Northern Hemisphere Cyclone Locations and Characteristics from NCEP/NCAR Reanalysis Data, Version 1

This data set comprises a 58-year record of daily extratropical cyclone statistics computed for the Northern Hemisphere. Cyclone locations and characteristics were obtained by applying the updated Serreze (1997) algorithm to daily Sea Level Pressure (SLP) data at six-hour intervals (Serreze and Barrett 2008). The SLP source data are part of the National Centers for Environmental Prediction (NCEP) and National Center for Atmospheric Research (NCAR) Reanalysis data set, an assimilation of various atmospheric data collected by a wide variety of sensors within a global weather model.本数据集包含针对北半球计算得到的58年逐日温带气旋统计记录。通过将更新后的Serreze（1997）算法应用于每6小时间隔的逐日海平面气压（Sea Level Pressure, SLP）数据，可获取气旋的位置与特征信息（Serreze与Barrett，2008）。该海平面气压源数据隶属于美国国家环境预报中心（National Centers for Environmental Prediction, NCEP）与美国国家大气研究中心（National Center for Atmospheric Research, NCAR）再分析数据集，该数据集是通过将全球气象模式中各类传感器采集的多种大气数据进行同化处理得到的。