13.07.2015 Views

le-,3f - E-Library - WMO

le-,3f - E-Library - WMO

le-,3f - E-Library - WMO

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

1985(1) I (2)( 3)(4)(5)(6)(7)(8)(9)(10)(" )(12)TCANADACA 21 Res.PE(R) "Hail28200Target68000ControlAlberta HailProject130 Km radiusof Red DeerIndustrialAirport,Alberta1974 ­1979operational1980­1985ExperimentalNoAgr.(G),Res.(G)Air: cloud base andtop seeding, incloudseeding at-8 to O°C using 5acetone AgI burners,pyrotechnic flares(AgI) and C02solid dispensinggenerators2250 g/hr wingpyrotechnics,10000 g/hrdroppab<strong>le</strong>pyrotechnics,107.5 kg AgItotal; 19.9 kgCO 2 pel<strong>le</strong>ts,NH4I (solution)130 g/hr, 162 1Convective clouds,predominant cloud basetemp. O°C. Operationscriteria based on radarobs. that cloud growthmeets seeding criteriafollowed by aircraftobs. confirming thatcloud temp. & structuremeet seedingcriteria.3 June to31 AugYes/Yes (H)RamdomizedexperimentDOMINICANDM1 lOp.PEREPUBLIC6500Target6500Control18°20'N,70 0 20'W;;19°20'N,71°20'W1984 IEnergyYes (G)Mixture of NaI,NH4I, acetoneburned in propaneflameConvective clouds.Operations criteriabased on soundingand radar echo.108 Days:Mar-JulyFRANCEFR 1 Op. &Res.Hai 155000Target470000ControlAssociationNationa<strong>le</strong>d'Etude et deLutte Contre<strong>le</strong>s F<strong>le</strong>auxAtmospherique(Prevention dela Gr@<strong>le</strong>)SouthwestFrance, Depts.09, 11, 16,17, 31, 33,40, 64, 65,66, 811952YesAgr.(P)G/B: 448 acetoneburners8 g/hr/generator,591 kg AgI totalConvective clouds,predominant cloud basetemp. 0 to +10°C.20 to42 Days:(dependingonDept. )Apr-OctYes/Yes (H)I-''0IGERMANY, FEDERAL REPUBLIC OFDE 1 Res.HailDE2 lOp. &Res.Hai 11700Target4000Control2700Target7000ControlHai 1Suppressiof1inOberschwabenHai 1SuppressionProjectStuttgartAreaSouthernFederalRepublicof GermanyKreis­Ravensburg1978YesStuttgart area 1979(1980infield)YesAgr.(G),Agr.( P)Agr.(G) ,Agr.(P)Air: cloud baseseeding using 2 A/Cand acetone burnersAir: cloud baseseeding using 1 A/Cand pyrotechnicflares13 kg AgI total Convective clouds,predominant cloud basetemp. +5°C.70 g/1 solution/flare (or 2x10 12AgI partic<strong>le</strong>s/flare), 289 flarestotal (AgI)Convective clouds,predominant cloud basetemp. +15°C (highlyvariab<strong>le</strong>): Operationscriteria based on upperair stability, & 24-hrforecast. Seedingcriteria based on radarecho greater than 25DBZ above O°C isotherm& RHI tops above25000 feet.30 Days:May-SeptMay-OctYes/Yes (H)Yes/YesHai 1padscellanalysisI-''00001

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!