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The Predictability Limit of Oceanic Mesoscale Eddy Tracks in the South China Sea 南海海洋中尺度涡迹的可预测性极限
IF 5.8 2区 地球科学
Advances in Atmospheric Sciences Pub Date : 2024-07-17 DOI: 10.1007/s00376-024-3250-7
Hailong Liu, Pingxiang Chu, Yao Meng, Mengrong Ding, Pengfei Lin, Ruiqiang Ding, Pengfei Wang, Weipeng Zheng
{"title":"The Predictability Limit of Oceanic Mesoscale Eddy Tracks in the South China Sea","authors":"Hailong Liu, Pingxiang Chu, Yao Meng, Mengrong Ding, Pengfei Lin, Ruiqiang Ding, Pengfei Wang, Weipeng Zheng","doi":"10.1007/s00376-024-3250-7","DOIUrl":"https://doi.org/10.1007/s00376-024-3250-7","url":null,"abstract":"<p>Employing the nonlinear local Lyapunov exponent (NLLE) technique, this study assesses the quantitative predictability limit of oceanic mesoscale eddy (OME) tracks utilizing three eddy datasets for both annual and seasonal means. Our findings reveal a discernible predictability limit of approximately 39 days for cyclonic eddies (CEs) and 44 days for anticyclonic eddies (AEs) within the South China Sea (SCS). The predictability limit is related to the OME properties and seasons. The long-lived, large-amplitude, and large-radius OMEs tend to have a higher predictability limit. The predictability limit of AE (CE) tracks is highest in autumn (winter) with 52 (53) days and lowest in spring (summer) with 40 (30) days. The spatial distribution of the predictability limit of OME tracks also has seasonal variations, further finding that the area of higher predictability limits often overlaps with periodic OMEs. Additionally, the predictability limit of periodic OME tracks is about 49 days for both CEs and AEs, which is 5–10 days higher than the mean values. Usually, in the SCS, OMEs characterized by high predictability limit values exhibit more extended and smoother trajectories and often move along the northern slope of the SCS.</p>","PeriodicalId":7249,"journal":{"name":"Advances in Atmospheric Sciences","volume":"138 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141720891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Convection-Permitting Simulations of Current and Future Climates over the Tibetan Plateau 青藏高原当前和未来气候的对流模拟
IF 5.8 2区 地球科学
Advances in Atmospheric Sciences Pub Date : 2024-07-17 DOI: 10.1007/s00376-024-3277-9
Liwei Zou, Tianjun Zhou
{"title":"Convection-Permitting Simulations of Current and Future Climates over the Tibetan Plateau","authors":"Liwei Zou, Tianjun Zhou","doi":"10.1007/s00376-024-3277-9","DOIUrl":"https://doi.org/10.1007/s00376-024-3277-9","url":null,"abstract":"<p>The Tibetan Plateau (TP) region, also known as the “Asian water tower”, provides a vital water resource for downstream regions. Previous studies of water cycle changes over the TP have been conducted with climate models of coarse resolution in which deep convection must be parameterized. In this study, we present results from a first set of high-resolution climate change simulations that permit convection at approximately 3.3-km grid spacing, with a focus on the TP, using the Icosahedral Nonhydrostatic Weather and Climate Model (ICON). Two 12-year simulations were performed, consisting of a retrospective simulation (2008–20) with initial and boundary conditions from ERA5 reanalysis and a pseudo-global warming projection driven by modified reanalysis-derived initial and boundary conditions by adding the monthly CMIP6 ensemble-mean climate change under the SSP5-8.5 scenario. The retrospective simulation shows overall good performance in capturing the seasonal precipitation and surface air temperature. Over the central and eastern TP, the average biases in precipitation (temperature) are less than −0.34 mm d<sup>−1</sup> (−1.1°C) throughout the year. The simulated biases over the TP are height-dependent. Cold (wet) biases are found in summer (winter) above 5500 m. The future climate simulation suggests that the TP will be wetter and warmer under the SSP5-8.5 scenario. The general features of projected changes in ICON are comparable to the CMIP6 ensemble projection, but the added value from kilometer-scale modeling is evident in both precipitation and temperature projections over complex topographic regions. These ICON-downscaled climate change simulations provide a high-resolution dataset to the community for the study of regional climate changes and impacts over the TP.</p>","PeriodicalId":7249,"journal":{"name":"Advances in Atmospheric Sciences","volume":"44 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141720894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Regional Climate Damage Quantification and Its Impacts on Future Emission Pathways Using the RICE Model 利用 RICE 模型进行地区气候损害量化及其对未来排放路径的影响
