Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
- Publication
- Publication Type
Articles 1 - 5 of 5
Full-Text Articles in Physical Sciences and Mathematics
Coal Energy And Environmental Impacts: Introduction, Luis F. O. Silva, Amy L. Wolfe
Coal Energy And Environmental Impacts: Introduction, Luis F. O. Silva, Amy L. Wolfe
Faculty, Staff, and Affiliated Publications--KGS
No abstract provided.
The Past Is The Key To The Present: Reconstructing Changes In Seasonal Precipitation Triggered By Ancient Climate Change, William Ward
The Past Is The Key To The Present: Reconstructing Changes In Seasonal Precipitation Triggered By Ancient Climate Change, William Ward
Scholars Week
Plant biomarkers have grown in use for defining paleoclimates in the geologic record, especially during major climate change events. Research utilizing these biomarkers often looks at leaf waxes within preserved organic matter in the rock record. These waxes are resilient to decomposition and thus are invaluable to paleoclimate reconstruction. Specifically, changes in the composition of hydrogen isotopes (D/H) in leaf wax lipids (n-alkanes and fatty acids) reflect changes in precipitation and can be used to model variability in the hydrologic cycle during major climate change events, such as abrupt global warming events (e.g. hyperthermals). The Paleocene-Eocene Thermal Maximum (PETM), about …
Analyzing The Effects Of Of Seasonal Land Cover And Precipitation On The Sediment Delivery Ratio Of An Agriculture Dominated Watershed., Jonah Liebman
Analyzing The Effects Of Of Seasonal Land Cover And Precipitation On The Sediment Delivery Ratio Of An Agriculture Dominated Watershed., Jonah Liebman
Electronic Theses and Dissertations
Soil erosion is of escalating importance as increasing population and climate change have put increasing pressures on agricultural food production. Vegetation and precipitation are two factors that control the amount of soil erosion extant within a region. Sediment delivery ratios (SDRs) assess the ratio of soil eroded from a watershed system that is permanently removed from the system through stream sediment discharge. Using 1) river discharge and sediment concentration data and 2) the Revised Universal Soil Loss Equation (RUSLE), this thesis analyzes fluctuations in monthly SDRs for an average hydroclimatological crop-harvest season for the Senachwine Creek watershed, IL. Through calculating …
Crystalline Architecture And Stratigraphy Of Coral Skeletal Density Banding: A Geobiological Record Of Changing Coral Reef Ecology, Kyle Fouke
Honors Theses
Coral skeletal density banding (CSDB), composed of alternating high density band (HDB) and low density band (LDB) layers that comprise the CaCO3 (aragonite) skeleton of scleractinian corals, are used as chronometers for global paleoclimatic reconstructions of sea surface temperature (SST). Scleractinian coral skeletons have been intensively studied for centuries with detail analysis of the macro- and microscale skeletal structure to establish taxonomic and evolutionary relationships of coral species, mechanisms of biomineralization, and seafloor physical, chemical and biological alteration (diagenesis) of the skeleton. This study is the first to determine the crystalline architecture of HDBs and CSDB stratigraphic …
Modeling The Effects Of Climate Change On Streamflow And Stream Temperature In The South Fork Of The Stillaguamish River, Katherine Mary Clarke
Modeling The Effects Of Climate Change On Streamflow And Stream Temperature In The South Fork Of The Stillaguamish River, Katherine Mary Clarke
WWU Graduate School Collection
The Stillaguamish River in northwest Washington State is an important regional water resource for local agriculture, industry, and First Nations tribes and a critical habitat for several threatened and endangered salmonid species, including the Chinook salmon. The river is currently subject to a temperature total maximum daily load, so it is important to understand how projected climate change will affect future stream temperatures and thus salmon populations. Snowpack is the main contributor to spring and summer streamflow and helps to mitigate stream temperatures as air temperatures rise through the summer in the South Fork of the Stillaguamish River. I used …