FLOOD10356

• Designation Number: 596
• County: Adams
• Stream Name: Comanche Creek, Wolf Creek
• Basin: South Platte
• Title: Floodplain Study - Comanche Creek and Wolf Creek - Technical Appendix
• Date: 5/1/2002
• Prepared By: McLaughlin Water Engineers, Ltd.
• Floodplain - Doc Type: Floodplain Report/Masterplan

receivers were

The following Ashtech Z12 and FXHE geodetic dual-frequency
used:

Ashtech Z12 receiver LP0018 and antenna C587 with accessories

with accessories

Ashtech Z12 receiver LP0124 and antenna C421

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with accessories

Ashtech Z12 receiver LP0259 and antenna C311

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Software:

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v2.505

Ashtech static and kinematic processor,

PNAV
WinPrism

Ashtech processing and adjustment package, v2.0

"

Advanced GPS post-processing software, TerraSat, v2.0

Least squares gps adjustment package, v3.0

GeoGenius

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Fillnet

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Data Processing and Adjustment

The following NGS control points were used

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Quality

Vertical

Horizontal Quality

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Site

Name

First, Class

First

2590

0259

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Class

First,

First

259A

A259

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Second

First, Class
(Ellipsoidal)

First

First

DIDO

BECH

DIDO

BECHTOLT

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Fourth, Class
(Ellipsoidal)

First

BE11

11

BE

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The NGS data sheets are included in appendix

The data was observed at 10 second update rates for kinematic/rapid static
processing, thinned to 30 seconds for static processing. Occupation times
averaged at least fifteen minutes. Earlier sessions (not included in the
adjustment) were observed at 30 second epochs for approximately an hour,
to anticipate problems due to the solar max I ionospheric disturbance issues

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