O meandramento da Corrente do Brasil (CB) ao sul da Bifurcação de Santos é investigada por meio de imagens satelitárias, dados quase-sinóticos, análise de funções ortogonais empíricas (EOF) de correntômetros de fundeios e um modelo analítico semi-teórico. A análise das imagens satelitárias revelam que em média 1,2 meandros ciclônicos de grande amplitude são formados anualmente nas vizinhanças do Cabo de Santa Marta (∼28,5°S). Os meandros parecem ser geostroficamente instáveis e a taxa de crescimento típica estimada é de 0,05 m s-1 . Eles ainda se propagam para sul com velocidade de fase de 0,07 m s-1 . A seção de velocidade, como a inferida por perfis de L-ADCP obtidos durante cruzeiros hidrográficos, revelam que os meandros do Cabo de Santa Marta possuem estrutura de velocidade distinta daquelas observadas em Cabo Frio (23°S) e Cabo de São Tomé (22°S). Os meandros alcançam profundidades maiores que 1400 m e recirculam Água Tropical, Água Central do Atlântico Sul, Água Intermediária Antártica e Água Circumpolar Superior. Ocasionalmente, a estrutura do vórtice se funde com a camada subjacente da Corrente de Contorno Oeste Profunda. O padrão geostrófico horizontal dos meandros foram mapeados usando dados de temperatura e salinidade de cruzeiros históricos e foi obtido que a estrutura ciclônica do meandro possui número de Rossby (∼0,07) e número de Burger (∼0,06) pequenos. Portanto, vorticidade de estiramento parece ter papel importante na dinâmica de meandramento e, consequentemente, instabilidade baroclínica é o fenômeno primariamente responsável pelo crescimento do ciclone. O número de Burger pequeno também sugere que a dinâmica do meandro é influênciada pela topografia. A análise de EOFs bidimensionais conduzida no transecto WOCE 28°S de fundeios históricos dos anos 90 mostram que o primeiro modo seccional explica cerca de 54% da variância das séries e está relacionado ao meandramento da CB. A amplitude do meandro ciclônico é aproximadamente 200 km uma vez que cruza o transecto e a onda de vorticidade baroclínica associada tem tipicamente 26 dias. Finalmente, um modelo de Dinâmica de Contornos idealizado de 2 camadas é construído para isolar o mecanismo de instabilidade baroclínica e para investigar as razões do crescimento e velocidade de fase para sul. A estrutura do fluxo básico do modelo é construído baseado no ajuste por mínimos quadrados das funções teóricas à média das observações nas espessuras das camadas. A simulação mostrou que o meandro evolui e se desenvolve devido ao fechamento de fase da camada inferior mais lenta relativo à camada superior mais rápida. Além disso, a propagação de fase para sul ocorre como uma consequência direta da componente barotrópica robusta, adquirida pela CB devido o ramo sul da Bifurcação de Santos. / The Brazil Current (BC) meandering south of the so-called Antarctic Intemediate Water\'s Santos Bifurcation is investigated by means of satellite imagery, quasi-synoptic data, empirical orthogonal function (EOF) analysis of currentmeter moorings and a semi-theoretical dynamical model. The analysis of the infrared imagery revealed that on average 1.2 large amplitude cyclonic meanders are formed annualy in the vicinities of Cape Santa Marta (∼28.5°S). The meanders seem to be geophysically unstable and the estimated typical growth rate is of 0.05 days-1 . They also propagate southward with phase speed of 0.07 m s-1 . The sectional velocity distributions, as inferred from L-ADCP profiles obtained during hydrographic cruises, revealed that the Cape Santa Marta meanders have a very distinct vertical structure from those observed off Cape Frio (23°S) and Cape São Tomé (22°S). The meanders reach much depths of 1400 m and recirculated Tropical Water, South Atlantic Central Water, Antarctic Intemediate Water and Upper Circumpolar Waters. Occasionally, the eddy structure melds with the underlying Deep Western Boundary Current. Geostrophic horizontal patterns of the meanders were mapped using T-S information from historical cruises and it is obtained that the meander is a low-Rossby number (∼0.07) and low-Burger(∼0.06) number cyclone feature. Therefore, stretching vorticity seems to play a major role on the meandering dynamics and, consequently, baroclinic instability is the phenomenon primairily responsible for the cyclone growth. The low-Burger number also suggests that the meander dynamics is influenced by the topography. The two-dimensional EOF analysis conducted on the historical 28°S WOCE mooring transect from the 90s shows that the first sectional