Keterkaitan Variasi Sinar Kosmik dengan Tutupan Awan
DOI:
https://doi.org/10.26418/positron.v5i1.9801Keywords:
pemanasan global, sinar kosmik, tutupan awanAbstract
Sinar kosmik merupakan salah satu faktor dari luar angkasa yang mempengaruhi pemanasan global melalui pengaruhnya terhadap proses pembentukan tutupan awan. Sinar kosmik dapat mempengaruhi proses pembentukan tutupan awan melalui mekanisme ion-aerosol clear-air dan mekanisme ion-aerosol near-cloud. Sinar kosmik berperan sebagai sumber energi yang mengionisasi aerosol sehingga mempercepat pembentukan inti kondensasi awan. Sinar kosmik dikorelasikan dengan awan global menggunakan klasifikasi ISCCP yang membagi awan menjadi sembilan jenis dari tahun 1984 sampai 2008. Sinar kosmik memiliki korelasi positif dengan tutupan awan rendah (untuk jenis Stratocumulus dan Stratus) dan tutupan awan tinggi (untuk jenis Cirrus).
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