A recent study of water vapor trends above North America based on radiosonde measurements from 1973 to 1993 finds increases in
precipitable water over all regions except northern and eastern Canada, where it fell slightly.
Precipitable water over a colder ocean is nowhere as great over sea water 10 degrees warmer.
Not exact matches
It would be straightforward to test this with modeling by calculating the pressure change
over a region due to the hydrostatic pressure changes due to the removal of
precipitable water by precipitation.
The storm is passing
over waters of 29 °C — approximately 0.5 °C above average in temperature — and is an unusually wet storm, with amounts of
water vapor near the very high end of what is observed in tropical cyclones (
precipitable water values up to 3.0 inches.)
As expected, amounts of
precipitable water are greatest
over warm, equatorial regions and decrease more or less continuously with increasing latitude down to very low values
over the cold, polar regions.
It is recommended that this dataset should be used for analyses of
precipitable water and for model validation
over the oceans from 1988 onwards.