IF 5.8 2区 地球科学
Advances in Atmospheric Sciences Pub Date : 2024-07-17 DOI: 10.1007/s00376-024-3193-z
Shili Yang, Wenjie Dong, Jieming Chou, Yong Zhang, Weixing Zhao
{"title":"Regional Climate Damage Quantification and Its Impacts on Future Emission Pathways Using the RICE Model","authors":"Shili Yang, Wenjie Dong, Jieming Chou, Yong Zhang, Weixing Zhao","doi":"10.1007/s00376-024-3193-z","DOIUrl":"https://doi.org/10.1007/s00376-024-3193-z","url":null,"abstract":"<p>This study quantified the regional damages resulting from temperature and sea level changes using the Regional Integrated of Climate and Economy (RICE) model, as well as the effects of enabling and disabling the climate impact module on future emission pathways. Results highlight varied damages depending on regional economic development and locations. Specifically, China and Africa could suffer the most serious comprehensive damages caused by temperature change and sea level rise, followed by India, other developing Asian countries (OthAsia), and other high-income countries (OHI). The comprehensive damage fractions for China and Africa are projected to be 15.1% and 12.5% of gross domestic product (GDP) in 2195, with corresponding cumulative damages of 124.0 trillion and 87.3 trillion United States dollars (USD) from 2005 to 2195, respectively. Meanwhile, the comprehensive damage fractions in Japan, Eurasia, and Russia are smaller and projected to be lower than 5.6% of GDP in 2195, with cumulative damages of 6.8 trillion, 4.2 trillion, and 3.3 trillion USD, respectively. Additionally, coastal regions like Africa, the European Union (EU), and OHI show comparable damages for sea level rise and temperature change. In China, however, sea level-induced damages are projected to exceed those from temperature changes. Moreover, this study indicates that switching the damage modules on or off affects the regional and global emission trajectories, but the magnitude is relatively small. By 2195, global emissions under the experiments with all of the damage modules switched off, only the sea level damage module switched on, and only the temperature damage module switched on, were 3.5%, 2.3% and 1.2% higher than those with all of the damage modules switched on, respectively.</p>","PeriodicalId":7249,"journal":{"name":"Advances in Atmospheric Sciences","volume":"31 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141720896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of the Conditional Nonlinear Local Lyapunov Exponent to Second-Kind Predictability 条件非线性局部李亚普诺夫指数在第二类可预测性中的应用
IF 5.8 2区 地球科学
Advances in Atmospheric Sciences Pub Date : 2024-07-17 DOI: 10.1007/s00376-024-3297-5
Ming Zhang, Ruiqiang Ding, Quanjia Zhong, Jianping Li, Deyu Lu
{"title":"Application of the Conditional Nonlinear Local Lyapunov Exponent to Second-Kind Predictability","authors":"Ming Zhang, Ruiqiang Ding, Quanjia Zhong, Jianping Li, Deyu Lu","doi":"10.1007/s00376-024-3297-5","DOIUrl":"https://doi.org/10.1007/s00376-024-3297-5","url":null,"abstract":"<p>In order to quantify the influence of external forcings on the predictability limit using observational data, the author introduced an algorithm of the conditional nonlinear local Lyapunov exponent (CNLLE) method. The effectiveness of this algorithm is validated and compared with the nonlinear local Lyapunov exponent (NLLE) and signal-to-noise ratio methods using a coupled Lorenz model. The results show that the CNLLE method is able to capture the slow error growth constrained by external forcings, therefore, it can quantify the predictability limit induced by the external forcings. On this basis, a preliminary attempt was made to apply this method to measure the influence of ENSO on the predictability limit for both atmospheric and oceanic variable fields. The spatial distribution of the predictability limit induced by ENSO is similar to that arising from the initial conditions calculated by the NLLE method. This similarity supports ENSO as the major predictable signal for weather and climate prediction. In addition, a ratio of predictability limit (RPL) calculated by the CNLLE method to that calculated by the NLLE method was proposed. The RPL larger than 1 indicates that the external forcings can significantly benefit the long-term predictability limit. For instance, ENSO can effectively extend the predictability limit arising from the initial conditions of sea surface temperature over the tropical Indian Ocean by approximately four months, as well as the predictability limit of sea level pressure over the eastern and western Pacific Ocean. Moreover, the impact of ENSO on the geopotential height predictability limit is primarily confined to the troposphere.