Automatic field calculation #3

Activity

1. dopplershift

   self-assigned this

   on Mar 31, 2014
2. dopplershift

   added

   Type: FeatureNew functionalityNew functionality

   on Apr 20, 2015
3. dopplershift

   added

   Area: CalcPertains to calculationsPertains to calculations

   on Jan 26, 2016
4. dopplershift commented on Dec 7, 2016

   

   dopplershift

   on Dec 7, 2016

   MemberAuthor

   More actions

   As we add more calculations, like specific humidity, this becomes all the more interesting...
5. dopplershift commented on Dec 7, 2016

   

   dopplershift

   on Dec 7, 2016

   Last edited by dopplershift

   MemberAuthor

   More actions

   Ideas:

   • Decorator to register functions for what they take and what they produce
   • Strings like 'water_vapor_mixing_ratio' to identify parameters
   • Possibly need id for functions (if we can't use their name) so that you can optionally specify one to use. For example, AMS glossary has RH as e/e_s, while WMO has r_v / r_vs; these are slightly different. Would be nice to have these available and selectable.
   • Graph search to determine shortest path
   • Driver function for performing calculation; take a dictionary (or maybe a Dataset) of stuff saying what I have and a request for what I want.
   • Ability to override built-in calculations; essentially manually adding a node to the graph that could even be required to be in the final path
   • Optional debugging/warnings that some passed in parameters/relations are not used to catch naming problems

   Questions:

   • Is it appropriate for things like EL, LCL, CAPE?
   • What about dimensionality?

   Use case:
   I have specific humidity, temperature, and pressure; I want to get dewpoint without:

   1. Creating a function to specifically enable this
   2. Needing to discover for myself the easiest way to do this with the built-in primitive functions

   This could help simplify, or at least prevent the explosion of, the calculations module as we build up functionality.
6. dopplershift

   modified the milestone: Winter 2017This milestone has been deleted on Mar 10, 2017
7. jrleeman

   removed this from the 0.7 milestone on Nov 15, 2017
8. ThomasRieutord

   added a commit that references this issue on Jul 31, 2024

   Improve doc + linting (comment Unidata#3 in PR Unidata#3572)

   0f16c2d