1. This video shows four things:
    1) The weather - the mean-sea-level pressure as simulated by the 20th Century Reanalysis (black contours: solid=low pressure, dashed=high).
    2) The observations - grey circles mark observations that we've had for a while, yellow ones observations recently recovered by the ACRE and oldWeather projects.
    3) The fog of ignorance - grey fog masks regions where the reconstructions are still very uncertain (as there are too few observations to constrain the reanalysis).
    4) The glow of discovery - yellow highlights mark regions where the new observations have produced a large improvement in the confidence of the reconstructions.

    # vimeo.com/75820702 Uploaded 1,055 Plays 0 Comments
  2. # vimeo.com/77352513 Uploaded 28 Plays 0 Comments
  3. 1918 Fog of Ignorance (Scout pdf compared to climatology)
    and Glow of Discovery (Scout pdf improves upon 20CR)
    Grey dots=observations in 20CRv2
    Gold dots=New observations used in Scout from oldweather.org, other ACRE partners
    Black contours = Sea Level pressure.

    # vimeo.com/79549694 Uploaded 51 Plays 0 Comments
  4. # vimeo.com/81375606 Uploaded 25 Plays 0 Comments
  5. Compares 20CR ensda 3.3.8 with ensda 3.3.3. - The highlighted observations are those from oldWeather.

    # vimeo.com/83190793 Uploaded 8 Plays 0 Comments


Philip Brohan Plus

Effects of the oldWeather RN observations on the Reanalysis. For details see vimeo.com/75820702

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