<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div data-marker="__QUOTED_TEXT__"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><br><br><br><div><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><br><div><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="text-align: center;"><span style="color: #ff0000;"><em><span style="font-size: 14pt;">Reminder</span></em></span></div><div style="text-align: center;"><span style="color: #ff0000;"><em><span style="font-size: 14pt;"><br></span></em></span></div><div style="text-align: center;"><span style="color: #ff0000;"><em><span style="font-size: 14pt;">Today</span></em></span></div><div style="text-align: center;"><span style="color: #ff0000;"><em><span style="font-size: 14pt;"> </span></em></span><br></div><div style="text-align: center;"><span style="color: #ff0000;"><em><span style="font-size: 14pt;">Last Seminar for the Spring Quarter</span></em></span></div><div><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="text-align: center;"><br></div><div><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000; text-align: center;"><div><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><br><div><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="text-align: center;"><span style="font-size: 14pt; color: #333399;">SPACE PHYSICS SEMINAR</span></div><div><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000; text-align: center;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><br><div><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><br><div><div dir="ltr"><div style="font-size: 12pt; font-family: 'Calibri'; color: #000000;"><div style="font-size: small; text-decoration: none; font-family: 'Calibri'; font-weight: normal; color: #000000; font-style: normal; display: inline;"><div dir="ltr"><div style="font-size: 12pt; font-family: 'Calibri'; color: #000000;"><div style="font-size: small; text-decoration: none; font-family: 'Calibri'; font-weight: normal; color: #000000; font-style: normal; display: inline;"><p style="color: #000000; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial; margin: 0px; font-size: 12pt; font-family: 'times new roman', serif; text-align: center;"><span style="color: #333399; font-family: ArialMT; font-size: 14pt; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: center; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial; float: none; display: inline !important;">USE THE CCLE ZOOM LINK PROVIDED BELOW</span><br></p><p style="color: #000000; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial; margin: 0px; font-size: 12pt; font-family: 'times new roman', serif; text-align: center;"><span style="color: #333399; font-family: ArialMT; font-size: 14pt; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: center; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial; float: none; display: inline !important;"><br></span></p><p style="color: #000000; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial; margin: 0px; font-size: 12pt; font-family: 'times new roman', serif; text-align: center;"><br></p><p style="color: #000000; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial; margin: 0px; font-size: 16px; font-family: 'times new roman', serif; text-align: center; background-color: #ffffff;"><span style="font-family: calibri, sans-serif; color: #0000ff; font-size: 18pt;"><a href="https://ccle.ucla.edu/mod/zoom/view.php?id=2939559" id="LPlnk188678" target="_blank" style="color: #0000ff; text-decoration: underline; cursor: pointer; font-family: calibri, arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff;">https://ccle.ucla.edu/mod/zoom/view.php?id=2939559</a></span></p><p style="color: #000000; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial; margin: 0px; font-size: 16px; font-family: 'times new roman', serif; text-align: center; background-color: #ffffff;"><span style="font-family: calibri, sans-serif; color: #333399; font-size: 18pt;"><br></span></p><p style="color: #000000; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial; margin: 0px; font-size: 16px; font-family: 'times new roman', serif; text-align: center; background-color: #ffffff;"><span style="font-family: calibri, sans-serif; color: #333399; font-size: 18pt;"><br>Date/Time: June 5, 2020/ 03:30 PM Pacific Time (US and Canada)</span></p><p style="color: #000000; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial; margin: 0px; font-size: 12pt; font-family: 'times new roman', serif; text-align: center;"><br></p><p style="margin: 0px; font-size: 12pt; font-family: 'Times New Roman', serif; text-align: center;"><span style="color: #333399; font-size: 18pt;"><br></span></p><p class="MsoNormal" style="margin: 0in 0in 0pt; line-height: normal; mso-outline-level: 3;" align="center"><span style="color: #333399; font-size: 18pt;"><strong>SPACE PHYSICS SEMINAR</strong></span></p><p class="MsoNormal" style="margin: 0in 0in 0pt; line-height: normal;" align="center"><span style="color: #333399; font-size: 18pt;"><strong>DEPARTMENT OF EARTH, PLANETARY, AND SPACE SCIENCES</strong></span></p><p class="MsoNormal" style="margin: 0in 0in 0pt; line-height: normal;" align="center"><span style="color: #333399; font-size: 18pt;"><strong>DEPARTMENT OF ATMOSPHERIC AND OCEANIC SCIENCES</strong></span></p><p class="MsoNormal" style="margin: 0in 0in 0pt; line-height: normal;" align="center"><span style="color: #333399; font-size: 18pt;"><strong>UNIVERSITY OF CALIFORNIA, LOS ANGELES</strong></span></p><p class="MsoNormal" style="margin: 0in 0in 0pt; line-height: normal;" align="center"><span style="color: #333399; font-size: 18pt;"><strong>(AOS M275B, EPSS M288B)</strong></span></p><p class="MsoNormal" style="margin: 0in 0in 0pt; line-height: normal;" align="center"><span style="color: #333399; font-size: 18pt;"><strong><br></strong></span></p><p class="MsoNormal" style="margin: 0in 0in 