WMOD00315 ‎(2)‎

• Title: Colorado River Augmentation Demonstration Program - Technical Report January 1983 - March 1985
• Date: 4/1/1986
• Weather Modification - Doc Type: Report

Contents - continued

Section Page

4.6 Relationships of ice particle characteristics with other meteorological

factors.................................................................................................................... 25

4.7 Computerized sorting routine for ice crystals...............................,.,.......................... 25
4.8 Investigations on limitations of PMS 2D-C aspirated probes .................................... 26

5. Airflow Investigations .................... ............. .......... .................................... 29

5.1 Introduction.................................................................................................................29

5.2 Upper-air wind observations from rawinsondes ..........................................................29
5.3 Upper-air wind observations from aircraft................................................................. .29
5.4 Near surface wind observations ......... .............. ..... ..... ..... ..... ....... ............... ...... ..... ......30
5.5 Future observational requirements............................................................................ ..30

6. Other investigations into instrument

capabilities and IIDlltations ...................................................................... 31

6.1 Rosemount icing meter tests.... ............. ................ .......... ....... ....... ............ ....... ..... ......31
6.2 Microwave radiometer intercomparisons ....... ....... ....................... ...... ......... ......... ..... ..31

6.2.1 Introduction............................................................................................................ .31

6.2.2 Liquid water intercomparisons.............. ........... ..... ....... ................. ..... ....... ......... .....32

6.2.3 Results .......... ..... .... ............. ........... ....... ....... ........... ... ............ ............ ..... .... ....... .....32

6.2.4 Discussion.............................................................................................................. .33

6.3 Radar cloud top observations....... ......... ....... ....... ....... ..... .......................... .................34
6.3.1 Radar specifications and calibration..... ....... ......... ....... ..... ................. ....... ...............34

6.3.2 Performance........................................................................................................... .35

6.3.3 Attenuation by precipitation ........... ................. .... ......... ........................... ....... ........35
6.3.4 Radar cloud tops versus satellite cloud tops ..........................................................35
6.3.5 Distributions of radar-determined cloud tops ..........................................................36

6.3.6 Discussion.................................................................................. .,............................36

7. Summary and recolDmendatloDs............................................................... 39

7.1 Characteristics of Grand Mesa winter clouds and precipitation, and

implications for seeding......................................................................................... .39

7.2 Recommendations for further study..... ....... ............ ....... .................... ....... ....... ..........40

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8. Bibliography.. ..'........................................................................ .................... 41

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