Conference Papers

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January 1, 1984

Differential predation on wintering dunlin: age-specific variation in flocking behavior Differential predation on wintering dunlin: age-specific variation in flocking behavior

No abstract available at this time

Authors

B.E. Kus

Ecosystems Mission Area, Western Ecological Research Center (WERC)

January 1, 1984

Differentiation of anadromous salmonid stocks Differentiation of anadromous salmonid stocks

No abstract available

Authors

J.D. McIntyre

Ecosystems Mission Area, Western Fisheries Research Center

January 1, 1984

DIGITAL PROCESSING TECHNIQUES FOR IMAGE MAPPING WITH LANDSAT TM AND SPOT SIMULATOR DATA. DIGITAL PROCESSING TECHNIQUES FOR IMAGE MAPPING WITH LANDSAT TM AND SPOT SIMULATOR DATA.

To overcome certain problems associated with the visual selection of Landsat TM bands for image mapping, the author used a quantitative technique that ranks the 20 possible three-band combinations based upon their information content. Standard deviations and correlation coefficients can be used to compute a value called the Optimum Index Factor (OIF) for each of the 20 possible...

Authors

Pat S. Chavez

January 1, 1984

DISCRIMINATION OF GRANITOIDS AND MINERALIZED GRANITOIDS IN THE MIDYAN REGION, NORTHWESTERN ARABIAN SHIELD, SAUDI ARABIA, BY LANDSAT MSS DATA-ANALYSIS. DISCRIMINATION OF GRANITOIDS AND MINERALIZED GRANITOIDS IN THE MIDYAN REGION, NORTHWESTERN ARABIAN SHIELD, SAUDI ARABIA, BY LANDSAT MSS DATA-ANALYSIS.

Landsat multispectral scanner (MSS) band and band-ratio databases of two scenes covering the Midyan region of northwestern Saudi Arabia were examined quantitatively and qualitatively to determine which databases best discriminate the geologic units of this semi-arid and arid region. Unsupervised, linear-discriminant cluster-analysis was performed on these two band-ratio combinations and...

Authors

Philip A. Davis, Maurice J. Grolier

January 1, 1984

Disturbance vs. competition: the influence of Pacific winter storms on intertidal community organizationn at San Nicolas Island, California Disturbance vs. competition: the influence of Pacific winter storms on intertidal community organizationn at San Nicolas Island, California

No abstract available at this time

Authors

J. A. Estes, D. R. Lindberg

Ecosystems Mission Area, Western Ecological Research Center (WERC)

January 1, 1984

EFFECT ON BRIDGE PIERS ON STREAMFLOW AND CHANNEL GEOMETRY. EFFECT ON BRIDGE PIERS ON STREAMFLOW AND CHANNEL GEOMETRY.

Piers in the waterway affect the velocity distribution across the channel and may act as barriers to floating debris. In addition, they also affect channel geometry by causing general and local scour in the vicinity of the bridge. The level of hydraulic efficiency of an unobstructed channel may be reduced by several percent if piers are placed in the waterway. Pier design should consider...

Authors

James C. Blodgett