2025

December

• AGU! We made and met many friends. Tackang took a leadership to convene a session about global land carbon sink. Youngryel gave two invited talks, and Dongjin and Ryoungseob also gave talks. The rest of crews gave poster presentations.

• The C-sink project dinner

• Field trip to Cherwon rice paddy site for drone scanning.

• Field trip to Taehwa Mt.

• Field trip to Hwaseong wetland

November

• Jisun joined the field trip in Western Australia to collect hyperspectral reflectance of leaves. This is a part of LEMONTREE project and she contributed to the leaf physiology group led by Hugo in Utrecht Univ.

• We had a group dinner in Pyungyang cold noodle restaurant

• Yunsoo visited William Woodgate lab at The University of Queensland in Australia to collaborate TLS applications. Through Yunsoo, we will build a formal collaboration with Will's group

• We had a farewell party for Sungchan who will start a postdoc position at NASA Ames

• Sungchan joined NASA Ames as NPP postdoc. Good luck!

• Qidi, Heeju, Seokjin and Youngryel enjoyed cold noodles

• Field trip to Taehwa Mt

• Our works have been recognized by Clarivate again (2023 through 2025)! Thanks all who cited our science!

October

• Myunghan was collecting LAI data in Hwaseong wetland site

• Eco tower in GDK site was collapsed

• Qidi and lab crews visited Cherwon site

• Group dinner!

• Jisun is visiting Perth to join to a field trip with Utrecht and UWA team!

• Qidi Shu's birthday! Congratulations~

• Happy Birthday, Dongjin!

September

• Seokjin and Yunsoo work hard to master hyperspectral drone

• Welcome Ananda Kurtz! She is from University of Bern and will stay with us to develop global LAI map after removing managed pixels.

• Group lunch in a burger restaurant

• Happy birthday, Hyunjung!

• We welcome Qidi Shu who will stay with us for six months. He is the PhD student with Xiaolin Zhu at Hongkong Polytech. We are very happy to host you!

• Happy birthday Youngryel! Thanks to all

• Group dinner in Budlegol with Chinese foods. We celebrated Seongwoo's birthday too-

• Youngryel joined the energy partitioning workshop at Dartington, UK. It was a part of LEMONTREE workshop and YR gave a talk about our SIF work.

August

• We hosted an annual science meeting of LEMONTREE project. It was a full of fun!

• Congratulations for your graduations! Jisun, Yunsoo and Seokjin earned Master degrees, and Myunghan and Heeju earned bachelor degrees. They all advaned to the next degree programs in our lab.

• Happy birthday, Jooseo!

• Youngryel visited Carnegie Science and met the amazing young scholars, and enjoyed many discussion with Joe Berry from office to his home. Thanks Joe!

  
  

• Youngryel visited NASA Ames and gave a seminar. He also met a series of folks- this is Khuong Tran

• Youngryel visited Stanford and discussed SIF, VOD, and so on with Alex Konings

July

• New audio system!

• Youngyel joined FLUXNET workshop at the University of Queensland, Brisbane. He gave a talk about GPP-net

• Kuno Kasak visited us!

• Youngryel visited the Bay area for one month. He stayed Dennis' lab while visiting Carnegie, Stanford, and NASA Ames to give seminars. You may find some news from our LinkedIn threads: [LINK1] [LINK2] [LINK3]

• Youngryel unexpectedly met Gaylon Campbell at Berkeley!

• Happy birthday, Yunsoo!

June

• Juwon visited us and gave a seminar about his work at Yale

• Youngryel joined FLUXCOM workshop in Ziegenruck, Germany. He gave two talks about GPP-net and geostationary satellite applications.

• Elias served wonderful dinner to the sunfleck team at Hongdae

May

• Open Lab to introduce our lab to undergraduate students

• Youngryel joined AMS in Denver to celebrate Dennis in his honored session, and visited NOAA and gave a seminar about our global carbon cycle work

• Happy Teachers' day! Thanks to all!

• Thanks Drs. Hyungsuk, Jongmin and Jeehwan for celebrating Teacher's day

• Youngryel joined 2025 International Smart Agriculture Technology Innovation Forum in Nanjing. Our former member, Chongya Jiang, invited YR and we met old family

• In Nanjing, Youngryel also met Jing Chen and Pablo Zarco-Tejada. RSE team!

• This is how we do science. Discussion!

April

• Group lunch in burger

• Our former postdoc, Xing Li visited the lab and shared his recent science adventure

March

• Sangjun completed his job in the lab and moved to the new position. Thanks for your contribution and good luck in your next career!

• Seongwoo whose hometown is Jeju Island donated gyul!

• Happy Birthday, Hyeyoung and Seokjin~

• Happy Birthday, Myunghan!

• Dongjin is testing Raspberry fisheye camera.

• We closed our hyperspectral system in the Jeju forest site. Sangjun, Jeongho and Seongwoo visited and safely brought our system.

• Wet and heavy snow fell down. Many pine trees suffered from the heavy snow.

February

• Sungchan earned PhD! Congratulations!

• Yeji earned Master degree. Congratulations. She joined to Hanhwa Ocean.

• Wonseok left the lab to start an internship at NASA JPL. Folks were crying

• GaHyeon joined the lab as an internship.

January

• Welcome Weiguo! He joined the lab as a postdoc for crop growth monitoring project.

• Jisun, Seokjin, Hyeyoung and Youngryel joined BK21 international workshop in Shanghai.

• Changhyun, Yunsoo and Youngryel visited Jin Wu's group at the University of Hong Kong. We discussed various topics including forest biomass, phenology, cubesat, and so on. We look forward to the continued collaboration! Youngryel also met his PhD thesis committee member, Peng Gong.

• Elias Kaiser finally brought his univ T-shirt instead of flag!

• Jianing Fang from Columbia University visited us and developed Differentiable BESS. He also enjoyed raw fish.

• Jia Bai from University of Helsinki visited us and gave a seminar about her SIF work. Albert kindly joined the seminar via zoom as well.

• Our LiDAR folks scanned a series of NFI plots