首页 > 最新文献

Anuario do Instituto de Geociencias最新文献

英文 中文
Spatial Analysis of Soybean and Sugarcane Monocultures in the Goiás Landscape Goiás景观中大豆和甘蔗单一栽培的空间分析
Q4 Social Sciences Pub Date : 2022-10-05 DOI: 10.11137/1982-3908_2022_45_44825
Beatriz Da Silva Feitoza Santana, Felipe Gonçalves Amaral, C. B. M. Cruz
Goiás represents Brazil as one of the most important states in agricultural production. 97% of this territory is located in the Brazilian Cerrado, an area of fundamental importance for the understanding of agriculture. The relevance of soy is closely linked to its market value, being present since the 1970s and dominating Brazilian territory, becoming popular as the main export product. Sugar cane, on the other hand, reflects the mosaic of cultures and the recent economy of Goiás. This crop presents a progressive growth based on the interest for its derivatives (ethanol and sugar) and the expansion of the sugar-energy sector in the country. This paper intends to analyze the spatiotemporal behavior of soybean and sugarcane crops in the state of Goiás between the years 1988 to 2018, using geotechnologies. The two cultures present a favorable situation and confirmed the hypotheses brought throughout the work. The use of different forms of representation and analysis aided in the understanding the South of Goiás, a mesoregion that stands out for both crops. The two cultures dominate almost entirely the Goiás lands destined for agricultural production, however, the spatial-temporal dynamics of each one of them occurs in different ways and at different times.
戈亚斯代表巴西是农业生产最重要的州之一。97%的领土位于巴西塞拉多,这是一个对了解农业至关重要的地区。大豆的相关性与其市场价值密切相关,自20世纪70年代以来一直存在,并在巴西领土上占据主导地位,成为主要出口产品。另一方面,甘蔗反映了戈亚斯文化和近期经济的马赛克。基于对其衍生物(乙醇和糖)的兴趣以及该国糖能源部门的扩张,这种作物呈现出渐进式增长。本文旨在利用岩土技术分析1988年至2018年间戈亚斯州大豆和甘蔗作物的时空行为。这两种文化呈现出有利的局面,并证实了贯穿作品的假设。使用不同形式的表示和分析有助于理解戈亚斯南部,这是一个对两种作物都很突出的中间区域。这两种文化几乎完全支配着戈亚斯用于农业生产的土地,然而,它们各自的时空动态以不同的方式和时间发生。
{"title":"Spatial Analysis of Soybean and Sugarcane Monocultures in the Goiás Landscape","authors":"Beatriz Da Silva Feitoza Santana, Felipe Gonçalves Amaral, C. B. M. Cruz","doi":"10.11137/1982-3908_2022_45_44825","DOIUrl":"https://doi.org/10.11137/1982-3908_2022_45_44825","url":null,"abstract":"Goiás represents Brazil as one of the most important states in agricultural production. 97% of this territory is located in the Brazilian Cerrado, an area of fundamental importance for the understanding of agriculture. The relevance of soy is closely linked to its market value, being present since the 1970s and dominating Brazilian territory, becoming popular as the main export product. Sugar cane, on the other hand, reflects the mosaic of cultures and the recent economy of Goiás. This crop presents a progressive growth based on the interest for its derivatives (ethanol and sugar) and the expansion of the sugar-energy sector in the country. This paper intends to analyze the spatiotemporal behavior of soybean and sugarcane crops in the state of Goiás between the years 1988 to 2018, using geotechnologies. The two cultures present a favorable situation and confirmed the hypotheses brought throughout the work. The use of different forms of representation and analysis aided in the understanding the South of Goiás, a mesoregion that stands out for both crops. The two cultures dominate almost entirely the Goiás lands destined for agricultural production, however, the spatial-temporal dynamics of each one of them occurs in different ways and at different times.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43300793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Travel Motivation, Destination Image, and Stage of Intention to Visit Anak Krakatau Mount: a Study of Volcano Tourism in Indonesia 旅游动机、目的地形象与喀拉喀托火山旅游意向阶段:印尼火山旅游研究
Q4 Social Sciences Pub Date : 2022-09-26 DOI: 10.11137/1982-3908_2022_45_45982
U. Suhud, M. Allan
This study aims to measure the impact of travel motivation and destination image on stage of intention to visit a volcano site, particularly Anak Krakatau. "Anak" means "child". This mount is a new volcano created by the deadly eruption of the Krakatau volcano which killed 36,417 people in 1883 and had a wide-ranging impact on some of the world's ecosystems. This mountain is located on a small island between two large islands of Sumatra and Java, Indonesia. This destination is more popular among domestic tourists. Data were collected using an online questionnaire platform and participants were approached using a convenient sampling technique. Data were analysed using exploratory and confirmatory factor analyses, as well as structural equation model. Stage intention consisted of visit intention in the period of one, three, and five years and each of them were treated as individual variable unless for visit intention in a year due to insignificance. As a result, travel motivation had a significant impact on destination image and destination image significantly affects stage of intention.
