so rhai erop yields are hlghes| duwnwmd lmm windbreak areas. wnerever snow blows aeroirs rhe iandseape, windbreaks oi savannah zunliguralians ereaie springso inoishire «aps ii is also pronble iodo ihis by using open swales in snew-drrn areas Wlndbreaks in exposzd snowiield areas ean be better esraohshed in ihe lee or eanh bonds :1! in naioral eorniee hisi polewards ol ndgei. CROP YIELDS vary in inerease irorn ihe 1mm increase In sireh ereps as avoudo ro ml in eorri, 60-70% in allalia, was in wheai and lesser gains (Him ror low Crops sneh as lemiee All rhese inereases lailow wlndbmak esiaolishrnehi on exposed sires Elieeis are oi eenrse less in narnraliy sneirered siriiarions or areas ei nurmally low Wind speed However, niinosi all normal garden vegelahies ieneoroii, lumam. polaioi benehi greaily lmm Wind sheiier For lhis reason, a yawn! panern similar in rhai in figure no is ieeernrneiided lor sneh erops and wmdriflecud pasnires mun: 5.2- I I I LUWLEGUMINGUS wwnanux m CROP m spiral lea-um alum a minimal harm. oaui ii aim pmviaes u: m""" ré'ss rililm: 5.11 HURNCANES on CYCLONES Rim aim Inmnll. nail salons ai- mvsi wm: la iris wkwlm noes 01 he lawn/Esau all as isinpniliioadiio arernmaisd or [hum] hull! averysnuiaiedemoernimnmi ioraiiwind autumn; HURRICANB (mamas, TYPHOONS) Very sraole and sllllwan ulms near line eqnaror may prediiee iieree npdranghis 0! air ovzr warin oeeanie [30 areas, whldl over some days or weeks build up ro ine greal rising spirals ol humeanes A: ihese move slowly lusually ai 24—32 kin/hi iavss ihe oeeari (awards land, Wind speeds aronnd ihe vortex ean reaeh 125491 kin/ii, while wimln rhe vonex iisell a ‘ndal hulge‘ rises up lo 2,7 rn 19 leer) above sea level (Figure 511:, ihis warer oulge causes a lidal surge ai roasllines Voriiees revolve imirdockwlsn iii lho norihern hennsphere, dockwlse in ihe souihem, and inns coasral areas in ine nonh side have ihe highrfl wnier and wave levels in ihe norlhern heonsphere, and lo lhe small. side in ihe sourhern the eornliined elloeis of npldly {luduahng pressures, iidal bulge, wave and sea pllrup, and wave backwash ereare dcvlslilwn on masis Alihoirgh hnrrieanes eannoi persisi iar inland, as ihe sea resell sultan-s ihe earner, lhe inlense nms generaied do reach well inland |0 nood rivers and esiiinries, adding io the general desirueiion Wllh all erleers eolnblned in a "worst case“ oi high lides and prior rains, dtshudivz wave ariaek ean reaeh ens rn mun leeii ibuve nornial highrnde wave levels. As wind srrengih inereases at sea, wi Length also inmzses, so ihal norrnai wave minis arri ne al a per minnie m eaiiri Adam): candllions slow down la a irorrn Irequenry ul 5 per niiniile beloie year wrnds mese wider—spaced waves liavel list, are larger, and male severe backwash undermining or shorelines.