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Nitrogen deposition in the UK at 1 km resolution from 1990 to 2017
Earth System Science Data ( IF 11.2 ) Pub Date : 2021-10-13 , DOI: 10.5194/essd-13-4677-2021
Samuel J. Tomlinson , Edward J. Carnell , Anthony J. Dore , Ulrike Dragosits

An atmospheric chemistry transport model (FRAME) is used here to calculate annual UK N deposition for the years 1990–2017, at a 1 km × 1 km resolution. Reactive nitrogen (N) deposition is a threat that can lead to adverse effects on the environment and human health. In Europe, substantial reductions in N deposition from nitrogen oxide emissions have been achieved in recent decades. This paper quantifies reductions in UK N deposition following the N emissions peak in 1990. In the UK, estimates of N deposition are typically available at a coarse spatial resolution (typically 5 km × 5 km grid resolution), and it is often difficult to compare estimates between years due to methodological changes in emission estimates. Through efforts to reduce emissions of N from industry, traffic, and agriculture, this study predicts that UK N deposition has reduced from 465 kt N in 1990 to 278 kt N in 2017. However, as part of this overall reduction, there are non-uniform changes for wet and dry deposition of reduced N (NHx) and oxidised N (NOy). In 2017, it is estimated 59 % of all N deposition is in the form of reduced N, a change from 35 % in 1990. This dataset uses 28 years of emissions data from 1990 to 2017 to produce the first long-term dataset of 28 years of N deposition at 1 km × 1 km resolution in the UK. Full data are available at https://doi.org/10.5285/9b203324-6b37-4e91-b028-e073b197fb9f (Tomlinson et al., 2020).

中文翻译:

1990 年至 2017 年英国 1 公里分辨率的氮沉积

此处使用大气化学输运模型 (FRAME) 以 1 km ×  1 km 的分辨率计算 1990-2017 年英国的年度 N 沉积 。活性氮 (N) 沉积是一种威胁,会对环境和人类健康造成不利影响。在欧洲,近几十年来,氮氧化物排放导致的氮沉积大幅减少。本文量词削减英国氮沉降下列在1990年所述N个排放峰值在英国,N沉积的估计通常可在粗略的空间分辨率(通常5公里 × 5 公里网格分辨率),并且由于排放估算的方法变化,通常难以比较年份之间的估算。通过努力减少工业、交通和农业中的氮排放,本研究预测英国的氮沉积量已从 1990 年的 465 kt N 减少到 2017 年的 278 kt N。还原氮 ( NH x ) 和氧化氮( NO y ) 的湿沉积和干沉积的均匀变化。2017 年,估计所有 N 沉积的 59% 以减少 N 的形式出现,与 1990 年的 35% 相比有所变化。该数据集使用 1990 年至 2017 年 28 年的排放数据生成了第一个 28 年的长期数据集1 公里处的 N 沉积年数 × 1 公里分辨率在英国。完整数据可在 https://doi.org/10.5285/9b203324-6b37-4e91-b028-e073b197fb9f(Tomlinson 等人,2020 年)获得。
更新日期:2021-10-13
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