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https://www.readbyqxmd.com/read/28346899/multi-scale-approach-to-euro-atlantic-climatic-cycles-based-on-phenological-time-series-air-temperatures-and-circulation-indexes
#1
Luigi Mariani, Franco Zavatti
The spectral periods in North Atlantic Oscillation (NAO), Atlantic Multidecadal Oscillation (AMO) and El Nino Southern Oscillation (ENSO) were analyzed and has been verified how they imprint a time series of European temperature anomalies (ETA), two European temperature time series and some phenological series (dates of cherry flowering and grapevine harvest). Such work had as reference scenario the linear causal chain MCTP (Macroscale Circulation→Temperature→Phenology of crops) that links oceanic and atmospheric circulation to surface air temperature which in its turn determines the earliness of appearance of phenological phases of plants...
March 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28333165/mass-coral-mortality-under-local-amplification-of-2%C3%A2-%C3%A2-c-ocean-warming
#2
Thomas M DeCarlo, Anne L Cohen, George T F Wong, Kristen A Davis, Pat Lohmann, Keryea Soong
A 2 °C increase in global temperature above pre-industrial levels is considered a reasonable target for avoiding the most devastating impacts of anthropogenic climate change. In June 2015, sea surface temperature (SST) of the South China Sea (SCS) increased by 2 °C in response to the developing Pacific El Niño. On its own, this moderate, short-lived warming was unlikely to cause widespread damage to coral reefs in the region, and the coral reef "Bleaching Alert" alarm was not raised. However, on Dongsha Atoll, in the northern SCS, unusually weak winds created low-flow conditions that amplified the 2 °C basin-scale anomaly...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28320394/el-ni%C3%A3-o-southern-oscillation-as-an-early-warning-tool-for-malaria-outbreaks-in-india
#3
Ramesh C Dhiman, Soma Sarkar
BACKGROUND: Risks of malaria epidemics in relation to El Niño and Southern Oscillation (ENSO) events have been mapped and studied at global level. In India, where malaria is a major public health problem, no such effort has been undertaken that inter-relates El Niño, Indian Summer Monsoon Rainfall (ISMR) and malaria. The present study has been undertaken to find out the relationship between ENSO events, ISMR and intra-annual variability in malaria cases in India, which in turn could help mitigate the malaria outbreaks...
March 20, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28318380/pup-mortality-and-evidence-for-pathogen-exposure-in-galapagos-sea-lions-zalophus-wollebaeki-on-san-cristobal-island-galapagos-ecuador
#4
Judith Denkinger, Nataly Guevara, Sofia Ayala, Juan Carlos Murillo, Maximilian Hirschfeld, Ignasi Montero-Serra, Katharina Fietz, Tracey Goldstein, Mark Ackermann, Veronica Barragán, Francisco Cabrera, Cristina Chavez, Edward J Dubovi, Jael Martinez, Gabriel Trueba
The Galapagos sea lion ( Zalophus wollebaeki ), an endangered species, experiences high pup mortality (up to 100%) in years when El Niño events reduce food supply in the Galapagos Islands. Mortality of pups in non-El Niño years is estimated to be 5% in undisturbed colonies. From 2009 to 2012 we observed high pup mortality (up to 66%) in colonies close to the Galapagos capital, Puerto Baquerizo Moreno, where contact with humans, domestic animals, and rats is frequent. Gross postmortem findings from 54 pups included hemorrhagic lesions in liver and congestion in lungs; histopathology suggested a possible association with infectious diseases...
March 20, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28317857/enhanced-biennial-variability-in-the-pacific-due-to-atlantic-capacitor-effect
#5
Lei Wang, Jin-Yi Yu, Houk Paek
The El Niño-Southern Oscillation (ENSO) and the variability in the Pacific subtropical highs (PSHs) have major impacts on social and ecological systems. Here we present an Atlantic capacitor effect mechanism to suggest that the Atlantic is a key pacemaker of the biennial variability in the Pacific including that in ENSO and the PSHs during recent decades. The 'charging' (that is, ENSO imprinting the North Tropical Atlantic (NTA) sea surface temperature (SST) via an atmospheric bridge mechanism) and 'discharging' (that is, the NTA SST triggering the following ENSO via a subtropical teleconnection mechanism) processes alternate, generating the biennial rhythmic changes in the Pacific...
