|   | 
Details
   web
Records
Author Capotondi, A.; McGregor, S.; McPhaden, M.J.; Cravatte, S.; Holbrook, N.J.; Imada, Y.; Sanchez, S.C.; Sprintall, J.; Stuecker, M.F.; Ummenhofer, C.C.; Zeller, M.; Farneti, R.; Graffino, G.; Hu, S.J.; Karnauskas, K.B.; Kosaka, Y.; Kucharski, F.; Mayer, M.; Qiu, B.; Santoso, A.; Taschetto, A.S.S.; Wang, F.; Zhang, X.B.; Holmes, R.M.; Luo, J.J.; Maher, N.; Martinez-Villalobos, C.; Meehl, G.A.; Naha, R.; Schneider, N.; Stevenson, S.; Sullivan, A.; van Rensch, P.; Xu, T.T.
Title Mechanisms of tropical Pacific decadal variability Type
Year 2023 Publication Nature Review Earth & Environment Abbreviated Journal Nat. Rev. Earth Environ.
Volume 4 Issue 11 Pages 754-769
Keywords SEA-SURFACE TEMPERATURE; MERIDIONAL OVERTURNING CIRCULATION; EL-NINO/SOUTHERN OSCILLATION; NINO-SOUTHERN OSCILLATION; OCEAN HEAT-CONTENT; EQUATORIAL PACIFIC; NORTH PACIFIC; WIND STRESS; CLIMATE VARIABILITY; SUBTROPICAL CELLS
Abstract Naturally occurring tropical Pacific variations at timescales of 7-70 years – tropical Pacific decadal variability (TPDV) – describe basin-scale sea surface temperature (SST), sea-level pressure and heat content anomalies. Several mechanisms are proposed to explain TPDV, which can originate through oceanic processes, atmospheric processes or as an El Nino/Southern Oscillation (ENSO) residual. In this Review, we synthesize knowledge of these mechanisms, their characteristics and contribution to TPDV. Oceanic processes include off-equatorial Rossby waves, which mediate oceanic adjustment and contribute to variations in equatorial thermocline depth and SST; variations in the strength of the shallow upper-ocean overturning circulation, which exhibit a large anti-correlation with equatorial Pacific SST at interannual and decadal timescales; and the propagation of salinity-compensated temperature (spiciness) anomalies from the subtropics to the equatorial thermocline. Atmospheric processes include midlatitude internal variability leading to tropical and subtropical wind anomalies, which result in equatorial SST anomalies and feedbacks that enhance persistence; and atmospheric teleconnections from Atlantic and Indian Ocean SST variability, which induce winds conducive to decadal anomalies of the opposite sign in the Pacific. Although uncertain, the tropical adjustment through Rossby wave activity is likely a dominant mechanism. A deeper understanding of the origin and spectral characteristics of TPDV-related winds is a key priority.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2662-138X ISBN Medium
Area Expedition Conference
Notes WOS:001086343800002 Approved
Call Number UAI @ alexi.delcanto @ Serial 1911
Permanent link to this record
 

 
Author Corral, N.; Anrique, N.; Fernandes, D.; Parrado, C.; Caceres, G.
Title Power, placement and LEC evaluation to install CSP plants in northern Chile Type
Year 2012 Publication Renewable & Sustainable Energy Reviews Abbreviated Journal Renew. Sust. Energ. Rev.
Volume 16 Issue 9 Pages 6678-6685
Keywords CSP plant; Solar radiation; Northern Chile; LEC; Power plant capacity; Back-up and TES system; Placement evaluation
Abstract Chile is expecting a 5.4% growth in energy consumption per year until 2030, requiring new and better solutions for the upward trend of its electricity demand. This state leads to select and study one of the potential alternatives for electricity generation: concentrated solar power (CSP) plants. Such renewable technology found in Chile a very favorable condition. Recent researches indicate Atacama Desert as one of the best regions for solar energy worldwide, having an average radiation higher than in places where CSP plants are currently implemented, e.g. Spain and USA. The aim of this study is to present an analysis of levelized energy cost (LEC) for different power capacities of CSP plants placed in distinct locations in northern Chile. The results showed that CSP plants can be implemented in Atacama Desert with LECs around 19 (sic)US$/kWh when a gas-fired backup and thermal energy storage (TES) systems are fitted. This value increases to approximately 28 (sic)US$/kWh if there is no backup system. (C) 2012 Elsevier Ltd. All rights reserved.
Address [Corral, Nicolas; Anrique, Nicolas; Fernandes, Dalila; Parrado, Cristobal; Caceres, Gustavo] Univ Adolfo Ibanez, Fac Ingn & Ciencias, Santiago, Chile, Email: n.anrique@ieee.org
Corporate Author Thesis
Publisher Pergamon-Elsevier Science Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1364-0321 ISBN Medium
Area Expedition Conference
Notes WOS:000312822300012 Approved
Call Number UAI @ eduardo.moreno @ Serial 258
Permanent link to this record
 

