WSP12287

• File Number: 8220.101.10.C
• Description: Glen Canyon Dam/Lake Powell
• State: AZ
• Basin: Colorado Mainstem
• Date: 9/1/1997
• Author: USDOI-GC Mon & Rsrch
• Title: Development of Monitoring and Research Programming for the Grand Canyon Monitoring and Research Center - Briefing Document - Adaptive management Work Group - Part 2 of 2
• Water Supply Pro - Doc Type: Project Overview

SECTION B.
MONITORING AND SCIENCE PROGRAMS

INTRODUCTION
Monitoring and science programs to be addressed in this announcement include the
following:
1.
2.
3.
4.
S.
6.
7.

Conceptual modeling.
Physical resource program.
Cultural resource program.
Biological resource program.
Socioeconomic resource program.
Information management program.
Advisory services.

These areas represent components of the GCMRC science program.

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1. Conceptual Modeling
As part of the overall synthesis to guide monitoring and research programs in each
resource area, a conceptual model will be designed to represent Colorado River ecosystems,
resources and resource attribute linkages. This systems model will be used to guide monitoring
and research planning, define attribute linkages, characterize key attributes, and make qualitative
assessments of resource change resulting from dam operations. All of the programs will
contribute to the conceptual modeling activities.

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The conceptual model of the Colorado River ecosystem will be used to define and
understand inter-relationships of various resource attributes that respond to dam operations. The
development of a conceptual model is critical to understanding the Colorado River ecosystem
and associated changes resulting from dam operations. It is intended to include extensive
integrated data assessment, interpretation, and synthesis in all resource areas, as well as the first
comprehensive transfer of information to stakeholders regarding the potential impacts of dam
operations on the Colorado River ecosystem and associated resources. These syntheses are to be
included in the individual resource program areas.

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2. The Physical Resources Program
Streamflow and sediment are the primary resources of concern in the physical resources
area, and the main abiotic factors that link dam operations to other downstream resources.

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Monitoring and research efforts will concentrate on four areas:
I. Dam discharges.
2. System-wide sediment budget and geomorphic processes, including erosion of pre-
dam upper terrace deposits containing cultural sites.

5