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Frontiers | The Recent Relationships Between Andean Ice-Core Dust Record and Madeira River Suspended Sediments on the Wet Season

Dust particle studies in ice cores from the tropical Andes provide important information about climate dynamics. We investigated dust concentrations from a 22.7 m ice-core recovered from the Quelccaya Ice Cap (QIC) in 2018, representing 14 years of snow accumulation. The dust seasonality signal was still preserved with homogenization of the record due to surface melting and percolation. Using a microparticle counter, we measured the dust concentration from 2–60 μm and divided the annual dust concentration into three distinct groups: fine particle percentage (FPP, 2−10 μm), coarse particle percentage (CPP, 10−20 μm), and giant particle percentage (GPP, 20−60 μm). Increased dust was associated with the warm stage of the Pacific Decadal Oscillation index (PDO) after 2013 with significant increases in FPP and a relative decrease in CPP and GPP. There was a positive correlation between PDO and FPP (r = 0.70, p-value < 0.005). CPP and GPP were dominant during the mainly PDO co ....

Madre De Dios , Amazon Basin , Brazil General , Distrito Federal , United States , Rio Grande Do Sul , Bolivian Andes , Bolivia General , Amazon River , Nevado Illimani , La Paz , Rocha Ribeiro , Estado Do Rio , Porto Velho , Cordillera Vilcanota , Cordillera Blanca , Setember November Hurley , Pacific Ocean Perry , Lavado Casimiro , Atlantic Ocean , Andes Perry , Pacific Ocean , Espinoza Villar , August Espinoza , Gutierrez Caloir , Danandeh Mehr ,

Climate, Peace and Security Fact Sheet Somalia - Somalia


Climate, Peace and Security Fact Sheet Somalia
Format
Somalia is highly susceptible to the effects of climate change and extreme weather. Without anticipatory preventive approaches, these factors are likely to exacerbate existing vulnerabilities and reduce the people’s livelihood options, which in turn may have negative impacts for stability and security in Somalia.
More frequent and intense droughts and floods undermine food security and worsen livelihood conditions in Somalia, adversely affecting marginalized groups, fuelling grievances, increasing competition over scarce resources and exacerbating existing community tensions and vulnerabilities. This has complex and interlinked implications for the peace and security situation in Somalia, including: ....

United States , Wilayat Bahr Al Jabal , South Sudan , Benadir Region , Majid Mcdowell , Maystadt Ecker , Al Shabaab , Kinyiris Dalmar , Strategic Foresight Group , National Communication For Somalia , Ministry Of National Resources , International Security , United National Framework Convention On Climate Change , Disaggregating Ethnic Group Livestock Raiding , Applications Centre , Hydrological Sciences Journal , World Food Programme , Oxford University , Un Security Council , United Nations Assistance Mission , Stockholm International Peace Research Institute Ed , Journal Of Peace Research , Somali Security , Intergovernmental Authority On Development Conflict Early Warning , African Union Mission , World Bank ,