<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.EmailStyle18
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 70.85pt 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><a name="_Hlk89782604"></a><a name="_Hlk41995074"></a><a name="_Hlk41470923"></a><a name="_Hlk20313133"></a><a name="_Hlk87964136"><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'>Vabimo vas na predavanji ob letošnjih Stefanovih dnevih, ki bosta <strong><span style='font-family:"Calibri",sans-serif;color:red'>v ponedeljek, 21. marca 2022, ob 13:05 </span></strong><span style='color:red'>v Veliki predavalnici Instituta »Jožef Stefan«</span> na Jamovi cesti 39 v Ljubljani.<o:p></o:p></span></span></span></span></a></p><p class=MsoNormal><span style='mso-bookmark:_Hlk87964136'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'>Predavanji lahko spremljate tudi na TV IJS kanalu na spletnem naslovu </span></span></span></span></span><a href="http://tv.ijs.si"><span style='mso-bookmark:_Hlk87964136'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'>tv.ijs.si</span></span></span></span></span><span style='mso-bookmark:_Hlk87964136'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'></span></span></span></span></span></a><span style='mso-bookmark:_Hlk87964136'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'>.<o:p></o:p></span></span></span></span></span></p><p class=MsoNormal><span style='mso-bookmark:_Hlk87964136'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><strong><span style='font-family:"Calibri",sans-serif;font-weight:normal'><o:p> </o:p></span></strong></span></span></span></span></span></p><p class=MsoNormal><span style='mso-bookmark:_Hlk87964136'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'>Napovednik predavanj najdete tudi na naslovu </span></span></span></span></span><a href="http://www.ijs.si/ijsw/Koledar_prireditev"><span style='mso-bookmark:_Hlk87964136'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'>http://www.ijs.si/ijsw/Koledar_prireditev</span></span></span></span></span><span style='mso-bookmark:_Hlk87964136'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'></span></span></span></span></span></a><span style='mso-bookmark:_Hlk87964136'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'>, posnetke preteklih predavanj<span style='color:blue'> </span>pa na </span></span></span></span></span><a href="https://bit.ly/2YH8LYk"><span style='mso-bookmark:_Hlk87964136'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'>Arhiv TV IJS</span></span></span></span></span><span style='mso-bookmark:_Hlk87964136'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'></span></span></span></span></span></a><span style='mso-bookmark:_Hlk87964136'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'> in </span></span></span></span></span><a href="http://videolectures.net/kolokviji_ijs"><span style='mso-bookmark:_Hlk87964136'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'>http://videolectures.net/kolokviji_ijs</span></span></span></span></span><span style='mso-bookmark:_Hlk87964136'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'></span></span></span></span></span></a><span style='mso-bookmark:_Hlk87964136'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'>.</span></span></span></span></span><span style='mso-bookmark:_Hlk87964136'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='font-size:12.0pt;mso-fareast-language:SL'><o:p></o:p></span></span></span></span></span></span></p><span style='mso-bookmark:_Hlk87964136'></span><p class=MsoNormal style='margin-bottom:12.0pt'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<a name="_Hlk57188111"></a><a name="_Hlk57031912"></a><a name="_Hlk57187882"><span style='mso-bookmark:_Hlk57031912'><span style='mso-bookmark:_Hlk57188111'><b><o:p></o:p></b></span></span></a></span></span></span></span></p><span style='mso-bookmark:_Hlk57031912'></span><span style='mso-bookmark:_Hlk57187882'></span><p class=MsoNormal><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57188111'><b><span lang=SL>p</span>rof. dr. Griša Močnik </b></span></span></span></span></span><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57188111'><b><span lang=SL><o:p></o:p></span></b></span></span></span></span></span></p><p class=MsoNormal><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57188111'><i>Univerza v Novi Gorici, Haze Instruments d.o.o., Institut “Jožef Stefan”<o:p></o:p></i></span></span></span></span></span></p><p class=MsoNormal><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57188111'><i><o:p> </o:p></i></span></span></span></span></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57188111'><b><span style='font-size:14.0pt;color:#202020'>Absorpcija svetlobe v aerosolih vpliva na podnebje – kako to merimo?