Dataset of Sentinel-1 SAR and Sentinel-2 NDVI Imagery

The data set consists of filtered and processed GeoTIFF (.tif) images taken from the Google Earth Engine catalog. The data provided is a main folder that contains the images and an Excel file called Data.xlsx that contains the information with which the image collections are filtered and processed, in addition to some properties such as averages of percentage of vegetation, cloudiness and water. The intention of the data is to seek generality so that it can be taught to a supervised artificial intelligence model.

In the main folder there are 3 subfolders that contain the cropped images with a size of 512x512 pixels, within the 'SAR' subfolder there are 2 folders that are the polarizations delivered by Sentinel-1. The data was collected automatically using Google Colaboratory.It should be noted that SAR images and their corresponding optical and NDVI images are provided, this means that the 4 images (VV-VH-OPTICAL-NDVI) are in the same area.

本数据集由经筛选与预处理的GeoTIFF（.tif）格式图像组成，所有图像均取自谷歌地球引擎（Google Earth Engine）公开目录。本次提供的数据包含一个主文件夹与一个名为"Data.xlsx"的Excel文件：主文件夹内存储全部图像文件，Excel文件则包含用于筛选与处理图像集的相关参数，此外还涵盖植被占比、云量占比及水体占比的平均值等多项属性。本数据集的设计目标是具备通用性，以支持监督式人工智能模型的训练工作。

主文件夹下设3个子文件夹，均存储尺寸为512×512像素的裁切图像；其中名为"SAR"的子文件夹下包含2个文件夹，对应Sentinel-1卫星采集的两种极化方式数据。本数据集通过谷歌Colaboratory（Google Colaboratory）自动采集完成。需特别说明的是，本次数据集同时提供合成孔径雷达（SAR）图像及其对应的光学图像与归一化植被指数（NDVI）图像，即VV、VH、光学图像及NDVI这4幅图像均对应同一地理区域。