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CLASSnmat: A global night marine air temperature data set, 1880–2019
Geoscience Data Journal ( IF 3.3 ) Pub Date : 2020-07-31 , DOI: 10.1002/gdj3.100
Richard C. Cornes 1 , Elizabeth.C. Kent 1 , David.I. Berry 1 , John J. Kennedy 2
Affiliation  

A new data set of Night Marine Air Temperature (NMAT) is presented that builds on the HadNMAT2 data set, which was released in 2013. In a similar manner to HadNMAT2, the new data set (CLASSnmat) provides uninterpolated, monthly global values at a 5° resolution back to 1880. In addition to being extended to the end of 2019, four main developments are made in CLASSnmat: (1) the NMAT values are extracted from the most recent version of the International Comprehensive Ocean‐Atmosphere Data Set (ICOADS Release 3) and a revised method of eliminating duplicated observations is used; (2) values of NMAT are adjusted to 2m and 20m heights in addition to the 10 m height used in HadNMAT2; (3) a refinement is made to the corrections necessary during World War 2, which uses more of the NMAT observations and hence results in a more extensive spatial coverage for this period than was possible in HadNMAT2; (4) an updated gridding method is used that allows for an improved propagation of uncertainty from the individual NMAT values through to the gridded estimates. In this paper, the method used to construct CLASSnmat (version 1.0.0.0) is described.

中文翻译:

CLASSnmat:1880–2019年全球夜间海洋气温数据集

在2013年发布的HadNMAT2数据集的基础上,提出了一个新的夜间海洋气温(NMAT)数据集。与HadNMAT2相似,该新数据集(CLASSnmat)提供了一个非插值的每月全球值5°分辨率可追溯到1880年。除了扩展到2019年底,CLASSnmat还进行了四项主要开发:(1)NMAT值是从最新版本的国际海洋和大气数据集(ICOADS)中提取的版本3)和使用了消除重复观测值的修订方法;(2)除了HadNMAT2中使用的10 m高度之外,还将NMAT的值调整为2m和20m高度;(3)对第二次世界大战期间必要的修正进行了细化。它使用了更多的NMAT观测结果,因此与HadNMAT2相比,此期间的空间覆盖范围更广;(4)使用了一种更新的网格化方法,该方法可以改善不确定性从各个NMAT值到网格化估计的传播。在本文中,描述了用于构造CLASSnmat(1.0.0.0版)的方法。
更新日期:2020-07-31
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