Show Weather V Modification I II Tov To conclude de thus this series of articles about weather mod mods i I through cloud seed leed ink Ing below Is la a list of ques queSt questions I most frequently asked I of Dr Kricka Krick and their answers Dr Krick I Ihas I has pointed out that these t i answers are based on present I knowledge and that future I research by his scientific staff may completely change these I answers 1 1 1 How flow much sliver silver Iodide Is needed for an effective opera tion and anti how far from the gen orators will wm the silver Iodide be effective A. A At present nobody knows for sure but these answers will Vary with each we weather ther situ anon Dr Bernard of General Electric states that It Its s is possible ble to seed cubic miles of atmosphere In one hour with I one generator putting out small quantities of silver Iodide If the depth of the atmo atmosphere phere In which this operation Is effective Is five miles mlles then the area affected af might be 30 miles wide and miles long With di dif dlf different ferent wind currents it might be 60 0 miles wide and miles I long 2 By increasing rainfall in one area do you rob other areas of rain A. A No The atmosphere Is extremely extremely ex dynamic and In a constant con constant stant state of discharge and recharge re rea charge during a rainstorm Any decrease in areas downwind from a seeded area are Insignificant and in some circum circumstances stances increases result downwind down downwind wind outside the target area 3 How long does It take silver silver sil ver iodide to reach effective seeding levels A. A This too varies with each weather situation and depends on the amount of updrafts and temperatures inthe Inthe in inthe the atmosphere Under certain conditions silver slIver iodide might be effective within a few seconds sec seconds after it comes out 0 of the generator and at the other extreme ex ex- Creme the time interval might be several hours 4 We get all aU our our storms from the north and you are using us ing generators south of us Why A. A Sliver Silver Iodide generators are located to make the most effective use of topographic features and weather situa Movement of rain is not indicative of the movement of moist air Into the storm Wind directions on the surface of the earth are no Indication of the flow of wind at levels where the silver slIver Iodide is doing its work I 5 Does silver slIver iodide smoke smokerise smokerise rise at the same rate as ordinary ordinary ordin ary smokes A. A No not If the crystals are the proper size Dr Kricks Krick's generators generators gen put out sliver silver iodide crystals crystals as small as four ten ten- millionths of an inch in eter Smoke which is Js visible to the human eye is Js made up tIp of particles on the order of a million mil lion pon ion times bigger than these silver sliver iodide crystals The area covered by four trillion silver slIver iodide particles one layer thick is about the size of one side ofa of ofa ofa a penny 6 If U you start to increase rain can you turn it off A. A No except in very special cases Further research along 1 this line may open new possibilities however 7 7 A silver iodide generator is pretty small smaIl and not very impressive impressive im hn looking and you cantsee cant can't cantsee cantsee see the smoke coming out of it Does It really do anything A. A Yes Look back at the answer ans ansa wet to the first question A ra radio radio dio dlo isn't very big either and you cant can't see that It Is doing anything but you use It everyday every everyday everyday day tp hear music and voices that may be originating hundreds hundreds hun of miles mUes from where your radio set Is located 8 How Ho do you OU produce these silver sliver Iodide e crystals A. A The Krick organization uses us es a special type of coke which has been soaked in a solution of acetone and carrying concentrations concentrations concen of silver sUver iodide When spread out to dry the acetone evaporates off the coke and leaves each piece of this coke coated with silver slIver iodide As this coke is burned at high temperatures tern tem 2500 to 2500 to degrees F this silver iodide is vapor When this vapor leaves the furnace dt Is cooled and turns into the crystalline form of silver slIver iodide 9 Isn't it sometimes Impossible ble to get silver slIver iodide up up to effective seeding levels A A. Yes but but these situations very seldom occur Our ability to get silver slIver iodide to where we want it varies with each weather situation Sometimes it Is possible to seed a storm over a project with generators located inside the project boun daries More often generators outside the project area are used to get the silver slIver iodide I crystals up to effective seeding levels over the project area 10 We frequently get clouds over our area particularly when It is cold but we still dont don't get any rain or snow Why A. A Usually when this situation situa tion Lion occurs occurs occurs' these clouds are shallow and since they are set sd cold they contain little moisture mois mols ture 11 U. If cloud seeding really works why dont don't all your target tar target get et areas get more rainfall than other other- areas where clouds are not being seeded A. A This is due to the natural variability in the weather eather and the storm paths w which are determined determined de de- de by natural forces If we had some system for routing rout ing these storms In the direction direction tion we want them to go then we would be in a petition to guarantee rain As it is some areas are going to get more rain in some years than other areas Our only function is to Increase the amount of rain which Is going to occur naturally natura naturally ally over our target areas 12 Can you guarantee that all our raIns rans will I be gentle and that we wont won't get any damaging damaging damage ing hall hail A. A No We only know that this gentle rain effect has been reported consistently from froma I a majority of our ts nar nar- In the northwest United United Uni ted States This effect along with hail hall suppression still needs more research before ItIs it itIs itIs Is fully funy understood and per perfected 13 Why is the ground generator gen method better than airplane airplane air air- plane seeding A. A It Is possible to do more uniform seeding over greater areas at less cost with ground generators and the best seeding seedIng seed seed- Ing opportunities occur occur in the poorest flying weather |