mode explains about 54% of the series variance and is related to the BC meandering. The amplitude of the cyclonic meander is roughly 200 km as it crosses the transect and the associated baroclinic vorticity wave period is typically 26 days. Finally, an idealized 2-layer Contour Dynamics model is constructed to isolate the baroclinic instability mechanism and to investigate the reasons for the growth and the southward phase speeds. The model\'s basic flow structure is built based on least-square fits of the observations averaged within the two layer\'s vertical extensions. The simulation showed that the meander evolve and grow due to the phase-locking of the slower lower layer relative to the faster upper layer. Also, the southward phase speed occurs as a direct consequence of the robust barotropic component acquired by the BC due to the southern branch of the Santos Bifurcation of the Antarctic Intemediate Water.

Tesi--Siena--Università degli studi di Siena, 2000. / Bibliogr. p. 199-215.

At the end of the 20th century, the combination of climatic and anthropogenic events resulted in hyper salinity conditions in the coastal wetland Ciénaga Grande de Santa Marta (CGSM), Colombia. Although salinity concentrations are generally related to the type and quantity of water entering and exiting a wetland and to its internal hydrological dynamics, there have been no up to date hydrological studies on the CGSM. Here we show how a water budget can be used as a first-order of approximation to describe the CGSM's hydrology, despite data limitations. We collected hydroclimatic data to calculate and analyze the fluxes of water entering and exiting CGSM and their corresponding uncertainties. We find that the water budget is mostly affected by the precipitation regime, a result connected to studies of regional El Niño/La Niña effects. Scenario analyses show that contribution of freshwater from the streams coming down from the Sierra Nevada Mountain Range on the eastern side of CGSM is currently larger than that of the channels draining from Magdalena River to the west, in contrast to the general focus on the western side. However, Monte Carlo simulations suggest that the eastern freshwater inflow is insignificant in affecting the hydrological response of CGSM. These results outline the need to (1) increase understanding of the internal connectivity and circulation of CGSM and (2) further investigate the effect of agriculture on the eastern side of CGSM.

Mangrove forests are unique coastal ecosystems, formed through a complex network of terrestrial, estuarine, and marine processes that have provided a diverse assortment of societal benefits across time. Compounding anthropogenic pressures are driving critical mangrove degradation worldwide, threatening the wellbeing of coastal populations historically associated with these systems. The Ciénaga Grande de Santa Marta (CGSM) in northern Colombia is the largest coastal lagoon-delta in the Caribbean. It is inhabited by stilt-house communities who have developed an intricate livelihood and cultural relationship with the mangroves. The CGSM has experienced sustained social and ecological degradation over the last 6 decades, triggered by land-use change and disruption of hydrological connections. This study integrates Social-Ecological Memory and Palaeoecology to develop a historical contextualization of the biophysical and social dimensions of environmental change in CGSM. Integration of geochemical sediment analysis, C14 radiocarbon dating, and demographic inferences from archaeological evidence revealed three distinct periods over the last 5000 years. During this time sea level rise and hydroclimatic variability shaped the transition from freshwater to prevailing marine conditions, and modulated human occupation patterns in the area around 2000 years ago. In addition, participatory reconstructions with local communities offered nuanced descriptions about the spatial, temporal and contextual aspects of the degradation process, with profound social-ecological consequences. The interdisciplinary approach of this study indicates that CGSM is a highly dynamic social-ecological system that has been changing and reconfiguring across different time scales in response to both natural and human-induced processes, and contributes to the preservation of collective memory in this unique stilt-house community. Finally, it reveals the relative effects of biophysical and social drivers on driving social-ecological change under both millennial and decadal scales.

