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<!DOCTYPE html> <html lang="en"> <head><script type='text/javascript' src='//cdnjs.cloudflare.com/ajax/libs/yui/3.6.0/yui/yui-min.js'></script><script type='text/javascript' src='//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js'></script><script type='text/javascript' src='https://assets.adobedtm.com/4a848ae9611a/d0e96722185b/launch-d525bb0064d8.min.js'></script><script type='text/javascript' src=/assets/nr_browser_production.js></script>  <meta charset="utf-8"> <meta name="viewport" content="width=device-width"> <title> "On Atmospheric Lapse Rates" by Nihad E. Daidzic </title>  <meta itemprop="name" content="On Atmospheric Lapse Rates"> <meta property="og:title" content="On Atmospheric Lapse Rates"> <meta name="twitter:title" content="On Atmospheric Lapse Rates"> <meta property="article:author" content="Nihad E Daidzic"> <meta name="author" content="Nihad E Daidzic"> <meta name="robots" content="noodp, noydir"> <meta name="description" content="We have derived and summarized and most important atmospheric temperature lapse rates. ALRs essentially govern vertical atmospheric air stability and creation of some cloud types. The sensitivity analysis of various atmospheric lapse rates and their dependence on actual ideal-gas air properties and gravitational attraction was conducted for the first time to the best of our knowledge. SALR, which has DALR as the upper asymptote, showed steepest decrease at around 9 degrees Celsius then flattening out and apparently approaching another asymptotic solution which has not been investigated as it falls outside of the terrestrial temperature range. ISA lapse rates are adopted atmospheric standards and hence do not depend on actual conditions. We have also analyzed the dependence of DPLR on air temperatures and moisture content. Understanding thermodynamics and dynamics of atmospheric moist air and phase transitions is of fundamental importance for safety and economy of flight operations and aircraft performance."> <meta itemprop="description" content="We have derived and summarized and most important atmospheric temperature lapse rates. ALRs essentially govern vertical atmospheric air stability and creation of some cloud types. The sensitivity analysis of various atmospheric lapse rates and their dependence on actual ideal-gas air properties and gravitational attraction was conducted for the first time to the best of our knowledge. SALR, which has DALR as the upper asymptote, showed steepest decrease at around 9 degrees Celsius then flattening out and apparently approaching another asymptotic solution which has not been investigated as it falls outside of the terrestrial temperature range. ISA lapse rates are adopted atmospheric standards and hence do not depend on actual conditions. We have also analyzed the dependence of DPLR on air temperatures and moisture content. Understanding thermodynamics and dynamics of atmospheric moist air and phase transitions is of fundamental importance for safety and economy of flight operations and aircraft performance."> <meta name="twitter:description" content="We have derived and summarized and most important atmospheric temperature lapse rates. ALRs essentially govern vertical atmospheric air stability and creation of some cloud types. The sensitivity analysis of various atmospheric lapse rates and their dependence on actual ideal-gas air properties and gravitational attraction was conducted for the first time to the best of our knowledge. SALR, which has DALR as the upper asymptote, showed steepest decrease at around 9 degrees Celsius then flattening out and apparently approaching another asymptotic solution which has not been investigated as it falls outside of the terrestrial temperature range. ISA lapse rates are adopted atmospheric standards and hence do not depend on actual conditions. We have also analyzed the dependence of DPLR on air temperatures and moisture content. Understanding thermodynamics and dynamics of atmospheric moist air and phase transitions is of fundamental importance for safety and economy of flight operations and aircraft performance."> <meta property="og:description" content="We have derived and summarized and most important atmospheric temperature lapse rates. ALRs essentially govern vertical atmospheric air stability and creation of some cloud types. The sensitivity analysis of various atmospheric lapse rates and their dependence on actual ideal-gas air properties and gravitational attraction was conducted for the first time to the best of our knowledge. SALR, which has DALR as the upper asymptote, showed steepest decrease at around 9 degrees Celsius then flattening out and apparently approaching another asymptotic solution which has not been investigated as it falls outside of the terrestrial temperature range. ISA lapse rates are adopted atmospheric standards and hence do not depend on actual conditions. We have also analyzed the dependence of DPLR on air temperatures and moisture content. Understanding thermodynamics and dynamics of atmospheric moist air and phase transitions is of fundamental importance for safety and economy of flight operations and aircraft performance."