March 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/28300135/a-combination-mode-of-climate-variability-responsible-for-extremely-poor-recruitment-of-the-japanese-eel-anguilla-japonica
#6
Yong-Fu Lin, Chau-Ron Wu, Yu-San Han
Satellite data and assimilation products are used to investigate fluctuations in the catch of Japanese eel (Anguilla japonica) in eastern Asian countries. It has been reported that the salinity front has extended farther south, which has shifted the eel's spawning grounds to a lower latitude, resulting in smaller eel catches in 1983, 1992, and 1998. This study demonstrates that interannual variability in the eel catch is strongly correlated with the combination mode (C-mode), but not with the El Niño-Southern Oscillation...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28294113/complex-picture-for-likelihood-of-enso-driven-flood-hazard
#7
R Emerton, H L Cloke, E M Stephens, E Zsoter, S J Woolnough, F Pappenberger
El Niño and La Niña events, the extremes of ENSO climate variability, influence river flow and flooding at the global scale. Estimates of the historical probability of extreme (high or low) precipitation are used to provide vital information on the likelihood of adverse impacts during extreme ENSO events. However, the nonlinearity between precipitation and flood magnitude motivates the need for estimation of historical probabilities using analysis of hydrological data sets. Here, this analysis is undertaken using the ERA-20CM-R river flow reconstruction for the twentieth century...
March 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28279021/surface-current-in-hotspot-serves-as-a-new-and-effective-precursor-for-el-ni%C3%A3-o-prediction
#8
Jianing Wang, Youyu Lu, Fan Wang, Rong-Hua Zhang
The El Niño and Southern Oscillation (ENSO) is the most prominent sources of inter-annual climate variability. Related to the seasonal phase-locking, ENSO's prediction across the low-persistence barrier in the boreal spring remains a challenge. Here we identify regions where surface current variability influences the short-lead time predictions of the July Niño 3.4 index by applying a regression analysis. A highly influential region, related to the distribution of wind-stress curl and sea surface temperature, is located near the dateline and the southern edge of the South Equatorial Current...
December 2017: Scientific Reports
https://www.readbyqxmd.com/read/28263014/human-disturbance-amplifies-amazonian-el-ni%C3%A3-o-southern-oscillation-signal
#9
Mark B Bush, Alexander Correa-Metrio, Robert van Woesik, Courtney R Shadik, Crystal N H McMichael
The long-term interaction between human activity and climate is subject to increasing scrutiny. Humans homogenize landscapes through deforestation, agriculture, and burning and thereby might reduce the capacity of landscapes to provide archives of climate change. Alternatively, land-use change might overwhelm natural buffering and amplify latent climate signals, rendering them detectable. Here we examine a sub-annually resolved sedimentary record from Lake Sauce in the western Amazonian lowlands that spans 6900 years...
March 6, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28258340/variability-trends-and-teleconnections-of-stream-flows-with-large-scale-climate-signals-in-the-omo-ghibe-river-basin-ethiopia
#10
Mekonnen Adnew Degefu, Woldeamlak Bewket
This study assesses variability, trends, and teleconnections of stream flow with large-scale climate signals (global sea surface temperatures (SSTs)) for the Omo-Ghibe River Basin of Ethiopia. Fourteen hydrological indices of variability and extremes were defined from daily stream flow data series and analyzed for two common periods, which are 1972-2006 for 5 stations and 1982-2006 for 15 stations. The Mann-Kendall's test was used to detect trends at 0.05 significance level, and simple correlation analysis was applied to evaluate associations between the selected stream flow indices and SSTs...
April 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28256561/consecutive-record-breaking-high-temperatures-marked-the-handover-from-hiatus-to-accelerated-warming
#11
Jingzhi Su, Renhe Zhang, Huijun Wang
Closely following the hiatus warming period, two astonishing high temperature records reached in 2014 and 2015 consecutively. To investigate the occurrence features of record-breaking high temperatures in recent years, a new index focusing the frequency of the top 10 high annual mean temperatures was defined in this study. Analyses based on this index shown that record-breaking high temperatures occurred over most regions of the globe with a salient increasing trend after 1960 s, even during the so-called hiatus period...
