Atmospheric composition measurements by the microwave limb sounder (MLS) on the upper atmosphere research satellite

G. E. Peckham, J. W. Waters, R. S. Harwood, R. E. Cofield, D. A. Flower, M. A. Frerking, L. Froidevaux, R. F. Jarnot, C. L. Lau, G. K. Lau, B. J. Maddison, H. M. Pickett, H. C. Pumphrey, W. G. Read, M. L. Santee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The Microwave Limb Sounder (MLS) has monitored the composition of the stratosphere and lower mesosphere for more than three years since its launch on the Upper Atmosphere Research Satellite in September 1991. The MLS measures thermal emission from the atmospheric limb at millimetre wavelengths and is the first limb sounder to operate at these wavelengths from space. The primary measurements are of the concentrations of O3 ClO and water vapour and of atmospheric temperature. Secondary products which have been produced include SO2 from volcanic injections, HNO3, and upper tropospheric water vapour. Vertical profiles of atmospheric concentrations are retrieved from the measured radiances. Daily global maps at a number of levels in the atmosphere are produced from these profiles. Major results to date are summarised. The depletion of ozone in the Antarctic spring is illustrated with maps for 1991, 92 and 93. Maps for the Arctic are compared with corresponding maps for the Antarctic. Significant decrease in gaseous HNO3 has been observed in the Antarctic vortex. Water vapour fields used as tracers illustrate dynamical features of the winter polar vortices and, in the tropics, show a clear semi-annual oscillation in the upper stratosphere and a modulation of the annual cycle by the quasi-biennial cycle in the lower stratosphere. At low latitudes increased SO2 was observed following the 1991 Pinatubo volcanic eruption.

Original languageEnglish
Title of host publicationProceedings of the 1995 International Geoscience and Remote Sensing Symposium. Part 1 (of 3)
Pages429-431
Number of pages3
Volume1
Publication statusPublished - 1995
Event1995 International Geoscience and Remote Sensing Symposium - Firenze, Italy
Duration: 10 Jul 199514 Jul 1995

Conference

Conference1995 International Geoscience and Remote Sensing Symposium
CountryItaly
CityFirenze
Period10/07/9514/07/95

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microwave limb sounder
UARS
stratosphere
water vapor
limb
semiannual oscillation
wavelength
polar vortex
mesosphere
annual cycle
radiance
vertical profile
vortex
volcanic eruption
air temperature
tracer
ozone
atmospheric composition
atmosphere
winter

Cite this

Peckham, G. E., Waters, J. W., Harwood, R. S., Cofield, R. E., Flower, D. A., Frerking, M. A., ... Santee, M. L. (1995). Atmospheric composition measurements by the microwave limb sounder (MLS) on the upper atmosphere research satellite. In Proceedings of the 1995 International Geoscience and Remote Sensing Symposium. Part 1 (of 3) (Vol. 1, pp. 429-431)
Peckham, G. E. ; Waters, J. W. ; Harwood, R. S. ; Cofield, R. E. ; Flower, D. A. ; Frerking, M. A. ; Froidevaux, L. ; Jarnot, R. F. ; Lau, C. L. ; Lau, G. K. ; Maddison, B. J. ; Pickett, H. M. ; Pumphrey, H. C. ; Read, W. G. ; Santee, M. L. / Atmospheric composition measurements by the microwave limb sounder (MLS) on the upper atmosphere research satellite. Proceedings of the 1995 International Geoscience and Remote Sensing Symposium. Part 1 (of 3). Vol. 1 1995. pp. 429-431
@inproceedings{685cc14ab5d94aeb968fd06c777eed3b,
title = "Atmospheric composition measurements by the microwave limb sounder (MLS) on the upper atmosphere research satellite",
abstract = "The Microwave Limb Sounder (MLS) has monitored the composition of the stratosphere and lower mesosphere for more than three years since its launch on the Upper Atmosphere Research Satellite in September 1991. The MLS measures thermal emission from the atmospheric limb at millimetre wavelengths and is the first limb sounder to operate at these wavelengths from space. The primary measurements are of the concentrations of O3 ClO and water vapour and of atmospheric temperature. Secondary products which have been produced include SO2 from volcanic injections, HNO3, and upper tropospheric water vapour. Vertical profiles of atmospheric concentrations are retrieved from the measured radiances. Daily global maps at a number of levels in the atmosphere are produced from these profiles. Major results to date are summarised. The depletion of ozone in the Antarctic spring is illustrated with maps for 1991, 92 and 93. Maps for the Arctic are compared with corresponding maps for the Antarctic. Significant decrease in gaseous HNO3 has been observed in the Antarctic vortex. Water vapour fields used as tracers illustrate dynamical features of the winter polar vortices and, in the tropics, show a clear semi-annual oscillation in the upper stratosphere and a modulation of the annual cycle by the quasi-biennial cycle in the lower stratosphere. At low latitudes increased SO2 was observed following the 1991 Pinatubo volcanic eruption.",
author = "Peckham, {G. E.} and Waters, {J. W.} and Harwood, {R. S.} and Cofield, {R. E.} and Flower, {D. A.} and Frerking, {M. A.} and L. Froidevaux and Jarnot, {R. F.} and Lau, {C. L.} and Lau, {G. K.} and Maddison, {B. J.} and Pickett, {H. M.} and Pumphrey, {H. C.} and Read, {W. G.} and Santee, {M. L.}",
year = "1995",
language = "English",
volume = "1",
pages = "429--431",
booktitle = "Proceedings of the 1995 International Geoscience and Remote Sensing Symposium. Part 1 (of 3)",

