The Atmospheric Hydrologic Cycle over the Southern Ocean and Antarctica from Operational Numerical Analyses
The Atmospheric Hydrologic Cycle over the Southern Ocean and Antarctica from Operational Numerical Analyses
复制标题
通过数值分析了解南大洋和南极洲的大气水文循环
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
M. V. Woert
中科院分区：
文献类型：
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作者：
D. Bromwich;F. Robasky;R. Cullather;M. V. Woert
利用欧洲中期天气预报中心（ECMWF）、国家气象中心（NMC）和澳大利亚气象局（ABM）的业务数值分析，计算了南极洲和南大洋（40°-72 deg;S）的水汽收支。分析intebarcompared为8年的时间从1985年至1992年，并对代表rawinsonde网站，这被认为是准确的水分输送在这些网站的reciptions进行评估。通过与东南极探空仪和麦夸里岛探空仪的比较，表明ECMWF分析在再现各层探空值方面具有上级优势。虽然结果是高度可变的站的位置，协议的ECMWF分析纬向平均探空水分通量值沿着东南极海岸是非常接近的。例如，纬向平均的年纬向水汽通量在0.03 g kg−1 m s−1以内，即地表的2%。这是特别去…
Abstract Moisture budget calculations for Antarctica and the Southern Ocean (40°–72deg;S) are performed using operational numerical analyses from the European Centre for Medium-Range Weather Forecasts (ECMWF), the National Meteorological Center (NMC), and the Australian Bureau of Meteorology (ABM). The analyses are intetcompared for an 8-yr period from 1985 to 1992 and are evaluated against representative rawinsonde sites, which are considered accurate depictions of moisture transport at these sites. The comparisons to East Antarctic rawinsondes and those from Macquarie Island show the ECMWF analyses to be superior in reproducing sounding values at each level. While results are highly variable depending on the station location, agreement of the ECMWF analyses to zonally averaged sounding moisture flux values along the East Antarctic coast is very close. The zonally averaged annual meridional moisture flux, for example, is within as little as 0.03 g kg−1 m s−1, or 2% at the surface. This is particularly go...