var response='success'; jQuery('#ad-event-feed-36351 .raweventdata').html("\u003cdiv class=\"feedevent\"\u003e\u003cdiv class=\"title\"\u003e\u003ca href=\"http://calendar.swarthmore.edu/calendar/EventList.aspx?view=EventDetails&eventidn=16306&information_id=44180&type=&syndicate=syndicate\" target=\"blank\" \u003ePhysics Colloquium: Manjit Kaur, Swarthmore College\u003c/a\u003e\u003c/div\u003e\u003cdiv class=\"regspaces\"\u003e\u003c/div\u003e\u003cdiv class=\"enddate\"\u003e09/22/2017\u003c/div\u003e\u003cdiv class=\"starttime\"\u003e12:30 PM\u003c/div\u003e\u003cdiv class=\"endtime\"\u003e2:00 PM\u003c/div\u003e\u003cdiv class=\"recurrence\"\u003e\u003c/div\u003e\u003cdiv class=\"description\"\u003e\u003cstrong\u003e\u003cspan style=\"font-family: \u0027Times New Roman\u0027; font-size: 16px;\"\u003ePhysics and Astronomy Colloquium\r\n\u003cbr /\u003e\r\n\u003cbr /\u003e\r\nManjit Kaur, Post-Doctoral Researcher \u003cbr /\u003e\r\nPhysics and Astronomy Dept., Swarthmore College\u003c/span\u003e\u003c/strong\u003e\u003cspan style=\"font-family: \u0027Times New Roman\u0027; font-size: 14px;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e\r\n\u003cbr /\u003e\r\n\u003cbr /\u003e\r\n\u003c/span\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003e\u003cspan style=\"font-size: 16px;\"\u003eMagnetothermodynamics: Measuring the Equations of State of a Magnetized Plasma\r\n\u003c/span\u003e\u003c/em\u003e\u003c/span\u003e\u003cbr /\u003e\r\n\u003cbr /\u003e\r\nWe have explored the thermodynamics of compressed magnetized plasmas in laboratory experiments and we call these studies “magnetothermodynamics\". The experiments are carried out in the linear Swarthmore Spheromak eXperiment (SSX) device. In this device, a magnetized plasma source is located at one end of the device and at the other end, a closed conducting can is installed. We generate parcels of magnetized, relaxed plasma and observe their compression against the end wall of the conducting can. The plasma parameters such as plasma density, temperature, and magnetic field are measured during compression, using HeNe laser interferometry, ion Doppler spectroscopy and a linear B-dot probe array, respectively. To identify the instances of ion heating during compression, a PV diagram is constructed using measured density, temperature, and volume of the magnetized plasma. Various equations of state of the magnetized plasma are analyzed to estimate the adiabatic nature of the compressed plasma.\r\n\u003cbr /\u003e\r\n\u003cbr /\u003e\r\nThe colloquium will start at 12:30 pm in Science Center 199. A pizza lunch will be provided for those attending starting at 12:20 pm.\u003c/span\u003e\u003c/div\u003e\u003cdiv class=\"contact\"\u003ePhysics & Astronomy Dept., physics@swarthmore.edu, 610-328-8258\u003c/div\u003e\u003cdiv class=\"location\"\u003eScience Center : Science Center 199 - Cunniff Hall\u003c/div\u003e\u003cdiv class=\"image\"\u003e\u003cimg src=\"http://calendar.swarthmore.edu/calendar/displaymedia.aspx?whatToDo=picture&id=4678\" border=\"0\" alt=\"manjit\" /\u003e\u003c/div\u003e\u003cdiv class=\"thumbnail\"\u003e\u003cimg src=\"http://calendar.swarthmore.edu/calendar/displaymedia.aspx?whatToDo=picture&thumbnail=thumbnail&thumbnailwidth=100&id=4678&square=N\" border=\"0\" alt=\"manjit\" /\u003e\u003c/div\u003e\u003cdiv class=\"category\"\u003eAcademic Departments & Programs, Public Events\u003c/div\u003e\u003cdiv class=\"extrainfo\"\u003e\u003c/div\u003e\u003cdiv class=\"sponsor\"\u003e\u003c/div\u003e\u003cdiv class=\"opento\"\u003eThe Public\u003c/div\u003e\u003cdiv class=\"startdate\"\u003e09/22/2017\u003c/div\u003e\u003c/div\u003e\u003cdiv class=\"feedevent\"\u003e\u003cdiv class=\"title\"\u003e\u003ca href=\"http://calendar.swarthmore.edu/calendar/EventList.aspx?view=EventDetails&eventidn=16476&information_id=44528&type=&syndicate=syndicate\" target=\"blank\" \u003ePhysics & Astronomy Colloquium - Timothy Cronin \u002706, Atmospheric Science at MIT\u003c/a\u003e\u003c/div\u003e\u003cdiv class=\"regspaces\"\u003e\u003c/div\u003e\u003cdiv class=\"enddate\"\u003e10/06/2017\u003c/div\u003e\u003cdiv