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Rainfall Sensitivity to Microphysics and Planetary Boundary Layer Parameterizations in Convection-Permitting Simulations over Northwestern South America

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journal of Meteorological Research 2024年第4期38卷 805-825页

作者： K.Santiago HERNANDEZ Sebastian GOMEZ-RIOS juan j.henao Vanessa ROBLEDO Alvaro RAMiREZ-CARDONA Angela M.RENDON Geolimna Escuela AmbientalFacultad de IngenieriaUniversidad de AntioquiaMedellin 050010Colombia Grupo de Ingenieria y Gestion Ambiental(GIGA) Escuela AmbientalFacultad de IngenieriaUniversidad de AntioquiaMedellin 050010Colombia Division of Atmospheric Sciences Desert Research InstituteRenoNV 89512USA

Convection-permitting modeling allows us to understand mechanisms that influence rainfall in specific ***,microphysics parameterization(MP) and planetary boundary layer(PBL) schemes remain an important source of uncertainty,affecting rainfall intensity,occurrence,duration,and ***,we study the sensitivity of rainfall to three MP [Weather Research and Forecasting(WRF) Single-Moment 6-class(WSM6),Thompson,and Morrison] and two PBL [the Yonsei University(YSU) and Mellor–Yamada Nakanishi Niino(MYNN)] schemes with a convection-permitting resolution(4 km) over northwestern South America(NWSA).Simulations were performed by using the WRF model and the results were evaluated against soundings,rain gauges,and satellite data,considering the spatio-temporal variability of rainfall over diverse regions prone to deep convection in *** and PBL schemes largely influenced simulated rainfall,with better results for the less computationally expensive WSM6 MP and YSU PBL *** rain gauges and satellite estimates,simulations with Morrison MP overestimated rainfall,especially westward of the Andes,whereas the MYNN PBL underestimated precipitation in the Amazon–Savannas *** found that the uncertainty in the rainfall representation is highly dependent on the region,with a higher influence of MP in the Colombian Pacific and PBL in the Amazon–Savannas *** analyzing rainfall-related processes,the selection of both MP and PBL parameterizations exerted a large influence on the simulated lower tropospheric moisture flux and moisture *** schemes significantly influenced the downward shortwave radiation,with MYNN simulating a greater amount of low clouds,which decreased the radiation ***,latent heat fluxes were greater for YSU,favoring moist convection and *** schemes had a marked impact on vertical ***,Morrison MP showed stronger convection and higher precipitation rates,which is assoc

关键词： sensitivity microphysics planetary boundary layer(PBL) Weather Research and Forecasting(WRF) processes

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Seropositivity for Trypanosoma cruzi in domestic dogs from Sonora,Mexico

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Infectious Diseases of Poverty 2017年第1期6卷 1067-1073页

作者： Minerva Arce-Fonseca Silvia C.Carrillo-Sanchez Ramon M.Molina-Barrios Mariana Martinez-Cruz jesus R.Cedillo-Cobian Yuly A.henao-Diaz Olivia Rodriguez-Morales Department of Molecular Biology National Institute of Cardiology“Ignacio Chavez”Juan Badiano No.1Col.Seccion XVIDelegacion Tlalpan14080 Mexico CityMexico Department of Agronomics and Veterinary Sciences Technological Institute of Sonora5 de Febrero 818 SurCentro85000Cd ObregonMexico CitySonoraMexico

Background:Chagas disease is an important health problem in Latin America due to its incapacitating effects and associated *** on seropositivity for Trypanosoma cruzi in Mexican dogs have demonstrated a direct correlation between seropositivity in humans and dogs,which can act as sentinels for the disease in this *** objective of this study was to determine the seropositivity for *** infection in dogs from Sonora,a northern borderstate of ***:Responsible pet owners were selected at random from an urban area of Empalme municipality,Sonora,Mexico,and from there,180 dog samples were *** antibodies were determined using the enzymelinked immunosorbent assay(ELISA)*** ELISA sera were processed by indirect immunofluorescence to confirm the presence of *** *** the statistical analysis,chi-square tests were ***:Dogs’sera showed a seropositivity rate of 4.44%.The rate of seropositivity was not associated with the dogs’age,sex,or socioeconomics pertaining to the geographical *** sample(1/180,0.55%)showed the acute state of the ***:The study found a presence of *** antibodies in dogs in this area,which suggests vector *** is a need for active surveillance programs throughout the state of Sonora and vector control strategies should also be implemented in endemic regions.

关键词： Chagas disease Epidemiology Reservoir US-Mexico border dogs Trypanosoma cruzi Mexico

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