"1" . "" . "accepted"@en . . "SDN:P07::CF12S60" . . "1" . "SDN:P07::CF12S60" . . . "tendency_of_middle_atmosphere_moles_of_molecular_hydrogen"@en . . "2009-07-06 16:21:17.0" . "false" . . "SDN:P07::CF12S60" . "\"tendency_of_X\" means derivative of X with respect to time. The construction \"middle_atmosphere_moles_of_X\" means the total number of moles of X in the troposphere and stratosphere, i.e. summed over that part of the atmospheric column and over the entire globe. The chemical formula for molecular hydrogen is H2."@en . . . "2009-07-06 16:21:17.0" .