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Add facility to report apparent (sundial) solar noon from new Orbital system in MAPL #1882

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dr0cloud opened this issue Dec 15, 2022 · 5 comments
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0 Diff Trivial The changes in this pull request are trivially zero-diff (documentation, build failure, &c.) ⌛ Long Term Long term issues

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@dr0cloud
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dr0cloud commented Dec 15, 2022

Add the facility to report apparent (sundial) solar noon from new orbital system for a given day and set of latitudes. This is different from mean solar noon due to the Equation of Time. This diagnostic will be akin to the calculation of the day-length from the diagnostic routine MAPL_SunGetDaylightDuration() and will either be implemented as a separate diagnostic subroutine or perhaps as an optional output from the above routine. Should be zero-diff ... just providing a new diagnostic.

@dr0cloud dr0cloud added the 0 Diff Trivial The changes in this pull request are trivially zero-diff (documentation, build failure, &c.) label Dec 15, 2022
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I'm reviewing my notes on the orbital calculations ... its been a while since I developed the new orbital system!

@tclune
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tclune commented Dec 15, 2022

Recently discovered that my EoT for GISS modelE accidentally assumed solar longitude and obliquity were in radians, while the parameters are actually in degrees. Not used for Earth scenarios, so it went unnoticed for a while.

@dr0cloud dr0cloud changed the title Add facility to report exact time of actual solar noon from new Orbital system in MAPL Add facility to report apparent (sundial) solar noon from new Orbital system in MAPL Dec 15, 2022
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Welcome Tom to this wee orbital excursion!

dr0cloud added a commit that referenced this issue Jan 4, 2023
…lar-noon-diagnostic

Update MAPL_sun_uc.F90
mathomp4 added a commit that referenced this issue Jan 9, 2023
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Feature/pnorris/#1882 add local solar hour angle diagnostic
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stale bot commented Feb 14, 2023

This issue has been automatically marked as stale because it has not had recent activity. If there are no updates within 7 days, it will be closed. You can add the "long term" tag to prevent the Stale bot from closing this issue.

@stale stale bot added the ❄️ Stale This issue has been marked stale label Feb 14, 2023
@mathomp4 mathomp4 added the ⌛ Long Term Long term issues label Feb 14, 2023
@stale stale bot removed the ❄️ Stale This issue has been marked stale label Feb 14, 2023
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Actually, we can close this.

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0 Diff Trivial The changes in this pull request are trivially zero-diff (documentation, build failure, &c.) ⌛ Long Term Long term issues
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