March 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28253325/cholera-forecast-for-dhaka-bangladesh-with-the-2015-2016-el-ni%C3%A3-o-lessons-learned
#12
Pamela P Martinez, Robert C Reiner, Benjamin A Cash, Xavier Rodó, Mohammad Shahjahan Mondal, Manojit Roy, Mohammad Yunus, A S G Faruque, Sayeeda Huq, Aaron A King, Mercedes Pascual
A substantial body of work supports a teleconnection between the El Niño-Southern Oscillation (ENSO) and cholera incidence in Bangladesh. In particular, high positive anomalies during the winter (Dec-Feb) in sea surface temperatures (SST) in the tropical Pacific have been shown to exacerbate the seasonal outbreak of cholera following the monsoons from August to November. Climate studies have indicated a role of regional precipitation over Bangladesh in mediating this long-distance effect. Motivated by this previous evidence, we took advantage of the strong 2015-2016 El Niño event to evaluate the predictability of cholera dynamics for the city in recent times based on two transmission models that incorporate SST anomalies and are fitted to the earlier surveillance records starting in 1995...
2017: PloS One
https://www.readbyqxmd.com/read/28244793/ayudas-ergog%C3%A3-nicas-en-el-deporte
#13
Virginia Santesteban Moriones, Javier Ibáñez Santos
Introducción: muy pocos suplementos nutricionales han demostrado científicamente su eficacia como ayuda ergogénica. Esta revisión analizará el monohidrato de creatina (MC), el β-hidroxi-β-metilbutirato (HMB), el bicarbonato sódico (BS), la β-alanina y la cafeína.Objetivos: analizar la eficacia, mecanismos de acción, dosis, efectos adversos y algunos deportes que se pueden beneficiar de su consumo.Métodos: búsqueda en la base de datos PubMed de revisiones bibliográficas de los últimos 15 años y artículos originales de los últimos 5 años de las sustancias estudiadas...
February 1, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28244767/registro-del-grupo-nadya-senpe-de-nutrici%C3%A3-n-enteral-domiciliaria-en-espa%C3%A3-a-a%C3%A3-os-2014-y-2015
#14
Carmina Wanden-Berghe, Luis Miguel Luengo, Julia Álvarez, Rosa Burgos, Cristina Cuerda, Pilar Matía, Carmen Gómez Candela, Miguel Ángel Martínez Olmos, Montserrat Gonzalo, Alicia Calleja, Cristina Campos, Antonio Pérez de la Cruz, José Antonio Irles, Pere Leyes, Rebeca Sánchez, Daniel De Luis Román, Daniel Cardona, Nieves Santacruz, José Pablo Suárez, Carmen Ballesta, Jordi Salas, María Ángeles Penacho, Carmen Gardez, María José Martínez, Bárbara Cánovas, José Manuel Moreno, Dolores Del Olmo, Fátima Carabaña, Nuria Virgili, Isabel Higuera, Silvia Mauri, Olga Sánchez-Vilar, Nuria Miserachs, Miguel Ángel Ponce, Yaiza García, Jesús M Morán, Antxón Apezetxea, Cristina Tejera, Alfonso Calañas, Ana Cantón, Patricia Díaz, Grupo Nadya-Senpe
Objetivo: exponer los resultados del registro de nutrición enteral domiciliaria (NED) del año 2014 y 2015 del Grupo NADYA-SENPE.Métodos: se recopilaron los pacientes introducidos en el registro desde el 1 de enero al 31 de diciembre de 2014 y la mismas fechas de 2015, y se procedió al análisis descriptivo y analítico de los datos.Resultados: en el año 2014, se registraron 3.749 pacientes y en 2015, 4.202; la prevalencia fue de 80,58 pacientes/millón de habitantes en el año 2014 y de 90,51 en 2015. Por sexos, hubo un 49,9% de mujeres en 2014 y un 50,3% en 2015...
February 1, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28215613/examining-the-utility-of-coral-ba-ca-as-a-proxy-for-river-discharge-and-hydroclimate-variability-at-coiba-island-gulf-of-chirqu%C3%A3-panam%C3%A3
#15
Logan D Brenner, Braddock K Linsley, Robert B Dunbar
Panamá's extreme hydroclimate seasonality is driven by Intertropical Convergence Zone rainfall and resulting runoff. River discharge (Q) carries terrestrially-derived barium to coastal waters that can be recorded in coral. We present a Ba/Ca record (1996-1917) generated from a Porites coral colony in the Gulf of Chiriquí near Coiba Island (Panamá) to understand regional hydroclimate. Here coral Ba/Ca is correlated to instrumental Q (R=0.67, p<0.001), producing a seasonally-resolved Reduced Major Axis regression of Ba/Ca (μmol/mol)=Q (m(3)/s)×0...
