Atmosfera最新文献_第3页

Urban PM2.5 concentrations in a small Colombian city and the impact associated with particle emissions generated by small-scale lime production 哥伦比亚一个小城市的PM2.5浓度及其与小规模石灰生产产生的颗粒排放相关的影响

4区地球科学

Atmosfera Pub Date : 2023-06-05 DOI: 10.20937/atm.53212

Rafael Contreras Rengifo, Lilibeth Escobar Jiménez, María Camila Belalcazar Franco, Pedro José García Delgado, Lars Gidhagen, José Joaquín Vivas Moreno

{"title":"Urban PM2.5 concentrations in a small Colombian city and the impact associated with particle emissions generated by small-scale lime production","authors":"Rafael Contreras Rengifo, Lilibeth Escobar Jiménez, María Camila Belalcazar Franco, Pedro José García Delgado, Lars Gidhagen, José Joaquín Vivas Moreno","doi":"10.20937/atm.53212","DOIUrl":"https://doi.org/10.20937/atm.53212","url":null,"abstract":"The stricter guidelines for fine particles PM2.5 recently published by the World Health Organization also motivate smaller cities to assess the exposure levels. In this study, PM2.5 was assessed in the municipality of Vijes, an important lime production center in the Cauca River Valley, Colombia. The main objective was to determine PM2.5 concentration levels in the urban background of the city and to estimate the contribution from industrial sources located west of the urbanized area. The assessment of PM2.5 concentrations in a city without fixed air quality monitors, meteorological stations, and information on emission sources, was designed to be expedient and possible to perform with a very restricted budget. Four low-cost optical sensors and one low-cost meteorological station were installed during two separate campaigns, each three to four months long. The PM2.5 measurements were analyzed with the support of meteorological data and dispersion modeling. Mean levels of PM2.5 in the urban background were found to be below the Colombian limit value of 25 µg m–3, in the range of 14 to 19 µg m–3, and with lower levels in the city center. The monitor located in the westernmost urban area, closest to the industrial plants, registered a high 24-h mean level close to the national limit value. The industrial contribution to long-term PM2.5 concentrations in the urban background of Vijes was estimated to be within a maximum of 6 µg m–3, i.e., a minor fraction of the monitored PM2.5 mean levels in the urban background. The dominating part of the PM2.5 concentrations could be attributed to other anthropogenic sources within or east of Vijes, as well as originating from the regional background concentration characterizing the Cauca River Valley to the east of Vijes, where pre-harvest sugar cane burning is common.","PeriodicalId":55576,"journal":{"name":"Atmosfera","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135657263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Will Mexico meet its climate commitments? 墨西哥会履行其气候承诺吗?

IF 1.4 4区地球科学

Atmosfera Pub Date : 2023-05-12 DOI: 10.20937/atm.53174

X. Cruz-Nuñez

{"title":"Will Mexico meet its climate commitments?","authors":"X. Cruz-Nuñez","doi":"10.20937/atm.53174","DOIUrl":"https://doi.org/10.20937/atm.53174","url":null,"abstract":"In its Nationally Determined Contribution (NDC), Mexico is committed to reducing unconditionally 22 and 51% of its emissions of greenhouse gases (GHGs) and black carbon, respectively, by 2030, with an emission peak in 2026. Additional reductions of 36 and 70%, respectively, are proposed conditioned to support from other parties. In this work, the percentage of reduction to reach the emission mitigation targets that Mexico proposed in its NDC is estimated. The results show that in order to meet its unconditional NDC, Mexico should start mitigation in 2020 with a 1.5% reduction rate until 2030 and a 3.3% reduction rate by 2050, to reach an emission peak in 2023. To meet the conditional NDC, a 3.1% emission reduction rate until 2030 should be applied, with peak emission in 2021, and 5.8% from 2030 to 2050. In none of these estimates an emission peak in 2026 matches the NDC mitigation options. Furthermore, none of the emissions reduction pathways estimated in this study fulfills the conditional or unconditional contribution and peaks in 2026 at the same time. Mexico has a long history in international climate policy and is a key emerging economy among the top 15 highest GHG emitters. If Mexico does not achieve its NDC, the international implications, both political and climatic, could put the NDC model at risk if there are more large emitters that do not comply with their contribution.","PeriodicalId":55576,"journal":{"name":"Atmosfera","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49127608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Effects of climate change on the potential distribution of a dominant, widely distributed oak species, Quercus candicans, in Mexico 气候变化对墨西哥主要、广泛分布的栎属植物的潜在分布的影响

IF 1.4 4区地球科学

Atmosfera Pub Date : 2023-05-12 DOI: 10.20937/atm.53182

Diego Brizuela‐Torres, Raymundo Villavicencio-García, J. A. Ruiz-Corral, Á. Cuervo-Robayo