本研究旨在衡量旅行动机和目的地形象对访问火山遗址(尤其是阿纳克克拉卡托火山)意向阶段的影响。“Anak”的意思是“孩子”。这座火山是1883年喀拉喀托火山致命喷发造成的一座新火山,该火山造成36417人死亡,并对世界上的一些生态系统产生了广泛影响。这座山位于印度尼西亚苏门答腊岛和爪哇岛之间的一个小岛上。这个目的地在国内游客中更受欢迎。使用在线问卷平台收集数据,并使用方便的抽样技术联系参与者。使用探索性和验证性因素分析以及结构方程模型对数据进行分析。阶段意向由一年、三年和五年的访问意向组成,每一个阶段意向都被视为个体变量,除非一年内的访问意向由于重要性而被视为变量。旅游动机对目的地形象有显著影响,目的地形象对意向阶段有显著影响。
{"title":"Travel Motivation, Destination Image, and Stage of Intention to Visit Anak Krakatau Mount: a Study of Volcano Tourism in Indonesia","authors":"U. Suhud, M. Allan","doi":"10.11137/1982-3908_2022_45_45982","DOIUrl":"https://doi.org/10.11137/1982-3908_2022_45_45982","url":null,"abstract":"This study aims to measure the impact of travel motivation and destination image on stage of intention to visit a volcano site, particularly Anak Krakatau. \"Anak\" means \"child\". This mount is a new volcano created by the deadly eruption of the Krakatau volcano which killed 36,417 people in 1883 and had a wide-ranging impact on some of the world's ecosystems. This mountain is located on a small island between two large islands of Sumatra and Java, Indonesia. This destination is more popular among domestic tourists. Data were collected using an online questionnaire platform and participants were approached using a convenient sampling technique. Data were analysed using exploratory and confirmatory factor analyses, as well as structural equation model. Stage intention consisted of visit intention in the period of one, three, and five years and each of them were treated as individual variable unless for visit intention in a year due to insignificance. As a result, travel motivation had a significant impact on destination image and destination image significantly affects stage of intention.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45266218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Comparação entre Algoritmos de Aprendizado de Máquina para a Identificação de Floresta Tropical Sazonalmente Seca 季节性干旱雨林识别的机器学习算法比较
Q4 Social Sciences Pub Date : 2022-09-20 DOI: 10.11137/1982-3908_2022_45_40758
Elisiane Alba, Marta Laura de Souza Alexandre, Juliana Marchesan, Luciana Sandra Bastos De Souza, A. C. Bezerra, Emanuelle Silva Araújo
{"title":"Comparação entre Algoritmos de Aprendizado de Máquina para a Identificação de Floresta Tropical Sazonalmente Seca","authors":"Elisiane Alba, Marta Laura de Souza Alexandre, Juliana Marchesan, Luciana Sandra Bastos De Souza, A. C. Bezerra, Emanuelle Silva Araújo","doi":"10.11137/1982-3908_2022_45_40758","DOIUrl":"https://doi.org/10.11137/1982-3908_2022_45_40758","url":null,"abstract":"","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46368512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Entendendo a Complexidade dos Requisitos Necessários para Subsidiar a Implementação de SIGWEB para Comitês de Bacias Hidrográficas a partir da Avaliação de Sistemas Existentes no Brasil 从巴西现有系统的评估中理解为流域委员会实施SIGWEB提供补贴的必要要求的复杂性
