9397

• UCREFRP Catalog Number: 9397
• Author: Hydrosphere Resource Consultants.
• Title: Gunnison River / Aspinall Unit Temperature Study - Phase I.
• USFW Year: 2002.
• USFW - Doc Type: 107,
• Copyright Material: NO

Gunnison River / Aspinall Unit Temperature Analysis -Phase I
Page iv
Figure 23. Average Monthly Stream Temperatures Above the North Fork
Confluence ................................................................................................................27
Figure 24. Average Monthly Stream Temperatures Near Delta, Colorado ..............28
Figure 25. Average Monthly Stream Temperatures Near Grand Junction,
Colorado ....................................................................................................................28
Figure 26. Average Daily Stream Temperatures at Delta as a Function of Average
Daily Stream Temperatures above the North Fork, June - October ..................29
Figure 27. Gunnison River Temperatures at Delta as a Function of Crystal Release
Temperature. Flows = 700 -1000 cfs; Air Temperature = 70 - 79 °F .................31
Figure 28. Gunnison River Temperatures at Delta as a Function of Crystal Release
Temperature. Flows >= 2000 cfs; Air Temperature = 80 - 89 °F .......................32
Figure 29(a). Gunnison River Temperatures at Delta as a Function of Crystal
Release Temperature. Flows = 700 - 1000 cfs; Air Temperature = SO - 89 °F...32
Figure 29(b). Gunnison River Temperatures at Delta as a Function of Crystal
Release Temperature. This regression is a subset of 27a; Air temperature
appears to be a mediocre surrogate for overall impacts of atmospheric
conditions on river temperatures. Flows = 700 -1000 cfs; Air Temperature =
80 - 89 °F ...................................................................................................................33
Figure 30. Gunnison River Temperatures at Delta as a Function of Flows below the
Gunnison Tunnel. Release Temperature = 10 - 11 °C; Air Temperature >= 90
°F ................................................................................................................................34
Figure 31. Gunnison River temperatures at Delta as a Function of Flows below the
Gunnison Tunnel. Release Temperature = 10 - 11 °C; Air Temperature = 80 -
89 °F ...........................................................................................................................35
Figure 32. Gunnison River Temperatures at Delta as a Function of Flows below the
Gunnison Tunnel. Release Temperature = 8 - 9 °C; Air Temperature = 70 - 79
° F ................................................................................................................................35
Figure 33. Gunnison River Temperatures at Delta as a Function of Flows below the
Gunnison Tunnel. Release Temperature = 8 - 9 °C; Air Temperature = 80 - 89
° F ................................................................................................................................3 6
Hydrosphere Resource Consultants