7274

• UCREFRP Catalog Number: 7274
• Author: Pucherelli, M. J., R. C. Clark and R. D. Williams.
• Title: 1989 Upper Basin Interagency Standardized Monitoring Program - Green and Colorado Rivers Habitat Mapping Using Airborne Video.
• USFW Year: 1990.
• USFW - Doc Type: ‎(Report No. R-90-20)‎,
• Copyright Material: NO

backwater or side channel occurs in more than one frame and that the measurements need to be
added together. The number following the dash indicates the tenth of a mile in which that portion
occurred.

After each video frame was captured, two copies were saved, one for analysis and the other for
future modification. One copy was then annotated with the channel width and any backwater or
side channel outlines. This annotated version and the original or unlabeled image were then saved
in one RVF (raster-vector file). The file was labeled with the nearest tenth river-mile and preceded
by a C for Colorado River or G for Green River. Also included in the label were the number of
the frame within each river-mile, the video tape number, the tape counter number, and the date of
video acquisition. As an example, the following is a list of all frames for Colorado River mile 110:

CllO-8 FIT5TC1447-09j26j89 ...... Colorado River, mile 110.8, frame 1,
tape 5, tape counter 1447

CllO-6 F2T5TCI504-09j26j89
C110-4 F3T5TC1517-09j26j89
CI10-2 F4T5TC1538-09j26j89
CllO-O F5T5TC1548-09j26j89

This procedure was implemented to allow for easy retrieval of source material for all data obtained
in the study. All RVF files were stored on double-sided, high-density floppy diskettes. Data were
stored in four text files corresponding to the four monitoring reaches (two on the Colorado River
and two on the Green River). All data are presented in appendix A. All subsequent ISMP river
habitat data will be stored on erasable optical disks.

Upon completion of the video analysis, the text files containing the numerical data were transferred
directly into Lotus 1-2-3 version 2.01 using the file, import, data, parse sequence of commands. The
data were separated into channel width and backwater and side channel area. The four monitoring
reaches were broken down into smaller sections (20 miles, where possible) for comparative analysis
as follows:

Colorado River
Lower reach UDDer reach
0-20 140-170
21-40
41-60
61-80
81-100
101-110

Green River
Lower reach
0-15
16-35
36-55
56-75
76-95
96-115
116-120

UDDer reach
200-215
216-235
236-255
256-275
276-295
295-315
316-317

Locations of the lower and upper monitoring reaches of the Green and Colorado Rivers are
illustrated on figure 1, Location Map.

The Green River was segmented into sections that corresponded as closely as possible to those from
the 1988 study (Pucherelli and Clark, 1989) to allow for direct comparison of results. Data are
reported in tabular form for the upper and lower reaches of the Green and Colorado Rivers and
include average channel width (meters) and standard deviation; number of backwaters, number of

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