USGS IN YOUR STATE

USGS Water Science Centers are located in each state.

Expertise/Projects/Research Interests:

• Statistical analysis of hydrologic data, including parametric and nonparametric trend analysis, regression analysis, and cluster analysis
• Data mining including automated data retrieval and analysis, outlier detection, and data cleaning
• Web access log analysis including usage patterns and trends, analysis of sessionized logs and navigation paths, data aggregation methods such as the Porter Stemming Algorithm
• Graphical presentation of scientific data
• Perl, S, and VBA programming
• Data munging - converting and processing large amounts of data for analysis and reporting
• Relational database creation and manipulation
• CGI programming for the web

Education:

• Master of Science, Statistics, 2006
  Colorado State University, Fort Collins, Colorado
  • Masters Project: Water-Quality Trend Analysis for the Devils Lake Basin, North Dakota, January 1965 through September 2003
• A.A.S, Computer Support Specialist, 2003
  Bismarck State College, Bismarck, North Dakota
• B.A., Mathematics, 1995
  Luther College, Decorah, Iowa
  • Pi Mu Epsilon - Honorary National Mathematics Society

• Graduate Certificate, Data Mining and Applications, 2008
  Stanford University, Stanford, California
• Certificate, Management, 1996
  University of Mary, Bismarck, North Dakota

Publications:

• Ryberg, K.R., 2008, PFReports: A program for systematic checking of annual peaks in NWISWeb: U.S. Geological Survey Open-File Report 2008-1284, 17 p. -- URL http://pubs.usgs.gov/of/2008/1284/.
• Ryberg, K.R., 2007, Continuous water-quality monitoring and regression analysis to estimate constituent concentrations and loads in the Sheyenne River, North Dakota, 1980-2006: U.S. Geological Survey Scientific Investigations Report 2007-5153, 22 p. -- URL http://pubs.usgs.gov/sir/2007/5153/.
• Ryberg, K.R., 2007, Summary and trend analysis of water-quality data for the Oakes Test Area, southeastern North Dakota, 1984-2004: U.S. Geological Survey Scientific Investigations Report 2007-5056, 118 p. -- URL http://pubs.usgs.gov/sir/2007/5056/.
• Ryberg, K.R.; Banse, T.A., 2007, Analysis of Central Region Water Science Center web access logs, August 1, 2006-July 31,2007: U. S. Geological Survey Internal Report, 15 vols, [variously paged].
• Ryberg, K.R.; Macek-Rowland, K.M.; Banse, T.A.; Wiche, G.J., 2007, A history of flooding in the Red River Basin: U.S. Geological Survey General Information Product 55, 1 sheet. -- URL http://pubs.usgs.gov/gip/2007/55/.
• Ryberg, K.R.; Macek-Rowland, K.M.; Wiche, G.J.; Klapprodt, L.A., 2007, 10th anniversary of the 1997 Red River flood: U.S. Geological Survey General Information Product 49, 1 sheet. -- URL http://pubs.water.usgs.gov/gip49/.
• Ryberg, K.R., 2006, Cluster Analysis of water-quality data for Lake Sakakawea, Audubon Lake, and McClusky Canal, Central North Dakota, 1990-2003: U.S. Geological Survey Scientific Investigations Report 2006-5202, 38 p. -- URL http://pubs.water.usgs.gov/sir2006-5202/.
• Ryberg, K.R., 2006, Continuous water-quality monitoring and regression analysis to estimate constituent concentrations and loads in the Red River of the North, Fargo, North Dakota, 2003-05: U.S. Geological Survey Scientific Investigations Report 2006-5241, 35 p. -- URL http://pubs.water.usgs.gov/SIR20065241.
• Ryberg, K.R.; Vecchia, A.V., 2006, Water-quality trend analysis and sampling design for the Devils Lake Basin, North Dakota, January 1965 through September 2003: U.S. Geological Survey Scientific Investigations Report 2006-5238, 64 p. -- URL http://pubs.usgs.gov/sir/2006/5238/.
• Ryberg, K.R.; Damschen, W.C.; Vecchia, A.V., 2005, Graphical user interface for accessing water-quality data for the Devils Lake Basin, North Dakota: U.S. Geological Survey Open-File Report 2005-1419, 15 p. -- URL http://pubs.water.usgs.gov/ofr20051419.
• Macek-Rowland, K.M.; Arntson, A.D.; Ryberg, K.R.; Dahl, A.L.; Leib, A., 2004, Water-use data for the Red River of the North Basin, North Dakota, Minnesota, and South Dakota, 1979-2001: U.S. Geological Survey Open-File Report 2004-1308, 255 p. -- URL http://pubs.water.usgs.gov/ofr20041308/.

Links:

• Continuous Water-Quality Estimation, Red River at Fargo/Moorhead
  
  
• Graphical User Interface for Devils Lake Basin Historic Water-Quality Data
  
  
• Flood Tracking for North Dakota and neighboring basins
  
  
• Canoeing North Dakota's Rivers
  
  
• Lewis and Clark and the U.S. Geological Survey in North Dakota
  
  
• Stanford Data Mining and Applications Graduate Certificate Program
  
  
• Colorado State University - Fort Collins - Statistics Department
  
  

Organizational Chart