0pt; line-height: normal;" align="center"><span style="color: #333399; font-size: 18pt;"><span style="mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt;"><span style="font-family: 'Times New Roman';"></span></span> </span></p><p style="text-align: center; margin: 0px;"><strong><span style="font-size: 14pt; color: #333399;"><span style="line-height: 115%;">Scientific Ballooning for Imaging</span><span style="line-height: 115%;"> Aurora under the Sun</span></span></strong></p><p style="text-align: center; margin: 0px;"><strong><span style="line-height: 115%; font-size: 14pt; color: #333399;">- The BALBOA Project: Then, Now, and Next</span></strong></p><p style="text-align: center; margin: 0px;"><strong><span style="line-height: 115%; font-size: 14pt; color: #333399;"><br></span></strong></p><h5 style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0.5rem; font-family: -apple-system, system-ui, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; font-weight: 500; line-height: 1.2; color: #495057; font-size: 1.17188rem; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><span style="color: #333399;"><strong>Xiaoyan Zhou</strong></span><br></h5><p style="text-align: center; margin: 0px;"><strong><span style="font-size: 14pt;"><em><span style="color: #333399;">Department of Earth, Planetary, and Space Sciences, UCLA</span></em></span></strong></p><div style="color: #000000; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial;"><br><br></div><div><p style="color: #000000; font-family: Calibri; font-size: small; font-variant-ligatures: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; margin: 0px; line-height: normal; text-align: left; background-color: #ffffff;"><span style="color: #333399;"><strong><span style="font-size: 14pt;">Abstract: More than 500 years ago, when Vasco Núñez de Balboa traveled to the New World, he must not have realized that his legacy would not only be cast in currency, but branded for space exploration. Our investigation and the pathfinder mission of BALloon-Based Observations for Sunlit Aurora is therefore named BALBOA, after this 15<sup>th</sup>-century Spanish explorer and conquistador. The auroral phenomenon is the most visible manifestation of the solar wind-magnetosphere-ionosphere coupling. It is the processes in dayside that initiate the solar wind energy and momentum input, and shape global dynamics. The scientific motivation of BALBOA is to understand dayside auroras, the auroral asymmetry between southern and northern hemispheres, and between dayside and nightside hemispheres/magnetospheres. Since 1892, when the first useful auroral image was obtained, auroral forms and their dynamics have been acquired only when the aurora is in darkness. However, technology development in the Space Age has widened our imagination, stimulated our courage, and granted us tools to challenge impossibilities. Barriers of imaging sunlit auroras are mainly due to the sunlight contamination from Rayleigh scattering, i.e., the sky is too bright to see aurora from the ground when the Sun is near and above horizon. Nevertheless, another fact brings us hope, which is that sky brightness decreases with increasing altitude and wavelength. The feasibility of imaging sunlit aurora from balloons was confirmed when the N2+ Meinel band around ~1110 nm was recorded during twilight that resembles the sky brightness at balloon altitude in Antarctica. This presentation briefly reviews dayside auroras measured from the ground and space, as well as their mechanisms; the recent and current status of the BALBOA project; and our short- and long-term plans.</span></strong></span><br></p></div><p class="MsoNormal" style="margin: 0in 0in 0pt; line-height: normal; text-align: left;" align="center"><span style="color: #333399;"><strong><span style="font-size: 14pt; background-color: #ffffff;"><br></span></strong></span></p><p class="MsoNormal" style="margin: 0in 0in 0pt; line-height: normal;" align="center"><span style="color: #333399; font-size: 14pt;"><strong>Friday June 5, 2020</strong></span></p><p class="MsoNormal" style="margin: 0in 0in 0pt; line-height: normal;" align="center"><span style="color: #333399; font-size: 14pt;"><strong><br></strong></span></p><p class="MsoNormal" style="margin: 0in 0in 10pt; line-height: normal; text-align: center;" align="center"><span style="color: #000080; font-size: 18pt;"><strong><span style="font-family: 'Times New Roman';"><i><span style="color: #333399; font-size: 14pt;">In-charge: C. T. Russell</span><span style="mso-fareast-font-family: 'Times New Roman';"> </span></i></span></strong></span></p></div><div style="font-size: small; text-decoration: none; font-family: 'Calibri'; font-weight: normal; color: #000000; font-style: normal; display: inline;"><div dir="ltr"><div style="font-size: 12pt; font-family: 'Calibri'; color: #000000;"><div style="font-size: small; text-decoration: none; font-family: 'Calibri'; font-weight: normal; color: #000000; font-style: normal; display: inline;"><div style="font-size: 12pt; font-family: 'Calibri'; color: #000000;" dir="ltr"><p class="MsoNormal" style="margin: 0in 0in 10pt; line-height: normal; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;" align="center"><span style="font-family: 'Times New Roman'; color: #000080; font-size: 18pt;"><i style="mso-bidi-font-style: normal;"><span style="mso-fareast-font-family: 'Times New Roman';"> </span></i></span></p><p class="MsoNormal" style="margin: 0in 0in 10pt; line-height: normal; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;" align="center"><span style="color: #000080; font-size: 18pt;"><span style="font-family: 'Times New Roman';"><i style="mso-bidi-font-style: normal;"><span style="mso-fareast-font-family: 'Times New Roman';"></span></i></span> </span></p></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div><br></div></div></body></html>