Snow4Flow was proposed as a large ($30M cost cap) Earth Venture Suborbital (EVS-4) mission in April 2023 and selected as such in April 2024. It will commence pending an Investigation Confirmation Review in 2026. Its airborne and ground campaigns are presently expected to occur in March–May 2027–2029. The Concept paper below details the Snow4Flow scientific hypotheses and mission objectives. Snow4Flow will solicit a science and instrument team via NASA ROSES 2025.
Comments and questions can be provided via the feedback page. Although individual responses may not be provided, upon release of the final text, we will enumerate significant changes made between the draft and final text, either through a FAQ or changes document.
The current version of the Snow4Flow Concept Paper is citable as:
Holt, J. W., Andrews, L. C., MacGregor, J. A., Aschwanden, A., Behrangi, A., Campbell, S. W., Daniel, M. F., Enderlin, E. M., Fahnestock, M. A., Felikson, D., Florentine, C., Flowers, G. E., Harig, C. T., Larsen, C. F., Leuschen, C. J., Morlighem, M., O'Neel, S., Robinson, K., Rounce, D. R., Studinger, M., Tober, Brandon S., Truffer, M. (2024). Snow4Flow: Concept Paper for a NASA Earth Venture Suborbital-4 Investigation. https://doi.org/10.5281/zenodo.14230366