CEDAR: Multi-spectral Imaging Investigation of the Auroral Fine Structures Associated with Naturally Enhanced Ion Acoustic Lines

Information

• NSF Award
• 1139135

Owner

• Southwest Research Institute

• Award Id

  1139135

• Award Effective Date

  2/1/2012 - 12 years ago

• Award Expiration Date

  9/30/2014 - 9 years ago

• Award Amount

  $ 244,191.00

• Award Instrument

  Continuing grant

This project is a synergistic study of radar and optical measurements for investigating and characterizing the occurrence of Naturally Enhanced Ion Acoustic Lines (NEIALs) with coincident auroral fine structures. While it is known that NEIALs are a manifestation of large-amplitude ion acoustic waves and potentially Langmuir waves and/or large current densities, their influence and feedback on the electromagnetic and particle energy transfer within the magnetosphere-ionosphere system is not well understood. The project will make use of common-volume observations of the nighttime auroral ionosphere with ground-based Electron Multiplying Charged Couple Device (EMCCD) imagers and the Poker Flat Incoherent Scatter Radar (PFISR) to gain an improved understanding of NEIAL generation mechanisms. A suite of six narrowfield imagers will be used, each equipped with a different narrow bandpass filter, imaging multiple auroral emission lines simultaneously in order to derive the spatial distribution of the precipitating electron energy. The observations will take place during moon down periods, in both campaign and remote operation modes. The theory and modeling components will be investigated in partnership with an international collaborator.

• Program Officer

  Anne-Marie Schmoltner

• Min Amd Letter Date

  11/28/2011 - 12 years ago

• Max Amd Letter Date

  2/7/2014 - 10 years ago

• ARRA Amount

• Name

  Southwest Research Institute

• City

  San Antonio

• State

  TX

• Country

  United States

• Address

  6220 Culebra Road

• Postal Code

  782385166

• Phone Number

  2105222231

• First Name

  Robert

• Last Name

  Michell

• Email Address

  rmichell@umd.edu

• Start Date

  11/28/2011 12:00:00 AM

• First Name

  Marilia

• Last Name

  Samara

• Email Address

  msamara@swri.edu

• Start Date

  11/28/2011 12:00:00 AM

• Text

  AERONOMY

• Code

  1521

• Text

  SOLAR INFLUENCES

• Code

  1323

• Text

  ENVIRONMENT AND GLOBAL CHANGE