7832

• UCREFRP Catalog Number: 7832
• Author: U.S. Bureau of Reclamation.
• Title: A Pilot For Long-Term Monitoring Of Resources On The Colorado River In The Grand Canyon Using Geographic Information Systems.
• USFW Year: 1995.
• USFW - Doc Type: \
• Copyright Material: NO

T Form Approved
REPORT DOCUMENTATION PAGE
OMB No. 0704-0188
Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instrucitons, searching exisitng data sources,
gathering and
maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information,
including suggestions for reducing this burden to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suit 1204, Arlington
VA
22202-4302, and to the Office of Management and Budget, Paperwork Reduction Report (0504-0188), Washington DC 20503.
1. AGENCY USE ONLY (Leave Blank) 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED
December 1995 Final
4. TITLE AND SUBTITLE 5. FUNDING NUMBERS
A Pilot for Long-Term Monitoring of Resources on the Colorado River in the
Grand Canyon Using Geographic Information Systems PR
6. AUTHOR(S)
Patrick J. Wright, David L. Wegner, and Frank Protiva
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING ORGANIZATION
Bureau of Reclamation REPORT NUMBER
Technical Service Center

Denver CO 80225 R-95-14
9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSORING/MONITORING
Bureau of Reclamation AGENCY REPORT NUMBER
Denver Federal Center

PO Box 25007 DIBR
Denver CO 80225-0007
11. SUPPLEMENTARY NOTES
Microfiche and hard copy available at the Technical Service Center, Denver, Colorado
12a. DISTRIBUTIOWAVAILABILITY STATEMENT 12b. DISTRIBUTION CODE
Available from the National Technical Information Service,
Operations Division, 5285 Port Royal Road, Springfield, Virginia 22161
13. ABSTRACT (Maximum 200 words)
Through the GCES (Glen Canyon Environmental Studies), the Bureau of Reclamation, in cooperation with
several other agencies, has been working to determine environmental impacts of Glen Canyon Dam operations on
the resources of the Colorado River in the Grand Canyon. A long-term monitoring program has been applied as
the optimal methodology to analyze the effects on natural and cultural resources caused by fluctuating flows.
A GIS (Geographic Information System) data base developed to assess the impacts of variable flow rate on Grand
Canyon resources serves as an integral component of the GCES. Long-term program objectives have been
established through a pilot study at a single monitoring site by defining: data that are available and practical for
use in the GCES/GIS; specific resource features to be monitored and temporal increments at which they should
be monitored; the agency responsible for data collection and analysis of each feature; specific end products to be
developed for each feature; software to access, query, display, and analyze the GCES/GIS. Once these objectives
have been defined, they will be applied as the standard and template in the development of other GIS sites.
14. SUBJECT TERMS-- 15. NUMBER OF PAGES
68
16. PRICE CODE
17. SECURITY CLASSIFICATION 18. SECURITY CLASSIFICATION 19. SECURITY CLASSIFICATION
OF REPORT OF THIS PAGE OF ABSTRACT 20. LIMITATION OF ABSTRACT
UL UL UL UL
wn raw-vrcavvava standard Form 298 (Rev. 2-89)
Prescribed by ANSI Std. 230.18
298-102