In Jena: Week 38

· โ˜• 2 min read · โœ๏ธ Hoontaek Lee
๐Ÿท๏ธ
  • #2021
  • #Daily Life
  • #Jena
  • ์ด๋ฒˆ ์ฃผ๋Š”…

    • Land carbon modeling training course by Northern Arizona Univ.
    • ๋…ธ๋ž€ ๊ฝƒ๋ฐญ์œผ๋กœ ํ•˜์ดํ‚น

    2021. 05. 17~21. ์›”~๊ธˆ์š”์ผ

    Land carbon modeling training์ด ์‹œ์ž‘๋๋‹ค. Northern Arizona University๋Š” ๋‚ด๊ฐ€ ์ „์— ๋ฐ•์‚ฌ ์ง€์›ํ–ˆ๋˜ ํ•™๊ต ์ค‘ ํ•˜๋‚˜๋‹ค. ๊ทธ ๋•Œ SAM framework๋ดค์„ ๋•Œ์ฒ˜๋Ÿผ ์ด๋ฒˆ ์ฝ”์Šค์—์„œ ์†Œ๊ฐœํ•˜๋Š” matrix approach modeling๋„ ์•„์ฃผ ์œ ์šฉํ•œ ํˆด์ด๋ผ๋Š” ๋Š๋‚Œ์„ ๋ฐ›์•˜๋‹ค.

    ๋งค์ผ ๊ฐ•์˜3๊ฐœ+ํ€ด์ฆˆ3๊ฐœ+์—ฐ์Šต1๊ฐœ+talk ํ•œ ๊ฐœ๋ฅผ ๋“ฃ๋Š”๋ฐ… ๊ทธ์ชฝ์—์„œ๋Š” ํ•˜๋ฃจ 4์‹œ๊ฐ„ ์ •๋„ ํˆฌ์žํ•˜๋ผ๊ณ  ํ–ˆ์ง€๋งŒ ์‹ค์ƒ ๋‚˜๋Š” ํ•˜๋ฃจ์ข…์ผ ๋งค๋‹ฌ๋ฆฌ๊ณ  ์žˆ๋‹ค. ์•„๋ฌดํŠผ ๋ณด๋žŒ์€ ์žˆ๋Š” ์ˆ˜์—….

    NCAR์˜ Will Wieder MPI-bgc์˜ Soenke
    Met Office์˜ Chris Jones

    ๋งค์ผ ์žˆ๋Š” invited talk์˜ ์—ฐ์‚ฌ๋“ค์€ ํ•˜๋‚˜๊ฐ™์ด ์œ ๋ช…์ธ์ด๋‹ค. Chris๊ฐ€ Carbon์„ ์—ฐ๊ตฌํ•˜๋Š” ์ด์œ ๋ฅผ ์ž˜ ์ •๋ฆฌํ•œ ๊ฒƒ ๊ฐ™์•„์„œ ๋งŽ์ด ๊ฐ€์ ธ์™”๋‹ค.

    Shoenke ๋ง๊ณ ๋„ ์šฐ๋ฆฌ ์—ฐ๊ตฌ์†Œ์—์„œ๋Š” Sue๋„ ๋ฐœํ‘œ๋ฅผ ์™”๋‹ค. ์งˆ๋ฌธ์„ ๋ช‡๊ฐœ ๋˜์กŒ๋Š”๋ฐ ์ฟจํ•˜๊ฒŒ ๋ฐ›์•„ ๋‹ต๋ณ€ํ•ด์ค€๋‹ค.

    Thank you, Susan. I have two questions:

    1. how much uncertainties can come from violating the assumptions? Esepcially, I’ve heard that the ticking of radio carbon is dependent on the environmental condition (as in the slide). So more errors could be caused by increased CO2?

      –> Very tiny. The decaying rate of natural radiocarbon doesn’t change, but the decaying rate of artificially added radiocarbon (e.g. bomb) can change.

    2. Is the decay rate for the radio carbon time-dependent? If heavier carbon is decomposed slower than the lighter one, then the k could increase with time.

      –> the decay rate can be estimated from a function of environmental conditions (e.g. temperature and moisture).

