发布求助
文献互助 智能选刊 最新文献

Letras Ambientais最新文献

筛选
英文 中文
Entendendo o processo de desertificação e suas principais causas no Brasil 了解巴西沙漠化进程及其主要原因
Letras Ambientais Pub Date : 2022-09-24 DOI: 10.56462/2674-760x.v92024p1-31
C. O. Buriti, Humberto Aves Barbosa
{"title":"Entendendo o processo de desertificação e suas principais causas no Brasil","authors":"C. O. Buriti, Humberto Aves Barbosa","doi":"10.56462/2674-760x.v92024p1-31","DOIUrl":"https://doi.org/10.56462/2674-760x.v92024p1-31","url":null,"abstract":"Este post apresenta alguns conceitos básicos para se entender a desertificação no Brasil, além de analisar as principais causas da degradação das terras no Semiárido brasileiro e no seu entorno, que levam ao agravamento do processo. Também são analisados como a seca e o aumento de eventos climáticos extremos aceleram a deterioração das terras nessa região.","PeriodicalId":118625,"journal":{"name":"Letras Ambientais","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125150045","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
Peak fires in the Amazon worry actions against climate change 亚马逊地区的火灾高峰让人们担心应对气候变化的行动
Letras Ambientais Pub Date : 2022-08-30 DOI: 10.56462/2674-760x.v82024p1-5
Catarina de Oliveira Buriti, H. Barbosa
{"title":"Peak fires in the Amazon worry actions against climate change","authors":"Catarina de Oliveira Buriti, H. Barbosa","doi":"10.56462/2674-760x.v82024p1-5","DOIUrl":"https://doi.org/10.56462/2674-760x.v82024p1-5","url":null,"abstract":"Deforestation in the Amazon is (or should be) one of the most important topics in the political debate of the Brazilian elections , this year 2022. The subject increasingly worries the country's public opinion and the international media. In this post, we will analyze the current situation of fires and deforestation in Brazilian biomes, with emphasis on the Amazon, as well as its relationship with the climate change process.","PeriodicalId":118625,"journal":{"name":"Letras Ambientais","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117330840","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
New generation of Planet satellites generates images with eight spectral bands 新一代的行星卫星产生的图像有八个光谱波段
Letras Ambientais Pub Date : 2022-08-13 DOI: 10.56462/2674-760x.v8132024p1-31
Catarina de Oliveira Buriti
{"title":"New generation of Planet satellites generates images with eight spectral bands","authors":"Catarina de Oliveira Buriti","doi":"10.56462/2674-760x.v8132024p1-31","DOIUrl":"https://doi.org/10.56462/2674-760x.v8132024p1-31","url":null,"abstract":"The PlanetScope constellation continues to break paradigms in Remote Sensing . The System allows the daily monitoring of the entire Planet, from daily images of high spatial resolution (1 to 5 meters). Planet operates with a constellation of more than 200 nanosatellites. Together, these devices provide a dataset of Earth observation images unprecedented in history . It's a unique combination of coverage, frequency and resolution.","PeriodicalId":118625,"journal":{"name":"Letras Ambientais","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133873555","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
Droughts and deforestation have accelerated land degradation in the Amazon in recent decades 近几十年来，干旱和森林砍伐加速了亚马逊地区的土地退化
Letras Ambientais Pub Date : 2022-07-11 DOI: 10.56462/2674-760x.v72024p1-7
Catarina de Oliveira Buriti, H. Barbosa
{"title":"Droughts and deforestation have accelerated land degradation in the Amazon in recent decades","authors":"Catarina de Oliveira Buriti, H. Barbosa","doi":"10.56462/2674-760x.v72024p1-7","DOIUrl":"https://doi.org/10.56462/2674-760x.v72024p1-7","url":null,"abstract":"A study published in the international journal Frontiers Earth Sciense evaluated how drought affected the land degradation process in the Amazon River basin from 2001 to 2020. The research was coordinated by scientists from the Laboratory for the Analysis and Processing of Satellite Images ( Lapis ), in Brazil, in collaboration with researchers from Venezuela, the United States, India and Nepal.","PeriodicalId":118625,"journal":{"name":"Letras Ambientais","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121015249","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
How to generate in QGIS the images that revolutionized environmental mapping 如何在QGIS中生成彻底改变环境制图的图像
Letras Ambientais Pub Date : 2022-07-02 DOI: 10.56462/2674-760x.v7022024p1-8
Catarina de Oliveira Buriti, H. Barbosa
{"title":"How to generate in QGIS the images that revolutionized environmental mapping","authors":"Catarina de Oliveira Buriti, H. Barbosa","doi":"10.56462/2674-760x.v7022024p1-8","DOIUrl":"https://doi.org/10.56462/2674-760x.v7022024p1-8","url":null,"abstract":"The PlanetScope nanosatellite constellation has revolutionized the way we observe the Earth, by scanning each pole of the Planet every 90 minutes. In this post, you will learn about the technological feat achieved by Planet , when it launched its first nanosatellites, in 2016, which today are part of a constellation that captures all the dynamics of the Earth, daily. Since 2020, Brazil has been able to rely on this revolutionary technology for environmental monitoring , by having access to the PlanetScope system. It is a constellation formed by more than 200 nanosatellites, generating high spatial resolution images, with daily coverage capacity, of the entire national territory.","PeriodicalId":118625,"journal":{"name":"Letras Ambientais","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129226555","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
A revolutionary technology for mapping desertification 一项革命性的沙漠化制图技术
Letras Ambientais Pub Date : 2022-06-19 DOI: 10.56462/2674-760x.v6192022p1-15
Catarina de Oliveira Buriti, H. Barbosa
