for coastal protection and land use.

At Geotechnica, we use DSAS as part of our coastal and environmental services, combining satellite imagery, aerial data, and GIS expertise to deliver accurate, science-based shoreline change analysis that supports sustainable coastal management.

Our Services

Digital Shoreline Analysis System

Shoreline Data Collection

Gathering accurate spatial data from various sources to track shoreline positions over time.

Digitizing Shorelines in GIS
Geo-Referencing Historical Shoreline Data
Satellite Imagery, Aerial Photos, or Historical Maps

Shoreline Change Analysis

Measuring shoreline movement to calculate erosion and accretion trends.

Identifying Hotspots , Erosion or Deposition
Calculating Change Statistics (EPR, NSM, LRR)
Creating Transects (Perpendicular Lines)

Geospatial Mapping & Visualization

Presenting shoreline change data visually through interactive maps and models.

GIS-Based Map Generation
Thematic Mapping for Reports & Planning
Visualization of Change Rates & Shoreline Positions

Statistical & Rate Computation

Applying statistical models to understand long-term shoreline behavior.

Calculating End Point Rate (EPR)
Linear Regression Rate (LRR) Analysis
Standard Deviation & Confidence Interval Estimation

Coastal Risk Assessment & Reporting

Using DSAS output to evaluate risks for planning and development decisions.

Identifying Erosion-Prone Zones
Generating Coastal Vulnerability Reports
Providing Recommendations Shoreline Management

Coastal Planning & Engineering

Integrating DSAS results into engineering, conservation, or policy decisions.

Input for Shoreline Protection Design
Coastal Setback Planning & Zoning Support
Supporting Environmental Impact Assessments (EIA)

Case Studies

DSAS Case Studies

digital shoreline analysis system malaysia (1)

Geoforensic Assessment at TULIP Pipeline ROW

CDM and LSM for Sabah Sarawak Gas Pipeline ROW

digital shoreline analysis system malaysia (2)

Slope Hazard & Risk Assessment along State Road in Sarawak

Tools & Software

DSAS Tech & Tools

digital shoreline analysis system malaysia (2) (1)

digital shoreline analysis system malaysia

Industries

Industries We Work

Oil & Gas

Maps pipeline corridors and monitors terrain for safe infrastructure planning.

Mine & Quarry

Generates 3D terrain models for volume calculations, pit monitoring, and site planning.

Civil Infrastructure

Supports road, rail, and bridge design with precise elevation and surface data.

Utilities Powerlines

Inspects powerline corridors & detects vegetation encroachment for safety.

Forest & Plantation

Measures canopy height, tree density, and biomass for resource management.

Environmental & Coastal

Monitors coastal erosion, flood zones, and conducts environmental impact studies.

Why Us

Why Choose Geotechnica

High End Equipment

We are euipped with latest and high-end LiDAR equipment and software to get 100% accuracy of data & statistics

National Level Project

Since 2020, we had handled 20+ state and national-level projects through LiDAR in geotechnical and geo engineering

Certified Engineers & Surveyors

Our engineers & surveyors are international and local graduate with numbers of experience in geo engineering

Custom Report & GIS Integration

You will received 100% accurate reporting documents and able to get GIS integration needed from our team

FAQ

Digital Shoreline Analysis System FAQ

What is DSAS?

DSAS is a GIS tool that tracks and analyzes shoreline changes over time using geospatial data.

What does DSAS measure?

It calculates erosion, accretion, and shoreline movement rates using historical and current shoreline positions.

Why is DSAS important in Malaysia?

It helps monitor coastal erosion and supports coastal planning in areas affected by sea-level rise and development.

What kind of data does DSAS use?

It uses satellite imagery, aerial photos, topographic maps, and GPS shoreline data.

How accurate is DSAS analysis?

Accuracy depends on the quality of shoreline data and georeferencing; when done properly, it’s highly reliable.

Who uses DSAS?

Coastal engineers, planners, environmental consultants, and government agencies for shoreline management.

Can DSAS help predict future erosion?

Yes, by analyzing long-term trends, DSAS helps forecast future shoreline movement for better risk planning.

Is DSAS a standalone software?

No, it works as an extension within ArcGIS to process and visualize shoreline data.

How often should shoreline analysis be done?

Regular updates (every 5–10 years) are ideal, or after major coastal changes or storms.

Why choose Geotechnica for DSAS services?

We combine DSAS tools with local expertise, remote sensing, and field data for precise shoreline change assessments in Malaysia.

Gallery

DSAS Gallery

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