| The University Corporation for Atmospheric Research (UCAR) COSMIC Program participated in the International H2O Project (IHOP) through the collecation and analysis of GPS stations in the IHOP region. A map of the region is shown below with the GPS stations. |
| All precipitable water vapor (PW) are available from IHOP data archive. Data can be accessed through the following URL http://www.joss.ucar.edu/ihop/dm/archive/. In addition, slant water vapor (SW) data will soon be available through the IHOP archive, or through this page. |