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==Technical Notes== | ==Technical Notes== | ||
These articles deal with engineering topics of interest to users of CSU-CHILL data. | These articles deal with engineering topics of interest to users of CSU-CHILL data. | ||
;[[Clock Generator User's Guide (TN-007)]] | |||
:User's Guide to the programmable clock-generator design developed at CSU-CHILL. | |||
;[[Frequency Synthesizer User's Guide (TN-006)]] | |||
:User's Guide to the programmable Frequency Synthesizer design developed at CSU-CHILL. | |||
;[[Radar Echoes from Wind Turbines (TN-004)]] | ;[[Radar Echoes from Wind Turbines (TN-004)]] | ||
:'''Wind Turbines''' have become increasingly common in recent years. Their Doppler spectral characteristics are presented, along with an animation showing the '''repetitive patterns''' present in the turbine spectra. An audio presentation of the same data is also available, clearly showing the temporal variation of the echo. A brief discussion on the effects of wind turbine proliferation on radar meteorology is also presented. | :'''Wind Turbines''' have become increasingly common in recent years. Their Doppler spectral characteristics are presented, along with an animation showing the '''repetitive patterns''' present in the turbine spectra. An audio presentation of the same data is also available, clearly showing the temporal variation of the echo. A brief discussion on the effects of wind turbine proliferation on radar meteorology is also presented. | ||
| Line 30: | Line 36: | ||
;[[Coherent Leakage (TN-003)]] | ;[[Coherent Leakage (TN-003)]] | ||
:This is a short discussion on coherent leakage, discussing the various causes of coherent leakage in weather radar receivers. Some troubleshooting tips are also provided. | :This is a short discussion on coherent leakage, discussing the various causes of coherent leakage in weather radar receivers. Some troubleshooting tips are also provided. | ||
'''[[:Category:Technical Notes|More Technical Notes]]''' | '''[[:Category:Technical Notes|More Technical Notes]]''' | ||
Revision as of 20:21, 4 December 2008
Featured Articles
These are examples of CSU-CHILL data selected from meteorologically interesting cases. The data plots generally have had some basic level of post-processing applied (i.e., calculations of derived fields, utilization of specialized base maps, etc.)
- Polarimetric fields in a developing cumulonimbus (CB) cloud on 10 August 2008
- RHI scans were made through a thunderstorm that was developing near the CSU-CHILL radar site on 10 August 2008. This article presents the Zdr and Ldr fields observed in this CB.
- Hailstorm observation of 20 June 2008
- During continuing testing of the dual offset feed antenna, various scans through severe thunderstorm echoes were conducted on 20 June 2008. One hail-producing storm passed within 20 km of the CSU-CHILL radar site. This article presents some of the polarimetric data fields observed in this storm at low elevation angles.
- Antenna Pattern Evaluation
- A 9-meter dual-offset Gregorian antenna was installed in the spring of 2008 at the CSU-CHILL radar facility to upgrade the performance from the center-fed parabolic reflector previously used at the facility. The new antenna design has several advantages over the old antenna, primarily eliminating beam blockage by using an offset-feed structure and reducing cross-polarization with a dual-reflector design. The antenna pattern was measured in the summer of 2008 by REU student Michael Wood, the results of which are presented in this article.
- Hydrometeor classification in an RHI sweep taken with the dual offset feed antenna
- Polar coordinate data processed with CSU-developed fuzzy logic particle identification software
- First Look Data Collected with the Dual Offset feed Antenna
- SOLO display program plots from selected echo situations
- Tornado Observation from May 22, 2008
- Observations by CSU-CHILL of a nearby tornado
Technical Notes
These articles deal with engineering topics of interest to users of CSU-CHILL data.
- Clock Generator User's Guide (TN-007)
- User's Guide to the programmable clock-generator design developed at CSU-CHILL.
- Frequency Synthesizer User's Guide (TN-006)
- User's Guide to the programmable Frequency Synthesizer design developed at CSU-CHILL.
- Radar Echoes from Wind Turbines (TN-004)
- Wind Turbines have become increasingly common in recent years. Their Doppler spectral characteristics are presented, along with an animation showing the repetitive patterns present in the turbine spectra. An audio presentation of the same data is also available, clearly showing the temporal variation of the echo. A brief discussion on the effects of wind turbine proliferation on radar meteorology is also presented.
- Coherent Leakage (TN-003)
- This is a short discussion on coherent leakage, discussing the various causes of coherent leakage in weather radar receivers. Some troubleshooting tips are also provided.
Recent Observations
- 20071211 Pawnee + KCYS test dual Doppler operations
- 20070423 Polarimetric Observations of a Mesocyclone
More Recent Observations articles
Ongoing Data Analysis
More Ongoing Data Analysis articles
Casebook
The CSU-CHILL Casebook contains summaries of CHILL operations, categorized by keywords, project names and by date of operation.
