USGS/Cascades Volcano Observatory, Vancouver, Washington
REPORT:
Field Comparisons of Six Pressure-Difference Bedload Samplers in High-Energy
Flow
--
Dallas Childers, 1999,
Field Comparisons of Six Pressure-Difference Bedload Samplers in High-Energy
Flow:
U.S. Geological Survey Water Resources Investigations Report 92-4068, 59p.
Table of Contents
- Explanation of terms
-
Abstract
- Introduction
- Purpose and scope
- Previous investigations
- Bedload samplers and equipment
- Bedload samplers
- Nylon mesh bag
- Support equipment
- Data Program
- Factors affecting sampling of bedload transport
- Methods of comparison and sources of error
- Field tests
- Sampling conditions
- Formulas for computation of unit bedload transport rate
- Data analysis
- Sampled bedload
- Sampling ratios
- Unit bedload sampling ratio comparisons
- Factors affecting sampling results
- Bedload sampler stability
- Bedload sampler trap efficiency and design
- Bedload sampling technique
- Summary
- References
- Appendix
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01/07/00, Lyn Topinka