</span></b></span></span></span></span></span><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57188111'><b><span lang=SL style='font-size:14.0pt;color:#202020'><o:p></o:p></span></b></span></span></span></span></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57188111'><span style='font-size:12.0pt'><o:p> </o:p></span></span></span></span></span></span></p><span style='mso-bookmark:_Hlk57188111'></span><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><a name="_Hlk57031873">Aerosoli, ki absorbirajo sončno svetlobo, pomembno vplivajo na podnebje. V atmosferi preživijo nekaj tednov, vendar ozračje segrevajo skoraj toliko kot ogljikov dioksid, ki v atmosferi preživi desetletja. Podnebni modeli podcenjujejo vpliv absorbirajočih aerosolov. Za opis stanja našega planeta in za izboljšavo napovedne moči modelov so tako meritve ključnega pomena, saj predstavljajo vhodne podatke za podnebne modele. Pokazal bom, kako na preproste načine izmerimo absorpcijo aerosolov; kako lahko z meritvami z baloni in majhnimi letali izmerimo njihovo porazdelitev v atmosferi; kakšna je odvisnost absorpcije od valovne dolžine in kaj nam to pove o sestavi in mešanicah aerosolov; kakšne so hitrosti segrevanja ozračja za različne tipe aerosolov in kako na segrevanje vplivajo oblaki; in zakaj potrebujemo nove metode za take meritve, da bi zmanjšali negotovosti.</a></span></span></span></span><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57031873'><span lang=SL><o:p></o:p></span></span></span></span></span></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57031873'><o:p> </o:p></span></span></span></span></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57031873'><o:p> </o:p></span></span></span></span></span></p><p class=MsoNormal><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57031873'><b><span lang=SL>d</span>oc. dr. Luka Drinovec<o:p></o:p></b></span></span></span></span></span></p><p class=MsoNormal><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57031873'><i>Univerza v Novi Gorici, Institut “Jožef Stefan”, Haze Instruments d.o.o.<o:p></o:p></i></span></span></span></span></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57031873'><o:p> </o:p></span></span></span></span></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57031873'><b><span style='font-size:14.0pt;color:#202020'>Merjenje absorpcije aerosolov s foto-termičnim interferometrom <o:p></o:p></span></b></span></span></span></span></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57031873'><span style='font-size:12.0pt'><o:p> </o:p></span></span></span></span></span></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57031873'>Da bi izmerili prispevke absorbirajočih aerosolov na podnebje, potrebujemo neposredne meritve njihovega absorpcijskega koeficienta. Aerosoli se v atmosferi starajo, in sicer se absorbirajoča jedra postopoma oplaščijo s prozornim ovojem, kar ojača absorpcijo. Meritve absorpcijskega koeficienta so bile v preteklosti zelo negotove, modeli pa pojava staranja niso kvantitativno opisovali. Predstavil bom nov inštrument za meritve absorpcijskega koeficienta aerosolov pri dveh valovnih dolžinah. Aerosoli v zraku, ki ga črpamo skozi merilno celico, absorbirajo svetlobo dveh močnih laserjev, zaradi česar se segrejejo. S tem segrejejo zrak okoli sebe, temu pa se zato nekoliko spremenita gostota in lomni količnik. Spremembo lomnega količnika izmerimo kot spremembo optične poti v interferometru, s čimer izmerimo absorpcijski koeficient. Foto-termični interferometer smo sledljivo kalibrirali. Pokazal bom meritve laboratorijskih vzorcev in zunanjega zraka ter meritve ojačanja absorpcije zaradi oplaščenja.<o:p></o:p></span></span></span></span></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57031873'><o:p> </o:p></span></span></span></span></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57031873'><o:p> </o:p></span></span></span></span></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><span style='mso-bookmark:_Hlk57031873'>Predavanji bosta v slovenščini.<o:p></o:p></span></span></span></span></span></p><span style='mso-bookmark:_Hlk57031873'></span><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><span style='mso-bookmark:_Hlk20313133'><span style='mso-bookmark:_Hlk41470923'><span style='mso-bookmark:_Hlk41995074'><span style='mso-bookmark:_Hlk89782604'><strong><span style='font-family:"Calibri",sans-serif;color:red'>Lepo vabljeni!</span></strong></span></span></span></span><span style='mso-bookmark:_Hlk89782604'><strong><span style='font-family:"Calibri",sans-serif;color:red'><o:p></o:p></span></strong></span></p><span style='mso-bookmark:_Hlk89782604'></span><p class=MsoNormal><strong><span style='font-family:"Calibri",sans-serif;font-weight:normal'><o:p> </o:p></span></strong></p><p class=MsoNormal><span lang=SL style='font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:#1000'><o:p> </o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>