%0 Journal Article
%T An Assessment of Storage Terms in the Surface Energy Balance of a Subalpine Meadow in Northwest China
%A WANG Runyuan
%A ZHANG Qiang College of Atmospheric Sciences
%A Lanzhou University
%A Lanzhou Key Open Laboratory of Arid Climatic Change
%A Disaster Reduction of CMA
%A
%J 大气科学进展
%D 2011
%I
%X The heat storage terms in the soil--vegetation--atmosphere system may play an important role in the surface energy budget. In this paper, we evaluate the heat storage terms of a subalpine meadow based on a field experiment conducted in the complex terrain of the eastern Qilian Mountains of Northwest China and their impact on the closure of the surface energy balance under such non-ideal conditions. During the night, the average sum of the storage terms was -5.5 W m-2, which corresponded to 10.4% of net radiation. The sum of the terms became positive at 0730 LST and negative again at about 1500 LST, with a maximum value of 19 W m-2 observed at approximately 0830 LST. During the day, the average of the sum of the storage terms was 6.5 W m-2, which corresponded to 4.0% of net radiation. According to the slopes obtained when linear regression of the net radiation and partitioned fluxes was forced through the origin, there is an imbalance of 14.0% in the subalpine meadow when the storage terms are not considered in the surface energy balance. This imbalance was improved by 3.4% by calculating the sum of the storage terms. The soil heat storage flux gave the highest contribution (1.59%), while the vegetation enthalpy change and the rest of the storage terms were responsible for improvements of 1.04% and 0.77%, respectively.
%K subalpine meadow
%K complex terrain
%K surface energy balance
%K storage terms
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=5434AFBF6CB6E7E8D67733B541F211C7&aid=ED23C992AAC1FC26F7747FEE69777B63&yid=9377ED8094509821&vid=D3E34374A0D77D7F&iid=38B194292C032A66&sid=09F7C8D609E885AE&eid=6CDD207A90CE1EEC&journal_id=0256-1530&journal_name=大气科学进展&referenced_num=0&reference_num=35