SGER: Creation of a Homogeneous Self-Consistent Tropical Cyclone Intensity Database for the Immediate Purpose of Performing Global Intensity Trend Analyses

PI将利用一个新的数据库来研究热带气旋（TC）的强度和趋势。该数据库包括1983年至今的全球红外图像，最近由NOAA国家气候数据中心（NCDC）建立。PI将对数据库应用客观算法，形成20多年不间断的3小时全球TC强度估计的均匀自一致集合。然后将对这些估计进行趋势分析。提出这项工作的动机是在目前的TC强度测量和估计档案中存在显著的不一致。这些档案包含了所谓的“最佳轨迹”数据。这项研究将直接解决在过去23年中TC强度是否表现出任何显著的年际趋势。PI将创建的同质数据库将使他能够考虑趋势，而无需考虑与当前最佳跟踪数据的不同质性相关的许多警告。更广泛的影响：在变暖的环境中，总温度强度是否在增加，这一问题与我们全球社会的利益和关切密切相关，并对全球沿海社区死亡和破坏的潜在趋势具有广泛的影响。

The PI will take advantage of a new database to study tropical cyclone (TC) intensity and trends. The database, which comprises global infrared (IR) imagery for the period 1983 to present, has recently been constructed at the NOAA National Climate Data Center (NCDC). The PI will apply an objective algorithm to the database to form a homogeneous self-consistent collection of over 20 years of uninterrupted 3-hourly global TC intensity estimates. These estimates will then be subjected to trend analyses. The proposed work is motivated by the presence of significant inconsistencies in the present archives of TC intensity measurements and estimates. These archives comprise what is known as "best track" data. This research will directly address whether TC intensity has exhibited any significant interannual trends during the past 23 years. The homogeneous database that the PI will create will allow him to consider trends without the numerous caveats related to the inhomogeneity of the present best track data. Broader Impacts: The question of whether overall TC intensity is increasing in a warming environment is very relevant to the interests and concerns of our global society and has broad implications in regard to potential trends in death and destruction within coastal communities worldwide.