Albedo is an important climate regulator due to its influence on the Earth's surface energy budget. Snow covered landscapes (permanent or seasonal cover) have much higher albedo than any other surfaces on earth. Albedo values in snow covered regions can change significantly and quickly; typically decreasing, depending on the chemical impurities present within the snow (Warren & Wiscombe, 1980). Understanding albedo requires knowledge about the concentrations and distribution of chemical impurities within the snow (Gallet et al., 2011). In order to better understand how chemical impurities affect albedo, chemical depth profiles and spectral albedo measurements were collected frequently (every other day-daily) at six (2012-3) or three (2013-4) sites in New Hampshire, USA throughout the entirety of winter. Chemical inventories were compared to spectral albedo data to find correlations between chemical impurity concentrations and distribution and the consequent reduction in albedo, especially during periods of melt. The chemical depth profiles were also investigated during periods of melt to determine a relative rate of ion elution or amplification within the snowpack.
|School:||University of New Hampshire|
|School Location:||United States -- New Hampshire|
|Source:||MAI 53/06M(E), Masters Abstracts International|
|Subjects:||Atmospheric Chemistry, Environmental science, Geochemistry|
|Keywords:||Black Carbon, Melt, Snow, Temperate|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be