The aim of this master thesis project is to investigate how cities strive to be globally competitive affect local residents in informal settlements, generically called slum dwellers. This question is approached trough a case study of one of Rio de Janeiro’s informal settlements ‘favela’ Santa Marta. The favela’s public spaces have been studied in order to reveal how Rio’s search for increased global status has affected the management of the spaces and consequently the favela dwellers. Rio de Janeiro is using a well-acknowledged strategy towards global competitiveness, the hosting of international mega-events. Within the near future the city is presenting two of the world’s most well-known events: the FIFA World Cup and the Olympic Games. The games are being used as a tool to attract tourists and foreign investments, which are expected to help the city to Compete Globally. However, our findings show that this is happening at the expense of the city’s vulnerable slum dwellers and that Rio to some extent is Losing Locally. For example, slum areas that can contribute to presenting Rio as an attractive city, or have an unexploited economic potential, are increasingly integrated to the formal city. The residents of these areas are affected in several ways, for example through being evicted on behalf of more economically beneficial establishments. Remote slums with no interest for investments are however still separated from the formal city and left without support for its residents. Trough our research we have found that when a city set out to be globally competitive, it uses neoliberal market strategies, like hosting mega-events, since that is apprehended as the only trajectory towards development. Although, we suggest that the known strategy for development should be revised in order to not violate human rights. / Målet med detta examensarbete är att undersöka hur städers strävan efter global konkurrenskraft påverkar de lokala invånarna som bor i informella bostadsområden, så kallade sluminvånare. För att besvara frågeställningen har vi utfört en fallstudie av det informella bostadsområdet ‘favela’ Santa Marta i Rio de Janeiro. Santa Martas allmänna platser har studerats för att få en förståelse för hur Rios strävan efter global status har påverkat hanteringen av favelans allmänna platser och följaktligen dess sluminvånare. Rio de Janeiro använder sig av en internationellt erkänd strategi för att bli globalt konkurrenskraftig, nämligen att anordna internationella mega-event. Inom en snar framtid kommer Rio vara en av värdstäderna för fotbolls VM, och två år senare ska staden vara värd för de Olympiska sommarspelen. Sportevenemangen används som ett politiskt verktyg för att attrahera turister och internationella investeringar som ett steg mot ökad global konkurrenskraft. Resultatet av vår studie visar dock att detta sker på bekostnad av stadens utsatta sluminvånare och att strävan efter global uppmärksamhet kan ha negativ inverkan på lokal nivå. De slumområden i Rio som kan tänkas bidra till en attraktiv bild av staden, alternativt innehar outnyttjad ekonomisk potential, blir integrerade i den formella staden. Invånarna i dessa områden blir negativt drabbade på en rad olika sätt. Exempelvis har ett flertal människor blivit vräkta då området de bor på kan användas till mer ekonomiskt lönsamma ändamål. Avlägsna slumområden utan ekonomiskt intresse blir dock ignorerade. Resultat från vår studie visar att när städer planerar för en ökad global konkurrenskraft använder de sig av neoliberala marknadsstrategier, som mega-event, eftersom detta anses vara det enda tillvägagångssättet för ekonomisk utveckling. Vi föreslår dock att denna rådande strategi behöver utvecklas, uppdateras och få sällskap av alternativa vägar mot utveckling då den i dagsläget leder till att mänskliga rättigheter bryts.

