2012

December

  • Hyungseok joined the lab (master course). Welcome!
  • Youngryel and Jeehwan attended AGU Fall meeting at San Francisco.

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  • The Ryu group attended The 4th International Winter School and Workshop on Climate/Environment Change at Ewha Womans University (Left). After the Winterschool, Ryu group had a dinner with Professor Jinkyu Hong’s group (Yonsei University) at Shinchon (Right)
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  • The Ryu group had a 2012 farewell party. This was the first beer after lab meeting at SNU.

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  • Jeehwan’s birthday (28 Dec 2012)

JH_BD

November

  • Andrew’s phenology review paper was published:

Richardson, A.D., Keenan, T.F., Migliavacca, M., Ryu, Y., Sonnentag, O., & Toomey, M. (2013). Climate change, phenology, and phenological control of vegetation feedbacks to the climate system. Agricultural and Forest Meteorology, 169: 156-173

  • Youngryel visited Biometlab at UC Berkeley and gave a short lab seminar on his current projects. Dennis hosted a nice dinner at his home and Youngryel, Sebastian and Martin joined.
  • Ryu Lab celebrated the arrival of Li-6400 (photosynthesis/soil respiration measurement). This instrument will play a key role in carbon flux measurements at Seoul Forest Park.

Li6400

  • Jeehwan made an amazing progress in digging-up to quantify carbon stock

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October

  • Youngryel appeared in EOS for the recognition of 2011 Editors’ Citation for Excellence in Refereeing for Global Biogeochemical Cycles. See here [PDF]
  • Youngryel had a short discussion with Rama Nemani (NASA Ames) at San Francisco Airport to run BESS on NASA NEX.
  • Youngryel attended the Heterotrophic Soil Respiration Workshop hosted by Mark Harmon at HJ Andrews Experimental Forest, Oregon State University.

GROUP PHOTO FROM WORKSHOP

  • Group dinner (16 Oct 2012)

SAMSUNG DIGITAL CAMERA

 

September

  • Camera paper has been published in Remote Sensing of Environment!
    • Ryu, Y.*, Verfaillie, J., Macfarlane, C., Kobayashi, H., Sonnentag, O., Vargas, R., Ma, S., & Baldocchi, D.D. (2012). Continuous observation of tree leaf area index at ecosystem scale using upward-pointing digital cameras. Remote Sensing of Environment, 126, 116-125 [PDF]
  • Terrestrial LiDAR survey was conducted in the Seoul Forest Park. The 3D information on canopy structures will be used to quantify carbon stocks, water and carbon fluxes in the park.
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  • Youngryel’s birthday (2012. 9)

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  • Seungjun’s birthday

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August

  • Camera paper has been accepted from Remote Sensing of Environment!
    • Ryu, Y.*, Verfaillie, J., MacFarlane, C., Kobayashi, H., Sonnentag, O., Vargas, R., Ma, S., & Baldocchi, D.D. (2012). Continuous observation of tree leaf area index at ecosystem scale using upward-pointing digital cameras. Remote Sensing of Environment, In press
  • Youngryel, Soohyun and Galam attended AOGS-AGU Joint Assembly in Singapore.

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  • Group dinner with Woonggi(2012.8.8)

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July

  • Youngryel accepted the invitation to join Editorial Board Members in Agricultural and Forest Meteorology.
  • Jeehwan and Woon-Ki started to dig out soil in the Seoul Forest Park! We aim to quantify soil carbon stock in the urban park.

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  • Group dinner (2012.7.19)

12.07.18

June

  • Youngryel was recommended for2011 Editors’ Citation for Excellence in Refereeing for Global Biogeochemical Cycles“!
  • Woong-Ki was awarded “Summer Research Internship Fellowship, CALS, SNU” and will join our group in this August.
  • Camera manuscript has been submited to RSE:
    • Ryu, Y.*, Verfaillie, J., MacFarlane, C., Kobayashi, H., Sonnentag, O., Vargas, R., Ma, S., & Baldocchi, D.D. (2012). Continuous observation of tree leaf area index at ecosystem scale using upward-pointing digital cameras. Remote Sensing of Environment, In review
  • Andrew’s phenology review manuscript has been submitted to AFM:
    • Richardson, A.D., Keenan, T.F., Migliavacca, M., Ryu, Y., Sonnentag, O., & Toomey, M. (2012). Climate change, phenology, and phenological control of vegetation feedbacks to the climate system. Agricultural and Forest Meteorology, In review

 

May

  • Dr. Shin Nagai from JAMSTEC to develop collaborations with PEN-EYE phenology network
  • Dr. Donggill Kim from Hawassa University in Ethiopia to develop collaborations in installing LED and digital cameras in Ethiopia to monitor vegetation structure and fuctions

withDong

April

  • New grant proposal on quantifying carbon cycle in the Seoul Forest was awarded from Natioanl Research Foundation!! It is 200,000$ over the three years.
  • Seungjoon was awarded from Volunteer Research Program, CALS, Seoul National University. He will work on the impacts of elevated [CO2] on biophysical properties of leaves. Congratulations!!
  • The group members worked very hard to calibrate LED sensors against Ocean Optics hyperspectrometer.
  • Minseok, PhD student at Professor Joon Kim’s lab, joined the NRF Korea-Americas cooperation project.
  • Six digital cameras with two LED-sensors were installed at two Koflux sites in Gwangneung.
  • One manuscript on scattering effects on gap fraction estimates was submitted to Agricultural and Forest Meteorology:
    • Kobayashi, H., Ryu, Y*., Baldocchi, D.D., Welles, J.M., & Norman, J.M. (2012). On the correct estimation of gap fraction: how to remove scattered radiation in the gap fraction measurements? Agricultural and Forest Meteorology, In reivew (* corresponding author)

March

  • Jeehwan started his master course!
  • Seungjoon joined the group as a research internship.
  • Spectral response of LEDs was characterized owing to Professor Jangjoo Kim who runs organic LED research group at SNU.
  • Youngryel gave a talk at Department of Atmospheric Sciences, Yonsei University. The title was “Integration of near-surface and satellite remote sensing to monitor land-atmosphere interactions from plot to global scales”
  • Hyungseok’s Birthday (2012. 3. 22)

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  • Group dinner at MapoSogeumGui (2012. 3. 8)

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February

  • Youngryel attended AGU Chapman Conference for Remote Sensing and Terrestrial Water Cycles at Hawaii.

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  • Youngryel attended ACEAS (Australian Centre for Ecological Analysis and Synthesis) meeting at Australia.

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back row: Jason Beringer, Eva van Gorsel, Youngryel Ryu , Natasha Kljun, Dong Gill Kim, Matt Paget. front row(s): Chris Pickett-Heaps, Alfredo Huete, Alex Held, Damian Barrett, Pep Canadell, Brad Evans, Ying-Ping Wang (Photo by Allison Specht)

January

  • BESS paper ranked 1st in the “Most Popular” of Global Biogeochemical Cycles.
  • 1st lab meeting!

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  • Juwon visited UC Berkeley (Dennis Lab) to learn building LED and DCP sensors. This travel was supported by NRF Korea-US collaboration project.

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  • Jeehwan Bae joined to our group. He is the first graduate student!! Welcome!

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  • Jaehoon recorded the first alumni in our lab. Good luck with your new plan!