Drag coefficient and its sea state dependence under tropical cyclones

These data are for the publication, which estimates the drag coefficient under 5 tropical cyclones by combing model simulations and EM-APEX float observations: "Zhou, Xiaohui, et al. "Drag coefficient and its sea state dependence under tropical cyclones." Journal of Physical Oceanography (2022), DOI:https://doi.org/10.1175/JPO-D-21-0246.1 " There are Six folders: (1) URIWindForcing: The 10-meter wind field of 5 TCs created by URI Parametric Wind model, which are used in this study; (2) U10_at_SFMR_Surveys: URI Wind Speed at SMFR survey location and time; (3) U10_Hs_at_NDBC: URI wind Speed and NDBC buoy observed wind speed at NDBC buoys; WW3 simulated significant wave height (hs) and NDBC buoy observed significant wave height at NDBC buoys; (4) Drag_Estimation_in_front_of_TCs_Fig9_10_11: the drag estimates based on EM-APEX observations and URI wind field in front of 5 TCs; (5) Drag_Estimation_and_WaveParameters_under_each_TC_Fig14_21: The Momentum Budget/Drag estimation based on model simulation and EM-APEX observations. The WW3 simulated significant wave height (Hs), wave age, input wave age, the wavelength at peak frequency (Lp), and misalignment between wind and wave (psi) are included. (6) EM-APEX_observations: The wind-driven current at EM-APEX floats under 5 TCs, it is from Dr. Je-Yuan Hsu at National Taiwan University and Dr. Eric D'Asaro at the University of Washington.本数据集配套发表论文，该论文通过结合模式模拟与EM-APEX浮标（EM-APEX float）观测数据，估算了5场热带气旋下的拖曳系数（drag coefficient）： "Zhou, Xiaohui, 等人. "热带气旋下的拖曳系数及其海况依赖性". 《物理海洋学杂志》(2022), DOI:https://doi.org/10.1175/JPO-D-21-0246.1" 本数据集共包含6个文件夹： (1) URIWindForcing：本研究采用的由URI参数化风场模型（URI Parametric Wind model）生成的5场热带气旋10米高度风场数据； (2) U10_at_SFMR_Surveys：SMFR观测点位与对应时刻的URI风速数据； (3) U10_Hs_at_NDBC：NDBC浮标站点处的URI风速与国家数据浮标中心（National Data Buoy Center, NDBC）浮标实测风速数据；同时包含WW3模拟有效波高（Hs）与NDBC浮标实测有效波高数据； (4) Drag_Estimation_in_front_of_TCs_Fig9_10_11：基于5场热带气旋前方的EM-APEX浮标观测数据与URI风场得到的拖曳系数估算结果，对应图9、10、11； (5) Drag_Estimation_and_WaveParameters_under_each_TC_Fig14_21：基于模式模拟与EM-APEX浮标观测得到的动量收支（Momentum Budget）与拖曳系数估算结果，包含WW3模拟有效波高（Hs）、波龄、输入波龄、峰值频率波长（Lp）以及风与浪的偏角（psi），对应图14至21； (6) EM-APEX_observations：5场热带气旋下EM-APEX浮标处的风驱海流数据，该数据由中国台湾大学Je-Yuan Hsu博士与华盛顿大学Eric D'Asaro博士提供。