</p>","PeriodicalId":7249,"journal":{"name":"Advances in Atmospheric Sciences","volume":"4 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141720889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Wintertime Arctic Sea-Ice Decline Related to Multi-Year La Niña Events 冬季北极海冰下降与多年拉尼娜现象有关
IF 5.8 2区 地球科学
Advances in Atmospheric Sciences Pub Date : 2024-07-17 DOI: 10.1007/s00376-024-3194-y
Wenxiu Zhong, Qian Shi, Qinghua Yang, Jiping Liu, Song Yang
{"title":"Wintertime Arctic Sea-Ice Decline Related to Multi-Year La Niña Events","authors":"Wenxiu Zhong, Qian Shi, Qinghua Yang, Jiping Liu, Song Yang","doi":"10.1007/s00376-024-3194-y","DOIUrl":"https://doi.org/10.1007/s00376-024-3194-y","url":null,"abstract":"<p>Arctic sea ice has undergone a significant decline in the Barents–Kara Sea (BKS) since the late 1990s. Previous studies have shown that the decrease in sea ice caused by increased poleward moisture transport is modulated by tropical sea temperature changes (mainly referring to La Niña events). The occurrence of multi-year La Niña (MYLA) events has increased significantly in recent decades, and their impact on Arctic sea ice needs to be further explored. In this study, we investigate the relationship between sea-ice variation and different atmospheric diagnostics during MYLA and other La Niña (OTLA) years. The decline in BKS sea ice during MYLA winters is significantly stronger than that during OTLA years. This is because MYLA events tend to be accompanied by a warm Arctic–cold continent pattern with a barotropic high pressure blocked over the Urals region. Consequently, more frequent northward atmospheric rivers intrude into the BKS, intensifying longwave radiation downward to the underlying surface and melting the BKS sea ice. However, in the early winter of OTLA years, a negative North Atlantic Oscillation presents in the high latitudes of the Northern Hemisphere, which obstructs the atmospheric rivers to the south of Iceland. We infer that such a different response of BKS sea-ice decline to different La Niña events is related to stratospheric processes. Considering the rapid climate changes in the past, more frequent MYLA events may account for the substantial Arctic sea-ice loss in recent decades.</p>","PeriodicalId":7249,"journal":{"name":"Advances in Atmospheric Sciences","volume":"50 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141720890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microphysical Characteristics of Rainfall Based on Long-Term Observations with a 2DVD in Yangbajain, Tibet 基于西藏羊八井 2DVD 长期观测的降雨微物理特征
IF 5.8 2区 地球科学
Advances in Atmospheric Sciences Pub Date : 2024-07-17 DOI: 10.1007/s00376-024-3299-3
Ming Li, Yongheng Bi, Yonghai Shen, Yinan Wang, Ciren Nima, Tianlu Chen, Daren Lyu
{"title":"Microphysical Characteristics of Rainfall Based on Long-Term Observations with a 2DVD in Yangbajain, Tibet","authors":"Ming Li, Yongheng Bi, Yonghai Shen, Yinan Wang, Ciren Nima, Tianlu Chen, Daren Lyu","doi":"10.1007/s00376-024-3299-3","DOIUrl":"https://doi.org/10.1007/s00376-024-3299-3","url":null,"abstract":"<p>Raindrop size distribution (DSD) plays a crucial role in enhancing the accuracy of radar quantitative precipitation estimates in the Tibetan Plateau (TP). However, there is a notable scarcity of long-term, high-resolution observations in this region. To address this issue, long-term observations from a two-dimensional video disdrometer (2DVD) were leveraged to refine the radar and satellite-based algorithms for quantifying precipitation in the hinterland of the TP. It was observed that weak precipitation (<i>R</i>&lt;1, mm h<sup>−1</sup>) accounts for 86% of the total precipitation time, while small raindrops (<i>D</i>&lt;2 mm) comprise 99% of the total raindrop count. Furthermore, the average spectral width of the DSD increases with increasing rain rate. The DSD characteristics of convective and stratiform precipitation were discussed across five different rain rates, revealing that convective precipitation in Yangbajain (YBJ) exhibits characteristics similar to maritime-like precipitation. The constrained relationships between the slope Λ and shape <i>μ</i>, <i>D</i><sub><i>m</i></sub> and <i>N</i><sub><i>w</i></sub> of gamma DSDs were derived. Additionally, we established a correlation between the equivalent diameter and drop axis ratio and found that raindrops on the TP attain a nearly spherical shape. Consequently, the application of the rainfall retrieval algorithms of the dual-frequency precipitation radar in the TP is improved based on the statistical results of the DSD.