Satellite observation of dehydration in the Arctic Polar stratosphere

L. L. Pan; W. J. Randel; H. Nakajima; S. T. Massie; H. Kanzawa; Y. Sasano; T. Yokota; T. Sugita; S. Hayashida; S. Oshchepkov

doi:10.1029/2001GL014147

Satellite observation of dehydration in the Arctic Polar stratosphere

L. L. Pan, W. J. Randel, H. Nakajima, S. T. Massie, H. Kanzawa, Y. Sasano, T. Yokota, T. Sugita, S. Hayashida, S. Oshchepkov

Atmospheric Composition Remote Sensing and Prediction

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

We report the first space-borne observation of dehydration in the Arctic polar stratosphere. In January 1997, the Improved Limb Atmospheric Spectrometer (ILAS) observed up to ∼3 ppmv water vapor reduction during ice cloud formation and ∼2 ppmv permanent removal of water vapor, mostly at altitudes between 23 and 26 km. In some cases, the dehydrated air was downwind from mountain wave induced Polar Stratospheric Cloud (PSC) events. Furthermore, simultaneous observations of HNO₃ and H₂O show that the gas phase reduction of HNO₃ in the Arctic (January 1997) was much smaller than that observed in the Antarctic (June 1997) when a similar level of water vapor reduction occurred.

Original language	English
Article number	1184
Journal	Geophysical Research Letters
Volume	29
Issue number	8
DOIs	https://doi.org/10.1029/2001GL014147
State	Published - Apr 15 2002

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title = "Satellite observation of dehydration in the Arctic Polar stratosphere",

abstract = "We report the first space-borne observation of dehydration in the Arctic polar stratosphere. In January 1997, the Improved Limb Atmospheric Spectrometer (ILAS) observed up to ∼3 ppmv water vapor reduction during ice cloud formation and ∼2 ppmv permanent removal of water vapor, mostly at altitudes between 23 and 26 km. In some cases, the dehydrated air was downwind from mountain wave induced Polar Stratospheric Cloud (PSC) events. Furthermore, simultaneous observations of HNO3 and H2O show that the gas phase reduction of HNO3 in the Arctic (January 1997) was much smaller than that observed in the Antarctic (June 1997) when a similar level of water vapor reduction occurred.",

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T1 - Satellite observation of dehydration in the Arctic Polar stratosphere

AU - Pan, L. L.

AU - Randel, W. J.

AU - Nakajima, H.

AU - Massie, S. T.

AU - Kanzawa, H.

AU - Sasano, Y.

AU - Yokota, T.

AU - Sugita, T.

AU - Hayashida, S.

AU - Oshchepkov, S.

PY - 2002/4/15

Y1 - 2002/4/15

N2 - We report the first space-borne observation of dehydration in the Arctic polar stratosphere. In January 1997, the Improved Limb Atmospheric Spectrometer (ILAS) observed up to ∼3 ppmv water vapor reduction during ice cloud formation and ∼2 ppmv permanent removal of water vapor, mostly at altitudes between 23 and 26 km. In some cases, the dehydrated air was downwind from mountain wave induced Polar Stratospheric Cloud (PSC) events. Furthermore, simultaneous observations of HNO3 and H2O show that the gas phase reduction of HNO3 in the Arctic (January 1997) was much smaller than that observed in the Antarctic (June 1997) when a similar level of water vapor reduction occurred.

AB - We report the first space-borne observation of dehydration in the Arctic polar stratosphere. In January 1997, the Improved Limb Atmospheric Spectrometer (ILAS) observed up to ∼3 ppmv water vapor reduction during ice cloud formation and ∼2 ppmv permanent removal of water vapor, mostly at altitudes between 23 and 26 km. In some cases, the dehydrated air was downwind from mountain wave induced Polar Stratospheric Cloud (PSC) events. Furthermore, simultaneous observations of HNO3 and H2O show that the gas phase reduction of HNO3 in the Arctic (January 1997) was much smaller than that observed in the Antarctic (June 1997) when a similar level of water vapor reduction occurred.

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U2 - 10.1029/2001GL014147

DO - 10.1029/2001GL014147

M3 - Article

AN - SCOPUS:0037092364

SN - 0094-8276

VL - 29

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 8

M1 - 1184

ER -

Satellite observation of dehydration in the Arctic Polar stratosphere

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