Despite being one of the most productive ecosystems on earth, wetland areas have been heavily affected by human activities. The Cienaga Grande de Santa Marta (CGSM) in Colombia is one of these wetlands, where the inadequate construction of roads modified the hydrology and connectivity of this water body, generating massive mangrove mortality episodes. The lack of knowledge on the hydrological processes and connectivity of the CGSM has impaired mangrove restoration plans. Here we use wetland interferometry technique to remotely monitor the wetland and understand the flow of water in/out and across the CGSM wetland complex. A close collaboration with Miami University allowed us to access CGSM’s interferograms created with ALOS Palsar satellite data (from 2007 until 2011). The interferograms resulting from the analysis were correlated with daily hydrological data (precipitation, runoff in the main inflow of freshwater to the wetland, tide charts) to finally identify two main paths of inflow of water that are still active and are continuously feeding freshwater into the Cienaga. The most persistent was identified in the south-west part of the CGSM; a water flow coming directly from the Magdalena River and entering the main lagoon in its south-west corner. The second was located in the north-west area, where most of the mangroves have died. In this case, different interferograms showed different potential water flow paths depending on the season (dry / wet season), the Magdalena River’s discharge and the rainfall. These results reflect the complex hydrology of the CGSM . Furthermore, a coherence analysis was conducted to assess the quality of the remote sensing data and to better understand the different responses of the features within the Cienaga. The results showed that the coherence analysis could also be potentially used to identify areas of dead mangrove. This study confirms that despite the blockage of the connectivity of the wetlands, there are still important freshwater flow paths feeding the CGSM. Additional hydrological studies are needed to ensure the further understanding of the hydrology of the CGSM and confirm the results of this study.

Submitted by Sabrina Marinho Ost (sabrinaost@yahoo.com.br) on 2012-04-11T20:36:18Z No. of bitstreams: 1 Dissertação Final.pdf: 1242543 bytes, checksum: fd402e8eff4508e0462dd8e1c87c78eb (MD5) / Approved for entry into archive by ÁURA CORRÊA DA FONSECA CORRÊA DA FONSECA (aurea.fonseca@fgv.br) on 2012-04-12T13:27:46Z (GMT) No. of bitstreams: 1 Dissertação Final.pdf: 1242543 bytes, checksum: fd402e8eff4508e0462dd8e1c87c78eb (MD5) / Approved for entry into archive by Marcia Bacha (marcia.bacha@fgv.br) on 2012-04-12T14:37:30Z (GMT) No. of bitstreams: 1 Dissertação Final.pdf: 1242543 bytes, checksum: fd402e8eff4508e0462dd8e1c87c78eb (MD5) / Made available in DSpace on 2012-04-12T14:37:40Z (GMT). No. of bitstreams: 1 Dissertação Final.pdf: 1242543 bytes, checksum: fd402e8eff4508e0462dd8e1c87c78eb (MD5) Previous issue date: 2012-03-13 / This case study aimed to identify how the implementation of the Unidade de Polícia Pacificadora ('Pacifying Police Unit,' or UPP) in Santa Marta favela, Rio de Janeiro, has changed the interaction of the market with this community and how it affected social relations in the slum, according to the perception of the residents. The objective of this research was to understand how the internal market, be it formal or informal, has responded to the new situation and how actors from the external market, as Firjan, Light, among others, have been working on site. Moreover, we aimed to examine how this new market dynamics, made possible by greater state presence in Santa Marta, influenced local sociability. Furthermore, we carried out a field research where observations and semi-open interviews were conducted with representatives of companies that operate in the favela, as well as local entrepreneurs, residents and local leaders. We found that the expansion of the internal market and external market activity in the favela, allows some benefits to reach those who live there. However, this situation has generated new insecurities to residents who feel that increased tourism and festivities to the general public have been restricting leisure facilities. We also found that they fear not being able to afford the rising costs of living there and the consequent impoverishment, as well as they fear that they will suffer a process of banishment caused by market pressure. Thus, some will be able to take advantage and even promote themselves through the opportunities that have arisen with the expansion of the market, while others probably won’t have the capability and will suffer a new exclusion. / O presente estudo de caso teve por objetivo identificar como a implantação da Unidade de Polícia Pacificadora na favela Santa Marta, na Zona Sul do Rio de Janeiro, alterou a interação do mercado com esta comunidade e como isso afetou as relações sociais na favela a partir da percepção dos moradores. O intuito era perceber como o mercado interno, seja ele formal ou informal, tem respondido à nova conjuntura e como atores do mercado externo, como Firjan, Light, entre outros, vêm atuando no local. Ademais, buscou-se analisar como essa nova dinâmica do mercado, viabilizada pela maior presença do estado no Santa Marta, influenciou a sociabilidade local. Para tal, por meio de pesquisa de campo, foram realizadas observações participantes e entrevistas semi-abertas com representantes de empresas que atuam na comunidade, empreendedores locais, moradores e lideranças. Concluiu-se que a expansão do mercado interno e da atuação do mercado externo na comunidade, permite que alguns benefícios cheguem; contudo, essa nova conjuntura tem gerado inseguranças nos moradores que sentem que tiveram espaços de lazer restringidos com o aumento do turismo e eventos festivos para o público externo, receiam não ter condições de arcar com o aumento do custo de vida e conseqüente empobrecimento e temem que venham a sofrer um processo de remoção branca causada pela pressão do mercado. Assim, alguns terão condições de aproveitar e até se desenvolver com as oportunidades que têm surgido com a expansão do mercado, enquanto outros, provavelmente, não terão capacidade e sofrerão uma nova exclusão.

