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In this Korean name, the family name is Lee.
For other people with the same name, see Lee Yeon-ju.
PhD
Rickinasia/sandbox3
이연주
Born(1983-04-02)April 2, 1983
Seoul
CitizenshipSouth Korean
Alma materMax Planck Institute for Solar System Research, Institute for Geophysics and Extraterrestrial Physics of TU Braunschweig, Yonsei University
Known forVenus spectroscopy and imaging
Scientific career
InstitutionsInstitute for Basic Science, ESA, JAXA, Technical University of Berlin, University of Tokyo, Max Planck Institute for Solar System Research
Theses
Doctoral advisorDmitrij V. Titov
Other academic advisorsAndreas Hördt, Agustin Sánchez-Lavega, Kim Jhoon
Korean name
Hangul
이연주
Hanja
Revised RomanizationLee Yeonju
McCune–ReischauerLee Yŏnchu
WebsitePlanetary Atmospheres Group

Lee Yeon Joo is a planetary scientist specializing in Venus spectroscopy and imaging. She is co-investigator of the ultraviolet imager on board the Akatsuki and VenSpec-U the upcoming EnVision as well as guest investigator of BepiColombo. She is the chief investigator of the Planetary Atmospheres Group in the Pioneer Research Center for Climate and Earth Science at the Institute for Basic Science.[1] She is on the Early Career Scientist (ECS) committee of International Association of Meteorology and Atmospheric Sciences (IAMAS) and a member and representative of International Commission on Planetary Atmospheres and their Evolution (ICPAE).[2][3] She will serve as a vice-chair for the Committee on Space Research (COSPAR) Sub-Commission B4 on Terrestrial Planets at the General Assembly scheduled to be held in Busan in 2024.[4][5]

Education

Lee started her B.S. majoring in physics at Chung-Ang University before transferring to Yonsei University, which is where she obtained a B.S. and M.Sc. in atmospheric science. Supervised by Kim Jhoon,[6] her thesis was a study on the tropopause in order to better understand the stratosphere-troposphere exchange.[7] Dr. rer. nat. was completed in natural sciences at the Institute for Geophysics and Extraterrestrial Physics of TU Braunschweig in partnership of the Planetary Atmospheres research group of Max Planck Institute for Solar System Research,[8] which is also where she did her postdoc.

Career

Lee has been involved with several probes, Venus Express,[9][10][11][12] Akatsuki[13] and EnVision. Her role started as an invited research associate at Institute of Space and Astronautical Science (ISAS) and Japan Aerospace Exploration Agency (JAXA) in the Akatsuki team and later became a member of the science observation planning team and then co-investigator of the ultraviolet imager (UVI) on board the orbiter. While in Japan, she was also a project researcher at the University of Tokyo[14] and a guest investigator of the ESA–JAXA BepiColombo mission.[15][16][17][18] She is also co-investigator of the VenSpec-U instrument on the upcoming EnVision orbiter developed by the European Space Agency. Within Europe, she has been a visiting scientist and later researcher at DLR Institute for Planetary Research and EU researcher.[19][20][21][22]

In addition to orbiters, she has been involved in Venus observations with ground-based observations with JAXA in Japan,[23] NASA Infrared Telescope Facility in Hawaii,[24] UVES/VLT/ESO in Chile, Subaru Telescope, and Stratospheric Observatory for Infrared Astronomy (SOFIA). She led the Venus Faraway observation campaign which consisted of the Hisaki, Akatsuki and BepiColombo spacecraft and six ground-based telescopes.[25][24][26][27]

In 2022, she became the chief investigator of the Planetary Atmospheres Group within the Pioneer Research Center for Climate and Earth Science at the Institute for Basic Science.[28][29] As the head of South Korea's first research group studying atmospheres of other planets in our solar system, her team will focus on the long-term volatility of Venus, characteristics of the atmosphere of Venus, and changes in the atmosphere over time. Data will be acquired from ground-based telescopes and spacecraft, including the BepiColombo and Akatsuki missions as well as series of yet to be launched CubeSats.[30][31] The CubeSats are expected to cost about 3 billion KRW each, will be launched every three years, can view the entire planet instead of a narrow range by large probes, and will provide supplementary data to fill in the gaps between other missions. The first is planned to be launched in 2026.[32][33]

