What if rain patterns change so much due to climate change that some people do not get enough water to grow their food? It may be possible to seed clouds with ice nuclei or other aerosol to induce rain. Tools like the CVI, GCVI and ACCESS are used to determine which particles act as nuclei in real clouds, and to measure their key properties.
The size and composition of sampled particles from UAVs and other airborne platforms used in weather modification research can be measured using the mOPC, mSEMS and filter sampler modules in the ACCESS line. Transmission electron microscope grids can be mounted in the filter sampler device to allow rapid collection of samples for off-line microscopy – an important tool in ice nucle and weather modification work.