Comparison of Tropospheric Temperatures Derived from the NCEP/NCAR Reanalysis, NCEP Operational Analysis, and the Microwave Sounding Unit
Comparison of Tropospheric Temperatures Derived from the NCEP/NCAR Reanalysis, NCEP Operational Analysis, and the Microwave Sounding Unit
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DOI：
10.1175/1520-0477(1997)078
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发表时间：
1997-07
影响因子：
8
通讯作者：
A. Basist;M. Chelliah
中科院分区：
文献类型：
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作者：
A. Basist;M. Chelliah
摘要自1979年以来，气候预测中心一直使用大气温度来分析国家环境预测中心（NCEP）模型的数据。不幸的是，模式的变化对气候场的稳定性产生了不利影响，在气候诊断数据库（CDDB）的异常模式中引入了随时间变化的偏差。幸运的是，NCEP已经解决了这个问题，重新运行了一个最先进的模式，使用固定的同化，参数化和物理，以获得真正的气候和异常。作者将以前的CDDB温度与稳定再分析的温度进行了比较。结果表明，气候诊断和监测有了重大改进。还比较了再分析温度与由美国国家海洋和大气管理局（NOAA）极地轨道卫星系列（TIROS-N至NOAA-14）上的微波探测装置（MSU）观测到的亮度温度Tb。该MSU数据集具有abo...
Abstract The Climate Prediction Center has used atmospheric temperatures for data analysis from the National Centers for Environmental Prediction (NCEP) model since 1979. Unfortunately, model changes have adversely affected the stability of the climatologic fields, introducing time-varying biases in the anomaly patterns of the Climate Diagnostic Data Base (CDDB). Fortunately, NCEP has addressed this issue by rerunning a state-of-the-art model using fixed assimilation, parameterization, and physics in order to derive a true climatology and anomalies. The authors compare the previous CDDB temperatures with those derived from the stable reanalysis. Results show major improvements for climate diagnostics and monitoring. Also compared are the reanalysis temperatures with brightness temperature Tb observed by the Microwave Sounding Units (MSU), flown aboard the National Oceanic and Atmospheric Administration (NOAA) series of polar-orbiting satellites (TIROS-N to NOAA-14). This MSU dataset has a precision of abo...