*Applications may be reviewed on a rolling-basis and this posting could close before the deadline. Click here for information about the selection process.EPA Office/Lab and Location: A research opportunity is available at the Environmental Protection Agency (EPA), Office of Research and Development (ORD), Center for Environmental Measurement and Modeling (CEMM), Watershed and Ecosystem Characterization Division (WECD), Ecosystem Condition Branch (ECB) located in Cincinnati, Ohio.Research Project: This research project is to statistically characterize locations and potential processes influencing the efficacy of landscape surface water storage (wetlands, surface depressions) on mediating downstream nutrient (nitrogen, phosphorus) conditions across multi-scale watersheds.Under the guidance of a mentor, the research participant may participate in the following activities:Using state-of-the-science big data (i.e., monitored gage, geospatial, and remote-sensing data) coupled with advanced statistical approaches, which may include linear models (e.g., linear mixed effects), hierarchical approaches (e.g., Bayesian hierarchical regressions), non-parametric analysis (e.g., seasonal Mann-Kendall), and/or machine learning (e.g., Random Forest, neural networks);Collaborating with a research team of watershed hydrologists, biogeochemists, and systems ecologists;Contributing to multiple publications of the study outcomes in leading scientific journals, as well as present research findings at multiple international conferences.Learning Objectives: The research participant will learn the geographic focus of the research, which will be in diverse physiographic regions across the US. Many of the nation’s waterways remain affected by excess nutrients, which leads to harmful algal blooms, hypoxia, and poor ecological conditions and drinking water quality. The research participant may learn how to quantify landscape surface water features (e.g., natural, restored, and constructed wetlands and landscape depressions) remove nutrients and attenuate flooding at multiple watershed scales.Mentor(s): The mentor for this opportunity is Dr. Heather Golden (firstname.lastname@example.org). If you have questions about the nature of the research please contact the mentor(s).Anticipated Appointment Start Date: ~December 2020. All start dates are flexible and vary depending on numerous factors. Click here for detailed information about start dates.Appointment Length: The appointment will initially be for one year and may be renewed up to four additional years upon EPA recommendation and subject to availability of funding.Level of Participation: The appointment is full-time.Participant Stipend: The participant will receive a monthly stipend commensurate with educational level and experience. Click here for detailed information about full-time stipends.EPA Security Clearance: Completion of a successful background investigation by the Office of Personnel Management (OPM) is required for an applicant to be on-boarded at EPA.ORISE Information: This program, administered by ORAU through its contract with the U.S. Department of Energy (DOE) to manage the Oak Ridge Institute for Science and Education (ORISE), was established through an interagency agreement between DOE and EPA. Participants do not become employees of EPA, DOE or the program administrator, and there are no employment-related benefits. Proof of health insurance is required for participation in this program. Health insurance can be obtained through ORISE.Questions: Please see the FAQ section of our website. After reading, if you have additional questions about the application process please email EPArpp@orau.org and include the reference code for this opportunity.