ESSIC senior faculty specialist Chris Grassotti and a team of scientists used the first results from the ATMS microwave instrument aboard JPSS-1/NOAA-20, a satellite launched in November, to generate images of total precipitable water. The data appears very consistent with that of Suomi-NPP, the satellite’s predecessor which is still in operation.
![Figure 3. Monthly TPW anomaly time series shown in red for ERA5 and blue for MiRS SNPP, 2012-2021. The straight lines are the linear regression fits. [a] is for global, [b] for Tropics, and [c] for mid-latitude regions, respectively.](https://essic.umd.edu/wp-content/uploads/2024/11/grassotti-zhou-150x150.png)
