Discussion Overview
The discussion revolves around the relationship between Total Precipitable Water Vapor (TPW) and Precipitable Water Vapor (PWV), including their definitions, units of measurement, and potential differences. The context includes theoretical understanding and practical application, particularly in relation to data from MERRA-2.
Discussion Character
- Debate/contested
- Technical explanation
- Conceptual clarification
Main Points Raised
- Some participants propose that TPW (kg/m2) and PWV (mm) are equivalent, noting that 1 kg/m2 corresponds to 1 mm of water.
- Others argue that while TPW and PWV can be related through the density of water, they represent different concepts: TPW is a mass measurement, while PWV is a volume measurement expressed as a depth of water.
- One participant questions whether PWV and TQV are the same, suggesting that they are not, as they have different names and definitions.
- Another participant asserts that TPW is more accurate and temperature independent, while PWV is less accurate but indicates potential rainfall.
Areas of Agreement / Disagreement
Participants do not reach a consensus on whether TPW and PWV are the same, with differing views on their equivalence and definitions. The relationship between PWV and TQV also remains contested.
Contextual Notes
There are unresolved assumptions regarding the definitions and implications of TPW, PWV, and TQV, as well as the context in which these measurements are applied. The discussion includes varying interpretations of accuracy and relevance in practical scenarios.
Who May Find This Useful
This discussion may be useful for individuals interested in meteorology, hydrology, or data analysis related to atmospheric sciences, particularly those working with precipitation data and its implications.