Q4 Social Sciences Pub Date : 2022-09-16 DOI: 10.11137/1982-3908_2022_45_41356
Lígia Albuquerque de Alcântara Ferreira, R. M. Gonçalves, J. Cabral
{"title":"Entendendo a Complexidade dos Requisitos Necessários para Subsidiar a Implementação de SIGWEB para Comitês de Bacias Hidrográficas a partir da Avaliação de Sistemas Existentes no Brasil","authors":"Lígia Albuquerque de Alcântara Ferreira, R. M. Gonçalves, J. Cabral","doi":"10.11137/1982-3908_2022_45_41356","DOIUrl":"https://doi.org/10.11137/1982-3908_2022_45_41356","url":null,"abstract":"","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47405227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influência da Evolução do Uso e Ocupação do Solo do Município de Lucena- PB no Armazenamento de Carbono: Projeções para os anos de 2030 e 2040 卢塞纳市土地利用和占用演变对碳储存的影响:2030年和2040年的预测
Q4 Social Sciences Pub Date : 2022-09-15 DOI: 10.11137/1982-3908_2022_45_40011
I. Bezerra, T. Silva
{"title":"Influência da Evolução do Uso e Ocupação do Solo do Município de Lucena- PB no Armazenamento de Carbono: Projeções para os anos de 2030 e 2040","authors":"I. Bezerra, T. Silva","doi":"10.11137/1982-3908_2022_45_40011","DOIUrl":"https://doi.org/10.11137/1982-3908_2022_45_40011","url":null,"abstract":"","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44861968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessment of Land Use and Land Cover Change from 2000 to 2019 in East Java Indonesia 印度尼西亚东爪哇省2000-2009年土地利用和土地覆盖变化评估
Q4 Social Sciences Pub Date : 2022-09-15 DOI: 10.11137/1982-3908_2022_45_46456
I. Indarto, E. Hidayah, Farid Lukman Hakim
This study aims to analyse land use, and land cover (LULC) changes in East Java province in Indonesia. The changes are analysed by comparing two maps (the national digital map and the map interpreted from Landsat-8). Supervised classification of Landsat image using maximum likelihood algorithm done an overall and kappa accuracy of 96.62% and 96.02 %, respectively. The classification produces nine (9) classes, i.e.: (1) the pavement or urban area, (2) heterogeneous agricultural land, (3) paddy field, (4) open water, (5) dense vegetation (forest), (6) sparse vegetation (plantation), (7) shrubland, (8) Wetlands, and (9) Sandy-clay-rock. Furthermore, three subsets areas are explored to study the LULC changes caused by the development of the transportation infrastructure; industrial sites; the agricultural sector; tourism; urbanisation and sub-urbanisation. The LULC change is more marked in the most urbanised areas (in and around the big cities), followed by LULC change in and around medium cities and rural areas.  Regional development during the last two decades has increased built-up and plantation areas. Conversely, the development has reduced paddy fields, rural areas, and water bodies. The LULC changes have significantly changed the natural to a human-dominated landscape. 
