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| Registros recuperados: 43 | |
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| MIRANDA, E. E. de; OLIVEIRA, J. T. S.; MIRANDA, J. de S.; BARROS, R. J. S.. |
| Este trabalho apresenta quatro (4) equações capazes de estimar as precipitações anuais para qualquer ponto do Estado, partindo unicamente de seus parâmetros de localização geográfica. Ajustadas "in situ", elas foram elaboradas para uma área de 460.000 km2 que engloba todo o estado do Piauí e partes dos estados limítrofes, do Maranhão, Ceará, Pernambuco e Bahia. Cada equação tem as variáveis, distância, angulo, altitude, coordenadas cartesianas e suas interações com relação a uma estação de referência. Nas regiões estudadas as equações obtidas permitem uma estimação das precipitações anuais com um desvio médio de aproximadamente 10% para o conjunto das estações estudadas. dadas. |
| Tipo: Livros |
Palavras-chave: Distribuição espacial; Piauí; Precipitation; Distribution; Chuva; Precipitação pluvial; Meteorologia; Meteorology; Rain. |
| Ano: 1981 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132587 |
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| SILVA, A. de S.; LIMA, L. T. de; MACIEL, J. L.; ARAUJO, V. de P. A.. |
| O problema da escassez ou a falta de agua para consumo humano, animal e vegetal, no meio rural, e mais intenso nas regioes aridas e semi-aridas, que correspondem a 55% das terras continentais do planeta e tem uma populacao de 628 milhoes de pessoas. Tambem e questionavel o fato de que o setor de desenvolvimento menos favorecido atualmente pela ciencia e a tecnica, e o pequeno produtor agricola principalmente pela inexistencia de uma infraestrutura hidrica a nivel das glebas rurais, que permita viabilizar os demais segmentos da unidade de producao. Os motivos expostos, de maneira simplificada, apenas oferecem pontos para reflexao e assim devem ser entendidos, porque as necessidades basicas da regiao sao muito mais complexas, com o acesso a terra, ao credito... |
| Tipo: Outras publicações técnicas (INFOTECA-E) |
Palavras-chave: Captacao; Cisterna rural; Captation; Conservation; Rural cistern; Subsurface dam; Water reservoir; Cost; Natural resource; Recurso natural; Água; Barragem Subterrânea; Barreiro; Chuva; Conservação; Custo; Tecnologia; Rain; Technology; Water. |
| Ano: 1984 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133213 |
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| Mcmillan, A; Quartly, G; Srokosz, M; Tournadre, Jean. |
| [1] Recently developed algorithms have shown the potential recovery of rainfall information from spaceborne dual-frequency altimeters. Given the long mission achieved with TOPEX and the prospect of several other dual-frequency altimeters, we need to validate the altimetrically derived values so as to foster their integration with rain information from different sensors. Comparison with some alternative climatologies shows the bimonthly means for TOPEX to be low. Rather than apply a bulk correction we investigate individual rain events to understand the cause of TOPEX's underestimation. In this paper we compare TOPEX with near-simultaneous ground-based rain radars based at a number of locations, examining both the detection of rain and the quantitative... |
| Tipo: Text |
Palavras-chave: Attenuation; Validation; Rain; Satellite remote sensing; TOPEX. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/2002/publication-695.pdf |
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| Tran, N; Tournadre, Jean; Femenias, P. |
| This letter provides validation results on both Envisat altimeter rain detection flag and rain rate estimates. This assessment was performed based on 18-month collocated data sets between Envisat with two sensor measurements from the Tropical Rainfall Measuring Mission, i.e., the microwave imager and the precipitation radar. Along with the comparison between closest sensor measurements with strict spatial and temporal criteria, discussion is also provided on environmental context insight when interpreting comparison results based on collocated data. |
| Tipo: Text |
Palavras-chave: Remote sensing; Rain; Radar cross sections; Altimetry. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-4719.pdf |
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| Tournadre, Jean; Quilfen, Yves. |
| [1] The two scatterometers currently in operation, the Ku-band NASA Seawinds on the QuikScat satellite and the C-band AMI-Wind on the ERS-2 satellite, are designed to infer the ocean wind vectors from sea surface radar backscatter measurements. They provide excellent coverage of the ocean, and their wind products are of great value for ocean and meteorological communities. However, the presence of rain within scatterometer cells can significantly modify the sea surface backscatter coefficient and hence alter the wind vector retrieval. These perturbations can hamper the analysis of wind fields within atmospheric low-pressure systems or tropical cyclones. Rain perturbations result from volume scattering and attenuation by raindrops in the atmosphere as well... |
| Tipo: Text |
Palavras-chave: Model of interaction; Ocean surface winds; Rain; Scatterometer. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/2003/publication-513.pdf |