class=\"starttime\"\u003e12:30 PM\u003c/div\u003e\u003cdiv class=\"endtime\"\u003e2:00 PM\u003c/div\u003e\u003cdiv class=\"recurrence\"\u003e\u003c/div\u003e\u003cdiv class=\"description\"\u003e\u003cspan style=\"font-family: Verdana; font-size: 16px;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-family: \u0027Times New Roman\u0027;\"\u003ePhysics and Astronomy Colloquium\u003cbr /\u003e\r\n\u003cbr /\u003e\r\nTimothy Cronin \u002706\u003cspan style=\"font-size: 12px;\"\u003e\u003cbr /\u003e\r\n\u003c/span\u003e\u003c/span\u003e\u003c/strong\u003e\u003c/span\u003e\u003cstrong style=\"font-size: 16px;\"\u003e\u003cspan style=\"font-family: \u0027Times New Roman\u0027;\"\u003eAtmospheric Science, MIT\u003c/span\u003e\u003c/strong\u003e\u003cspan style=\"font-family: Verdana; font-size: 16px;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-family: \u0027Times New Roman\u0027;\"\u003e\u003cbr /\u003e\r\n\u003c/span\u003e\u003c/strong\u003e\u003c/span\u003e\u003cspan style=\"font-family: Verdana; font-size: 18px;\"\u003e\u003cspan size=\"4\" style=\"font-family: \u0027Times New Roman\u0027; font-size: 16px;\"\u003e\u003cbr /\u003e\r\n\u003c/span\u003e\u003cspan style=\"font-family: \u0027Times New Roman\u0027; font-size: 16px;\"\u003e\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003eWhat Can We Still Learn About Climate from Radiative-Convective Equilibrium?\u003c/span\u003e\u003c/em\u003e\u003cbr /\u003e\r\n\u003cspan style=\"font-size: 16px;\"\u003e\u003cbr /\u003e\r\n\u003c/span\u003e\u003c/span\u003e\u003c/span\u003e\u003cspan style=\"font-size: 16px; font-family: \u0027Times New Roman\u0027;\"\u003e\r\n\u003cstyle type=\"text/css\"\u003e\r\n p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 16.0px Optima; color: #000000}\r\n p.p2 {margin: 0.0px 0.0px 0.0px 0.0px; font: 16.0px Optima; color: #000000; min-height: 19.0px}\r\n\u003c/style\u003e\r\n\u003c/span\u003e\r\n\u003cp class=\"p1\" style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: \u0027Times New Roman\u0027; font-size: 16px;\"\u003eUnderstanding Earth’s climate, and how it may change due to the significant human impact on atmospheric composition, is a key scientific challenge of the 21st century. A large fraction of the uncertainty in predictions of climate change is related to how clouds and their impact on global energy balance may change with warming. Much of this problem in turn owes to our inability to resolve cloud-scale motions (~1km in size) in global climate models, which have grid boxes ~100 km in horizontal size. In this talk, I will focus on the idealized model configuration of radiative-convective equilibrium, and how it is helping us to understand cloud feedbacks on climate change. \u003cspan class=\"Apple-converted-space\"\u003e \u003c/span\u003e\u003c/span\u003e\u003c/p\u003e\r\n\u003cp class=\"p2\" style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: \u0027Times New Roman\u0027; font-size: 16px;\"\u003e\u003cbr /\u003e\r\n\u003c/span\u003e\u003c/p\u003e\r\n\u003cp class=\"p1\" style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: \u0027Times New Roman\u0027; font-size: 16px;\"\u003eRadiative-convective equilibrium (RCE) is the statistical state of the atmosphere and surface that is set by the overall climatic energy balance between absorbed sunlight and emitted infrared radiation, assuming a horizontally uniform surface and horizontally uniform incident sunlight. Although RCE has been used as an idealization of the climate system for over 50 years, increasing computational power in the last two decades has allowed for simulation of RCE that explicitly represents the atmospheric motions that form clouds. One intriguing finding of these simulations is that under some conditions, clouds can undergo a transition from randomly dispersed to highly aggregated. Aggregation of clouds alters the atmospheric energy balance and dries the atmosphere overall, possibly affecting both cloud and water vapor feedbacks on warming. I will talk about simulations and analysis that assess how aggregation of clouds in RCE may affect climate sensitivity, as well as bottom-up theoretical work to understand aggregation of clouds as a linear instability of RCE.