NASA satellite to map gypsy moth UNIVERSITY PARK - NASA’s earth-scanning satellite, passing over Pennsylvania this summer, will chart the defoliation of forests by gypsy moths. The new space age technique will combine computer analysis with in- V'-* Computer-printed map of Perry County, from 1981 Landsat data shows forests defoliated by gypsy moths in black areas with undefoliated forests in white. Gray areas are lands not covered by forests. ALKA-CULTURE™ or ALKA II Dairymen are challenged to develop feeding systems to capitalize on the high genetic ability of today's dairy cows. These systems include the use of high-moisture, fermented feeds, high-moisture, high-energy grains, and high-energy dry grain rations. These types of rations will pro duce more acid than cows can neutralize naturally. This increased acid production results in a lowering of rumen pH -- acidosis. Without adequate buffering, cows may eat less and use feed less efficiently. As a result, production can suffer. Over 80 years of service to the dairy and livestock producer. i youngfc ©1983 young's formation satellite. “Such scanning will gradually replace the present aerial sketch mapping of damage by gypsy moth caterpillars,” declared Brian J. Turner, co-director of the Office Livestock Nutritional Services from Landsat the f T *-mU* 's'*-? >'' . *** * « ’-'i? : '4Puf&3Bf4f a " ALKACULTURE and ALKA II are special combinations of buffering ingredients plus methionine and yeast culture. They buffer the rumen and other parts of the digestive tract to help maintain a strong appetite and increase fiber digestion to im prove fat test. Regular use of ALKA-CULTURE or ALKA II helps cows reach peak production sooner and helps keep pro duction higher throughout lactation. Your young's representative has all of the details on ALKA-CULTURE and ALKA 11. If you don't know the name of the representative nearest you, write or call young's, inc., P.O. Box 71, Roaring Spring, PA 16673 Phone; (814) 793-3701. for Remote Sensing of Earth Resources,'at Penn State. "Computer-generated maps can show two or three levels of defoliation in more detail, with greater consistency, and at least as accurately as those produced I » | t * Goddard Space Flight Center in nPTnlls)flAll Maryland and their Jet Propulsion UL/lUliailim Laboratory in California. "SE^tSJtnllea sylvania Department of En souare miles in a sinele imaee vironmental Resources. Sis advantage is enSed by die **. «** **». “ developing a computer’s ability to make un- f^ e “ 1 <! te ' ori t ente i “ appln B biased decisions, thus decreasing system f to e° ns f ruc ta forest human variations. The satellite ° f Was will pass over central Penn- with Landsat data showing sylvania on June 21. Overpasses a ® ac^mre d f rom 1 976 occur every 16 days. through 1979. Turner and associates developed Ten landsat scenes or sequences rules for a computer to followin to B et fuß coverage of determining whether an area had Pennsylvania. Accordingly, been defoliated or not. Information t * c i m fQ ues developed m lunar and from previous Landsat overpasses P* anetar y missions were used to showing no defoliation iriUbe fo ™ a compositemap of digital matchwi aeainst this summer’s computer data for the state, mateneo against mis summers Geographic distortions were . . , , . corrected so that the resultant set “Our first need was to develop a , , ( _TT e . - - r of data conformed to a whether f an area was tores Tor geographical grid known as sssz mid-summer looks remarkably like any other bare ground when pr^ ced a f or ei-nonforest of Ta?wS!2s-"SSSi Se^oSt! New information on magnetic itfr . ... . . tape wiU be acquired from Landsat The collection system is passes occurring at the peak of n ° “ n ? P L etely fo ? lpro TJ*™* defoliation. This information will noted ‘‘There is always the chance be registered by a computer onto a clouds will obscure some part forest map. Forested areas will of the state for all peak-defoliation then be analyzed by a computer to SfaSS determine the extent of defoliation. „ eeKS " “ ® uctl cases, me state The process will use rules set up by Bu ? au ,® f comparing ground observation on the old method of aenal sketch with data from satellites. mappmg,’’ he added Using green and red bands of the Tins year the Pennsylvania visible soectrum and two in the Bureau of Forestry is spraying a infrared the Penn Staters new tacterial insecticide know as overlay the images to create color- T * ac ‘SJ^s'ateliite’s enhanced pictures of the state. i Heavily defoliated areas show up m one color and health, forests In hSSnte "mSs can then be produced MtiaUy ’ Landsat JS~JSI St dSS m^ e and corresponding acreages. Such JSLtSTCSL. TO The new remote sensing university’s computer and image orocedure erew out of a three-vear analysis facihties will be used. In State Office forßemote Sensing of wlU . be able t ° condu< * Earth Resources. Cooperating and r ° ut . lne . d ‘i V 1 ° ° were scientists from NASA’s assessments from satellite data. Ip Lancaster Fanning, Saturday, June 18,1983-A3l
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