这项研究旨在分析印度尼西亚东爪哇省的土地利用和土地覆盖(LULC)变化。通过比较两张地图(国家数字地图和由Landsat-8解释的地图)来分析这些变化。利用最大似然算法对Landsat图像进行监督分类,总体和kappa准确率分别为96.62%和96.02%。该分类产生了九(9)类,即:(1)路面或城区,(2)异质农业用地,(3)水田,(4)开阔水域,(5)茂密植被(森林),(6)稀疏植被(人工林),(7)灌木地,(8)湿地,(9)砂质粘土岩。在此基础上,探讨了交通基础设施发展对城市土地利用成本变化的影响;工业场所;农业部门;旅游;城市化和次城市化。在城市化程度最高的地区(大城市及其周边),LULC变化更为明显,其次是中等城市和农村地区及其周边的LULC变化。过去二十年的区域发展增加了建筑面积和种植面积。相反,发展减少了稻田、农村地区和水体。LULC的变化使自然景观显著地转变为以人为主导的景观。
{"title":"Assessment of Land Use and Land Cover Change from 2000 to 2019 in East Java Indonesia","authors":"I. Indarto, E. Hidayah, Farid Lukman Hakim","doi":"10.11137/1982-3908_2022_45_46456","DOIUrl":"https://doi.org/10.11137/1982-3908_2022_45_46456","url":null,"abstract":"This study aims to analyse land use, and land cover (LULC) changes in East Java province in Indonesia. The changes are analysed by comparing two maps (the national digital map and the map interpreted from Landsat-8). Supervised classification of Landsat image using maximum likelihood algorithm done an overall and kappa accuracy of 96.62% and 96.02 %, respectively. The classification produces nine (9) classes, i.e.: (1) the pavement or urban area, (2) heterogeneous agricultural land, (3) paddy field, (4) open water, (5) dense vegetation (forest), (6) sparse vegetation (plantation), (7) shrubland, (8) Wetlands, and (9) Sandy-clay-rock. Furthermore, three subsets areas are explored to study the LULC changes caused by the development of the transportation infrastructure; industrial sites; the agricultural sector; tourism; urbanisation and sub-urbanisation. The LULC change is more marked in the most urbanised areas (in and around the big cities), followed by LULC change in and around medium cities and rural areas.  Regional development during the last two decades has increased built-up and plantation areas. Conversely, the development has reduced paddy fields, rural areas, and water bodies. The LULC changes have significantly changed the natural to a human-dominated landscape. ","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46857440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Landforms Spatial Interference with Seismic Waves in the Area of Influence of the Cocos Plate, Mexico 墨西哥科科斯板块影响区地形对地震波的空间干扰
Q4 Social Sciences Pub Date : 2022-08-31 DOI: 10.11137/1982-3908_2022_45_42913
Fidel Martínez-García
Within the framework of the “site effect” study and the spatial impact of local geographic features on seismic waves, the maximum accelerations of 45 interplate and intraslab seismic events with magnitudes (Mw) in the range of 5.6 to 8.2 that occurred from 1985 to 2018 were spatially analyzed and processed. Averages and maximum acceleration values of 172 accelerographs distributed among the territories boundaries located in the most seismic region of Mexico, are replaced the data of the scale of seismic moment magnitude (Mw) in each of the epicenters of the 45 events studied. The differential seismic impact of the topography that four Significant Epicentral Zones (SEZ) identified exert in two important cities, two tourist poles and two commercial seaports is identified. Correspondingly, the predominant orientation, direction, spatial tendency at the lithosphere level, which follow seismic waves as a result of interaction with topography within each SEZ were identified.
