Bias Corrections for Historical Sea Surface Temperatures Based on Marine Air Temperatures
Bias Corrections for Historical Sea Surface Temperatures Based on Marine Air Temperatures
复制标题
基于海洋气温的历史海面温度偏差修正
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
R. Reynolds
中科院分区：
文献类型：
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作者：
Thomas M. Smith;R. Reynolds
由于20世纪40年代及更早时期SST采样方法的变化，早期SST相对于最近50年存在偏差。英国气象局公布的结果表明，需要对历史偏差进行校正，并开发了几种校正技术。本文利用综合海洋-大气数据集（COADS）的夜间海洋气温和SST观测资料，提出了一种独立的偏差校正方法。由于该方法独立于英国气象局提出的方法，因此差异表明不确定性，相似性表明用户可能对偏差校正更有信心。新方法给出的结果与英国气象局最新的偏倚估计大致一致。然而，与气象局的估计相比，这种偏差估计在北方半球具有更强的偏差年度周期。这两种估计都有中纬度的年周期，在寒冷的季节偏差最大，并且...
Abstract Because of changes in SST sampling methods in the 1940s and earlier, there are biases in the earlier period SSTs relative to the most recent 50 years. Published results from the Met Office have shown the need for historic bias correction and have developed several correction techniques. An independent bias-correction method is developed here from an analysis using nighttime marine air temperatures and SST observations from the Comprehensive Ocean–Atmosphere Data Set (COADS). Because this method is independent from methods proposed by the Met Office, the differences indicate uncertainties and similarities indicate where users may have more confidence in the bias correction. The new method gives results that are broadly consistent with the latest Met Office bias estimates. However, this bias estimate has a stronger annual cycle of bias in the Northern Hemisphere in comparison with the Met Office estimate. Both estimates have midlatitude annual cycles, with the greatest bias in the cold season, and ...