Gallaher, D., & Campbell, G. G. (2014). Nimbus Ice Edge Points from Nimbus Visible Imagery L2, CSV, Version 1 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/NIMBUS/NMICEDG2 Date Accessed: 2026-08-07
Gallaher, D., & Campbell, G. G. (2014). Nimbus Ice Edge Points from Nimbus Visible Imagery L2, CSV, Version 1 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/NIMBUS/NMICEDG2 Date Accessed: 2026-08-07
Gallaher, David, and G. Garrett Campbell. “Nimbus Ice Edge Points from Nimbus Visible Imagery L2, CSV, Version 1.” NASA National Snow and Ice Data Center Distributed Active Archive Center, 2014, https://doi.org/10.5067/NIMBUS/NMICEDG2. Date Accessed: 2026-08-07