Global surface skin temperature has been retrieved from MetOp IASI ultraspectral infrared measurements over the past 13+ years. Monthly and spatially gridded surface skin temperature is produced to show some phenomena associated with its natural variability. This article has aimed to demonstrate that thermal infrared remote sensing data can be used for monitoring global surface environmental characteristics and associated change through the continuity observations of MetOp series. The time-series anomalies of surface skin temperature are used to estimate its associated trend. Error estimation and evaluation has been performed and discussed in order to understand the uncertainty and variability in the trends. The trends derived from IASI global surface skin temperatures are compared with those of the NASA GISS global surface air temperature. Despite the physical differences between surface skin and air temperatures, reasonable agreement is shown between these two datasets indicating consistency and global surface warming, achieving our core objective of investigating the surface skin temperature retrieved from MetOp satellites’ measurements and associated trends. The inferred trend of IASI global surface skin temperature illustrates an approximate 0.037±0.002 K/yr. global average increase has occurred during the September 2007—present (November 2020) time period; this warming trend is more pronounced in the northern hemisphere.

中文翻译：

---

MetOp 卫星上 IASI 的表面皮肤温度及其趋势观测

在过去 13 多年里，全球表面皮肤温度已从 MetOp IASI 超光谱红外测量中检索出来。产生每月和空间网格表面皮肤温度以显示与其自然变化相关的一些现象。本文旨在通过 MetOp 系列的连续观测来证明热红外遥感数据可用于监测全球地表环境特征和相关变化。表面皮肤温度的时间序列异常用于估计其相关趋势。为了了解趋势中的不确定性和可变性，已经进行并讨论了误差估计和评估。来自 IASI 全球地表皮肤温度的趋势与 NASA GISS 全球地表气温的趋势进行了比较。尽管表面皮肤温度和空气温度之间存在物理差异，但这两个数据集之间显示出合理的一致性，表明一致性和全球表面变暖，实现了我们调查从 MetOp 卫星测量和相关趋势中检索到的表面皮肤温度的核心目标。IASI 全球表面皮肤温度的推断趋势表明大约为 0.037±0.002 K/yr。全球平均增长发生在 2007 年 9 月至现在（2020 年 11 月）期间；这种变暖趋势在北半球更为明显。实现我们的核心目标，即调查从 MetOp 卫星的测量和相关趋势中检索到的表面皮肤温度。IASI 全球表面皮肤温度的推断趋势表明大约为 0.037±0.002 K/yr。全球平均增长发生在 2007 年 9 月至现在（2020 年 11 月）期间；这种变暖趋势在北半球更为明显。实现我们的核心目标，即调查从 MetOp 卫星的测量和相关趋势中检索到的表面皮肤温度。IASI 全球表面皮肤温度的推断趋势表明大约为 0.037±0.002 K/yr。全球平均增长发生在 2007 年 9 月至现在（2020 年 11 月）期间；这种变暖趋势在北半球更为明显。