{"title":"Effects of climate change on the potential distribution of a dominant, widely distributed oak species, Quercus candicans, in Mexico","authors":"Diego Brizuela‐Torres, Raymundo Villavicencio-García, J. A. Ruiz-Corral, Á. Cuervo-Robayo","doi":"10.20937/atm.53182","DOIUrl":"https://doi.org/10.20937/atm.53182","url":null,"abstract":"Mexican temperate forests are among the most biodiverse in the world. At present, they face anthropogenic pressures and climatic changes. Quercus candicans is a canopy-dominant, widely distributed species common in the moist habitats of these ecosystems. Its ecological importance, habitat vulnerability, and wide distribution make it a useful model of the vulnerability of Mexican tree forest species to climate change. We used ecological niche modeling to estimate future climatic suitability for this species and its potential range shifts under two emissions scenarios and three-time frames. We also identified areas where novel climates could arise and where predictions should be interpreted cautiously. Additionally, we analyzed how climatic suitability could change across the national protected areas system. In both emissions scenarios, areas with suitable climatic conditions were predicted to experience a net reduction of more than 40% by 2070. This corresponds to more than 100 000 km2 becoming climatically unsuitable. In the national protected areas, we forecast a contraction of approximately 30%. Climatic novelty increased considerably in the higher emissions scenario (RCP 8.5), accounting for 10% of the Mexican temperate mountains, compared to 1% on RCP 4.5. Areas of expansion of suitability not intersected by novel climates occur in areas highly affected by land-use change and other anthropogenic pressures. Effective protection of temperate forests’ tree species such as Q. candicans would need to allow migrations across altitudinal gradients, as areas of stability and expansion of climatic suitability are forecasted to occur at higher altitude sections of mountain ranges.","PeriodicalId":55576,"journal":{"name":"Atmosfera","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49347720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

The AMS Global Partners Program AMS全球合作伙伴计划

IF 1.4 4区地球科学

Atmosfera Pub Date : 2022-10-27 DOI: 10.20937/atm.53238

W. Dabberdt, D. Baumgardner

引用次数: 0

Development of high-resolution annual climate surfaces for Turkey using ANUSPLIN and comparison with other methods 利用ANUSPLIN开发土耳其高分辨率年度气候面并与其他方法进行比较

IF 1.4 4区地球科学

Atmosfera Pub Date : 2022-09-29 DOI: 10.20937/atm.53189

I. Yener

{"title":"Development of high-resolution annual climate surfaces for Turkey using ANUSPLIN and comparison with other methods","authors":"I. Yener","doi":"10.20937/atm.53189","DOIUrl":"https://doi.org/10.20937/atm.53189","url":null,"abstract":"Many climate models have been developed because of the importance of climatic factors' effects on the physical and biological environment, e.g., rock weathering, species distribution, and growth patterns of plants. Accurate, reliable climate surfaces are necessary, especially for countries such as Turkey, which has a complex terrain and limited monitoring stations. The accuracy of these models mainly depends on the spatial modeling methods used. In this study, Australian National University spline (ANUSPLIN) model was used to develop climate surfaces and was compared with other methods such as inverse distance weighting, Co-Kriging, lapse rate, and multilinear regression. The results from the developed climate surfaces were validated using three methods: (1) diagnostic statistics from the surface fitting model, such as signal, mean, root mean square predictive error, root mean square error estimate, root mean square residual of the spline, and estimate of the standard deviation of the noise in the spline; (2) a comparison of error statistics between interpolated surfaces with and the withheld climate data from 81 stations; and (3) a comparison with other interpolation methods using model performance metrics, such as mean absolute error, mean error, root mean square error, and R2adj. The most accurate results were obtained by the ANUSPLIN model. It explained 95%, 88%, 92%, and 71% of the variance in annual mean, minimum and maximum temperature, and total precipitation, respectively. The mean absolute error of these models was 0.63 °C, 1.16 °C, 0.72 °C, and 54.82 mm. The generated climate surfaces, having a spatial resolution of 0.005º x 0.005º could contribute to the fields of forestry, agriculture, and hydrology.","PeriodicalId":55576,"journal":{"name":"Atmosfera","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67656217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 2

Spatiotemporal distributions of ultraviolet radiation from OMI orbital data and relationships with Total O3 and Total NO2Spatiotemporal distributions of ultraviolet radiation from OMI orbital data and relationships with Total O3 and Total NO2 OMI轨道数据紫外辐射时空分布及其与总O3和总NO2的关系

