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Record #165340:

The role of katabatic winds on the Antarctic surface wind regime / Thomas R. Parish, John J. Cassano.

Title: The role of katabatic winds on the Antarctic surface wind regime / Thomas R. Parish, John J. Cassano.
Author(s): Parish, Thomas R.
Cassano, John J.
Date: 2003.
Abstract: Discusses potential role of Antarctic topography in shaping wind, using idealized numerical simulations. Katabatic winds result from radiative cooling of ice slopes, but simulations without explicit longwave radiation show that blocking influence of Antarctic orography is powerful constraint to surface wind regime. Resulting low-level wind fields resemble katabatic winds, with directions tied to underlying terrain and speeds dependent on slope of ice surface. Numerical simulation of strong wind event during austral autumn shows that katabatic component is only small fraction of horizontal pressure gradient force, suggesting that role of katabatic winds in Antarctic boundary layer may be overemphasized and the adjustment process between continental ice surface and ambient pressure field may be primary cause of Antarctic wind field.
Notes:

Offprint: Monthly Weather Review. Vol. 131(2) :317-333.

Keywords: 551.5 -- Meteorology.
551.55 -- Wind and air turbulence.
551.555.4 -- Katabatic winds, cold.
551.4 -- Geomorphology.
551.4.037 -- Slopes.
551.54 -- Atmospheric pressure.
91(08) -- Expeditions: 1955- US Antarctic Program.
D -- Atmospheric sciences.
(*7) -- Antarctic regions.
(*74) -- Australian Antarctic Territory.
Location(s): SCO: SPRI-PAM: (*7) : 551.55
SPRI record no.: 165340

MARCXML

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245 14 ‡aThe role of katabatic winds on the Antarctic surface wind regime /‡cThomas R. Parish, John J. Cassano.
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300 ## ‡ap. 317-333 :‡bdiags.
500 ## ‡aOffprint: Monthly Weather Review. Vol. 131(2) :317-333.
520 3# ‡aDiscusses potential role of Antarctic topography in shaping wind, using idealized numerical simulations. Katabatic winds result from radiative cooling of ice slopes, but simulations without explicit longwave radiation show that blocking influence of Antarctic orography is powerful constraint to surface wind regime. Resulting low-level wind fields resemble katabatic winds, with directions tied to underlying terrain and speeds dependent on slope of ice surface. Numerical simulation of strong wind event during austral autumn shows that katabatic component is only small fraction of horizontal pressure gradient force, suggesting that role of katabatic winds in Antarctic boundary layer may be overemphasized and the adjustment process between continental ice surface and ambient pressure field may be primary cause of Antarctic wind field.
541 0# ‡aParish, T.R. (gift)‡5UkCU-P
650 07 ‡a551.5 -- Meteorology.‡2udc
650 07 ‡a551.55 -- Wind and air turbulence.‡2udc
650 07 ‡a551.555.4 -- Katabatic winds, cold.‡2udc
650 07 ‡a551.4 -- Geomorphology.‡2udc
650 07 ‡a551.4.037 -- Slopes.‡2udc
650 07 ‡a551.54 -- Atmospheric pressure.‡2udc
650 07 ‡a91(08) -- Expeditions: 1955- US Antarctic Program.‡2udc
650 07 ‡aD -- Atmospheric sciences.‡2local
651 #7 ‡a(*7) -- Antarctic regions.‡2udc
651 #7 ‡a(*74) -- Australian Antarctic Territory.‡2udc
700 1# ‡aCassano, John J.
852 7# ‡2camdept‡bSCO‡cSPRI-PAM‡h(*7) : 551.55‡9Create 1 item record‡0Migrate
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