Submitted by Maria Dulce (mdulce@ndc.uff.br) on 2014-01-30T17:46:13Z No. of bitstreams: 1 Passos, Pamella-Tese-2013.pdf: 3216374 bytes, checksum: 476a2aa1e9ebc02e7b439404d314731a (MD5) / Made available in DSpace on 2014-01-30T17:46:13Z (GMT). No. of bitstreams: 1 Passos, Pamella-Tese-2013.pdf: 3216374 bytes, checksum: 476a2aa1e9ebc02e7b439404d314731a (MD5) Previous issue date: 2013 / Tendo sido apontada como responsável por 49% dos acessos à internet no país, em 2007, as lan houses assumiram importante papel no debate sobre inclusão digital no Brasil. Equipadas com computadores conectados à internet e cobrando por suas horas de uso, esses estabelecimentos espalharam-se rapidamente, sobretudo, nos espaços populares. Partindo do acompanhamento de duas lan houses situadas em favelas cariocas: Acari e Santa Marta, analisamos seus impactos sociais nos territórios em que estão inseridas. Elegendo três pontos analisadores: o Estado, os donos de lan house e seus frequentadores, refletimos acerca dos usos e mediações que observamos em nosso trabalho de campo. Nesse contexto, escolhemos a lan house como dispositivo para reflexão das Políticas Públicas no campo da segurança e da educação. Compartilhando dos referenciais da pesquisa-intervenção, recorremos à realização de oficinas que serviram como grupos focais, entrevistas semiestruturadas e observação participante. Com isso, buscamos tecer encontros entre uma pesquisa etnográfica e as concepções da cartografia na produção de uma análise histórica do tempo presente. Priorizando a dimensão qualitativa, o trabalho orienta-se pela valorização da experiência e do cotidiano, para compreender a cultura popular a partir de suas significações no seio dos embates da indústria cultural. / Having been singled out as responsible for 49% of the internet access in the country in 2007, lan houses have taken on an important role in the debate about digital inclusion in Brazil. Equipped with computers connected to the internet and charging for their hours of use, these establishments have spread rapidly, especially in popular spaces. Based on the monitoring of two lan houses located in favelas in Rio: Acari and Santa Marta, we analyzed their social impacts in the territoriesin which they operate. Three analyzing points were chosen: The State, the owners of lan houses and its regulars, we reflected about the uses and mediations which we had observed in our field work. In this context, we elected the lan house as a device for reflection of public policies in the field of security and education. Sharing of research-intervention reference, we used workshops which served as focus groups, semi-structured interviews and participants observation. This way, we tried to make meetings between an ethnographic research and concepts of cartography in the production of a historical analysis of the present time. Prioritizing the qualitative dimension, the work is guided by the appreciation of everyday experience to understand popular culture from their meanings within the cultural industry ties.

