The largest lake in China Qinghai Lake lies

From May to October, rain samples were taken with a “collector”, composed of a polyethylene tank and a funnel, fitted a ping-pong ball to prevent TMC647055 of the sample once collected. From November to April, snow and sleet samples were collected using a vat installed on the ground and then melted in an airtight container at room temperature. All precipitation samples were measured and transferred into 100-mL high-density polyethylene square bottles for isotopic analyses.