Environmental News

Discussion in 'Environmental Discussion' started by tochatihu, Oct 22, 2015.

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  1. tochatihu

    tochatihu Senior Member

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    #901 tochatihu, Apr 19, 2019
  2. tochatihu

    tochatihu Senior Member

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    OCO-3 is a new CO2-measuring satellite:

    mysterious Earther link

    Not sure I'd call it 'mysterious'. It is not really rare for proteins to fluoresce. In this case, protein is Ribulose-1,5-bisphosphate carboxylase/oxygenase. It is:

    A central player in photosynthesis
    The most abundant protein on earth
    Well exposed to sunlight (both those make its fluorescence easier to detect by satellite)

    Often shortened to Rubisco (which make cause a particular poster to fluorescence with some humorous response)
     
    #902 tochatihu, Apr 19, 2019
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  3. tochatihu

    tochatihu Senior Member

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    Global Energy & CO2 Status Report for 2018:

    GECO 2019
     
    #903 tochatihu, Apr 22, 2019
  4. bisco

    bisco cookie crumbler

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    just saw @902. sorry i'm late, i had a senior moment (n)
     
    #904 bisco, Apr 22, 2019
  5. tochatihu

    tochatihu Senior Member

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    I appear to have, as well. Although my access to JPL's OCO3 site is 'mysteriously' blocked, everything else suggests this is based on chlorophyll fluoresence, not Rubisco. So, as you were.
     
    #905 tochatihu, Apr 22, 2019
  6. bwilson4web

    bwilson4web BMW i3 and Model 3

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    If you get a chance, watch the first 30 min of the Tesla self-driving video. We’re seeing a processor architecture ideal for weather and climate models.

    Bob Wilson
     
    #906 bwilson4web, Apr 22, 2019
  7. tochatihu

    tochatihu Senior Member

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    #907 tochatihu, Apr 25, 2019
  8. tochatihu

    tochatihu Senior Member

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    #908 tochatihu, Apr 25, 2019
  9. tochatihu

    tochatihu Senior Member

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    If it was previously not mentioned, the OCO-3 will be attached to International Space Station. Scan earth surface with a swivelly mirror thing. Might not even be fair to call it a satellite.

    Launch on SpaceX Falcon scheduled in a few hours.
     
    #909 tochatihu, May 1, 2019
  10. Zeppo Shanski

    Zeppo Shanski Active Member

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    #910 Zeppo Shanski, May 2, 2019
  11. bisco

    bisco cookie crumbler

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    and a good place for it too. i wonder if we could sell them our nuculer waste?
     
    #911 bisco, May 2, 2019
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  12. tochatihu

    tochatihu Senior Member

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    Denali (or McKinley or Ongtupka if you prefer) has long had stringent rules about leaving behind 'non-liquid' materials. Everest /Sagarmatha/Qomolangma (and that entire mountain range) is more lax.
     
    #912 tochatihu, May 2, 2019
    Last edited: May 2, 2019
  13. fuzzy1

    fuzzy1 Senior Member

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    Denali's summit is also nearly 9000 feet lower, well short of the Everest's oxygen-starved 'death zone' And its base camp is something like 12,000 feet lower. So it is much more humanly possible to deal with waste and dead body issues at Denali than Everest.

    But it seems highly likely that there are additional reasons too, such as 1st vs 3rd world practices.
     
    #913 fuzzy1, May 2, 2019
  14. tochatihu

    tochatihu Senior Member

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    Everest climbers on Nepal side have had trash rules since 2014. Newest batch of stories from there give no indication of success in that.
     
    #914 tochatihu, May 2, 2019
  15. bisco

    bisco cookie crumbler

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    thinking of celebrities and their entourages being sherped up the hill
     
    #915 bisco, May 2, 2019
  16. tochatihu

    tochatihu Senior Member

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    Oxygen availability between Everest and Denali summits are different and standard formula works well enough. Troposphere is actually thinner at high latitude, but it is a minor effect.

    Climate has stronger differences with latitude. One could reasonably argue that Denali summit is higher in terms of climate. Leads to question of why no one has put temperature-recording gadgets on either one. Or any other absurd peaks that climbers are drawn to (like converse moths). This is 'trash' that could serve real purpose.

    I did not wake up today with thoughts of putting HOBOs (TM):

    Find Data Loggers for all measurements or applications.

    on mtn peaks.
     
    #916 tochatihu, May 2, 2019
  17. tochatihu

    tochatihu Senior Member

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    #917 tochatihu, May 6, 2019
  18. bisco

    bisco cookie crumbler

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    i read that renewables outstripped coal for the first time ever
     
    #918 bisco, May 6, 2019
  19. hill

    hill High Fiber Member

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    LOL!
    .
     
    #919 hill, May 6, 2019
  20. fuzzy1

    fuzzy1 Senior Member

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    More trouble for Boeing, having deleted a recovery path choice available in prior 737 versions:

    Seattle Times: Boeing altered key switches in 737 MAX cockpit, limiting ability to shut off MCAS

    On the older planes, one switch turns off all electric control of the horizontal trim, leaving just the manual trim wheel. The other turns off just the automatic trim, leaving the thumb buttons (manually driving the electric powered jackscrew) on the yoke still active.

    But on the MAX, both switches have identical function, turning off all electric control, including the thumb buttons. So when the plane gets into a condition where the aerodynamic forces are too strong to turn the manual trim wheel ...
     
    #920 fuzzy1, May 11, 2019
    Last edited: May 11, 2019
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