Final answer:
To gather precipitation data, scientists primarily use rain gauges and GPM satellites, combining ground and space-based observations for accurate weather predictions.
Step-by-step explanation:
Scientists rely on a variety of tools to gather information about precipitation. One primary tool used is the rain gauge, which measures the amount of precipitation over a set period of time at a specific location. In addition to ground-based instruments like rain gauges, scientists also use advanced technologies such as the GPM satellite (Global Precipitation Measurement), which can provide detailed observations of precipitation patterns from space. By combining data from ground tools and satellite technologies, scientists are able to make more accurate predictions and analyses of weather patterns, including precipitation.