在“场地效应”研究和局部地理特征对地震波的空间影响的框架下,对1985 - 2018年发生的45次震级(Mw)在5.6 ~ 8.2级的板间和实验室内地震事件的最大加速度进行了空间分析和处理。分布在墨西哥最震区边界上的172个加速度计的平均和最大加速度值,被所研究的45个事件的每个震中的地震矩震级(Mw)尺度的数据所取代。确定了四个重要震中带(SEZ)在两个重要城市、两个旅游极点和两个商业海港所产生的地形差异地震影响。相应的,在岩石圈水平上,通过与地形的相互作用,确定了地震波在各经济特区内的主导方位、方向和空间倾向。
{"title":"Landforms Spatial Interference with Seismic Waves in the Area of Influence of the Cocos Plate, Mexico","authors":"Fidel Martínez-García","doi":"10.11137/1982-3908_2022_45_42913","DOIUrl":"https://doi.org/10.11137/1982-3908_2022_45_42913","url":null,"abstract":"Within the framework of the “site effect” study and the spatial impact of local geographic features on seismic waves, the maximum accelerations of 45 interplate and intraslab seismic events with magnitudes (Mw) in the range of 5.6 to 8.2 that occurred from 1985 to 2018 were spatially analyzed and processed. Averages and maximum acceleration values of 172 accelerographs distributed among the territories boundaries located in the most seismic region of Mexico, are replaced the data of the scale of seismic moment magnitude (Mw) in each of the epicenters of the 45 events studied. The differential seismic impact of the topography that four Significant Epicentral Zones (SEZ) identified exert in two important cities, two tourist poles and two commercial seaports is identified. Correspondingly, the predominant orientation, direction, spatial tendency at the lithosphere level, which follow seismic waves as a result of interaction with topography within each SEZ were identified.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42757620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Digital Image Classification: a Comparison of Classic Methods for Land Cover and Land Use Mapping 数字图像分类:土地覆盖与土地利用制图经典方法的比较
Q4 Social Sciences Pub Date : 2022-08-12 DOI: 10.11137/1982-3908_2022_45_47481
A. M. Santos, Nadyelle Curcino do Carmo, Fabrizia Gioppo Nunes, Larissa Andrade de Aguiar, Carlos Fabricio Assunção da Silva
In the classification of images for land cover and land use mapping, several methods can be applied, however, they can present different results in relation to field truth. Therefore, the objective of this work was to test techniques for classifying high spatial digital images obtained from the Google Earth Pro® platform. The images refer to a section of the Federal University of Goias, campus Samambaia Goiania - GO, Brazil. Classification tests were performed on the images obtained, using two classifiers per region and two classifiers per pixel, both available free of charge, in the Spring software of the National Institute for Space Research (INPE / Brazil). For the analysis of the quality of the classifications, the results were compared to a survey by direct method, in this case the topographic one, seeking to identify which classifier came closest to the field truth. The classification that presented the best performance and class separability was the Bhattacharya, with Global Accuracy of 0.85. Bhattacharya was also the classifier that came closest in terms of measured areas, by the topographic survey, with the areas of the “zinc roofing” use class, analyzed and calculated.
在土地覆盖和土地利用制图的图像分类中,可以应用几种方法,但它们可能会根据实地情况呈现不同的结果。因此,这项工作的目的是测试对从Google Earth Pro®平台获得的高空间数字图像进行分类的技术。这些图片指的是巴西戈亚斯联邦大学Samambaia Goiania-GO校区的一部分。在国家空间研究所(INPE/巴西)的Spring软件中,使用每个区域两个分类器和每个像素两个分类器对获得的图像进行了分类测试,这两个分类器都是免费提供的。为了分析分类的质量,将结果与直接方法(在本例中为地形法)的调查结果进行了比较,以确定哪种分类器最接近现场实况。表现出最佳性能和类可分性的分类是Bhattacharya,全局准确度为0.85。Bhattacharya也是地形测量中测量面积与分析和计算的“锌屋顶”使用类别面积最接近的分类器。