Research

Some of her research has been on unknown absorbers in the atmosphere of Venus, which absorb significant solar radiation. Using multiple spacecraft and telescopes, including Venus Express, Akatsuki, MESSENGER, and the Hubble Space Telescope, her research suggests a connection between Venus' cloud dynamics and its winds, where solar radiation absorption by the clouds influences temperature changes and, subsequently, wind patterns. The unknown absorbers play a role in altering the planet's albedo, impacting how much energy is reflected back into space.[34][35]

In collaboration with Takeshi Horinouchi of Hokkaido University, her efforts revealed that the super-rotation speed at the cloud tops not only varies over time but also differs between the northern and southern hemispheres. Additionally, the team identified planetary-scale atmospheric waves at the cloud tops, suggesting potential interactions with the super-rotation phenomenon. The asymmetry of the hemispheres may be linked to the unknown absorbers.[36][37]

Albedo has not been static but increased over a ten year period[38][39] which potentially could be the first identified climate change on another celestial body.[40]

Other research noted that much like the blooming of microalgae influences the albedo on Earth, the thickness of the clouds on Venus results in albedo to be very high in the majority of the wavelengths. Venus, in and of itself, cannot become brighter, but it can get darker. With an increase in absorbers wind velocity increased from 80 to 90 meters a second to 110 meters a second between 2007 and 2012, respectively.[41]

Through a comparison of the Lagrangian derivative of UV albedo and horizontal divergence, one of her studies established a connection between variations in cloud-top SO2 and vertical flow. This relationship was examined for both independent air parcels and the mean field. The findings indicate that the supply of SO2 by the solar-fixed mean flow is influenced by thermal tides, and the quantity of SO2 also responds to transient, localized ascending flows.[42]

Her research has also called into question some of the methodology used to estimate the surface of an exoplanet, its rotational period, and the presence of an atmosphere. Established research has predominately used time-series measurements of reflected starlight to understand those planetary aspects. But as super-rotating winds on Venus has changed its brightness, this could have further reaching implications for exoplanets. The research team provided new models to analyze observation data of other planets.[43]

Fellowship and career highlights

  • 2021: 2020 Top 50 Physics articles, Nature Communications[44]
  • 2020: Selected as featured image, Nature Communications[45]
  • 2019: Selected as research highlight, American Astronomical Society[46]
  • 2019: EU Horizon2020 Marie Skłodowska-Curie Actions Individual Fellowships[47][19]
  • 2009: PhD Fellowship from the International Max Planck Research School (IMPRS) on Physical Processes in the Solar System and Beyond at the Universities of Braunschweig and Göttingen, Germany[48]

Selected publications

  • {{cite journal}}: Empty citation (help)