</p>","PeriodicalId":7249,"journal":{"name":"Advances in Atmospheric Sciences","volume":"12 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141720892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improving Optimal Fingerprinting Methods Requires a Viewpoint beyond Statistical Science 改进最佳指纹识别方法需要超越统计科学的视角
IF 5.8 2区 地球科学
Advances in Atmospheric Sciences Pub Date : 2024-07-03 DOI: 10.1007/s00376-024-4175-x
Jianhua Lu
{"title":"Improving Optimal Fingerprinting Methods Requires a Viewpoint beyond Statistical Science","authors":"Jianhua Lu","doi":"10.1007/s00376-024-4175-x","DOIUrl":"https://doi.org/10.1007/s00376-024-4175-x","url":null,"abstract":"<p>While being successful in the detection and attribution of climate change, the optimal fingerprinting method (OFM) may have some limitations from a physics-and-dynamics-based viewpoint. Here, an analysis is made on the linearity, non-interaction, and stationary-variability assumptions adopted by OFM. It is suggested that furthering OFM needs a viewpoint beyond statistical science, and the method should be combined with theoretical tools in the dynamics and physics of the Earth system, so as to be applied for the detection and attribution of nonlinear climate change including tipping elements within the Earth system.</p>","PeriodicalId":7249,"journal":{"name":"Advances in Atmospheric Sciences","volume":"41 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141522600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Scaling Laws Behind Penetrative Turbulence: History and Perspectives 穿透性湍流背后的缩放定律:历史与展望
IF 5.8 2区 地球科学
Advances in Atmospheric Sciences Pub Date : 2024-07-02 DOI: 10.1007/s00376-024-4014-0
Zijing Ding, Ruiqi Huang, Zhen Ouyang
{"title":"Scaling Laws Behind Penetrative Turbulence: History and Perspectives","authors":"Zijing Ding, Ruiqi Huang, Zhen Ouyang","doi":"10.1007/s00376-024-4014-0","DOIUrl":"https://doi.org/10.1007/s00376-024-4014-0","url":null,"abstract":"<p>An unstably stratified flow entering into a stably stratified flow is referred to as penetrative convection, which is crucial to many physical processes and has been thought of as a key factor for extreme weather conditions. Past theoretical, numerical, and experimental studies on penetrative convection are reviewed, along with field studies providing insights into turbulence modeling. The physical factors that initiate penetrative convection, including internal heat sources, nonlinear constitutive relationships, centrifugal forces and other complicated factors are summarized. Cutting-edge methods for understanding transport mechanisms and statistical properties of penetrative turbulence are also documented, e.g., the variational approach and quasilinear approach, which derive scaling laws embedded in penetrative turbulence. Exploring these scaling laws in penetrative convection can improve our understanding of large-scale geophysical and astrophysical motions. To better the model of penetrative turbulence towards a practical situation, new directions, e.g., penetrative convection in spheres, and radiation-forced convection, are proposed.</p>","PeriodicalId":7249,"journal":{"name":"Advances in Atmospheric Sciences","volume":"20 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141522604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantifying the Role of the Eddy Transfer Coefficient in Simulating the Response of the Southern Ocean Meridional Overturning Circulation to Enhanced Westerlies in a Coarse-resolution Model 在粗分辨率模式中量化涡传递系数在模拟南大洋经向翻转环流对增强西风的响应中的作用
IF 5.8 2区 地球科学
Advances in Atmospheric Sciences Pub Date : 2024-07-01 DOI: 10.1007/s00376-024-3278-8
Yiwen Li, Hailong Liu, Pengfei Lin, Eric P. Chassignet, Zipeng Yu, Fanghua Wu
