Severe Weather Data Inventory (SWDI)

The Severe Weather Data Inventory (SWDI) is an integrated database of severe weather records for the United States. SWDI enables a user to search through a variety of source data sets in the NCDC (now NCEI) archive in order to find records covering a particular time period and geographic region, and then to download the results of the search in a variety of formats. The formats currently supported are Shapefile (for GIS), KMZ (for Google Earth), CSV (comma-separated), and XML. The current data layers in SWDI are: Storm Cells from NEXRAD (Level-III Storm Structure Product); Hail Signatures from NEXRAD (Level-III Hail Product); Mesocyclone Signatures from NEXRAD (Level-III Meso Product); Digital Mesocyclone Detection Algorithm from NEXRAD (Level-III MDA Product); Tornado Signature from NEXRAD (Level-III TVS Product); Preliminary Local Storm Reports from the NOAA National Weather Service; Lightning Strikes from Vaisala NLDN.《严重天气数据库存》（Severe Weather Data Inventory，简称SWDI）乃是美国严重天气记录的集成数据库。该数据库允许用户在NCDC（现更名为NCEI）的存档中搜索多种源数据集，以便找到特定时间段和地理区域的记录，并能以多种格式下载搜索结果。当前支持的数据格式包括Shapefile（用于地理信息系统）、KMZ（用于谷歌地球）、CSV（逗号分隔值）和XML。SWDI当前的数据层包括：NEXRAD的暴风云细胞（Level-III暴风云结构产品）、NEXRAD的冰雹特征（Level-III冰雹产品）、NEXRAD的中气旋特征（Level-III中气旋产品）、NEXRAD的数字中气旋检测算法（Level-III MDA产品）、NEXRAD的龙卷风特征（Level-III TVS产品）、NOAA国家气象服务发布的初步地方风暴报告以及Vaisala NLDN的闪电击中记录。

搜集汇总

背景与挑战

背景概述

Severe Weather Data Inventory (SWDI)是一个美国恶劣天气记录的集成数据库，支持多种格式下载，包含NEXRAD雷达数据和NOAA国家气象局报告等多源数据，覆盖1995年至今并持续更新。