This project, comparing Characteristics of clouds and rains and we need to have a definition of Cloud Type. For this purpose, I suggest we use http://commons.wikimedia.org/wiki/File:Cloud_types.jpg until one of your comments leads to an improvement and we identify a photograph that is more appropriate for our needs.
In selecting http://commons.wikimedia.org/wiki/File:Cloud_types.jpg I have tried to find a photo that is simple, that all can save to their own computer. This may make it easier to communicate basic information amongst us, but not be detailed enough to differentiate and define the Characteristics of clouds and rains. Our findings will inform us more about our needs.
Old saying are helpful in understanding the weather. Forecasters have a massive array of technology in play to predict short-term weather patterns. This does reduce our need to be precise about the types of clouds passing. It is likely that we will see marked differences between summer and winter clouds, and also the intervening seasons.
My expectation is that the timing of rain rhythms, perhaps like “rain-heavy-by-day, drizzle-by-night” or rain only near the cusps, will show the general effects based on the Biodynamic Calendar. But in these initial research phases, looking for general rules, we will take note of the Ascendent/Descendent and Phases of the Moon, in addition to the Constellations. A possible key is changes in clouds in different Constellations, so we should use these tagged titles – Cirrus, Cirrocumulus, Altostratus, Cumulonimbus, Cumulus, Nimbostratus, and Stratus – Keep Posted!