{"title":"Digital Image Classification: a Comparison of Classic Methods for Land Cover and Land Use Mapping","authors":"A. M. Santos, Nadyelle Curcino do Carmo, Fabrizia Gioppo Nunes, Larissa Andrade de Aguiar, Carlos Fabricio Assunção da Silva","doi":"10.11137/1982-3908_2022_45_47481","DOIUrl":"https://doi.org/10.11137/1982-3908_2022_45_47481","url":null,"abstract":"In the classification of images for land cover and land use mapping, several methods can be applied, however, they can present different results in relation to field truth. Therefore, the objective of this work was to test techniques for classifying high spatial digital images obtained from the Google Earth Pro® platform. The images refer to a section of the Federal University of Goias, campus Samambaia Goiania - GO, Brazil. Classification tests were performed on the images obtained, using two classifiers per region and two classifiers per pixel, both available free of charge, in the Spring software of the National Institute for Space Research (INPE / Brazil). For the analysis of the quality of the classifications, the results were compared to a survey by direct method, in this case the topographic one, seeking to identify which classifier came closest to the field truth. The classification that presented the best performance and class separability was the Bhattacharya, with Global Accuracy of 0.85. Bhattacharya was also the classifier that came closest in terms of measured areas, by the topographic survey, with the areas of the “zinc roofing” use class, analyzed and calculated.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42147751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Biogeochemical Characteristics of Western Tropical Atlantic Ocean Water Masses 西热带大西洋水团生物地球化学特征
Q4 Social Sciences Pub Date : 2022-07-26 DOI: 10.11137/1982-3908_2022_45_45732
Renan Evangelista Vieira, L. C. da Cunha, Luana Keiroz Pinho, Alexandre Macedo Fernandes, Raquel Da Conceicao Dos Santos, Ricardo Keim, Carlos Musetti De Assis, T. Franklin, Jessica da Silva Nogueira
Water masses are commonly identified according to their conservative parameters. However, there are also studies that use non-conservative parameters, together with the conservative ones, to refine the water masses identification. The aim of this study was to analyze the chemical properties of the water masses in the western tropical Atlantic Ocean (WTAO) according to their inorganic nutrient concentration: nitrate-NO3–, phosphate-PO43–, and silicic acid-Si(OH)4, to set a regional descriptive framework of the water column in view of future comparative studies. We collected full-depth water column samples from 18 oceanographic stations from a latitudinal transect along 38°W, from 02°S to 15°N during the PIRATA-BR XVII and XVIII campaigns, in November 2017 and 2018. We have also used the regional data available from GLODAPv.2 data product to improve the water masses characterization. Six water masses were identified in the region based on their values of potential temperature, salinity, potential density, and neutral density observed in the study area according to the CTD-O2 data: Tropical Surface Water (TSW); South and North Atlantic Central Water (SACW and NACW, respectively); Antarctic Intermediate Water (AAIW); North Atlantic Deep Water (NADW); and Antarctic Bottom Water (AABW). Regarding the nutrient content within each water mass, our results showed that TSW corresponds to a surface oligotrophic water; NACW and SACW have intermediate nutrient concentration values between TSW and AAIW; AAIW showed the highest concentration of phosphate-PO43– (~ 1.35 µmol kg–1) and nitrate-NO3– (~30 µmol kg–1); AABW, on the other hand, was the water mass with the highest silicic acid-Si(OH)4 concentration (~ 80 µmol kg–1), as well as high nitrate-NO3– (~ 25 µmol kg–1) and phosphate-PO43– (~ 1.80 µmol kg–1) concentrations. Additionally, the water column between 300 and 650 m displays an increase in phosphate-PO43– concentrations north of 5oN, associated to a low dissolved oxygen area coupled to the North Equatorial Under Current (NEUC). Long-term, sustained hydrographic and ocean biogeochemistry observations are key to understand how climate change is affecting the ocean, and this study is a contribution to that.
