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oai:mountainscholar.org:10217/2341022025-12-30T03:17:14Zcom_10217_100532com_10217_100000col_10217_100535

Judy, Clark Henry, author Meiman, James R. (James Richard), advisor Friedman, Irving, committee member Striffler, William D. (William David), committee member Tompkin, G., committee member McKee, Blaine K., committee member 2021-12-07T02:44:10Z 2021-12-07T02:44:10Z 1970 https://hdl.handle.net/10217/234102 https://doi.org/10.25675/3.025018 Covers not scanned. Item deaccessioned after digitization. HDO samples from natural and laboratory snowpacks show that snowpack metamorphism can reduce the initial variability in the HDO content of snow. Field studies in Colorado indicated melt water percolation reduced the variability from a spread of -229%o to -106% relative to Standard Mean Ocean Water for fresh snow to a spread of -182%a to -158%o for the snowpack in the middle of the melt period. Further studies in the laboratory indicated that isotopic fractionation and vapor transport occurring during depth hoar formation may homogenize the lower part of the snowpack before melt occurs. The homogenization of the HDO content of the snowpack would reduce the problems involved in following snowmelt through the hydrologic system. Preliminary studies indicated three unexpected results. No clear relationship was found between the HDO content of fresh snow and altitude. Fractionation did occur during sublimation from a snow surface. Depth hoar formation appeared to occur because of a continuous diffusion of material, not exclusively by a crystal-to-crystal transfer of mass. doctoral dissertations English eng Colorado State University. Libraries MMS ID: 991004394229703361 QC929.S7 J8 1950-1979 Meiman, James R. Little South Poudre Watershed and Pingree Park Campus. Colorado State University, College of Forestry and Natural Resources (1971). http://hdl.handle.net/10217/70382 Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. Snow Deuterium Deuterium and snow hydrology Text Doctor of Philosophy (Ph.D.) Doctoral Watershed Sciences Colorado State University This Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). open.access