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<br /> <br />I <br />I <br /> <br />" - <br /> <br />- <br /> <br />~-:., <br /> <br /> <br /> <br /> <br /> .... <br /> n <br /> _. <br /> ..... ilo <br />'" 1 t <br />~.. . !fit <br /> i <br /> ,J <br /> ~ <br /> -- <br /> <br />. <br /> <br /> <br />l' <br /> <br />-, <br /> <br />.1 <br />II <br /> <br />. <br /> <br />A scientist photographs the shape <br />snowflake and measures its mass. <br />PX-100-6639-1. <br /> <br />of a <br />Photo <br /> <br />" <br /> <br />- <br /> <br />\ <br /> <br />Winds. their direction and <br />intensity, are recorded on <br />this anemometer. Photo <br />PX-O-52600A <br /> <br />-- <br /> <br />'" <br /> <br />- \ <br />) <br />I; , <br /> r <br /> j' I <br />. - <br /> <br />" <br /> <br />\' -\ <br />J .l~ ;- <br />~ -3 <br />~;~.- <br />II..J.. -~'!1"' L..' ___ <br /> <br />,. <br /> <br />. <br /> <br />A balloon is tracked by radar as it rises <br />through the atmosphere to determine wind <br />speeds and direction at various elevations. <br />Photo PXWS~400.1SA <br /> <br />~ 11 /~~ <br />I lNA \" ~) <br /> n s <br /> . , <br /> - 1-, <br /> <br /> <br />a <br /> <br /> <br />I <br />~ ~-..... <br /> <br />A recording precipitation gage <br />tells meteorologists how much <br />snow or rain has fallen during <br />a given period. Photo PS8- <br />600-2254NA. <br /> <br />Figure 1-11. Site instrumentation <br />1-26 <br /> <br />