    2021. 5. 22. ํ† ์š”์ผ

    ์—ฐ๊ตฌ์†Œ์—์„œ ๋‚จ์ชฝ์œผ๋กœ ๋ณด์ด๋Š” ๋…ธ๋ž€ ์–ธ๋•์ด ์žˆ๋‹ค. ์ค‘๊ตญ ์• ๋“ค์ด ๊ฑฐ๊ธฐ ๊ฐ€๋ณด์ž๊ณ  ํ•œ๋‹ค. ๋ฐ”๋žŒ์ด ์—„์ฒญ ๋ถ€๋Š” ๋‚ ์ด์—ˆ๋Š”๋ฐ ์ž ๊น ๋น„๋„ ์™”๋‹ค. ๊ฑฐ๊ธด ๋…ธ๋ž€ ๊ฝƒ๋ฐญ์ด์—ˆ๋‹ค. ์œ ์ฑ„๊ฝƒ ๋Š๋‚Œ. ๊ทผ์ฒ˜๋Š” ๊ฐ€์ถ•์„ ๋ฐ๋ฆฌ๊ณ  ์žˆ๋Š” ์ง‘์ด ๋งŽ์•˜๋‹ค. ์–‘์€ ๊ฑฐ๋ฆฌ๋ฅผ ๋‘๊ณ  ํ’€์„ ๋œฏ๊ณ  ์žˆ๋‹ค. ์†Œ๋Š”…ํ‰ํ™”๋กญ๋‹ค. ์—„์ฒญ ํฐ ๋ชฉ์žฅ์ด ์žˆ์—ˆ๋Š”๋ฐ, ๋ง์„ ํƒ€ ๋ณผ ์ˆ˜๋„ ์žˆ์—ˆ๋‹ค. ๋ง์ด ๋˜ฅ ์‹ธ๋Š” ๋ชจ์Šต๋„ ๋ดค๋‹ค. 3์ดˆ? ์ •๋„ ๊ฑธ๋ ธ๋Š”๋ฐ ์–‘์ด ๋ฌด์ง€๋ง‰์ง€ํ•˜๋‹ค. ์†Œ๋ž‘ ๋น„์Šทํ•˜๊ฒŒ ๋ˆ„๋Š” ๋“ฏ. ๊ณ ์–‘์ด๋„ ํ•œ ๋งˆ๋ฆฌ ๋ดค๋Š”๋ฐ ๋ชฉ์— ์ƒ์ฒ˜๊ฐ€ ๊นŠ์—ˆ๋‹ค. ์ฏง. ๊ฒจ์šฐ 4~5์‹œ๊ฐ„ ๊ฑธ์—ˆ๋Š”๋ฐ ์—„์ฒญ ํž˜๋“ค๋‹ค. ์กฐ๊น…์—๋Š” ๊ด€์‹ฌ์ด ๋ณ„๋กœ ์—†๊ธฐ์—.

    ๊ทธ ์™ธ…

    ๋จน์€ ๊ฒƒ

    • ๋ผ์ง€ ๋ชฉ์‚ด!?์— ์Œˆ์žฅ์— ์ƒ์ถ”!? ๋ชฉ์‚ด์€ ๋ชฉ์‚ด ๊ฐ™์ด ์ƒ๊ฒผ์ง€๋งŒ ์‹๊ฐ์ด ์ข€ ๋‹ค๋ฅด๊ณ  ์ƒ์ถ”๋Š” ์กฐ๊ธˆ ์–‡์•˜์ง€๋งŒ ์•„๋ฌดํŠผ ์กฐํ•ฉ์€ ๊ฒ€์ฆ๋œ ๊ทธ ๋ง›์ด๋‹ค.

    • ์ง‘ ๊ทผ์ฒ˜ ํ”ผ์ž์ง‘์—์„œ ํ•œ ๋ฒˆ ์‚ฌ๋จน์–ด๋ดค๋‹ค. ์ €๊ฒŒ ์ €๋ž˜๋ดฌ๋„ ๊ณ ๋ฅด๊ณค์กธ๋ผ ํŒŒ์Šคํƒ€๋‹ค (…). ํ”ผ์ž๋ž‘ ๊ฐํŠ€๋Š” ํ‰๋ฒ”.

    ๋ฌด์ง€๊ฐœ

    • ๋‚ด๊ฐ€ ๋ณธ ๊ฐ€์žฅ ํฐ ๋ฌด์ง€๊ฐœ! ์‚ฌ์ง„์—๋Š” ์—†์ง€๋งŒ ๋ฐ˜๋Œ€ํŽธ์— ํ•˜๋‚˜ ๋” ์žˆ๋‹ค. ๋‚ ์”จ๊ฐ€ ๋ฏธ์ณ๊ฐ€์ง€๊ณ  ๋งˆ๊ตฌ ๋ฐ”๋€Œ๋‹ค๋ณด๋‹ˆ ์ด๋Ÿฐ ๋ฌด์ง€๊ฐœ๊ฐ€ ๋‚˜ํƒ€๋‚œ ๋“ฏํ•˜๋‹ค.

    ๋‹ค์Œ ์ฃผ๋Š”…

    • Land carbon modeling training course by Northern Arizona Univ.
    • ์—ฐ๊ตฌ์—ฐ๊ตฌ(?)
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    Hoontaek Lee
    WRITTEN BY
    Hoontaek Lee
    Tree-Forest-Climate Researcher

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