Overview of the Integrated Global Radiosonde Archive
Overview of the Integrated Global Radiosonde Archive
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DOI：
10.1175/jcli3594.1
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发表时间：
2006-01-01
影响因子：
4.9
通讯作者：
Wuertz, DB
中科院分区：
文献类型：
--
作者：
Durre, I;Vose, RS;Wuertz, DB
本文介绍了美国国家气候数据中心（NCDC）最新的全球综合探空数据集（IGRA）。IGRA包括在全球分布的1-500多个台站进行无线电探空仪和引航气球观测，这些台站有不同的记录时期，其中许多从1960年代一直延续到现在。观测包括在标准、地面、对流层顶和显著水平上的压力、温度、位势高度、露点降、风向和风速。IGRA包含来自不同来源的有质量保证的数据。采用严格的程序来确保正确的站点识别，消除探测中的重复电平，并为每个站点，日期和时间选择一个测深。质量保证算法检查格式问题、物理上不可信的值、变量之间的内部不一致、跨测深和水平的值运行、气候异常值以及温度的时间和垂直不一致。通过仔细检查选定的测深和时间序列来评估各种检查的性能。IGRA的最终形式是免费提供的最大和最全面的有质量保证的无线电探空观测数据集。其时空覆盖范围在美国、西欧、俄罗斯和澳大利亚最为完整。随着时间的推移，探测的垂直分辨率和范围显著提高，到2003年，接近四分之三的探测达到了至少100 hPa的Lip。IGRA数据每日更新，并可从NCDC在线获取，包括单个测深数据和月度数据。
This paper provides a general description of the Integrated Global Radiosonde Archive (IGRA), a new radiosonde dataset from the National Climatic Data Center (NCDC). IGRA consists of radiosonde and pilot balloon observations at more than 1-500 globally distributed stations with varying periods of record, many of which extend from the 1960s to present. Observations include pressure, temperature, geopotential height, dewpoint depression, wind direction, and wind speed at standard, surface, tropopause, and significant levels.IGRA contains quality-assured data from I I different sources. Rigorous procedures are employed to ensure proper station identification, eliminate duplicate levels within soundings, and select one sounding for every station, date, and time. The quality assurance algorithms check for format problems, physically implausible Values, internal inconsistencies among variables, runs of values across soundings and levels, climatological outliers, and temporal and vertical inconsistencies in temperature. The performance of the various checks was evaluated by careful inspection of selected soundings and time series.In its final form, IGRA is the largest and most comprehensive dataset of quality-assured radiosonde observations freely available. Its temporal and spatial coverage is most complete over the United States, western Europe, Russia, and Australia. The vertical resolution and extent Of Soundings improve significantly over time, with-nearly three-quarters of all soundings reaching Lip to at least 100 hPa by 2003. IGRA data are updated Oil a daily basis and are available online from NCDC as both individual Soundings and monthly means.