The 2004 Sumatra tsunami as recorded on the Atlantic coast of South America

The 2004 Sumatra tsunami propagated throughout the World Ocean and was clearly recorded by tide gauges on the Atlantic coast of South America. A total of 17 tsunami records were found and subsequently examined for this region. Tsunami wave heights and arrival times are generally consistent with numerical modeling results. Maximum wave heights of more than 1.2 m were observed on the coasts of Uruguay and southeastern Brazil. Marked differences in tsunami height from pairs of closely located tide gauge sites on the coast of Argentina illustrate the importance that local topographic resonance effects can have on the observed wave response. Findings reveal that, outside the Indian Ocean, the highest waves were recorded in the South Atlantic and not in the Pacific as has been previously suggested

Discerning Satellite Subsystem Costs to Improve Cost Estimation

The race for supremacy in the space environment is accelerating, with the United States taking a significant step by establishing its dedicated military branch for space operations. Achieving dominance in this realm relies on efficiently managing costs and securing rapid funding to initiate new programs. One step towards accomplishing this goal is to comprehend the cost distribution across the primary components of a Space Vehicle Bus and to delve into lower-level Work Breakdown Structure (WBS) elements for more precise and expeditious cost estimations. To achieve this, descriptive statistics for a variety of Bus subsystem WBS elements are provided in this study. Additionally, this research helps facilitate data selection decisions when developing Cost Estimating Relationships (CERs). Over the years, there have been transformations in satellite sizes, shapes, orbits, and mission requirements. Cost practitioners must make decisions on how to model and/or segregate data by these characteristics when developing their estimates. This research provides a flowchart for practitioners to follow when making data decisions for their CERs. It is recommended that cost practitioners initially filter by mission or orbit types. The subsequent level of separation suggests filtering based on shape, but the loss of data points may make this infeasible in some instances. Satellite size is also considered, but not recommended

PERAN STAKEHOLDERS DALAM PENGEMBANGAN GEOWISATA SERTA IMPLIKASINYA TERHADAP CITRA DI KAWASAN CITUMANG

Potensi geowisata di Indonesia relatif cukup besar dan masih membutuhkan perhatian khusus untuk dikembangkan menjadi atraksi wisata. Geowisata merupakan aktivitas wisata yang memanfaatkan sumber daya geologi yang terdapat di alam dan lingkungan masyarakat. Dengan demikian, banyak stakeholders yang terlibat dalam pengelolaan sumber daya pariwisata ini untuk dijadikan suatu kawasan wisata. Terkait dengan hal tersebut, penelitian ini bertujuan untuk menganalisis peran setakeholders dalam pengembangan pariwisata dan implikasinya terhadap citra destinasi pada lokasi yang dipilih yaitu Kawasan Citumang, Kabupaten Pangandaran. Penelitian ini dilakukan dengan menggunakan metodologi penelitian kualitatif. Wawancara mendalam, observasi, dan studi data sekunder digunakan untuk mengumpulkan data. Data dianalisis dengan reduksi data melalui tahap pengkodean, pengelompokan kategori, dan kemudian penyajian dan penarikan kesimpulan. Hasil dari penelitian ini menunjukan bahwa Kawasan Citumang memiliki potensi untuk dikembangkan menjadi salah satu daya tarik geowisata dengan keanekaragaman bentang alam, keanekaragaman hayati serta sejarah dan budaya. Adapun hasil kedua teridentifikasi stakeholders yang terlibat diantaranya meliputi komunitas (karang taruna), masyarakat, pemerintah regional (dinas pariwisata dan kebudayaan), pemerintah (badan usaha milik negara) dengan menggunakan model stakeholder power interest yaitu menganalisis peran berdasarkan minat dan pengaruhnya terhadap pengembangan geowisata. Hasil ketiga teridentifikasi citra destinasi yang terbentuk di benak wisatawan menggunakan dimensi kognitif atau pengetahuan dan wawasan mengenai destinasi, dimensi afektif emosi atau perasaan yang tumbuh serta dimensi behavioral atau tindakan yang diambil oleh wisatawan The potential for geotourism in Indonesia is relatively large and still requires special attention to be developed into a tourist attraction. Geotourism is a tourist activity that utilizes geological resources found in nature and the community environment. Thus, many stakeholders are involved in managing this tourism resource to become a tourist area. Related to this, this research aims to analyze the role of stakeholders in tourism development and its implications for the destination image in the selected location, namely the Citumang area, Pangandaran Regency. This research was conducted using qualitative research methodology. In-depth interviews, observations, and secondary data studies were used to collect data. The data was analyzed by data reduction through the coding stage, grouping categories, and then presenting and drawing conclusions. The results of this research show that the Citumang area has the potential to be developed into a geotourism attraction with a diversity of landscapes, biodiversity as well as history and culture. The second result identified the stakeholders involved, including the community (youth organization), society, regional government (tourism and culture department), government (state-owned enterprises) using the stakeholder power interest model, namely analyzing roles based on interests and their influence on geotourism development. The third result identified the destination image that is formed in the minds of tourists using the cognitive dimension or knowledge and insight about the destination, the affective dimension of emotions or growing feelings and the behavioral dimension or actions taken by tourists

