城市内涝诊断及预警v1.0

产品内容为积水深度模拟分析结果，用于反映不同情景下区域积水深度的空间分布特征。结果文件为weg格式并进行gzip压缩。weg为二进制格式，编码规则如下：
（1）前4字节为属性信息的字节数。
（2）属性信息：字节长度见（1），保存了积水深度数据的数值类型、形状大小、经纬坐标等信息。可使用utf-8解码为json，json中字段含义如下：
dtype：积水数据的数值类型。
width：积水数据的数组列数。
height：积水数据的数组行数。
min：积水数据的最小值。
max：积水数据的最大值。
median：积水数据的中值。
north：积水数据的北边界纬度。
south：积水数据的南边界纬度。
west：积水数据的西边界经度。
east：积水数据的东边界经度。
（3）积水数据：（1）（2）之后的所有字节均为积水数据，具体字节长度为height*width*N，N为dtype类型的字节数。所有积水数据可按顺序重排为形状为height*width的积水深度数组，列方向为从西向东，行方向为从北向南。

This dataset product comprises simulation and analysis results of water depth, which are intended to characterize the spatial distribution patterns of regional water depth under various scenarios.
The result files are in the weg format and compressed with gzip. The weg format is a binary format with the following encoding rules:
(1) The first 4 bytes indicate the total byte length of the attribute information.
(2) Attribute information: The byte length is specified in (1). This segment stores information such as the numerical data type, array shape, and geographic coordinates of the water depth data. It can be decoded into a JSON string using UTF-8 encoding. The meanings of the fields in the JSON are as follows:
dtype: The numerical data type of the water depth data.
width: The number of columns in the water depth data array.
height: The number of rows in the water depth data array.
min: The minimum value of the water depth data.
max: The maximum value of the water depth data.
median: The median value of the water depth data.
north: The latitude of the northern boundary of the water depth dataset.
south: The latitude of the southern boundary of the water depth dataset.
west: The longitude of the western boundary of the water depth dataset.
east: The longitude of the eastern boundary of the water depth dataset.
(3) Water depth data: All bytes following the segments (1) and (2) constitute the water depth data. The total byte length of this segment is height × width × N, where N represents the byte count of the dtype data type. All water depth data can be rearranged in sequence into a water depth array with a shape of height × width, where the column direction runs from west to east, and the row direction runs from north to south.

搜集汇总

背景与挑战

背景概述

该数据集是一个名为'城市内涝诊断及预警v1.0'的数据技术算法产品，专注于城市内涝的诊断与预警应用场景。它由上海市气象信息与技术支持中心及相关个人联合申请，于2026年2月2日公示，属于数据应用场景类算法工具，旨在通过技术手段帮助预测和管理城市内涝风险。