High-resolution electric service interruptions map and CBG-level share of population interrupted in Texas during the February 2021 winter storm.

The data package includes two files: a TIFF file and a CSV file. The TIFF file (raster) represents a binary power interruptions map of the Texas region during the February 2021 winter storm. This map has a spatial resolution of 15 arc-seconds and was generated by detecting power interruptions in a composite nighttime lights image of the Texas region from February 14-18, 2021. Each pixel in the map corresponds to a geographical location and indicates whether an interruption was detected in that location or not. A pixel with a value of 1 represents an interruption, while a pixel with a value of 0 represents no interruption. In most cases, the missing pixels indicate the absence of population, but in some cases, they indicate data unavailability. The dataset also includes a CSV file that provides the estimated share of population in outage in each Census block group (CBG) of the Texas region. This file was created by aggregating pixel-level outage values from the TIFF file to the CBG level. Together, the TIFF and CSV files in the dataset provide a detailed view of the electric service interruptions that were observed across the Texas region during the severe winter storm of February 2021.

本数据包包含两类文件：TIFF文件（Tagged Image File Format）与CSV文件（Comma-Separated Values）。
该TIFF文件为栅格数据，呈现了2021年2月冬季风暴期间美国德克萨斯州区域的二值化电力中断分布图，其空间分辨率为15角秒，生成方式为：基于2021年2月14日至18日德克萨斯州区域的合成夜间灯光影像，检测其中的电力中断事件。
地图中的每个像素对应一个地理位置，用于标识该位置是否检测到电力中断：像素值为1代表该位置发生电力中断，像素值为0则代表未发生中断。
多数情况下，缺失像素代表该区域无人口分布，但部分缺失像素则代表数据不可获取。
本数据包还包含一个CSV文件，该文件提供了德克萨斯州区域内每个人口普查街区组（Census Block Group，CBG）中受停电影响人口的预估占比，该文件通过将TIFF文件中的像素级停电检测值聚合至CBG层级而生成。
本数据包中的TIFF与CSV文件相辅相成，可完整呈现2021年2月强冬季风暴期间德克萨斯州全域观测到的电力服务中断情况。