Gaffen et al., 1992
Gaffen, Dian J., William P. Elliott, and Alan Robock,
1992: Relationships between tropospheric water vapor and surface
temperature as observed by radiosondes. *Geophys. Res.
Lett.*, **19**, 1839-1842.

**ABSTRACT:**

Using radiosonde data from 50 stations for 1973-1990, we
quantify relationships between surface air temperature (*T*_{S}) and
precipitable water (*W*) for different time scales. Monthly mean
observations are fairly well described by an equation of the form *ln
W = A + B T*_{S}, but the coefficients *A* and *B* depend on the
*T*_{S} range
considered. At high *T*_{S}, the relationship is poor. This relationship
and relationships between sea surface temperature (*SST*) and *W*
based on satellite microwave observations over oceans are in
remarkably good agreement over restricted *SST* ranges. Monthly
and annual anomalies of *W* and *T*_{S} are well correlated only outside
the tropics, but on longer time scales, there is some evidence of
positive trends in both *W* and *T*_{S} at most stations studied. Thus the
relationship between *W* and *T*_{S} depends on the time scales and
geographic region considered.

*Prepared by ***Alan Robock** (robock@envsci.rutgers.edu ) -
Last updated on April 2, 1999