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Author Barria, P.; Ocampo-Melgar, A.; Chadwick, C.; Galleguillos, M.; Garreaud, R.; Diaz-Vasconcellos, R.; Poblete, D.; Rubio-Alvarez, E. doi  openurl
  Title Comment on: “The impact of a lack of government strategies for sustainable water management and land use planning on the hydrology of water bodies: lessons learned from the disappearance of the Aculeo Lagoon in central Chile” by Valdes-Pineda et al. 2022 in Sustainability, 14(1), 413 Type
  Year 2022 Publication Regional Environmental Change Abbreviated Journal Reg. Environ. Change  
  Volume 22 Issue 4 Pages 131  
  Keywords Drought; Water budget; Anthropogenic; Attribution; Decision-making; Land use/land cover  
  Abstract Valdes-Pineda et al. (Sustainability 14:413, 2022) present data for changes in climate, socio-economic, and land use and land cover (LULC) from diverse sources, concluding that the main causes for the desiccation of the Aculeo Lake were the river deviations and aquifer pumping, along with the impact of reduced precipitation. Based on that, they infer that the previous study of Barria et al. (Reg Environ Change 21:1-5, 2021a), which concluded that the impact of the decade-long drought was ten times larger than the increase of human extractions on the lake desiccation lacks scientific validity. We disagree with the conclusions from Valdes-Pineda et al. (Sustainability 14:413, 2022) and document that their article uses fragmentary information of a complex system, misinterprets of our results, and fails to present a reliable attribution methodology. We show that the hypothesis that the disappearance of Aculeo Lake was largely due to local anthropogenic uses is unsupported.  
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  ISSN 1436-3798 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000881652500001 Approved  
  Call Number UAI @ alexi.delcanto @ Serial 1657  
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Author Cruz, J.J.; Escudero, F.; Alvarez, E.; da Silva, L.F.F.; Carvajal, G.; Thomsen, M.; Fuentes, A. doi  openurl
  Title Three-wavelength broadband soot pyrometry technique for axisymmetric flames Type
  Year 2021 Publication Optics Letters Abbreviated Journal Opt. Lett.  
  Volume 46 Issue 11 Pages 2654-2657  
  Keywords VOLUME FRACTION; DIFFUSION FLAMES; TEMPERATURE; ABSORPTION; ETHYLENE  
  Abstract Soot temperature measurements in laminar flames are often performed through two-color broadband emission pyrometry (BEMI) or modulated absorption/emission (BMAE) techniques, using models to relate the ratio between flame intensities at two different wavelengths with soot temperature. To benefit from wider spectral range and increase the accuracy of experimental estimation of soot temperature, this work proposes a new approach that uses three-color broadband images captured with a basic color camera. The methodology is first validated through simulations using numerically generated flames from the CoFlame code and then used to retrieve soot temperature in an experimental campaign. The experimental results show that using three-color and BEMI provides smoother reconstruction of soot temperature than two-color and BMAE when small disturbances exist in the measured signals due to a reduced experimental noise effect. A sensitivity analysis shows that the retrieved temperature from three-color BEMI is more resilient to variations on the ratio of measured signals than BMAE, which is confirmed by an error propagation analysis based on a Monte Carlo approach.  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0146-9592 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000658132700025 Approved  
  Call Number UAI @ alexi.delcanto @ Serial 1413  
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Author Verdugo, I.; Cruz, J.J.; Alvarez, E.; Reszka, P.; da Silva, L.F.F.; Fuentes, A. doi  openurl
  Title Candle flame soot sizing by planar time-resolved laser-induced incandescence Type
  Year 2020 Publication Scientific Reports Abbreviated Journal Sci Rep  
  Volume 10 Issue 1 Pages 12 pp  
  Keywords  
  Abstract Soot emissions from flaming combustion are relevant as a significant source of atmospheric pollution and as a source of nanomaterials. Candles are interesting targets for soot characterization studies since they burn complex fuels with a large number of carbon atoms, and yield stable and repeatable flames. We characterized the soot particle size distributions in a candle flame using the planar two-color time-resolved laser induced incandescence (2D-2C TiRe-LII) technique, which has been successfully applied to different combustion applications, but never before on a candle flame. Soot particles are heated with a planar laser sheet to temperatures above the normal flame temperatures. The incandescent soot particles emit thermal radiation, which decays over time when the particles cool down to the flame temperature. By analyzing the temporal decay of the incandescence signal, soot particle size distributions within the flame are obtained. Our results are consistent with previous works, and show that the outer edges of the flame are characterized by larger particles (approximate to 60 nm), whereas smaller particles (approximate to 25 nm) are found in the central regions. We also show that our effective temperature estimates have a maximum error of 100 K at early times, which decreases as the particles cool.  
  Address [Verdugo, Ignacio; Jose Cruz, Juan; Alvarez, Emilio; Fuentes, Andres] Univ Tecn Federico Santa Maria, Dept Ind, Av Espana 1680,Casilla 110-V, Valparaiso, Chile, Email: andres.fuentes@usm.cl  
  Corporate Author Thesis  
  Publisher Nature Publishing Group Place of Publication Editor  
  Language English 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:000548564900078 Approved  
  Call Number UAI @ eduardo.moreno @ Serial 1178  
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