Preprints
https://doi.org/10.5194/amt-2021-340
https://doi.org/10.5194/amt-2021-340

  09 Nov 2021

09 Nov 2021

Review status: this preprint is currently under review for the journal AMT.

Variations of Arctic winter ozone from the LIMS Level 3 dataset

Ellis Remsberg1, Murali Natarajan1, and Ernest Hilsenrath2 Ellis Remsberg et al.
  • 1Science Directorate, NASA Langley Research Center, 21 Langley Blvd, Mail Stop 401B, Hampton, VA 23681, USA
  • 2Fellow at Joint Center for Earth System Technology, University of Maryland at Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA

Abstract. The Nimbus 7 limb infrared monitor of the stratosphere (LIMS) instrument operated from October 25, 1978, through May 28, 1979. Its Version 6 (V6) profiles and their Level 3 or zonal Fourier coefficient products have been characterized and archived in 2008 and in 2011, respectively. This paper focuses on the value and use of daily ozone maps from Level 3, based on a gridding of its zonal coefficients. We present maps of V6 ozone on pressure surfaces and compare them with several rocket-borne chemiluminescent ozone measurements that extend into the lower mesosphere. Daily, synoptic maps of V6 ozone and temperature illustrate that they are an important aid in interpreting satellite limb-infrared emission versus local measurements, especially when they occur during dynamically active periods of northern hemisphere winter. We then show a sequence of V6 maps of upper stratospheric ozone, spanning the minor stratospheric warmings of late January and early February 1979. The map sequence of V6 geopotential height reveals how ozone was changing in the vortex and at the centers of adjacent anticyclones. We also report on zonal variations of the tertiary ozone maximum of the upper mesosphere and its associated temperature fields during winter. These several examples provide a guide to researchers for further exploratory analyses of middle atmosphere ozone from LIMS.

Ellis Remsberg et al.

Status: open (until 14 Dec 2021)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Referee Comment on amt-2021-340', Anonymous Referee #1, 25 Nov 2021 reply
  • RC2: 'Comment on amt-2021-340', Anonymous Referee #2, 02 Dec 2021 reply

Ellis Remsberg et al.

Ellis Remsberg et al.

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Short summary
Ozone (O3) is an excellent tracer of atmospheric transport processes in the middle atmosphere during Arctic winter. The Nimbus 7 LIMS O3 profiles of late October 1978 through May 1979 now extend to the upper mesosphere via its Version 6 (V6) algorithm. We describe the generation of zonal Fourier coefficients from the profiles, followed by their gridding to daily synoptic maps of O3. We then present examples of how V6 O3 varies in the upper stratosphere and mesosphere during wintertime.