}

Peckham, GE, Waters, JW, Harwood, RS, Cofield, RE, Flower, DA, Frerking, MA, Froidevaux, L, Jarnot, RF, Lau, CL, Lau, GK, Maddison, BJ, Pickett, HM, Pumphrey, HC, Read, WG & Santee, ML 1995, Atmospheric composition measurements by the microwave limb sounder (MLS) on the upper atmosphere research satellite. in Proceedings of the 1995 International Geoscience and Remote Sensing Symposium. Part 1 (of 3). vol. 1, pp. 429-431, 1995 International Geoscience and Remote Sensing Symposium, Firenze, Italy, 10/07/95.

Atmospheric composition measurements by the microwave limb sounder (MLS) on the upper atmosphere research satellite. / Peckham, G. E.; Waters, J. W.; Harwood, R. S.; Cofield, R. E.; Flower, D. A.; Frerking, M. A.; Froidevaux, L.; Jarnot, R. F.; Lau, C. L.; Lau, G. K.; Maddison, B. J.; Pickett, H. M.; Pumphrey, H. C.; Read, W. G.; Santee, M. L.

Proceedings of the 1995 International Geoscience and Remote Sensing Symposium. Part 1 (of 3). Vol. 1 1995. p. 429-431.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Atmospheric composition measurements by the microwave limb sounder (MLS) on the upper atmosphere research satellite

AU - Peckham, G. E.

AU - Waters, J. W.

AU - Harwood, R. S.

AU - Cofield, R. E.

AU - Flower, D. A.

AU - Frerking, M. A.

AU - Froidevaux, L.

AU - Jarnot, R. F.

AU - Lau, C. L.

AU - Lau, G. K.

AU - Maddison, B. J.

AU - Pickett, H. M.

AU - Pumphrey, H. C.

AU - Read, W. G.

AU - Santee, M. L.

PY - 1995

Y1 - 1995

N2 - The Microwave Limb Sounder (MLS) has monitored the composition of the stratosphere and lower mesosphere for more than three years since its launch on the Upper Atmosphere Research Satellite in September 1991. The MLS measures thermal emission from the atmospheric limb at millimetre wavelengths and is the first limb sounder to operate at these wavelengths from space. The primary measurements are of the concentrations of O3 ClO and water vapour and of atmospheric temperature. Secondary products which have been produced include SO2 from volcanic injections, HNO3, and upper tropospheric water vapour. Vertical profiles of atmospheric concentrations are retrieved from the measured radiances. Daily global maps at a number of levels in the atmosphere are produced from these profiles. Major results to date are summarised. The depletion of ozone in the Antarctic spring is illustrated with maps for 1991, 92 and 93. Maps for the Arctic are compared with corresponding maps for the Antarctic. Significant decrease in gaseous HNO3 has been observed in the Antarctic vortex. Water vapour fields used as tracers illustrate dynamical features of the winter polar vortices and, in the tropics, show a clear semi-annual oscillation in the upper stratosphere and a modulation of the annual cycle by the quasi-biennial cycle in the lower stratosphere. At low latitudes increased SO2 was observed following the 1991 Pinatubo volcanic eruption.

AB - The Microwave Limb Sounder (MLS) has monitored the composition of the stratosphere and lower mesosphere for more than three years since its launch on the Upper Atmosphere Research Satellite in September 1991. The MLS measures thermal emission from the atmospheric limb at millimetre wavelengths and is the first limb sounder to operate at these wavelengths from space. The primary measurements are of the concentrations of O3 ClO and water vapour and of atmospheric temperature. Secondary products which have been produced include SO2 from volcanic injections, HNO3, and upper tropospheric water vapour. Vertical profiles of atmospheric concentrations are retrieved from the measured radiances. Daily global maps at a number of levels in the atmosphere are produced from these profiles. Major results to date are summarised. The depletion of ozone in the Antarctic spring is illustrated with maps for 1991, 92 and 93. Maps for the Arctic are compared with corresponding maps for the Antarctic. Significant decrease in gaseous HNO3 has been observed in the Antarctic vortex. Water vapour fields used as tracers illustrate dynamical features of the winter polar vortices and, in the tropics, show a clear semi-annual oscillation in the upper stratosphere and a modulation of the annual cycle by the quasi-biennial cycle in the lower stratosphere. At low latitudes increased SO2 was observed following the 1991 Pinatubo volcanic eruption.

UR - http://www.scopus.com/inward/record.url?scp=0029178517&partnerID=8YFLogxK

M3 - Conference contribution

VL - 1

SP - 429

EP - 431

BT - Proceedings of the 1995 International Geoscience and Remote Sensing Symposium. Part 1 (of 3)

ER -

Peckham GE, Waters JW, Harwood RS, Cofield RE, Flower DA, Frerking MA et al. Atmospheric composition measurements by the microwave limb sounder (MLS) on the upper atmosphere research satellite. In Proceedings of the 1995 International Geoscience and Remote Sensing Symposium. Part 1 (of 3). Vol. 1. 1995. p. 429-431