Environmental Engineering Reference
In-Depth Information
wetland area and volume at different stages, the calculation output was appended
to the text file with each new stage we used when we used ArcGIS version 9.3,
but in version 10, we needed to create a new output file for each stage, which is
a bit tedious.
2.5 Conclusion
Bathymetric data and analysis can refine our understanding of wetland status and
the impacts of human activities on wetlands. The mapping and analysis of wetlands
requires several distinct steps that include planning, data acquisition (via field
surveys or obtaining digital data), importing data into mapping software, visualiza-
tion, and analysis. Because the precision and accuracy of wetland bathymetry can
play an important role in understanding wetland structure and function, the tech-
nology used have become increasingly sophisticated. Survey equipment accuracy
and efficiency have increased dramatically in the last 20 years, whereas, software
and mapping programs have become more powerful, readily available, and user
friendly. The ability to understand and effectively use bathymetric mapping and
visualization techniques will convey an advantage to anyone who is interested in
wetland science and management.
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