Dr. Jonathan “Johnny” Ryan is a glaciologist who is interested in ice sheet surface processes. His research has investigated several key components that influence the accumulation and ablation of ice sheets, including snowfall, clouds, melt-albedo feedbacks, and supraglacial hydrology. To conduct this research, Johnny primarily relies on satellite remote sensing. This expertise has earned him selection onto NASA’s ICESat-2 and Terra/Aqua/Suomi Science Teams. Johnny also conducts field research and has spent many summers surveying ice sheets and glaciers with uncrewed aerial systems (UAS) or drones. His primary research site is the Greenland Ice Sheet, where he has worked out of Kangerlussuaq and Uummannaq. He has also conducted research on the Northern Patagonia Icefield and the Oregon Cascades. By combining fieldwork with new satellite remote sensing technology, Johnny’s research bridges spatial and temporal scales to generate new insights into ice sheet surface processes. The significance of his research is reflected by recent first- and second-author publications in journals such as Nature, Environmental Research Letters, Science Advances, Nature Communications, and Geophysical Research Letters.