This dissertation examines the effect of environmental discourse and disaster risk reduction mapping in the favela Santa Marta, an urban informal settlement in the municipality of Rio de Janeiro, Brazil. With the world’s largest urban forest within the metro area, Rio de Janeiro is unusual for a metropolis of more than ten million people in the rapidly urbanizing country of Brazil. The government of Rio de Janeiro has attempted to control favela settlements since the early 20th century, but beginning in the 1990s the prefecture began delimiting favela settlements with environmentally protected areas called ecolimits. According to the state’s calculations, in the 2000s favelas began to rapidly expand into the urban forest, which is protected by the ecolimits and national parks. In 2009, the state built a wall around Santa Marta, justified by concerns about expansion into the adjacent forest. The state then labeled Santa Marta the model favela after infrastructure improvements there and the installation of the first Pacification Police Unit, a new form of community policing begun in 2008 for favelas. The focus of my study is the particular ways that the government has framed its resettlement efforts in Santa Marta and how favela residents responded. I employ the concept of biopolitics assemblage to critically investigate the state’s and international institutions’ discursive and material practices of disaster risk management in Santa Marta. I collected data using a mixed methods approach during 15 months of fieldwork. Through archival research, I document the history of favela control tactics and trace the roots of disaster risk management in Rio de Janeiro to a World Bank financed disaster response project initiated in 1988. Using ethnographic methods, I documented residents’ responses to and understandings of the government’s resettlement project for Santa Marta. My results indicate that the state has discursively shifted the problem of favelas from a social question to an environmental one, while residents continue to frame favela conditions as a social justice issue and challenge the state’s assessment of environmental risk.

Nesta pesquisa são apresentadas as contribuições dos métodos GPR e eletromagnético indutivo (equipamento EM-38) nos estudos de sítios arqueológicos de sambaquis costeiros Jabuticabeira II, Santa Marta IV, V, VII e VIII, e Encantada III, localizados no município de Jaguaruna, litoral centro-sul de Santa Catarina. Estes sítios são caracterizados por acúmulos de conchas carbonáticas construídos por sociedades do período pré-colonial (7,5 a 1,3 mil anos AP). Os estudos foram desenvolvidos, visando o mapeamento de artefatos de interesse arqueológico e de estruturas estratigráficas que auxiliem a compreensão do processo construtivo e funcional destes sítios. A interpretação dos resultados GPR foi apoiada nas modelagens numéricas GPR 2D e nas imagens 3D e integrada com os levantamentos EM-38, e tiveram como objetivos orientar as escavações arqueológicas. Os resultados permitiram encontrar alvos e artefatos arqueológicos, reduziram os custos no processo exploratório e preservaram o patrimônio histórico. Complementando o processo de interpretação integrada, os perfis estratigráficos e as análises granulométricas dos sedimentos provenientes dos furos de sondagens foram importantes para a definição dos ambientes de deposição onde os sambaquis estão assentados, corroborando de maneira significativa com as pesquisas em desenvolvimento no litoral de Santa Catarina. Em termos metodológicos, as antenas GPR blindadas de 200 MHz propiciaram um melhor compromisso entre a profundidade de investigação e a resolução vertical das camadas geo-arqueológicas, e a implementação da técnica de aquisição radial permitiu um mapeamento detalhado do sítio Jabuticabeira II de forma rápida, cobrindo uma grande área. Por outro lado, com o método eletromagnético indutivo (EM-38), a correção do efeito topográfico dos dados melhorou os contrastes de condutividade elétrica entre as estruturas arqueológicas e o background, permitindo assim, que os alvos pontuais, antes mascarados pela influência da topografia, fossem realçados. Com relação aos resultados geofísicos em estudos geoarqueológicos, no sambaqui Jabuticabeira II, foi possível caracterizar a geometria de uma estrutura geológica, associada a um paleo-canal e a deposição dos sedimentos em barras de pontal; mapear alvos arqueológicos e metálicos contemporâneos; traçar os limites do sítio; imagear uma camada conchífera, camadas antrópicas recentes e a profundidade do nível dágua; detectar a presença de dois sistemas deposicionais, paleolaguna e paleoduna, bem