LACE 98和LITFASS 98试验期间气溶胶光学深度和水汽柱含量的联合逐日监测
Combined Daily Monitoring of Aerosol Optical Depths and Water Vapour Column Content during LACE 98 and LITFASS 98 Experiments
摘要：
1998年夏季，在林登贝格气象台（MOL）进行了两次大规模的综合活动，LITFASS 98（5月25日至6月22日）和LACE 98（7月13日至8月14日）。这两项实验的目的都是集中每天对大气状况进行观测，并确定林登伯格上空垂直柱（林登伯格柱）的基本气象参数。大约有20个德国研究机构以及来自荷兰、奥地利和俄罗斯的一个研究机构参加了实验。在林登贝格和法尔肯贝格使用了各种地面仪器，包括激光雷达、微波辐射计和无线电探空仪，并辅以系留气球和飞机测量。MOL的恒星和太阳光度计首次与其他地球物理工具一起使用。除了在绝对多云的条件下，几乎每天白天和黑夜都用这两种光度计进行观测。普尔科沃天文台（俄罗斯）开发的一系列程序立即处理了观测数据，并在每日简报中介绍了结果（气溶胶光学深度和水汽柱含量的每日变化）。将这些结果与无线电探空仪和微波辐射计的数据进行比较，证明光度计数据对校准其他地面观测和卫星测量是有用的。
英文摘要：
During summer of 1998 two large-scale complex campaigns, LITFASS98 (May 25th to June 22nd) and LACE98 (July 13th to August 14th), took place at the Meteorological Observatory Lindenberg (MOL). The aim of both experiments focus on the intensive daily observations of atmospheric conditions and the determination of their fundamental meteorological parameters in the vertical column over Lindenberg (Lindenberg's Column). About 20 German research institutions and addition one from the Netherlands, Austria and Russia participated at the experiments. A wide variety of ground-based instruments was operated in Lindenberg and Falkenberg, including LIDARs, microwave radiometer and radiosondes complemented by tethered balloons and aircraft measurements. For the first time the star- and sunphotometer of MOL were used together with other geophysical tools. The observations with both photometers were carried out practically every day and night except during absolutely overcast conditions. The observed data were processed immediately by a series of programs developed at Pulkovo Observatory (Russia), and the results (daily variations of aerosol optical depths and water vapour column content) were presented at daily briefings. The comparison of these results with radiosonde and microwave radiometer data demonstrated the usefulness of photometer data for the calibration of other ground-based observations and satellite measurements.
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