> <meta name="keywords" content="Temperature lapse rates, moist air, vertical air stability, dew point, sensitivity analysis"> <meta name="bepress_citation_journal_title" content="International Journal of Aviation, Aeronautics, and Aerospace"> <meta name="bepress_citation_firstpage" content="2"> <meta name="bepress_citation_author" content="Daidzic, Nihad E"> <meta name="bepress_citation_author_institution" content="AAR Aerospace Consulting, LLC"> <meta name="bepress_citation_title" content="On Atmospheric Lapse Rates"> <meta name="bepress_citation_date" content="2019"> <meta name="bepress_citation_volume" content="6"> <meta name="bepress_citation_issue" content="4">   <meta name="bepress_citation_pdf_url" content="https://commons.erau.edu/cgi/viewcontent.cgi?article=1374&context=ijaaa"> <meta name="bepress_citation_abstract_html_url" content="https://commons.erau.edu/ijaaa/vol6/iss4/2"> <meta name="bepress_citation_doi" content="https://doi.org/10.15394/ijaaa.2019.1374"> <meta name="bepress_citation_issn" content="2374-6793"> <meta name="bepress_citation_online_date" content="2019/6/19"> <meta name="viewport" content="width=device-width">  <meta name="twitter:card" content="summary">  <meta property="og:type" content="article"> <meta property="og:url" content="https://commons.erau.edu/ijaaa/vol6/iss4/2"> <meta property="og:site_name" content="Scholarly Commons">  <script type="text/javascript"> (function(e,t){var n=e.amplitude||{_q:[],_iq:{}};var r=t.createElement("script") ;r.type="text/javascript";r.async=true ;r.src="https://cdn.amplitude.com/libs/amplitude-4.5.2-min.gz.js" ;r.integrity="5ceGNbvkytO+PTI82JRl6GwJjVCw6k79kP4le5L5/m0Zny1P7taAF6YVvC4z4Pgj" ;r.onload=function(){if(e.amplitude.runQueuedFunctions){ e.amplitude.runQueuedFunctions()}else{ console.log("[Amplitude] Error: could not load SDK")}} ;var i=t.getElementsByTagName("script")[0];i.parentNode.insertBefore(r,i) ;function s(e,t){e.prototype[t]=function(){ this._q.push([t].concat(Array.prototype.slice.call(arguments,0)));return this}} var o=function(){this._q=[];return this} ;var a=["add","append","clearAll","prepend","set","setOnce","unset"] ;for(var u=0;u<a.length;u++){s(o,a[u])}n.Identify=o;var c=function(){this._q=[] ;return this} ;var l=["setProductId","setQuantity","setPrice","setRevenueType","setEventProperties"] ;for(var p=0;p<l.length;p++){s(c,l[p])}n.Revenue=c ;var d=["init","logEvent","logRevenue","setUserId","setUserProperties","setOptOut","setVersionName","setDomain","setDeviceId","setGlobalUserProperties","identify","clearUserProperties","setGroup","logRevenueV2","regenerateDeviceId","groupIdentify","logEventWithTimestamp","logEventWithGroups","setSessionId","resetSessionId"] ;function v(e){function t(t){e[t]=function(){ e._q.push([t].concat(Array.prototype.slice.call(arguments,0)))}} for(var n=0;n<d.length;n++){t(d[n])}}v(n);n.getInstance=function(e){ e=(!e||e.length===0?"$default_instance":e).toLowerCase() ;if(!n._iq.hasOwnProperty(e)){n._iq[e]={_q:[]};v(n._iq[e])}return n._iq[e]} ;e.amplitude=n})(window,document); 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Daidzic</strong>, <em>AAR Aerospace Consulting, LLC</em></a><a rel="nofollow" href="https://network.bepress.com/api/follow/subscribe?user=YzQ2ZWUyMGVkODcyOGE4Zg%3D%3D&institution=ODRmM2E2NTQwMWFjY2Q4OA%3D%3D&format=html" data-follow-set="user:YzQ2ZWUyMGVkODcyOGE4Zg== institution:ODRmM2E2NTQwMWFjY2Q4OA==" title="Follow Nihad E. Daidzic" class="btn followable">Follow</a><br /> </p></div> <div class='clear'></div> <div id='abstract' class='element'> <h2 class='field-heading'>Abstract</h2> <p>We have derived and summarized and most important atmospheric temperature lapse rates. ALRs essentially govern vertical atmospheric air stability and creation of some cloud types. The sensitivity analysis of various atmospheric lapse rates and their dependence on actual ideal-gas air properties and gravitational attraction was conducted for the first time to the best of our knowledge. SALR, which has DALR as the upper asymptote, showed steepest decrease at around 9 degrees Celsius then flattening out and apparently approaching another asymptotic solution which has not been investigated as it falls outside of the terrestrial temperature range. ISA lapse rates are adopted atmospheric standards and hence do not depend on actual conditions. We have also analyzed the dependence of DPLR on air temperatures and moisture content. Understanding thermodynamics and dynamics of atmospheric moist air and phase transitions is of fundamental importance for safety and economy of flight operations and aircraft performance.</p> </div> <div class='clear'></div> <div id='recommended_citation' class='element'> <h2 class='field-heading'>Scholarly Commons Citation</h2>  <p class="citationhangingindent"> Daidzic, N. E. (2019). On Atmospheric Lapse Rates. <em> International Journal of Aviation, Aeronautics, and Aerospace, 6</em>(4). 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