水团通常根据其保守参数进行识别。然而,也有研究使用非保守参数和保守参数来完善水团识别。本研究的目的是根据其无机营养物浓度:硝酸盐-NO3–、磷酸盐-PO43–和硅酸Si(OH)4来分析热带大西洋西部(WTAO)水体的化学性质,以建立一个区域水柱描述框架,以供未来的比较研究。2017年11月和2018年11月,在PIRATA-BR XVII和XVIII运动期间,我们从38°W、02°S至15°N的纬向横断面上收集了18个海洋学站的全深度水柱样本。我们还使用了GLODAPv.2数据产品中的区域数据来改进水团特征。根据CTD-O2数据,根据研究区域内观测到的潜在温度、盐度、潜在密度和中性密度值,在该区域确定了六个水团:热带地表水(TSW);南大西洋和北大西洋中央水域(分别为SACW和NACW);南极中间水;北大西洋深水区;和南极底层水(AABW)。关于每个水体中的营养物质含量,我们的结果表明,TSW对应于表面贫营养水;NACW和SACW具有介于TSW和AAIW之间的中间营养物浓度值;AAIW显示出最高浓度的磷酸盐-PO43–(~1.35µmol kg–1)和硝酸盐-NO3–(~30µmol kg-1);另一方面,AABW是具有最高硅酸Si(OH)4浓度(~80µmol kg–1)以及高硝酸盐-NO3–(~25µmol kg-1)和磷酸盐-PO43–(~1.80µmol kg-1)浓度的水体。此外,300米至650米之间的水柱显示,5oN以北的磷酸盐PO43浓度增加,这与北赤道洋流(NEUC)耦合的低溶解氧区域有关。长期、持续的水文和海洋生物地球化学观测是了解气候变化如何影响海洋的关键,这项研究对此做出了贡献。
{"title":"Biogeochemical Characteristics of Western Tropical Atlantic Ocean Water Masses","authors":"Renan Evangelista Vieira, L. C. da Cunha, Luana Keiroz Pinho, Alexandre Macedo Fernandes, Raquel Da Conceicao Dos Santos, Ricardo Keim, Carlos Musetti De Assis, T. Franklin, Jessica da Silva Nogueira","doi":"10.11137/1982-3908_2022_45_45732","DOIUrl":"https://doi.org/10.11137/1982-3908_2022_45_45732","url":null,"abstract":"Water masses are commonly identified according to their conservative parameters. However, there are also studies that use non-conservative parameters, together with the conservative ones, to refine the water masses identification. The aim of this study was to analyze the chemical properties of the water masses in the western tropical Atlantic Ocean (WTAO) according to their inorganic nutrient concentration: nitrate-NO3–, phosphate-PO43–, and silicic acid-Si(OH)4, to set a regional descriptive framework of the water column in view of future comparative studies. We collected full-depth water column samples from 18 oceanographic stations from a latitudinal transect along 38°W, from 02°S to 15°N during the PIRATA-BR XVII and XVIII campaigns, in November 2017 and 2018. We have also used the regional data available from GLODAPv.2 data product to improve the water masses characterization. Six water masses were identified in the region based on their values of potential temperature, salinity, potential density, and neutral density observed in the study area according to the CTD-O2 data: Tropical Surface Water (TSW); South and North Atlantic Central Water (SACW and NACW, respectively); Antarctic Intermediate Water (AAIW); North Atlantic Deep Water (NADW); and Antarctic Bottom Water (AABW). Regarding the nutrient content within each water mass, our results showed that TSW corresponds to a surface oligotrophic water; NACW and SACW have intermediate nutrient concentration values between TSW and AAIW; AAIW showed the highest concentration of phosphate-PO43– (~ 1.35 µmol kg–1) and nitrate-NO3– (~30 µmol kg–1); AABW, on the other hand, was the water mass with the highest silicic acid-Si(OH)4 concentration (~ 80 µmol kg–1), as well as high nitrate-NO3– (~ 25 µmol kg–1) and phosphate-PO43– (~ 1.80 µmol kg–1) concentrations. Additionally, the water column between 300 and 650 m displays an increase in phosphate-PO43– concentrations north of 5oN, associated to a low dissolved oxygen area coupled to the North Equatorial Under Current (NEUC). Long-term, sustained hydrographic and ocean biogeochemistry observations are key to understand how climate change is affecting the ocean, and this study is a contribution to that.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47558436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Onda de Frio Histórica no Brasil: um Estudo de Caso de Junho de 1985 巴西的历史性寒潮:1985年6月的案例研究
Q4 Social Sciences Pub Date : 2022-07-26 DOI: 10.11137/1982-3908_2022_45_40761
Bruno César Capucin, Michelle Simões Reboita, Vinícius Lucyrio, Gustavo Carlos Juan Escobar
{"title":"Onda de Frio Histórica no Brasil: um Estudo de Caso de Junho de 1985","authors":"Bruno César Capucin, Michelle Simões Reboita, Vinícius Lucyrio, Gustavo Carlos Juan Escobar","doi":"10.11137/1982-3908_2022_45_40761","DOIUrl":"https://doi.org/10.11137/1982-3908_2022_45_40761","url":null,"abstract":"","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41944378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Anuario do Instituto de Geociencias
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1