LES results to accompany measurements at the POLARSTERN Research Vessel during the PASCAL field campaign on 7 June 2017

This archive contains Large Eddy Simulation (LES) results to accompany measurements made at the Polarstern Research Vessel during the PASCAL field campaign on 7 June 2017, when the Polarstern was located in the sea ice north of Svalbard. The Dutch Atmospheric Large-Eddy Simulation model (DALES) was applied, adopting a Lagrangian framework that follows domains as embedded in relatively warm air masses as they moved towards the Polarstern. The simulated doubly periodic domain has a size of 2.56x2.56x1.28 km, discretized at a resolution of 20x20x10 m. The domain arrives at the Polarstern at 10:48 UTC on 7 June 2017 coinciding with a radiosonde release. The Polarstern was located at 10.93 E, 81.18 N.The large-scale forcings are derived from ECMWF analysis and forecast data. Adjustments were made in the initial profiles to correct for biases in the analysis state concerning inversion height, mixed layer temperature and the presence of Specific Humidity Inversions (SHI). […]

本档案收录了伴随于2017年6月7日PASCAL实地考察期间，在极星号研究船上所进行的测量结果的大型涡模拟（LES）数据。在该考察中，极星号位于斯瓦尔巴德北部海域的海冰之上。采用了荷兰大气大型涡模拟模型（DALES），并采用拉格朗日框架，追踪嵌入在相对温暖的空气团中的领域，随着这些空气团向极星号移动。所模拟的双周期域大小为2.56x2.56x1.28平方公里，以20x20x10米的分辨率进行离散化。该域于2017年6月7日10:48 UTC抵达极星号，与无线电探空仪释放同步。极星号位于东经10.93度，北纬81.18度。大规模强迫项来源于ECMWF分析及预报数据。在初始廓线中对分析状态中的逆温高度、混合层温度以及存在特定湿度逆温（SHI）等方面的偏差进行了修正。