Novel mask design for multiwavelength dayglow photometry

Abstract

We present and discuss a novel mask design that provides multiwavelength measurement capability for the dayglow photometer.

Variability of mesopause temperature derived from two independent methods using meteor radar and its comparison with SABER and EOS MLS and a collocated multi-wavelength dayglow photometer over an equatorial station, Thumba (8.5° N, 76.5° E)

“…The DGPM uses a unique mask assembly and chopping techniques to extract the faint dayglow emissions from the bright solar background. A detailed description of the technical details of the MWDPM (Multi-Wavelength Day Glow Photometer) can be found in Sridharan et al (1993Sridharan et al ( , 1998. The DGPM temperature measurements over Thumba agreed reasonably well with those obtained from collocated meteor radar, but for a very short period of time (summer equinox) (Vineeth et al 2005).…”

First three dimensional wave characteristics in the daytime upper atmosphere derived from ground‐based multiwavelength oxygen dayglow emission measurements

“…It is a challenge to make ground-based measurements of thermospheric dayglow emission intensities as these are buried in the strong solar scattered background continuum. However, innovations in the recent past have enabled unambiguous measurements of daytime optical emissions from the ground [e.g., Narayanan et al, 1989;Sridharan et al, 1993Sridharan et al, , 1998Chakrabarti et al, 2001;Pallamraju et al, 2002Pallamraju et al, , 2013Gerrard and Meriwether, 2011;Marshall et al, 2011].…”

A multiwavelength daytime photometer - a new tool for the investigation of atmospheric processes

“…The more the wavelengths to be monitored the more difficult it becomes to change the tuning conditions. In order to overcome the above difficulties and allow the photometer to detect different wavelengths nearly simultaneously, Sridharan et al (1993) suggested a novel mask design for multiwavelength dayglow photometry. The proposed mask design made use of the spatial separation of the various wavelengths under consideration by the FP etalon.…”