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Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
Using Uavs To Establish A Visual Baseline Of Stream Flow Conditions At Usgs Stream Gauge Sites, Brett M. Kendra
Using Uavs To Establish A Visual Baseline Of Stream Flow Conditions At Usgs Stream Gauge Sites, Brett M. Kendra
The Research and Scholarship Symposium (2013-2019)
USGS stream gauge stations associated with the National Water Information System (NWIS) accurately measure various streamflow parameters, including stage height and discharge. However, photographic documentation of streamflow conditions is severely lacking for most gauge stations. This project aimed to fill this void in documentation by capturing aerial photographs of streamflow conditions using low altitude UAV photography. The photographs were taken at two stream gauge stations within the Little Miami River watershed located in southwestern Ohio over a seven month period. This time span encompassed three seasons, beginning mid fall 2015, and ending early spring 2016. The timestamp associated with each …
Laboratory Determination Of Porosity For A Vugular Carbonate Core Section By Water Immersion Method - Is It Effective Porosity?, Nolan Shula
The Research and Scholarship Symposium (2013-2019)
Porosity is one of the most vital characteristics in hydrocarbon reservoir evaluations, affecting the methods implemented in the completion process and the efficiency of the production process. Several methods are used for porosity calculations, but due to both lithologic and downhole drilling factors, these values can range more than ± 5%. Also, most limestone reservoirs contain multiple-porosity systems, which lead to effective porosity concerns, especially when secondary porosity is a significant factor. Therefore, through both geophysical wireline log analysis and basic laboratory analyses, this project compared total and effective porosity values of a vugular Onondaga Limestone pinnacle reef core section …
Relations Between Stream Chemistry, Fish Diversity, And Land Use In The Upper Little Miami Watershed, Connor J. Gilmour, Randy Howell, David Paulding, Charles W. Reynolds, Mark A. Gathany
Relations Between Stream Chemistry, Fish Diversity, And Land Use In The Upper Little Miami Watershed, Connor J. Gilmour, Randy Howell, David Paulding, Charles W. Reynolds, Mark A. Gathany
The Research and Scholarship Symposium (2013-2019)
Streams are susceptible to numerous threats to their water quality and biodiversity. In southwest Ohio a major driver of these impacts is associated with current agricultural practices and associated legacy effects. These structural and chemical impacts are known to affect biodiversity in these streams. The objective of this study was to document and examine relationships among land-use/land cover, stream chemistry, and fish diversity in the headwaters streams of the Little Miami Watershed. Three streams (Little Miami River, Massies Creek - North Fork, and Massies Creek - South Fork) were sampled in the upper headwaters as well as downstream. Air and …
Does Recreational Diving Alter Hawksbill Sea Turtle Foraging Behavior? Results From A Marine Protected Area, Honduras, Christian Hayes
Does Recreational Diving Alter Hawksbill Sea Turtle Foraging Behavior? Results From A Marine Protected Area, Honduras, Christian Hayes
The Research and Scholarship Symposium (2013-2019)
Recent studies indicate that recreational diving may cause unintended behavioral changes in marine macrofauna. The hawksbill sea turtle (Eretmochelys imbricata) is a critically endangered species encountered by recreational divers in marine protected areas (MPAs) circumtropically. Few studies, however, have examined the impacts of recreational diving on sea turtle behavior. We conducted in-water observations of 61 juvenile hawksbill turtles from June 12 to September 2, 2014 in the Roatán Marine Park (RMP), Roatán, Honduras, to quantify the impacts of recreational diving on hawksbill behavior. We recorded turtle behaviors and the number of behavior bouts to test the effects of …