Title | Image Comparisons of Snow and Ice Crystals Photographed by Light (Video) Microscopy and Low-Temperature Scanning Electron Microscopy |
Publication Type | Journal Article |
Year of Publication | 1998 |
Authors | Wergin W.P., Rango A., Erbe E.R |
Journal | Scanning |
Volume | 20 |
Start Page | 285 |
Pagination | 285-296 |
Date Published | 02/1998 |
Keywords | ice, low-temperature scanning electron microscopy, snow crystals, video microscopy |
Abstract | Light (video) microscopy and low-temperature scanning electron microscopy (SEM) were used to examine and record images of identical precipitated and metamorphosed snow crystals as well as glacial ice grains. Collection procedures enabled numerous samples from distant locations to be shipped to a laboratory for storage and/or observation. The frozen samples could be imaged with a video microscope in the laboratory at ambient temperatures or with the low-temperature SEM. Stereo images obtained by video microscopy or low-temperature SEM greatly increased the ease of structural interpretations. The preparation procedures that were used for low-temperature SEM did not result in sublimation or melting. However, this technique did provide far greater resolution and depth of focus over that of the video microscope. The advantage of resolution was especially evident when examining the small particles |
URL | files/bibliography/Rango1998-06.pdf |