Recalculations of pack ice and lead surface energy budgets during the Arctic Leads Experiment (LEADEX) 1992
Recalculations of pack ice and lead surface energy budgets during the Arctic Leads Experiment (LEADEX) 1992
复制标题
1992 年北极铅实验 (LEADEX) 期间浮冰和铅表面能量预算的重新计算
DOI：
10.1029/97jc02045
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发表时间：
1997
影响因子：
--
通讯作者：
C. Fairall
中科院分区：
文献类型：
--
作者：
P. Persson;D. Ruffieux;C. Fairall
由于在计算Eppley辐射计的长波辐射通量时发现了两个错误，因此有必要重新计算北极铅实验(LEADEX)期间的冰盖和地表能量收支。造成观测差异的主要误差是过去20年来用于从Eppley辐射计获取长波辐射通量的关系。本文重点研究了这些因素对LEADEX数据的影响。这些误差的主要影响是长波通量和皮肤温度日变化幅度的减小，感热传递系数(CH)估计的增加和视日循环的消除，以及在引线4部署期间对更稳定的近地面背景大气的解释。目前，阻力系数(CD)和CH的平均10-m中性值分别为1.4 6×10−3和1.4 0×10−3。
Because of the discovery of two errors in the calculations of long-wave radiative fluxes from the Eppley radiometers, a recalculation of the ice pack and surface energy budgets during the Arctic Leads Experiment (LEADEX) was necessary. The error principally contributing to the observed differences was in the relationships that have been used for obtaining long-wave radiative fluxes from Eppley radiometers for the past 20 years. This paper focuses on the impacts on the LEADEX data. The main impacts of the corrections of these errors are decreases in the amplitudes of the diurnal variations of the long-wave fluxes and the skin temperature; an increase in the estimate of the sensible heat transfer coefficient (CH) and the removal of its apparent diurnal cycle; and an interpretation of a more stable near-surface background atmosphere during the deployment to Lead 4. Average 10-m neutral values of the drag coefficient (CD) and CH are now found to be 1.46×10−3 and 1.40×10−3, respectively.