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| Tournadre, Jean; Quilfen, Yves. |
| In October and early November 1999, the GOGP99 experiment collected hydrological, currentmeter, tide recorder, thermistor and drifting buoy data near the Strait of Hormuz. Data analysis provides the water mass structure in the Strait: Persian Gulf Water (PGW) core is banked against the Omani coast, while Indian Ocean Surface Water (IOSW) lies near the Iranian coast. These water masses are most often covered by a homogeneous surface layer. Thermohaline characteristics of the PGW core decrease substantially downstream, from the Persian/Arabian Gulf to the Gulf of Oman. PGW and IOSW thermohaline characteristics and distribution also exhibit notable changes at periods shorter than a month as shown by repeated hydrological sections. The tidal signal measured... |
| Tipo: Text |
Palavras-chave: Wind retrieval; Rain; Scatterometer. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-388.pdf |
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| Gualancañay, E.. |
| During the rainy season of the ecuadorian coast (march 2012) in the study area including two environmental: Marine area and estuarine area. Were identified in Caraquez Bay the following species of benthic foraminifera: Bulimina pulchella, Cibicidea aknerianus, C. bertheloti, F. boueana, Elphidium articulatum, F. typical, Nonion pizarrense, Quinqueloculina lamarckiana, Rotalia beccarii, Triloculina globulosa, y Uvigerina incilis. These species correspond to the Pananmian zoogeographic province proposed by Boltovskoy (1965) and confirmed by Boltovskoy and Gualancañay (1975, 1986). |
| Tipo: Journal Contribution |
Palavras-chave: Foraminifera; Biogeography; Rain; Seasons; Environments. |
| Ano: 2013 |
URL: http://hdl.handle.net/1834/5753 |
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| Zambrano, E.. |
| Se revisan las características generales de los eventos El Niño en el Pacífico Tropical y la manera como se manifiestan frente a las costas del Ecuador. Se analiza la elevación del nivel del mar en la estación de La Libertad y se compara con el contenido de calor en el Pacífico central. Utilizando la información de las boyas del programa TAO se analiza la propagación de temperatura y altura dinámica desde el Pacífico ecuatorial occidental hasta el borde oriental. De igual manera se analiza el arribo de ondas ecuatoriales al borde oriental del Pacífico y su incidencia en el nivel medio del mar. El Niño 2006-07 concluyó rápidamente y de intensidad débil; puede considerarse como en evento de corta duración que presentó las características generales de otros... |
| Tipo: Journal Contribution |
Palavras-chave: El Nino phenomena; Sea level; Buoys; Rain; Edge waves; Equatorial waves; Temperature; Sea level; Rain; Temperature. |
| Ano: 2007 |
URL: http://hdl.handle.net/1834/2337 |
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| Bruynseels, F.; Storms, H.; Van Grieken, R.; Van der Auwera, L.. |
| On aerosol and rain water samples, collected in the Southern Bight of the North Sea, single particle analyses were performed using both laser microprobe mass analysis and electron-probe X-ray microanalysis in combination with an automated image analysis system.In the aerosols collected from an air mass that had traveled from the Atlantic Ocean along the coast of North France, pure seasalt constituted the most abundant particle type, while aluminosilicates (mostly spherical fly-ash particles) amounted to about 20% and mixed seasalt/aluminosilicates, carbonaceous particles, CaSO<sub>4</sub> and spherical iron oxides contributed each 5-10%. In air masses that had a longer residence time over the continent, spherical iron oxides, carbonaceous... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aerosols; Rain. |
| Ano: 1988 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3125 |
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| Eriyagama, Nishadi; Smakhtin, Vladimir U.; Chandrapala, Lalith; Fernando, Karin. |
| There is ample evidence to suggest that Sri Lanka’s climate has already changed. However, the bigger question of national importance is what Sri Lanka’s climate will look like in 50 or 100 years and how prepared the country is to face such changes. This report reviews the status of climate change (CC) research/activities in Sri Lanka in terms of observed and projected climatic changes, their impacts on water resources and agriculture, CC mitigation and adaptation, and research needs. The study also developed a pilot level CC Vulnerability Index, which was subsequently mapped at district level. The maps indicate that typical farming districts such as Nuwara Eliya, Badulla, Moneragala, Ratnapura and Anuradhapura are the most vulnerable to CC due to their... |
| Tipo: Report |
Palavras-chave: Climate change; Rain; Water resource management; Crops; Mapping; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Production Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy. |
| Ano: 2010 |
URL: http://purl.umn.edu/94787 |
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| Registros recuperados: 43 | |
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