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Last modified
7/28/2009 2:40:23 PM
Creation date
4/24/2008 2:48:52 PM
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Weather Modification
Title
Physical Response of Winter Orographic Clouds over the Sierra Nevada to Airborne Seeding Using Dry Ice or Silver Iodide
Date
4/4/1990
Weather Modification - Doc Type
Report
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<br />W <br />N <br />N <br /> <br />Avg <br />RAD <br />LW <br />(mm) <br /> <br />Seed <br />temperature <br />range <br /> <br />TABLE 4. Summary of initial conditions at the seedline, <br /> <br />Avg <br />dBZ <br />max <br /> <br />Range of <br />echo top <br />temperature <br /> <br />Seeding <br />effects <br />(a, r, g) <br /> <br />Avg <br />max <br />2D-P <br />(L-') <br /> <br />Avg <br />2D-P <br />(L-') <br /> <br />A vg max <br />2D-C <br />(L-') <br /> <br />Avg <br />2D-C <br />(V') <br /> <br />Avg <br />max <br />LWC <br />(g m-3) <br /> <br />Avg <br />LWC <br />(g m-3) <br /> <br />...... <br />o <br />c:: <br />:;g <br />z <br />;> <br />t"" <br />o <br />"r1 <br />;> <br />"'C <br />"'C <br />t"" <br />..... <br />tT1 <br />o <br />s::: <br />tT1 <br />--l <br />tT1 <br />o <br />:;g <br />o <br />t"" <br />o <br />Q <br />><: <br /> <br />Comments <br /> <br />Thin altostratus layer <br />Multiple stratus layers <br />Seeded base of elevated echo <br />2 Cloud layers <br /> <br />15/-12 <br />10/-4 <br />-9/-2 <br />11/-5 <br /> <br />PET <br /> <br />o <br />AW <br /> <br />AW <br /> <br />9.6 <br />3,2 <br /> <br />3.3 <br /> <br />2 Cloud layers <br /> <br />Large drops <br />Embedded precip cores, large drops <br />Weak convection, large drops <br />Convective cells <br />Vigorous band <br />Shallow cloud <br />Diffuse Cloud <br />Diffuse Cloud <br /> <br />- <br /> <br />.17 <br /> <br />Periodic precip cores <br />Convective <br />2 Cloud layers <br /> <br />.04 <br />.03 <br />.18 <br />.29 <br />.10 <br />.16 <br /> <br />-9/- 3 <br /> <br />13/-7 <br />12/-6 <br />10/-5 <br />13/-7 <br />-9/-3 <br />13/-8 <br />14/-8 <br />15/-9 <br />15/-9 <br />15/-4 <br />14/-8 <br />10/-3 <br /> <br />EB <br />EB/O <br />C2/MB <br />C2/CI <br />MB <br />0/C2 <br /> <br />10.4 <br />7.8 <br />8.1 <br />7.8 <br />13.1 <br />4.8 <br /> <br />-17/-16 <br />- 30/-11 <br />-15/-5 <br />-25/-12 <br />-6/-5 <br />-24/-7 <br />-8/-5 <br />-22 <br />-15/-10 <br />-27/-11 <br />-15/-8 <br /> <br />a <br />a <br /> <br />a,g <br />a <br /> <br />0.0 <br />0.6 <br />5.2 <br />5.5 <br /> <br />0.0 <br />0.0 <br />3.2 <br />2.5 <br /> <br />0.0 <br />2.0 <br />18.6 <br />33.8 <br /> <br />0.0 <br />0.0 <br />11.0 <br />10.1 <br /> <br />.06 <br />.11 <br />,08 <br />.07 <br /> <br />.02 <br />,04 <br />.03 <br />.03 <br /> <br />Date <br />(yr/mo/day) <br /> <br />800202 <br />800303 <br />820226 <br />830205 <br /> <br />o <br />o <br /> <br />7,2 <br />5.1 <br /> <br />6 <br />I <br /> <br />-21/- <br />-18/- <br /> <br />Convective cores in rain band <br />2 Vigorous rain bands <br />Wavelike rainbands <br />Embedded cores and rainband <br />2 Rainbands <br />Upwind edge of uniform echo <br />Shallow orographic cloud <br />o echo then EB <br />Precip cores in A W echo <br />Frontal rainband then conv, <br />Dissipating orographic cloud <br />Periodic precip cores <br />Back edge of frontal rainband <br /> <br />- <br /> <br />.09 <br />.10 <br /> <br />.16 <br />,20 <br />.42 <br />.15 <br /> <br />13/-5 <br />-8/-2 <br />-7/-1 <br />-10/- 3 <br />-8/0 <br />-10/-4 <br />-9/- 3 <br />-7/-1 <br />-6/0 <br />2/-6 <br />-6 <br />-6 <br />-6 <br /> <br />o <br /> <br />O/MB <br />MB <br />MB/O <br />O/MB <br />MB <br />o <br />CI/O <br />O/EB <br />AW <br />EB/O <br />O/CT <br />EB/O <br />EB/AW <br /> <br />3.0 <br /> <br />12.3 <br />20.5 <br />16.1 <br />16.0 <br />20.8 <br />9.7 <br /><MDS <br />15.7 <br />22.3 <br />17.6 <br />11.8 <br />4,8 <br /> <br />-25/-11 <br />-5/0 <br />-18/-10 <br />-32/-12 <br />-20/-3 <br />-27/-8 <br />-26/-15 <br />-18/-7 <br /><MDS <br />-17/-11 <br />-22/-12 <br />-30/-15 <br />-13/-8 <br />-27/-6 <br /> <br /> a <br />none <br />none <br />none <br /> a, r <br />none <br />none <br /> a, g <br /> a <br /> a <br />none-placebo <br /> a <br />none-placebo <br />none-placebo <br />none <br />none <br />none <br />none <br />a,g <br />a, X, g <br />none <br />none <br />none-placebo <br /> a <br />a, r,g <br /> a <br /> <br />0.0 <br /> <br />15,2 <br />15.0 <br />23.8 <br /> <br />7.1 <br />25.6 <br />2.3 <br />8.5 <br />4.3 <br />15.9 <br />22.4 <br />10.9 <br /> <br />2.5 <br /> <br />3.6 <br />2.5 <br />5.5 <br /> <br />2.6 <br />1.2 <br />0.9 <br />2.5 <br />2.6 <br />2.9 <br />5.0 <br />2.6 <br /> <br />00. <br /> <br />110.0 <br />477.1 <br />426,5 <br />76.5 <br />78.9 <br />281.4 <br />14.5 <br />66.4 <br />72.2 <br />265.6 <br /> <br />213.8 <br /> <br />22.0 <br /> <br />19.0 <br />130.1 <br />116.5 <br />24.6 <br />22.2 <br />109.1 <br />4.3 <br />17.3 <br />23.3 <br />82.7 <br /> <br />45.3 <br /> <br />.23 <br />.24 <br />.29 <br />.42 <br />.07 <br />.14 <br />.02 <br />.19 <br />.08 <br />,25 <br />.27 <br />.19 <br /> <br />.02 <br /> <br />.05 <br />.06 <br />.09 <br />.12 <br />.02 <br />,05 <br />.0 <br />.06 <br />,04 <br />.11 <br />.09 <br />,05 <br /> <br />830212 <br /> <br />840209 <br />840213 <br />840215 <br />840224 <br />840313 <br />840314a <br />850126 <br />850128 <br />850202 <br />850207 <br />850304 <br />850324 <br /> <br />9.3 <br />26.1 <br />17.8 <br />31.3 <br />22.7 <br />4.1 <br />17.4 <br />18.0 <br />12.9 <br />8.6 <br />18.6 <br />3.5 <br />4.9 <br /> <br />2.8 <br />5.0 <br />3,5 <br />2.7 <br />9.1 <br />1.7 <br />5.6 <br />5.5 <br />7.5 <br />6.5 <br />4.3 <br />1.0 <br />9.9 <br /> <br />269.6 <br />22 1.1 <br />381.2 <br />287.6 <br />223.1 <br />54.4 <br />119.2 <br />305.2 <br />136.2 <br />79.2 <br />116.5 <br />41.3 <br />12.4 <br /> <br />49.5 <br />112.2 <br />82.9 <br />98.0 <br />102.6 <br />15.0 <br />31.7 <br />77.8 <br />73.9 <br />63.7 <br />27.6 <br />9.6 <br />76.1 <br /> <br />.09 <br />.11 <br />,28 <br />.07 <br />.11 <br />.06 <br />.36 <br />.31 <br />,16 <br />.16 <br />.12 <br />.16 <br />.12 <br /> <br />.03 <br />,05 <br />.07 <br />.02 <br />,07 <br />.01 <br />.07 <br />,06 <br />.06 <br />.08 <br />,04 <br />.02 <br />.04 <br /> <br />850327 <br />860104 <br />860114 <br />860123 <br />860130 <br />860203 <br />860205 <br />860212a <br />860212b <br />860312 <br />861205 <br />861218 <br />861222 <br /> <br /><: <br />o <br />8 <br />::: <br />m <br />N <br />'" <br /> <br />image concentrations, <br /> <br />The 2D-C, 2D-P data represent total <br />RAD LW: Radiometer liquid water. <br /> <br />-: data missing. <br />a: aircraft effects. <br />r: radar effects, <br />g: ground effects. <br /> <br />"' <br />
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