Laserfiche WebLink
<br />RECENT FINDINGS FltOM THE <br />COLORADO RIVER AUGMENTATION DEMONSTRATION PROGRAM (CRADP) <br /> <br />by <br /> <br />A. Super, E. Holroyd, and B. Boe <br />Montrose Skywater Office <br />Bureau of Reclamation <br /> <br />Grand Mesa Site and Field Programs <br /> <br />The Bureau of Reclamation's Colorado River Augmentation <br /> <br />Demonstration Program (CRADP) has recently conducted limited <br /> <br />field programs on the Grand Mesa of west-central Colorado. <br /> <br />This area was chosen for research into winter orographic <br /> <br />clouds and their modification because of several attributes. <br /> <br />These include a high frequency of st,orms (no upwind blockage) <br /> <br />with southwest through northwest tracks, very good access to <br /> <br />the top, generally flat top permitting low-level aircraft <br /> <br />sampling, suitable nearby airports and an upwind rawinsonde <br /> <br />station at Grand Junction. <br /> <br />The main questions being addressed on the Grand Mesa are (1) <br />what is the spatial/temporal distribution of supercooled <br />liquid water (SLW) and associated meteorological factors? <br /> <br />(2) what are the ice particle constraints for seeding? (3) <br />how can the SLW region be appropriately seeded? To date, no <br /> <br />actual seeding has been done as all investigations have dealt <br /> <br />with natural clouds and snowfall. <br /> <br />A one month exploratory effort took place in mid-January to <br /> <br />21 <br />