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| Sapp, Joseph W.; Mouche, Alexis; Jelenak, Zorana; Chang, Paul S.; Frasier, Stephen J.. |
| In Winter 2017, the University of Massachusetts Amherst's Imaging Wind and Rain Airborne Profiler (IWRAP) was flown on a National Oceanic and Atmospheric Administration (NOAA) WP-3D Hurricane Hunter aircraft under the direction of scientists from Center for Satellite Applications and Research (STAR) at NOAA/National Environmental Satellite, Data, and Information Service (NESDIS) over the North Atlantic ocean out of Shannon, Ireland. IWRAP is a dual-frequency, conically scanning, profiling Doppler radar initially developed by Microwave Remote Sensing Laboratory (MIRSL) at the University of Massachusetts Amherst that is routinely installed on the NOAA WP-3D research aircraft. The flight on February 6, 2017, targeted a region of high winds (greater than 30... |
| Tipo: Text |
Palavras-chave: Satellites; Aircraft; Spaceborne radar; Synthetic aperture radar; Sea measurements; Wind speed; C-band; Cross polarization; Normalized radar cross section (NRCS); Ocean winds; Scatterometry. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00640/75251/75648.pdf |
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| Gaye, A.; Citeau, J.. |
| The atmospheric water vapor, a main climatic parameter, remains also one of the less well known in the inter tropical area. Different space programs have been carried out to improve its measure: the data provided by these experimental or operational programs, give an alternate and complementary information the model’s analysis. Moreover, the time series available today, are long enough to allow studies of variability of different climatic parameters. The following contribution, dedicated to the climate of the Western Africa, analyses the atmospheric humidity as retrieved by NOAA8/TOVS12 dated over the last 20 years. The climatology of the upper tropospheric humidity (UTH13), retrieved from HIRS-121, evidences the importance of the position and the... |
| Tipo: Report |
Palavras-chave: Climate; Noaa/Tovs; Intertropical zone of convergence; Subsidence; Satellites; SSM/I; Evaporation; Monsoons. |
| Ano: 2000 |
URL: http://hdl.handle.net/1834/571 |
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| Machado Neto, Arlindo de Paula; Batista, Antonio Carlos; Soares, Ronaldo Viana; Biondi, Daniela; de Morais, Riubi Lopes. |
| O presente estudo teve por objetivo analisar o comportamento da Fórmula de Monte Alegre (FMA) e quantificar os focos de calor detectados por satélites de referência, comparando os mesmos com os incêndios ocorridos no Parque Nacional da Chapada dos Guimarães de 2007 a 2015. O monitoramento dos focos de calor foi realizado através de imagens dos satélites AQUA, TERRA e NOAA, cujos dados diários de focos detectados foram usados para compor a série temporal ao longo dos anos, permitindo a análise de tendências dos números de focos para o parque. Os dados foram adquiridos na plataforma do Instituto Nacional de Pesquisas Espaciais, na base de dados históricos do Instituto Nacional de Meteorologia e junto à gerência do parque. Na maioria dos anos houve uma... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Engenharia Florestal/Conservação da natureza Incêndios florestais; Unidade de conservação; Satélites Forest fires; Conservation units; Satellites. |
| Ano: 2017 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1440 |
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| MacAuley, Molly K.; Darmstadter, Joel; Fini, John N.; Greenberg, Joel S.; Maulbetsch, John S.; Schaal, A. Michael; Styles, Geoffrey S.W.; Vedda, James A.. |
| Satellite solar power (SSP) has been suggested as an alternative to terrestrial energy resources for electricity generation. In this study, we consider the market for electricity from the present to 2020, roughly the year when many experts expect SSP to be technically achievable. We identify several key challenges for SSP in competing with conventional electricity generation in developed and developing countries, discuss the role of market and economic analysis as technical development of SSP continues during the coming years, and suggest future research directions to improve understanding of the potential economic viability of SSP. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Energy economics; Solar power; Space; Satellites; Resource /Energy Economics and Policy. |
| Ano: 2000 |
URL: http://purl.umn.edu/10542 |
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| PERALTA,DAVID JULIAN M.; SANTOS,DOUGLAS S. DOS; TIKAMI,AURO; SANTOS,WALTER A. DOS; PEREIRA,EDSON W.R.. |
| Abstract Software Defined Radio (SDR) uses a processor, a special receiver and software that play the main parts of the receiver (mixer, filters, amplifiers, modulators, demodulators, etc.) and it is quite advantageous for its flexibility and compact size as it reduces the amount of hardware components while adapting for different needs. This work briefly presents the SDR concept and approach for obtaining satellite telemetries and imagery in the context of different modulation schemes, link budget requirements and different satellites types. Two case studies are presented for supporting affordable ground segment and promoting satellites projects in Brazil. Reception from the 1st Brazilian picosatellite, Tancredo-1, with specific software developed, UbaTM... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ground stations; Satellites; Software Defined Radio; Space systems. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000603175 |
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