PENGARUH PELATIHAN TERHADAP KINERJA KARYAWAN PADA PT UNITED TRACTORS TBK PALEMBANG

Penelitian ini bertujuan untuk mengetahui pengaruh pelatihan terhadap kinerja karyawan pada PT United Tractors Tbk Palembang. Teknik analisa data yang digunakan adalah teknik kuantitatif dengan menggunakan program SPSS 26.0 for windows. Sampel yang diambil dalam penelitian ini adalah teknik sampel jenuh, dimana seluruh populasi dijadikan sampel, yaitu berjumlah 60 orang. Teknik pengumpulan data yang digunakan dalam penelitian ini adalah metode kuesioner. Analisis data yang digunakan yaitu uji validitas, uji reabilitas, uji asumsi klasik yang terdiri dari normalitas dan heteroskodastisitas. Kemudian dilakukan pengujian hipotesis menggunakan uji parsial/uji t, dan uji koefisien determinasi. Serta melalukan analisis regresi linear sederhana. Hasil penelitian ini ada pengaruh yang kuat antara Pelatihan (X) terhadap Kinerja Karyawan (Y) dengan regresi Y= 14,551 + 0,690X, menunjukan bahwa pelatihan berpengaruh positif dan signifikan terhadap kinerja karyawan, yang ditunjukan dengan koefisien regresi yang positif 0,690 dengan nilai thitung = 7,292 > ttabel = 1,67155. Nilai koefisien determinasi sebesar 47,8% sedangkan sisanya sebesar 52,2% dipengaruhi oleh faktor lain. hal ini diperkuat dengan probability significary 0,000 < 0,05. Dengan demikian Ho ditolak dan Ha diterima artinya terdapat pengaruh positif dan signifikan antara Pelatihan Terhadap Kinerja Karyawan pada PT United Tractors Tbk Palemban

Refratividade Atmosférica em Áreas Oceânicas Baseada em Dados de Sondagem Atmosférica na Região da Ilha de Trindade

A região costeira do Brasil possui um intenso tráfego marítimo, composto de vários tipos de embarcações. A segurança da navegação é importante e, portanto, as embarcações são dotadas de equipamentos de comunicação e detecção, sendo o desempenho desses fortemente influenciado pelas condições da propagação eletromagnética na atmosfera. Condições  anômalas na propagação eletromagnética são causadas por acentuados gradientes verticais da refratividade atmosférica, que podem ser avaliados com a utilização do índice de refratividade atmosférica M. O objetivo principal deste trabalho é avaliar as condições de refratividade atmosférica e estimar as alturas dos dutos atmosféricos baseado nesse índice, utilizando os dados de sondagens atmosféricas na região da Ilha da Trindade, entre os anos de 2005 e 2016. Os resultados obtidos mostraram a presença de 3348 dutos de superfície, sendo aproximadamente 65% das alturas abaixo de 220 m. As maiores médias de altura foram observadas nos meses de inverno, principalmente em junho e julho. Já os menores valores foram observados nos meses de dezembro. Nos estudos de casos, a avaliação dos perfis termodinâmicos demonstrou que, nos dias com ocorrência de dutos, foram observadas camadas instáveis próximas à superfície oceânica e camadas estáveis acima dessas. As condições sinóticas foram caraterizadas pela presença de um sistema de alta pressão ou pela atuação da Alta Subtropical Atlântico Sul. No episódio com ausência de dutos de superfície, foi registrada a presença de um sistema frontal, bem como um gradiente vertical nulo de umidade e a presença de uma camada limite estável, inibindo a formação de dutos

Biophysical interactions in the Cabo Frio upwelling system, southeastern Brazil

The rising of cold water from deeper levels characterizes coastal upwelling systems. This flow makes nutrients available in the euphotic layer, which enhances phytoplankton production and growth. On the Brazilian coast, upwelling is most intense in the Cabo Frio region (RJ). The basic knowledge of this system was reviewed in accordance with concepts of biophysical interactions. The high frequency and amplitude of the prevailing winds are the main factor promoting the rise of South Atlantic Central Water, but meanders and eddies in the Brazil Current as well as local topography and coast line are also important. Upwelling events are common during spring/summer seasons. Primary biomass is exported by virtue of the water circulation and is also controlled by rapid zooplankton predation. Small pelagic fish regulate plankton growth and in their turn are preyed on by predatory fish. Sardine furnishes an important regional fish stock. Shoreline irregularities define the embayment formation of the Marine Extractive Reserve of Arraial do Cabo making it an area with evident different intensities of upwelled water that harbors high species diversity. Consequently, on a small spatial scale there are environments with tropical and subtropical features, a point to be explored as a particularity of this ecosystem