IF 1.4 4区地球科学

Atmosfera Pub Date : 2022-09-29 DOI: 10.20937/atm.53159

Adriana Becerra Rondón, J. Ducati, R. Haag

{"title":"Spatiotemporal distributions of ultraviolet radiation from OMI orbital data and relationships with Total O3 and Total NO2Spatiotemporal distributions of ultraviolet radiation from OMI orbital data and relationships with Total O3 and Total NO2","authors":"Adriana Becerra Rondón, J. Ducati, R. Haag","doi":"10.20937/atm.53159","DOIUrl":"https://doi.org/10.20937/atm.53159","url":null,"abstract":"Ultraviolet radiation (UVR) plays a key role in the photochemistry of the atmosphere, through absorption or dispersion processes by its constituents (ozone, cloudiness, aerosols, and pollutants in the troposphere). Quantifying UVR in a spatial-temporal way and knowing its relationships with modulating variables is important for Rio Grande do Sul State, a region with one of the highest skin neoplasms rates in Brazil. Ultraviolet radiation data for the region, acquired by the Ozone Monitoring Instrument (OMI) for the 2006 to 2020 period, and expressed in terms of Erythemal Daily Dose (EDD), was used in this study, with the objectives of quantifying UVR incidence, its stability in time and spatial distribution. Our results show that for this study area the radiation varies from 3300 to 3700 J/m2, with a latitudinal gradient of 66.7 J/m2 per degree, with maxima recorded in December (6028 J/m2, summer) and minima in June (1123 J/m2, winter). 29.76% of the area had a long-term decreasing trend (z value =5), while 6.19% of the area had an increasing trend (z value=2). During the studied period of fifteen years, occurrences of high values of Erythemal Daily Dose are negatively correlated with Total O3 as the dominant relationship, being also recorded positive or negative correlations with Total NO2, depending of the investigated epoch or region.","PeriodicalId":55576,"journal":{"name":"Atmosfera","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67656248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Synoptic characteristics of the spatial variability of spring dust storms over Saudi Arabia 沙特阿拉伯春季沙尘暴空间变率的天气学特征

IF 1.4 4区地球科学

Atmosfera Pub Date : 2022-09-29 DOI: 10.20937/atm.53167

Khaled A. Al-abbasi, A. Labban, A. Awad

{"title":"Synoptic characteristics of the spatial variability of spring dust storms over Saudi Arabia","authors":"Khaled A. Al-abbasi, A. Labban, A. Awad","doi":"10.20937/atm.53167","DOIUrl":"https://doi.org/10.20937/atm.53167","url":null,"abstract":"Statistical and synoptic studies of spring dust storms over the Arabian Peninsula (AP) were performed using surface observations from 27 surface stations and meteorological data from the NCEP/NCAR reanalysis data set for the period from 1978 to 2008. The study showed that, spatially, the northern and eastern AP are the most affected by dust storms and that, temporally, the study period can be divided into two subperiods before and after 1995, with a pronounced increase before 1995 and a smooth increase (decrease) after 1995 with respect to dust (dust storms) types. The synoptic study reveals three main atmospheric systems: frontal systems over the northern region, Red Sea Trough (RST)-related systems over the western region and thermal low systems over the eastern region. Additionally, the synoptic study shows that all of the atmospheric systems are associated with a favorable pressure (geopotential) gradient area and that the shape and strength of the maximum wind and upper-layer atmospheric regimes are suitable for completely integrating the atmospheric layers. Moreover, the southern thermal low is a common synoptic component of dust-related atmospheric systems, but its effect is particularly pronounced on the atmospheric system of the eastern region.","PeriodicalId":55576,"journal":{"name":"Atmosfera","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67656445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Very high erythemal doses of ultraviolet radiation around solar noon measured in Arica, northern Chile 在智利北部的阿利卡，太阳午时测量到非常高的红斑紫外线辐射剂量

IF 1.4 4区地球科学

Atmosfera Pub Date : 2022-09-29 DOI: 10.20937/atm.53184

M. Rivas, E. Rojas, D. Laroze, L. Pérez, M. de Paula Corrêa

引用次数: 0

Classification of wintertime daily atmospheric circulation patterns over Brazil 巴西冬季日大气环流型的分类

IF 1.4 4区地球科学

Atmosfera Pub Date : 2022-09-29 DOI: 10.20937/atm.53176

G. Escobar

引用次数: 0

Historical Change of Winter Chill Accumulation in Some Regions of Turkey 土耳其部分地区冬季寒积的历史变化

IF 1.4 4区地球科学

Atmosfera Pub Date : 2022-09-29 DOI: 10.20937/atm.53135

H. Karadağ, K. Yıldız, K. Yürekli

{"title":"Historical Change of Winter Chill Accumulation in Some Regions of Turkey","authors":"H. Karadağ, K. Yıldız, K. Yürekli","doi":"10.20937/atm.53135","DOIUrl":"https://doi.org/10.20937/atm.53135","url":null,"abstract":"Deciduous fruit trees need to be exposed to low winter temperatures for a certain period time to produce regular crops. In addition to the effects of global warming in many other areas, its effect on cold accumulation is also a reason of concern. As a result, many studies have been carried out in important horticultural areas around the world on the impact of climate change on cold accumulation. In this study, historical changes of cold accumulation calculated using five models were examined in 12 locations in Turkey for the first time. Results show that there was no significant trend in cold accumulation in the provinces of Ankara, Bingöl, Diyarbakır, Malatya, and Tunceli. In some locations, the significance, magnitude, and direction of the chilling trend differed according to the model used. All five models used in the study indicated significant decreases in winter chill accumulation in Şanlıurfa, a site with relatively mild winters. In Erzincan, which has relatively cold winters, increasing trends were detected in cold accumulation calculated according to Utah, Modified Utah, and Positive Utah models. Results show that serious consequences may arise related to the chilling requirement of deciduous fruit trees, especially in regions with mild winters.","PeriodicalId":55576,"journal":{"name":"Atmosfera","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48731136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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