\u003cspan class=\"Apple-converted-space\"\u003e  \u003cbr /\u003e\r\n\u003cbr /\u003e\r\nThe colloquium will start at 12:30 pm in Science Center 199. A pizza lunch will be provided for those attending starting at 12:20 pm.\u003cbr /\u003e\r\n  \u003cbr /\u003e\r\n\u003c/span\u003e\u003c/span\u003e\u003cspan style=\"font-family: \u0027Times New Roman\u0027; font-size: 16px;\"\u003eFriday, October 6, 2017, \u003c/span\u003e\u003cspan style=\"font-family: \u0027Times New Roman\u0027; font-size: 16px;\"\u003e12:30 pm, SC 199\u003c/span\u003e\u003c/p\u003e\u003c/div\u003e\u003cdiv class=\"contact\"\u003ePhysics & Astronomy, physics@swarthmore.edu, (610) 328-8258\u003c/div\u003e\u003cdiv class=\"location\"\u003eScience Center : Science Center 199 - Cunniff Hall\u003c/div\u003e\u003cdiv class=\"image\"\u003e\u003cimg src=\"http://calendar.swarthmore.edu/calendar/displaymedia.aspx?whatToDo=picture&id=4754\" border=\"0\" alt=\"Timothy Cronin \u002706\" /\u003e\u003c/div\u003e\u003cdiv class=\"thumbnail\"\u003e\u003cimg src=\"http://calendar.swarthmore.edu/calendar/displaymedia.aspx?whatToDo=picture&thumbnail=thumbnail&thumbnailwidth=100&id=4754&square=N\" border=\"0\" alt=\"Timothy Cronin \u002706\" /\u003e\u003c/div\u003e\u003cdiv class=\"category\"\u003eAcademic Departments & Programs, Public Events\u003c/div\u003e\u003cdiv class=\"extrainfo\"\u003e\u003c/div\u003e\u003cdiv class=\"sponsor\"\u003e\u003c/div\u003e\u003cdiv class=\"opento\"\u003eThe Public\u003c/div\u003e\u003cdiv class=\"startdate\"\u003e10/06/2017\u003c/div\u003e\u003c/div\u003e\u003cdiv class=\"feedevent\"\u003e\u003cdiv class=\"title\"\u003e\u003ca href=\"http://calendar.swarthmore.edu/calendar/EventList.aspx?view=EventDetails&eventidn=14316&information_id=39361&type=&syndicate=syndicate\" target=\"blank\" \u003eObservatory Open House\u003c/a\u003e\u003c/div\u003e\u003cdiv class=\"regspaces\"\u003e\u003c/div\u003e\u003cdiv class=\"enddate\"\u003e10/10/2017\u003c/div\u003e\u003cdiv class=\"starttime\"\u003e9:00 PM\u003c/div\u003e\u003cdiv class=\"endtime\"\u003e10:00 PM\u003c/div\u003e\u003cdiv class=\"recurrence\"\u003eThis event recurs on a custom schedule.\u003c/div\u003e\u003cdiv class=\"description\"\u003eThe Physics and Astronomy department hosts a telescope open house on the second Tuesday of each month at the Peter van de Kamp Observatory on the roof of the Science Center. Directions are available at \u003ca target=\"blank\" href=\"http://www.swarthmore.edu/peter-van-de-kamp-observatory/directions\"\u003ewww.swarthmore.edu/peter-van-de-kamp-observatory/directions\u003c/a\u003e. The open house hours are 8:00 p.m. to 9:00 p.m. when it is standard time and 9:00 p.m. to 10:00 p.m. when it is daylight savings time. If the weather is bad, the open house will be cancelled and an announcement will be posted on the Physics and Astronomy department website and the College calendar.\r\nCheck \u003ca target=\"blank\" href=\"http://www.swarthmore.edu/physics\"\u003ewww.swarthmore.edu/physics\u003c/a\u003e the day of the open house if the weather is questionable.\u003c/div\u003e\u003cdiv class=\"contact\"\u003eCarolyn Warfel, physics@swarthmore.edu, 610-328-8258\u003c/div\u003e\u003cdiv class=\"location\"\u003eScience Center : Science Center Peter van de Kamp Observatory\u003c/div\u003e\u003cdiv class=\"image\"\u003e\u003cimg src=\"http://calendar.swarthmore.edu/calendar/displaymedia.aspx?whatToDo=picture&id=3990\" border=\"0\" alt=\"observatory\" /\u003e\u003c/div\u003e\u003cdiv class=\"thumbnail\"\u003e\u003cimg src=\"http://calendar.swarthmore.edu/calendar/displaymedia.aspx?whatToDo=picture&thumbnail=thumbnail&thumbnailwidth=100&id=3990&square=N\" border=\"0\" alt=\"observatory\" /\u003e\u003c/div\u003e\u003cdiv class=\"category\"\u003eAcademic Departments & Programs\u003c/div\u003e\u003cdiv class=\"extrainfo\"\u003e\u003c/div\u003e\u003cdiv class=\"sponsor\"\u003e\u003c/div\u003e\u003cdiv class=\"opento\"\u003e\u003c/div\u003e\u003cdiv class=\"startdate\"\u003e10/10/2017\u003c/div\u003e\u003c/div\u003e")