See also

References

  1. ^ "he Scientist Who Chases After the First Rising Star at Dawn". Institute for Basic Science. 6 January 2023. Retrieved 22 November 2023.
  2. ^ "Welcome to the IAMAS Early Career Scientist webpage!". International Association of Meteorology and Atmospheric Sciences. Retrieved 2 August 2022.
  3. ^ "ICPAE Membership List" (PDF). International Association of Meteorology and Atmospheric Sciences. Retrieved 2 August 2022.
  4. ^ "Scientific Commission B: Space Studies of the Earth-Moon System, Planets, and Small Bodies of the Solar System". Committee on Space Research. Retrieved 12 October 2022.
  5. ^ "45th COSPAR Scientific Assembly (COSPAR 2024), Busan, South Korea". Committee on Space Research. 22 February 2022. Retrieved 12 October 2022.
  6. ^ "석사학위자 명단". 대기과학과 (in Korean). Yonsei University. Retrieved 4 August 2022.
  7. ^ "Regional and seasonal variations of different tropopauses observed by radiosonde and ozonesonde". RISS 학술연구정보서비스 (in Korean). Korea Education & Research Information Service. Retrieved 2 August 2022.
  8. ^ "Solar system science lecture notes and downloads". Max Planck Institute for Solar System Research. Retrieved 2 August 2022.
  9. ^ Yeon Joo Lee; Dmitriy Titov; Silvia Tellmann; Giuseppe Piccioni; Arianna Piccialli; Martin Pätzold; Pierre Drossart (2010). "Vertical structure of the Venus cloud top from the VeRa and VIRTIS observations onboard Venus Express" (PDF). Geophysical Research Abstracts. Retrieved 26 September 2022.
  10. ^ "Observational Analysis of Venus's Y-Feature and Its Relationship to Atmospheric Superrotation" (PDF). EPSC-DPS Joint Meeting 2019. September 2019. Retrieved 8 August 2022.
  11. ^ "あかつきトークライブ20（最終回！）". Staff blog of Sagamihara City Museum (in Japanese). 24 October 2015. Retrieved 8 August 2022.
  12. ^ "[Dataset] Spatial and temporal variability of the 365-nm albedo of Venus observed by the camera on board Venus Express". Zenodo. CERN Data Centre & Invenio. 22 April 2022. Retrieved 8 August 2022.
  13. ^ "Publication List". Venus Climate Orbiter Akatsuki. JAXA. Retrieved 9 August 2022.
  14. ^ "ポスドク　リー･ヨン・ジュ(Yeon Joo Lee)". Imamura & Aoki Laboratory (in Japanese). University of Tokyo. Retrieved 8 August 2022.
  15. ^ "BepiColombo Venus Flybys". European Space Agency. Retrieved 26 September 2022.
  16. ^ "Venus takes centre stage in October 2020 observation campaign". European Space Agency. 19 September 2019. Retrieved 26 September 2022.
  17. ^ "2020 Coordinated Venus Observations of BepiColombo (ESA and JAXA), Akatsuki (JAXA), and Ground-based Telescopes" (PDF). EPSC-DPS Joint Meeting 2019. September 2019. Retrieved 8 August 2022.
  18. ^ 이성현 (31 May 2022). "IBS, 기후 및 지구과학 연구단·행성대기 연구그룹 출범". 충청뉴스 (in Korean). Retrieved 8 August 2022.
  19. ^ a b "We are happy to introduce you to our #MSCA #IF Fellow of the week, Dr Yeon Joo Lee!". Facebook. Marie Skłodowska-Curie Actions. 7 May 2021. Retrieved 2 August 2022.
  20. ^ "金星探査機「あかつき」観測成果に関する記者説明会". Panda Studio (in Japanese). 19 November 2019. Retrieved 8 August 2022.
  21. ^ "IBS, '기후 및 지구과학 연구단'과 '행성대기 연구그룹' 출범". 전자신문 (in Korean). 31 May 2022. Retrieved 8 August 2022.
  22. ^ "金星探査機「あかつき」観測成果に関する記者説明会（19/11/19）ライブ配信". ファン！ファン！JAXA！ (in Japanese). JAXA. 19 November 2019. Retrieved 8 August 2022.
  23. ^ "JAXA/AKATSUKI – ESA/JAXA BEPICOLOMBO COORDINATION DURING VENUS FLYBYS IN OCT. 2020 AND AUG. 2021". Observatoire de Paris. Retrieved 9 August 2022.
  24. ^ a b "Venus takes center stage in October 2020 observation campaign". Phys.org. Europlanet Society. 20 September 2019. Retrieved 9 August 2022.
  25. ^ "Calar Alto is involved in an international campaign to study changes in the brightness of Venus". Calar Alto Observatory. 24 September 2021. Retrieved 9 August 2022.