 
Author Gazitua, M.C.; Morgante, V.; Poupin, M.J.; Ledger, T.; Rodriguez-Valdecantos, G.; Herrera, C.; Gonzalez-Chavez, M.D.; Ginocchio, R.; Gonzalez, B.
Title The microbial community from the early-plant colonizer (Baccharis linearis) is required for plant establishment on copper mine tailings Type
Year 2021 Publication Scientific Reports Abbreviated Journal Sci. Rep.
Volume 11 Issue 1 Pages 10448
Keywords BACTERIAL COMMUNITIES; HEAVY-METALS; PHYTOSTABILIZATION; REVEGETATION; RHIZOSPHERE; REMEDIATION; IMPACT; GROWTH; NORTH
Abstract Plants must deal with harsh environmental conditions when colonizing abandoned copper mine tailings. We hypothesized that the presence of a native microbial community can improve the colonization of the pioneer plant, Baccharis linearis, in soils from copper mining tailings. Plant growth and microbial community compositions and dynamics were determined in cultivation pots containing material from two abandoned copper mining tailings (Huana and Tambillos) and compared with pots containing fresh tailings or surrounding agricultural soil. Controls without plants or using irradiated microbe-free substrates, were also performed. Results indicated that bacteria (Actinobacteria, Gammaproteobacteria, and Firmicutes groups) and fungi (Glomus genus) are associated with B. linearis and may support plant acclimation, since growth parameters decreased in both irradiated (transiently without microbial community) and fresh tailing substrates (with a significantly different microbial community). Consistently, the composition of the bacterial community from abandoned copper mining tailings was more impacted by plant establishment than by differences in the physicochemical properties of the substrates. Bacteria located at B. linearis rhizoplane were clearly the most distinct bacterial community compared with those of fresh tailings, surrounding soil and non-rhizosphere abandoned tailings substrates. Beta diversity analyses showed that the rhizoplane bacterial community changed mainly through species replacement (turnover) than species loss (nestedness). In contrast, location/geographical conditions were more relevant than interaction with the plants, to explain fungal community differences.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2045-2322 ISBN Medium
Area Expedition Conference
Notes WOS:000658433400011 Approved
Call Number UAI @ alexi.delcanto @ Serial 1425
Permanent link to this record
 

 
Author Saavedra, L.M.; Saldias, G.S.; Broitman, B.R.; Vargas, C.A.
Title Carbonate chemistry dynamics in shellfish farming areas along the Chilean coast: natural ranges and biological implications Type
Year 2021 Publication Ices Journal Of Marine Science Abbreviated Journal ICES J. Mar. Sci.
Volume 78 Issue 1 Pages 323-339
Keywords HUMBOLDT CURRENT SYSTEM; OCEAN ACIDIFICATION; PHYSIOLOGICAL ENERGETICS; CONCHOLEPAS-CONCHOLEPAS; TEMPORAL VARIABILITY; SEASONAL VARIABILITY; NORTHERN PATAGONIA; CRASSOSTREA-GIGAS; PACIFIC OYSTER; CHLOROPHYLL-A
Abstract The increasing shellfish aquaculture requires knowledge about nearshore environmental variability to manage sustainably and create climate change adaptation strategies. We used data from mooring time series and in situ sampling to characterize oceanographic and carbonate system variability in three bivalve aquaculture areas located along a latitudinal gradient off the Humboldt Current System. Our results showed pH(T) <8 in most coastal sites and occasionally below 7.5 during austral spring-summer in the lower (-30 degrees S) and central (-37 degrees S) latitudes, related to upwelling. Farmed mussels were exposed to undersaturated (Omega(arag) < 1) and hypoxic (<2 ml l(-1)) waters during warm seasons at -37 degrees S, while in the higher latitude (43 degrees S) undersaturated waters were only detected during colder seasons, associated with freshwater runoff. We suggest that both Argopecten purpuratus farmed at -30 degrees S and Mytilus chilensis farmed at -43 degrees S may enhance their growth during summer due to higher temperatures, lower pCO(2), and oversaturated waters. In contrast, Mytilus galloprovincialis farmed at 37 degrees S grows better during spring-summer, following higher temperatures and high pCO(2). This knowledge is relevant for aquaculture, but it must be improved using high-resolution time series and in situ experimentation with farmed species to aid their adaptation to climate change and ocean acidification.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1054-3139 ISBN Medium
Area Expedition Conference
Notes WOS:000648942600027 Approved
Call Number UAI @ alexi.delcanto @ Serial 1414
Permanent link to this record