{"title":"Quantifying the Role of the Eddy Transfer Coefficient in Simulating the Response of the Southern Ocean Meridional Overturning Circulation to Enhanced Westerlies in a Coarse-resolution Model","authors":"Yiwen Li, Hailong Liu, Pengfei Lin, Eric P. Chassignet, Zipeng Yu, Fanghua Wu","doi":"10.1007/s00376-024-3278-8","DOIUrl":"https://doi.org/10.1007/s00376-024-3278-8","url":null,"abstract":"<p>This study assesses the capability of a coarse-resolution ocean model to replicate the response of the Southern Ocean Meridional Overturning Circulation (MOC) to intensified westerlies, focusing on the role of the eddy transfer coefficient (<i>κ</i>). <i>κ</i> is a parameter commonly used to represent the velocities induced by unresolved eddies. Our findings reveal that a stratification-dependent <i>κ</i>, incorporating spatiotemporal variability, leads to the most robust eddy-induced MOC response, capturing 82% of the reference eddy-resolving simulation. Decomposing the eddy-induced velocity into its vertical variation (VV) and spatial structure (SS) components unveils that the enhanced eddy compensation response primarily stems from an augmented SS term, while the introduced VV term weakens the response. Furthermore, the temporal variability of the stratification-dependent <i>κ</i> emerges as a key factor in enhancing the eddy compensation response to intensified westerlies. The experiment with stratification-dependent <i>κ</i> exhibits a more potent eddy compensation response compared to the constant <i>κ</i>, attributed to the structure of <i>κ</i> and the vertical variation of the density slope. These results underscore the critical role of accurately representing <i>κ</i> in capturing the response of the Southern Ocean MOC and emphasize the significance of the isopycnal slope in modulating the eddy compensation mechanism.</p>","PeriodicalId":7249,"journal":{"name":"Advances in Atmospheric Sciences","volume":"23 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141522601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Refining the Factors Affecting N2O Emissions from Upland Soils with and without Nitrogen Fertilizer Application at a Global Scale 在全球范围内完善影响施用和未施用氮肥的陆地土壤一氧化二氮排放量的因素
IF 5.8 2区 地球科学
Advances in Atmospheric Sciences Pub Date : 2024-07-01 DOI: 10.1007/s00376-024-3234-7
Wenqian Jiang, Siqi Li, Yong Li, Meihui Wang, Bo Wang, Ji Liu, Jianlin Shen, Xunhua Zheng
{"title":"Refining the Factors Affecting N2O Emissions from Upland Soils with and without Nitrogen Fertilizer Application at a Global Scale","authors":"Wenqian Jiang, Siqi Li, Yong Li, Meihui Wang, Bo Wang, Ji Liu, Jianlin Shen, Xunhua Zheng","doi":"10.1007/s00376-024-3234-7","DOIUrl":"https://doi.org/10.1007/s00376-024-3234-7","url":null,"abstract":"<p>Nitrous oxide (N<sub>2</sub>O) is a long-lived greenhouse gas that mainly originates from agricultural soils. More and more studies have explored the sources, influencing factors and effective mitigation measures of N<sub>2</sub>O in recent decades. However, the hierarchy of factors influencing N<sub>2</sub>O emissions from agricultural soils at the global scale remains unclear. In this study, we carry out correlation and structural equation modeling analysis on a global N<sub>2</sub>O emission dataset to explore the hierarchy of influencing factors affecting N<sub>2</sub>O emissions from the nitrogen (N) and non-N fertilized upland farming systems, in terms of climatic factors, soil properties, and agricultural practices. Our results show that the average N<sub>2</sub>O emission intensity in the N fertilized soils (17.83 g N ha<sup>−1</sup> d<sup>−1</sup>) was significantly greater than that in the non-N fertilized soils (5.34 g N ha<sup>−1</sup> d<sup>−1</sup>) (<i>p</i>&lt; 0.001). Climate factors and agricultural practices are the most important influencing factors on N<sub>2</sub>O emission in non-N and N fertilized upland soils, respectively. For different climatic zones, without fertilizer, the primary influence factors on soil N<sub>2</sub>O emissions are soil physical properties in subtropical monsoon zone, whereas climatic factors are key in the temperate zones. With fertilizer, the primary influence factors for subtropical monsoon and temperate continental zones are soil physical properties, while agricultural measures are the main factors in the temperate monsoon zone. Deploying enhanced agricultural practices, such as reduced N fertilizer rate combined with the addition of nitrification and urease inhibitors can potentially mitigate N<sub>2</sub>O emissions by more than 60% in upland farming systems.</p>","PeriodicalId":7249,"journal":{"name":"Advances in Atmospheric Sciences","volume":"205 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141522602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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