Pub Date : 2022-09-24DOI: 10.56462/2674-760x.v92024p1-31
C. O. Buriti, Humberto Aves Barbosa
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.
{"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}
Pub Date : 2022-08-30DOI: 10.56462/2674-760x.v82024p1-5
Catarina de Oliveira Buriti, H. Barbosa
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.
{"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}
Pub Date : 2022-08-13DOI: 10.56462/2674-760x.v8132024p1-31
Catarina de Oliveira Buriti
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.
{"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}
Pub Date : 2022-07-11DOI: 10.56462/2674-760x.v72024p1-7
Catarina de Oliveira Buriti, H. Barbosa
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.
{"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}
Pub Date : 2022-07-02DOI: 10.56462/2674-760x.v7022024p1-8
Catarina de Oliveira Buriti, H. Barbosa
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.
{"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}
Pub Date : 2022-06-19DOI: 10.56462/2674-760x.v6192022p1-15
Catarina de Oliveira Buriti, H. Barbosa
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.
{"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}
Pub Date : 2022-05-06DOI: 10.56462/2674-760x.v52024p1-6
Catarina de Oliveira Buriti, H. Barbosa
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.
{"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}
Pub Date : 2022-01-21DOI: 10.56462/2674-760x.v1212022p1-11
Catarina de Oliveira Buriti, H. Barbosa
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.
{"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}
Pub Date : 2021-10-09DOI: 10.56462/2674-760x.v1092022p1-9
Catarina de Oliveira Buriti, H. Barbosa
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.
{"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}
Pub Date : 2019-04-28DOI: 10.56462/2674-760x.v4282022p1-11
Catarina de Oliveira Buriti, H. Barbosa
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.
卡廷加是一个大型的干燥森林生态系统，占巴西领土的11%。植物学上，它被认为是巴西唯一独特的生物群落。来自伯南布哥的农学家和生态学家jo o Vasconcelos Sobrinho(1908-1989)首先证明了Caatinga的生物遗产不仅非常丰富，而且在地球上是独一无二的。为了纪念他，从2003年起，每年的4月28日被定为卡廷加人的国庆日。除了纪念这一日子外，卡廷加森林还应该再次受到警告，了解其目前的保护状况，以及采取系统行动保护生物群落的紧迫性。
{"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}
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