Item talk:Q46902

usgs_staff_profile:

 meta:
   status_code: 200
   timestamp: '2023-09-30T15:22:45.327364'
   url: https://www.usgs.gov/staff-profiles/scott-j-ikard
 profile:
   abstracts: []
   affiliations: []
   education: []
   email: sikard@usgs.gov
   expertise_terms:
   - Geophysics
   - Hydrogeology
   - Mathematics
   - Programming
   - Numerical Modeling
   honors: []
   intro_statements:
   - I am a licensed Professional Engineer with thirteen years of professional research
     and project engineering experience in geophysics, hydrogeology, and hydrology,
     with auxiliary experiences in fluvial geomorphology, civil, and geotechnical
     engineering.
   name: Scott J Ikard
   name_qualifier: null
   orcid: 0000-0002-8304-4935
   organization_link: https://www.usgs.gov/centers/oklahoma-texas-water-science-center
   organization_name: Oklahoma-Texas Water Science Center
   personal_statement: "Currently, I am a Hydrologist in the Geophysics unit of the\
     \ United States Geological Survey's Texas Water Science Center, in Austin, Texas.\
     \ I plan and perform applied research studies and projects that broadly encompass\
     \ proposals development, geophysical and hydrologic survey planning, instrumentation,\
     \ data acquisition, data processing, and publication of surface, waterborne,\
     \ airborne, and borehole hydrogeophysical data. The goals of my applied work\
     \ frequently include delineation and correlation of aquifer systems, geophysical\
     \ assessments of local and regional surface and ground water exchange-flow patterns,\
     \ quantification and uncertainty analysis of hydraulic and geophysical properties\
     \ of the vadose zone, confined and unconfined aquifers throughout the world.United\
     \ States Geological Survey. GS1315-11 Hydrologist/Geophysicist. Austin, Texas\
     \ 06/2014 \u2013 PresentOversight, site selection, planning and preparation,\
     \ and coordination of groundwater conservation districts, river authorities,\
     \ municipal and government agencies, and public stakeholders in research-drilling\
     \ and near-surface hydrogeophysical projects.Planning, implementation, and oversight\
     \ of waterborne and land-based geophysical field surveys using time and frequency\
     \ domain electromagnetics, self-potential mapping, electric resistance tomography,\
     \ seismic refraction, dilution gaging, water-level monitoring, differential\
     \ global positioning systems, Calibrated surface and borehole geophysical and\
     \ hydrologic instruments, and performed troubleshooting of logging instruments\
     \ and data acquisition systems in the field.Performed field acquisition, pre-processing,\
     \ inversion, and post-processing of vertical electrical soundings and transient\
     \ electromagnetic soundings, as well as surface self-potential and electrical\
     \ resistivity tomography data, to map alluvial and deep confined aquifers and\
     \ produce conceptual hydro-stratigraphic models for groundwater flow modeling.Developed\
     \ data-processing codes and algorithms for (a) automated hydro-stratigraphic\
     \ interpretation and geo-electric correlations from geophysical well logs and\
     \ drillers logs, (b) automated baseflow separation and recession analysis, (c)\
     \ digital signal processing, (d) groundwater flow modeling, particle tracking,\
     \ parameter estimation and uncertainty analysis, (e) 2D and 3D forward and inverse\
     \ modeling of self-potential and DC resistivity data using finite elements,\
     \ finite differences, and linear filter theory.Published innovative, novel research\
     \ in peer-reviewed journals and USGS reports."
   professional_experience: []
   title: Hydrologist