Sastrugi sea ice than on multiyear ice. First-year ice is smoother than multiyear ice, which allows the wind to pass uniformly over the surface without topographic obstructions. Except during the melt season, snow is dry and light in climates cold enough for sea ice, allowing the snow to be easily blown and create sastrugi parallel to the wind direction. The locations of sastrugi are fixed by March in the northern hemisphere and may be linked to the formation of melt ponds. Melt ponds are more likely to form in the depressions between zastrugi on first-year ice. Sastrugi Sastrugi, or zastrugi, are
Surface wave inversion p. 219-228. Park, C., Miller, R., Laflen, D., Neb, C., Ivanov, J., Bennet, B., Huggins, R., 2004, Imaging dispersion curves of passive surface waves: SEG Expanded Abstracts, v. 23. Supranata, Y. E., Kalinski M. E., Ye, Q., 2007, Improving the uniqueness of surface wave inversion using multiple-mode dispersion data: International Journal of Geomechanics, v. 7, p. 333-343. Xia, J., Miller, R.D., Yixian, X., Yinhe, L., Chao, C., Jiangping, L., Ivanov, J., Zeng, C., 2009, High Frequency Rayleigh-Wave Method: Journal of Earth Science, v. 20, p. 563-579. Yamanaka, H., Ishida, H., (1996). Application of genetic algorithms to an inversion of surface