February 15, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28211457/leading-modes-of-tropical-pacific-subsurface-ocean-temperature-and-associations-with-two-types-of-el-ni%C3%A3-o
#16
Zhiyuan Zhang, Baohua Ren, Jianqiu Zheng
Using empirical orthogonal function (EOF) analysis of the monthly tropical Pacific subsurface ocean temperature anomalies (SOTA) from 1979 to 2014, we detected three leading modes in the tropical Pacific subsurface temperature. The first mode has a dipole pattern, with warming in the eastern Pacific and cooling in the western Pacific, and is closely related to traditional El Niño. The second mode has a monopole pattern, with only warming in the central Pacific subsurface. The third mode has a zonal tripole pattern, with warming in the off-equatorial central Pacific and cooling in the far eastern Pacific and western Pacific...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28198924/the-issue-of-race-in-the-work-of-domingos-guedes-cabral
#17
Juanma Sánchez Arteaga, Ronnie Jorge Tavares de Almeida, Charbel Niño El-Hani
In 1875 Bahia, medicine and evolutionism were used by the physician, journalist, and republican militant Domingos Guedes Cabral as ideological weapons to propose a radical program of social reforms in Brazil in the areas of education, marriage control, medical care to the alienated, changes in the penal system, etc., all of which were based on the scientific knowledge of that time. Among the social ideas of Guedes Cabral, the question of race will be the main focus of this analysis. In this sense, Domingos Guedes Cabral is a particularly significant example for understanding the initial steps in the peculiar alliance between evolutionism, medicine, and scientific racism in Brazil since the 1870s, when Darwinism first arrived in the country...
December 2016: História, Ciências, Saúde—Manguinhos
https://www.readbyqxmd.com/read/28195580/extreme-oceanographic-forcing-and-coastal-response-due-to-the-2015-2016-el-ni%C3%A3-o
#18
Patrick L Barnard, Daniel Hoover, David M Hubbard, Alex Snyder, Bonnie C Ludka, Jonathan Allan, George M Kaminsky, Peter Ruggiero, Timu W Gallien, Laura Gabel, Diana McCandless, Heather M Weiner, Nicholas Cohn, Dylan L Anderson, Katherine A Serafin
The El Niño-Southern Oscillation is the dominant mode of interannual climate variability across the Pacific Ocean basin, with influence on the global climate. The two end members of the cycle, El Niño and La Niña, force anomalous oceanographic conditions and coastal response along the Pacific margin, exposing many heavily populated regions to increased coastal flooding and erosion hazards. However, a quantitative record of coastal impacts is spatially limited and temporally restricted to only the most recent events...
February 14, 2017: Nature Communications
https://www.readbyqxmd.com/read/28184227/using-ceres-maize-and-enso-as-decision-support-tools-to-evaluate-climate-sensitive-farm-management-practices-for-maize-production-in-the-northern-regions-of-ghana
#19
Dilys S MacCarthy, Samuel G K Adiku, Bright S Freduah, Francis Gbefo, Alpha Y Kamara
Maize (Zea mays) has traditionally been a major cereal staple in southern Ghana. Through breeding and other crop improvement efforts, the zone of cultivation of maize has now extended to the northern regions of Ghana which, hitherto, were the home to sorghum and millet as the major cereals. Maize yield in the northern Ghana is hampered by three major biophysical constraints, namely, poor soil fertility, low soil water storage capacity and climate variability. In this study we used the DSSAT crop model to assess integrated water and soil management strategies that combined the pre-season El-Niño-Southern Oscillation (ENSO)-based weather forecasting in selecting optimal planting time, at four locations in the northern regions of Ghana...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28181570/enso-elicits-opposing-responses-of-semi-arid-vegetation-between-hemispheres
#20
Anzhi Zhang, Gensuo Jia, Howard E Epstein, Jiangjiang Xia
Semi-arid ecosystems are key contributors to the global carbon cycle and may even dominate the inter-annual variability (IAV) and trends of the land carbon sink, driven largely by the El Niño-Southern Oscillation (ENSO). The linkages between dynamics of semi-arid ecosystems and climate at the hemispheric scale however are not well known. Here, we use satellite data and climate observations from 2000 to 2014 to explore the impacts of ENSO on variability of semi-arid ecosystems, using the Ensemble Empirical Mode Decomposition method...
February 9, 2017: Scientific Reports
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