  26. ^ "Venus dayside observation campaign performed by multiple space missions and ground-based facilities". Europlanet Science Congress 2021. Euro Planetary Society. September 2021. Retrieved 9 August 2022.
  27. ^ "Venus Takes Centre Stage in October 2020 Observation Campaign". Euro Planet Society. 19 September 2019. Retrieved 9 August 2022.
  28. ^ "기초과학연, 지구과학 분야 신규 연구단·연구그룹 출범". Hankyung (in Korean). 연합뉴스. 31 May 2022. Retrieved 8 August 2022.
  29. ^ 정종오 (31 May 2022). "IBS, 행성 대기 연구그룹 출범". 아이뉴스24 (in Korean). Retrieved 8 August 2022.
  30. ^ Kim Joo-heon (3 June 2022). "Notable planetary researcher Lee Yeon-joo selected to lead S. Korea's first Venus research". Aju Business Daily. Retrieved 8 August 2022.
  31. ^ "Research positions in the Planetary Atmospheres Group at the Institute for Basic Science". AAS Job Register. American Astronomical Society. Retrieved 6 November 2023.
  32. ^ 권예슬 (27 June 2023). "생명체 거주 가능 외계행성 찾기, 금성이 알려준다: '지상낙원'이 변화무쌍한 '불지옥'으로 밝혀지기까지…금성 탐사의 과거‧현재‧미래". The Science Times (in Korean). Retrieved 7 November 2023.
  33. ^ "'외계 생명체 찾기' 단서 될 금성에 2026년 초소형 위성 보낸다". The Dong-a Ilbo (in Korean). 뉴스1. 23 June 2023. Retrieved 7 November 2023.
  34. ^ Erica Naone (29 August 2019). "Mysterious dark patches in Venus' clouds are affecting the weather there: What the dark patches are is still a mystery, though astronomers dating back to Carl Sagan have suggested they could be extraterrestrial microorganisms". Astronomy. Retrieved 22 November 2023.
  35. ^ Terry Devitt (26 August 2019). "Mysterious cloud 'absorbers' seen to drive Venusian albedo, climate". University of Wisconsin–Madison. Retrieved 22 November 2023.
  36. ^ "Venus puts on variety show among its cloud-tops". Euro Planet Society. 19 September 2019. Retrieved 22 November 2023.
  37. ^ Javier Barbuzano. "The Clounds of Venus Puzzle Scientist". Sky & Telescope. AAS Sky Publishing. Retrieved 22 November 2023.
  38. ^ 森山 和道 (19 November 2019). "JAXA、探査機あかつきが金星大気の動きを観測で明らかに: ～金星の「スーパーローテーション」の理解を目指す". やじうまPC Watch (in Japanese). Impress Corporation. Retrieved 22 November 2023.
  39. ^ "金星探査機「あかつき」観測成果に関する記者説明会". Ima (in Japanese). Hatena Blog. 19 November 2019. Retrieved 22 November 2023.
  40. ^ Javier Peralta (September 2019). "Venus' Ocean of Air and Clouds: Deep, Dynamic Currents Revealed by Venus Express and Akatsuki". The Planetary Report. The Planetary Society. Retrieved 22 November 2023.
  41. ^ Oded Carmeli (31 October 2019). "Everyone Is Searching for Life on Mars. Why They Should Be Looking on Venus Instead: Venus is hell. But life may exist there, researchers say". Haaretz. Retrieved 22 November 2023.
  42. ^ "[PPS06-12] Variability of UV albedo and its relation to the wind field revealed by Akatsuki UVI". JpGU-AGU Joint Meeting 2020. Atlas Advanced Scholarly Connections. Retrieved 22 November 2023.
  43. ^ "Hot Winds on Venus". Technical University of Berlin. 7 December 2020. Retrieved 6 November 2023.
  44. ^ "2020 Top 50 Physics Articles". Nature Communications. 12 March 2021. Retrieved 2 August 2022.
  45. ^ "Our new featured image shows brightness modulations of Venus, pointing towards atmospheric super-rotation". Twitter. 27 November 2020. Retrieved 2 August 2022.
  46. ^ "Selections from 2019: Tracking Variations in Venus's Clouds". American Astronomical Society. 23 December 2019. Retrieved 2 August 2022.
  47. ^ "Cloud Worlds: from Venus to Exoplanet". CORDIS. European Commission. 25 April 2019. Retrieved 2 August 2022.
  48. ^ "Alumni". International Max Planck Research School for Solar System Science at the University of Göttingen. Max Planck. Retrieved 26 September 2022.




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