VIDEO  METRIC SYSTEMSTM
from NorthWest Research Associates, Inc.
pline480.gif (936 bytes)

Argus Beach Monitoring Stations (ABMS)

Quantitative Video Monitoring Services for Coastal Zone

Management and Engineering

 

Performance

The table below summarizes typical performance specifications for an ABMS based on comparisons to ground truth data.

Parameter

Value

Range*

40 m to 2.5 km

Resolution*

At 100 meters from station:
    x,z = 0.1 m
    y = 0.5 m
At 1000 meters from station:
    x,z = 0.5 m
    y = 12.5 m

Accuracy

0.35–2.4 m cross-shore
10-20 cm vertical

Averaging Interval

10 min. nominal

*Varies with camera height and lens focal length.

Comparisons of ABMS data to ground truth observations obtained during intensive field testing demonstrate that the ABMS technology provides data of high quality and reliability (see chart below).

Comparison of shoreline location measured by an ABMS and Differential Global Positioning System.  shorecomp3.gif (3872 bytes)

Comparison of shoreline location measured by an ABMS and Differential Global Positioning System (DGPS).

 

| top

Home | Concept | Data Products and Services | Performance | Benefits
 ABMS Description | ABMS Sites | Contact Us | Glossary | Downloads

Send us e-mail

logot.gif (4223 bytes)
4118 148th Ave NE Redmond, WA 98052
(425) 556-9055 FAX (425) 556-9099   www.nwra.com

Copyright   1999 - 2001 NorthWest Research Associates, Inc. All rights reserved.

Last updated August 2001