como delimitar o assentamento do sítio sobre estes ambientes por meio das informações das análises granulométricas dos sedimentos coletados nos furos de sondagens. Nos sambaquis de Santa Marta IV, V, VII e VIII, a integração dos dados GPR e EM38 permitiram o mapeamento de diversos alvos de grande importância para os estudos arqueológicos, tais como, paleofogueiras, sepultamentos e concentração de materiais cerâmicos e líticos, bem como feições geológicas, tais como, estruturação de camadas e paleotômbolos. Além disso, a redução do efeito topográfico sobre os dados de condutividade elétrica (EM-38) permitiu relacionar as regiões anômalas com um paleofogueira e uma concentração de material cerâmico. No sambaqui Encantada III, duas fortes anomalias GPR, caracterizadas por reflexões hiperbólicas, estavam associadas: i) a uma estrutura escura pontual, caracterizada como um bolsão de conchas carbonáticas; e ii) a presença de uma raiz de árvore concrecionada, que embora não seja de interesse arqueológico, é significativa, pois serve como um bom exemplo de ambiguidade na interpretação de dados geofísicos. Também foi possível delimitar o assentamento do sítio sobre os sedimentos da paleo-laguna, evidenciado pelas análises granulométricas dos sedimentos. / In this study, GPR and electromagnetic induction (EM-38 instrument) methodcontributions in coastal sambaqui archaeological sites (Jabuticabeira II, Santa Marta IV, V, VII and VIII as well as Encantada III) are presented. These sites are placed in Jaguaruna, Santa Catarina center-south coast. They are characterized by accumulation of carbonate shells built by societies in pre-colonial period (7.5 to 1.3 thousand years BP). The studies were developed aimed at mapping archaeological artifacts and stratigraphic structures that help to understand constructive and functional process of these sites. The interpretation of GPR results was supported by 2D GPR numerical modeling, 3D images and integrated with EM-38 surveys. They had as objectives to guide archaeological excavations. The results allowed finding archaeological targets and artifacts, reduced costs in exploratory process, and preserved historical heritage. Complementing integrated interpretation process, stratigraphic profiles and granulometric analysis of sediment from sounding drifts were important for defining the deposition environments where sambaquis (shell mounds) are settled, significantly supporting in developing research on Santa Catarina coast. Methodologically, 200 MHz shielded GPR antennas provided a better agreement between depth of investigation and vertical resolution of geoarchaeological layers, and the implementation of radial acquisition technique allowed a quickly detailed mapping of Jabuticabeira II site, covering a large area. Furthermore, with electromagnetic inductive method (EM-38), the topographic effect correction of data has improved the contrast in electrical conductivity between archaeological structures and background. Thus, punctual targets before masked by topography influence were highlighted. Regarding geophysical results in geoarchaeological studies, in Jabuticabeira II sambaqui, it was possible to characterize the geometry of a geological structure associated with a paleochannel and sediment deposition in point bars; to map archaeological and contemporary metal targets; to trace site boundary; to image shell layer, recent anthropic layers and water level depth; to detect the presence of two deposicional systems, paleolagoon and paleodune as well as to delimit the settlement site on these environments through information of granulometric analysis of sediments collected in sounding drifts. In Santa Marta IV, V, VII and VIII sambaquis, GPR and EM-38 data integration allowed mapping several targets of great importance for archaeological studies, such as paleofires, burials and concentration of ceramic and litic material as well as geological features, such as layer structuring and paleotombolos. Moreover, the reduction of topographic effect on electrical conductivity data (EM-38) allowed relating anomalous regions with a paleofire, and a concentration of ceramic material. In Encantada III sambaqui, two strong GPR anomalies characterized by hyperbolic reflections were associated with: i) a dark punctual structure, characterized as a pocket of shell carbonate, and ii) the presence of a concretion tree root that is significant, despite not of archaeological interest, because it serves as a good example of ambiguity in geophysical data interpretation. It was also possible to delimit the settlement site on paleolagoon sediments, evidenced by granulometric analysis of sediments.