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dc.contributor.authorMarshall, Sara
dc.date.accessioned2021-12-01T19:54:57Z
dc.date.available2021-12-01T19:54:57Z
dc.date.issued2021-05
dc.identifier.urihttp://hdl.handle.net/11122/12562
dc.descriptionThesis (M.S.) University of Alaska Fairbanks, 2021en_US
dc.description.abstractSeven hydro-meteorological stations in the National Petroleum Reserve Alaska were analyzed to look at precipitation, discharge, and temperature trends. These hydro-meteorological stations included: Fish Creek, Judy Creek, Ikpikpuk, Ublutuoch, Seabee, Prince, and Otuk. A linear regression was performed on a year-by-year basis to fill in data gaps in the temperature time series, for all six stations with temperature data. The Seasonal Mann-Kendall test and a Modified Seasonal Mann-Kendall test were performed to determine if a trend appeared present in the time series and, if so, how significant the trend was. The Sen's slope analysis was then utilized to determine the magnitude of the trend, if a trend was observed in both analyses. The temperature trends showed an increasing trend in the temperature data for four stations: Judy Creek, Ublutuoch, Fish Creek, and Ikpikpuk. No trend was shown in the remaining station, Otuk station. One station, Prince, was removed from analysis due to a high percentage of missing data. The Modified Seasonal Mann-Kendall tests showed a trend in four of the five stations, and a slight positive trend in one of the five stations. The precipitation data showed 'no trend' in the Seasonal Mann-Kendall analysis. The Modified Seasonal Mann-Kendall test showed a slight trend (Fish Creek), a moderate trend (Otuk), and no trend (Ikpikpuk) for the precipitation data. Using the seasonal Mann-Kendall analysis the discharge data showed no trend in five out of seven stations and two trends (Fish Creek and Seabee). The Modified Seasonal-Mann-Kendall analysis showed and a significant trend twice (Fish Creek and Seabee), a moderate trend three times (Ikpikpuk, Prince, Otuk), a slight trend once (Ublutuoch), and no trend one time (Judy Creek) in the discharge data.en_US
dc.language.isoen_USen_US
dc.subjectHydrometeorologyen_US
dc.subjectNational Petroleum Reserveen_US
dc.subjectPrecipitationen_US
dc.subjectAtmospheric temperatureen_US
dc.subjectStream measurementsen_US
dc.subjectHydrologyen_US
dc.subject.otherMaster of Science in Civil Engineeringen_US
dc.titleTrend analysis of temperature, precipitation, and stream flow in the National Petroleum Reserve Alaskaen_US
dc.typeThesisen_US
dc.type.degreemsen_US
dc.identifier.departmentDepartment of Civil, Geological, and Environmental Engineeringen_US
dc.contributor.chairToniolo, Horacio
dc.contributor.committeeRasley, Brian
dc.contributor.committeeSchnabel, William
refterms.dateFOA2021-12-01T19:54:58Z


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