4 ms·

Who is correct?

by jmartrican 3y ago

Who is correct?

HPsquared 3y ago
Corollary: Is their correctness mutually exclusive?
- relaxing 3y ago
  Unfortunately this Nature article (https://www.nature.com/articles/s41893-019-0220-7 https://www.nature.com/articles/s41893-019-0220-7 ) is behind a paywall, but the NASA summary implies they measured "leaf area". The Science article (https://www.science.org/doi/10.1126/sciadv.aax1396 https://www.science.org/doi/10.1126/sciadv.aax1396 ) claims Leaf Area Index (same or different measure than the Nature study?) "exhibited a transition from increasing trends before the late 1990s to decreasing trends afterward". So at first blush yes, but the details will doubtlessly prove otherwise. If anyone has an institutional login and can post a pdf, please do.
  - ylere 3y ago
    https://sci-hub.se/https://www.nature.com/articles/s41893-019-0220-7 https://sci-hub.se/https://www.nature.com/articles/s41893-01...
    - relaxing 3y ago
      Thank you. So. Science Paper (SP) uses data from 2 spaceborne sensors, MODIS and AVHRR. Nature Paper (NP) uses data from AVHRR alongside 3 other metrics: GLASS, GLOBMAP, and TCDR, all of which claim to be fusions of the same data from MODIS and AVHRR. (https://www.mdpi.com/2072-4292/8/3/263 https://www.mdpi.com/2072-4292/8/3/263 ... https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2012JG002084 https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/201... ... https://zenodo.org/records/4700264 https://zenodo.org/records/4700264 ) NP supplementals show the data from AVHRR does trend upwards to the present data (agreeing with SP), but the other 3 metrics are trending flat (GLASS, TCDR) or downward (GLOBMAP). I have neither the expertise nor inclination to delve further into the various methodologies of creating these various Leaf Area Indices.
  - itishappy 3y ago
    Full text available for free here: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6376198/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6376198/
deleted 3y ago
[deleted]
NoMoreNicksLeft 3y ago
Which will persuade people to believe in the correct narrative, and to disbelieve in the incorrect narrative?
- rjbwork 3y ago
  What is the correct narrative? What is the incorrect narrative?

Who is correct?

HPsquared 3y ago

Corollary: Is their correctness mutually exclusive?

relaxing 3y ago
Unfortunately this Nature article (https://www.nature.com/articles/s41893-019-0220-7 https://www.nature.com/articles/s41893-019-0220-7 ) is behind a paywall, but the NASA summary implies they measured "leaf area". The Science article (https://www.science.org/doi/10.1126/sciadv.aax1396 https://www.science.org/doi/10.1126/sciadv.aax1396 ) claims Leaf Area Index (same or different measure than the Nature study?) "exhibited a transition from increasing trends before the late 1990s to decreasing trends afterward". So at first blush yes, but the details will doubtlessly prove otherwise. If anyone has an institutional login and can post a pdf, please do.
- ylere 3y ago
  https://sci-hub.se/https://www.nature.com/articles/s41893-019-0220-7 https://sci-hub.se/https://www.nature.com/articles/s41893-01...
  - relaxing 3y ago
    Thank you. So. Science Paper (SP) uses data from 2 spaceborne sensors, MODIS and AVHRR. Nature Paper (NP) uses data from AVHRR alongside 3 other metrics: GLASS, GLOBMAP, and TCDR, all of which claim to be fusions of the same data from MODIS and AVHRR. (https://www.mdpi.com/2072-4292/8/3/263 https://www.mdpi.com/2072-4292/8/3/263 ... https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2012JG002084 https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/201... ... https://zenodo.org/records/4700264 https://zenodo.org/records/4700264 ) NP supplementals show the data from AVHRR does trend upwards to the present data (agreeing with SP), but the other 3 metrics are trending flat (GLASS, TCDR) or downward (GLOBMAP). I have neither the expertise nor inclination to delve further into the various methodologies of creating these various Leaf Area Indices.
- itishappy 3y ago
  Full text available for free here: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6376198/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6376198/

deleted 3y ago

[deleted]

NoMoreNicksLeft 3y ago

Which will persuade people to believe in the correct narrative, and to disbelieve in the incorrect narrative?

rjbwork 3y ago
What is the correct narrative? What is the incorrect narrative?