{"title":"A revolutionary technology for mapping desertification","authors":"Catarina de Oliveira Buriti, H. Barbosa","doi":"10.56462/2674-760x.v6192022p1-15","DOIUrl":"https://doi.org/10.56462/2674-760x.v6192022p1-15","url":null,"abstract":"World Day to Combat Desertification and Drought was celebrated last Friday, June 17th. In this post, we will explain the 5 points you need to know to understand the current challenges for mapping degraded areas and combating desertification in the Brazilian semiarid region. We will also address recent advances in satellite monitoring of desertification, using revolutionary mapping technology . The technology makes it possible to extract crucial information for planning actions to combat desertification, using remote sensing through a Geographic Information System (GIS). Next, check out the 5 points you need to know to understand desertification in Brazil.","PeriodicalId":118625,"journal":{"name":"Letras Ambientais","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127668140","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
Images warn of risk of death of the Xingu River in a stretch of Belo Monte 图片警告说，贝罗蒙特一段新谷河有死亡的危险
Letras Ambientais Pub Date : 2022-05-06 DOI: 10.56462/2674-760x.v52024p1-6
Catarina de Oliveira Buriti, H. Barbosa
{"title":"Images warn of risk of death of the Xingu River in a stretch of Belo Monte","authors":"Catarina de Oliveira Buriti, H. Barbosa","doi":"10.56462/2674-760x.v52024p1-6","DOIUrl":"https://doi.org/10.56462/2674-760x.v52024p1-6","url":null,"abstract":"For 50 years, Landsat satellites have been monitoring changes on the Earth's surface. The first was launched by the United States in July 1972. By gathering data from the Landsat program and other satellites , researchers can reconstruct historical patterns of landscape change and predict trends. With Landsat data, it is possible to monitor forest cover, drought situations , forest fire damage and other types of land use change. Uma das aplicações dos dados do Landsat é para analisar a mudança na vazão dos rios, em situações de alterações na bacia hidrográfica, pelo impacto da construção de grandes represas.","PeriodicalId":118625,"journal":{"name":"Letras Ambientais","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124774170","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
Mapping compares current biomass of agricultural areas in Brazil 绘图比较了巴西农业地区目前的生物量
Letras Ambientais Pub Date : 2022-01-21 DOI: 10.56462/2674-760x.v1212022p1-11
Catarina de Oliveira Buriti, H. Barbosa
{"title":"Mapping compares current biomass of agricultural areas in Brazil","authors":"Catarina de Oliveira Buriti, H. Barbosa","doi":"10.56462/2674-760x.v1212022p1-11","DOIUrl":"https://doi.org/10.56462/2674-760x.v1212022p1-11","url":null,"abstract":"The Satellite Image Analysis and Processing Laboratory ( Lapis ) has launched a new monitoring product, based on satellite data . It is the map of the difference in drought severity areas, in plantation areas, in Brazilian regions. The product is generated from the Normalized Difference Vegetation Index (NDVI). The map was processed in QGIS software , with data from the Meteosat-11 satellite , which has a spatial resolution of 3 km.","PeriodicalId":118625,"journal":{"name":"Letras Ambientais","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121344967","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
The 5 changes in land use and cover in the Caatinga in the last decades 近几十年来卡廷加地区土地利用和覆被的5次变化
Letras Ambientais Pub Date : 2021-10-09 DOI: 10.56462/2674-760x.v1092022p1-9
Catarina de Oliveira Buriti, H. Barbosa
{"title":"The 5 changes in land use and cover in the Caatinga in the last decades","authors":"Catarina de Oliveira Buriti, H. Barbosa","doi":"10.56462/2674-760x.v1092022p1-9","DOIUrl":"https://doi.org/10.56462/2674-760x.v1092022p1-9","url":null,"abstract":"A study coordinated by the MapBiomas project highlighted changes in land use and cover in the Caatinga in the period 1985-2020. To carry out the study, around 150,000 images from Landsat satellites were analyzed , with a resolution of 30 meters, available over a period of 35 years. Annual information was collected on twenty-five land use and land cover classes in the biome. In this post, we will highlight the main results of the study, which mapped the changes in the land cover of the Caatinga , in the last decades.","PeriodicalId":118625,"journal":{"name":"Letras Ambientais","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115286040","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
Caatinga: one of the least protected biomes in Brazil 卡廷加:巴西最不受保护的生物群落之一
Letras Ambientais Pub Date : 2019-04-28 DOI: 10.56462/2674-760x.v4282022p1-11
Catarina de Oliveira Buriti, H. Barbosa
{"title":"Caatinga: one of the least protected biomes in Brazil","authors":"Catarina de Oliveira Buriti, H. Barbosa","doi":"10.56462/2674-760x.v4282022p1-11","DOIUrl":"https://doi.org/10.56462/2674-760x.v4282022p1-11","url":null,"abstract":"The Caatinga is a large dry forest ecosystem that covers about 11% of the Brazilian territory. Botanically, it is considered the only uniquely Brazilian biome. It was the agronomist and ecologist from Pernambuco João Vasconcelos Sobrinho (1908-1989) who first proved that the biological heritage of the Caatinga, in addition to being very rich, is unique on the planet . In his honor, the date of April 28 is dedicated to the National Day of the Caatinga, since 2003. In addition to commemorating this date, the Caatinga deserves another warning about its current state of conservation and the urgency of systematic actions to preserve the biome.","PeriodicalId":118625,"journal":{"name":"Letras Ambientais","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114531110","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
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
请完成安全验证×
相关产品
×
本文献相关产品
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 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信